Datasheet

ManualsBrandsNXP Manualsaudio & home theatreTEF6901AH

1. General description

The TEF6901A is a single-chip car radio integrated circuit with FM/AM tuner, stereo

decoder, weak signal processing and audio processing. Radio Data System (RDS)/Radio

Broadcast Data System (RBDS) demodulator for radio data reception is included.

FM tuner with double conversion to IF1 = 10.7 MHz and IF2 = 450 kHz with integrated

image rejection for both IF1 and IF2; integrated channel ﬁlter with variable bandwidth

control; capable of US FM, Europe FM, Japan FM and Eastern Europe FM. AM tuner with

double conversion to IF1 = 10.7 MHz and IF2 = 450 kHz; capable of Long Wave (LW),

Medium Wave (MW) and full range Short Wave (SW) (11 m to 120 m bands).

Multiplex (MPX) stereo decoder, ignition noise blanker and extensive weak signal

processing.

Audio processing with ﬂexible source selection, volume, balance, fader, input gain control

and inaudible tuning mute. Integrated audio ﬁlters for bass and treble and loudness control

function.

The device can be controlled via the fast-mode I

C-bus (400 kHz) and includes

autonomous tuning functions for easy control without microcontroller timing. No manual

alignments are required.

2. Features

n FM Radio Frequency (RF) front-end with large dynamic range

n Integrated FM channel ﬁlter with controlled bandwidth

n Fully integrated FM demodulator

n Fully integrated stereo decoder with high immunity for birdy noise

n FM noise blanker with adaptive detection at MPX and level

n Signal quality detection: level, AM wideband, frequency deviation, ultrasonic

noise/adjacent channel

n FM weak signal processing: stereo blend, high cut control and soft mute

n AM RF Automatic Gain Control (AGC) circuit for external cascode AGC and Positive

Intrinsic Negative (PIN) diode AGC

n Dual AM noise blanking system

n AM weak signal processing: high cut control and soft mute

n Low phase noise local oscillator

n In-lock detection for optimized adaptive Phase-Locked Loop (PLL) tuning speed

n Crystal oscillator reference with low harmonics

n Inaudible soft slope tuning mute for AM and FM

n Sequential state machine supporting each tuning action

TEF6901A

Integrated car radio

Rev. 03 — 20 March 2008 Product data sheet

Summary of content (107 pages)

PAGE 1
TEF6901A Integrated car radio Rev. 03 — 20 March 2008 Product data sheet 1. General description The TEF6901A is a single-chip car radio integrated circuit with FM/AM tuner, stereo decoder, weak signal processing and audio processing. Radio Data System (RDS)/Radio Broadcast Data System (RBDS) demodulator for radio data reception is included. FM tuner with double conversion to IF1 = 10.
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TEF6901A NXP Semiconductors Integrated car radio n n n n n n n n Integrated RDS/RBDS radio data demodulator Flexible audio input source selection Integrated audio processing and tone filtering Treble, bass and loudness tone control Volume, balance, fader and input gain control Audio controls with Audio Step Interpolation (ASI) for pop-free function Compact Disc (CD) dynamics compression Volume Unit (VU)-meter audio level read-out 3. Quick reference data Table 1.
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TEF6901A NXP Semiconductors Integrated car radio Table 1. Symbol Quick reference data …continued Parameter Conditions Min Typ Max Unit Stereo decoder path αcs channel separation fFMMPX = 1 kHz 40 - - dB S/N signal-to-noise ratio fMPXAMIN = 20 Hz to 15 kHz; referenced to 1 kHz at 91 % FM modulation; DEMP = 1 70 - - dB THD total harmonic distortion FM mode; DEMP = 1; measured with 15 kHz brick-wall low-pass filter; fMPXAMIN = 200 Hz to 15 kHz - - 0.
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TEF6901A NXP Semiconductors Integrated car radio 6. Pinning information 49 AGND 50 XTAL1 51 XTAL2 52 IND 53 INC 54 INBR 55 INBL 56 INAC 57 INAR 58 INAL 59 MPXAMIN 60 MPXAMOUT 61 VCCVCO 62 VCOFDB 63 VCOTNK 64 VCOGND 6.1 Pinning CPOUT 1 48 LFOUT VTUNE 2 47 RFOUT VCCPLL 3 46 LROUT PLLGND 4 45 RROUT i.c.
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TEF6901A NXP Semiconductors Integrated car radio Table 3. Pin description …continued Symbol Pin Description FMMIX1IN1 11 FM mixer 1 input 1 FMMIX1IN2 12 FM mixer 1 input 2 VCCRF 13 AM/FM RF supply voltage RFGND 14 RF ground IAMAGC 15 PIN diode current AM AGC i.c.
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TEF6901A NXP Semiconductors Integrated car radio Table 3.
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TEF6901A NXP Semiconductors Integrated car radio 7.5 FM limiter and level detection The limiter amplifies the IF filter output signal, removes AM modulations from the IF signal and supplies a well defined signal for the FM demodulator. From the limiter also the Radio Signal Strength Information (RSSI) is derived which is converted to a suitable level voltage with minimum temperature drift. 7.
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TEF6901A NXP Semiconductors Integrated car radio 7.12 Antenna DAA For FM operation the antenna Digital Auto Alignment (DAA) measures the VCO tuning voltage and multiplies it with a factor defined by the 7-bit DAA setting to generate a tuning voltage for the FM antenna tank circuit (RF selectivity). In AM mode the DAA setting controls a fixed voltage. 7.
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TEF6901A NXP Semiconductors Integrated car radio 7.21 FM stereo decoder A low-pass filter provides additional suppression of high frequency interferences at the stereo decoder input and the necessary signal delay for FM noise blanking. The MPX signal is decoded in the stereo decoder part. An integrated oscillator and pilot PLL is used for the regeneration of the 38 kHz subcarrier. The required 19 kHz and 38 kHz signals are generated by division of the oscillator output signal in logic circuitry.
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TEF6901A NXP Semiconductors Integrated car radio In the weak signal processing block these signals are combined in specific ways and used for the generation of control signals for soft mute, stereo blend (SNC = stereo noise control) and HCC. Detector time constants of soft mute, HCC and SNC can be selected independently. In AM mode, soft mute and HCC are controlled by the average value of the level voltage. 7.
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TEF6901A NXP Semiconductors Integrated car radio 7.31 Bass The bass tone control stage controls the low audio frequencies with a modified shelve curve response. The control range is between +14 dB and −14 dB in steps of 2 dB. Four different filter cut-off frequencies can be selected. 7.32 Treble The treble tone control stage controls the high audio frequencies with a shelve curve response. The control range is between +14 dB and −14 dB in steps of 2 dB.
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TEF6901A NXP Semiconductors Integrated car radio S SLAVE ADDRESS R ACK-s DATA ACK-m DATA NA data transferred (n − 1 bytes + acknowledge) P 001aad049 Fig 4. Read mode Table 4.
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TEF6901A NXP Semiconductors Integrated car radio 8.1.1 Read mode: data byte IFCOUNTER Table 6. IFCOUNTER - format of data byte 0 7 6 5 4 3 2 1 0 IFCM1 IFCM0 IFCS IFCA IFC3 IFC2 IFC1 IFC0 Table 7. IFCOUNTER - data byte 0 bit description Bit Symbol Description 7 and 6 IFCM[1:0] IF counter mode; IFCM reads 00 immediately after I2C-bus start of PRESET, SEARCH, AFU, JUMP or CHECK until the first IFC result of the new tuning is available.
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TEF6901A NXP Semiconductors Integrated car radio Table 8. IFC3 IF counter result …continued IFC2 IFC1 IFC0 Deviation from nominal value in FM Deviation from nominal value in AM IFCA = 0 IFCA = 1 IFCA = 0 IFCA = 1 1 1 0 1 13 kHz to 14 kHz 104 kHz to 112 kHz 6.5 kHz to 7 kHz 52 kHz to 56 kHz 1 1 1 0 14 kHz to 15 kHz 112 kHz to 120 kHz 7 kHz to 7.5 kHz 56 kHz to 60 kHz 1 1 1 1 15 kHz to 16 kHz ≥ 120 kHz 7.
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TEF6901A NXP Semiconductors Integrated car radio tuning for AF update f1 f2 time f2 2 ms f1 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 4 ms 8 ms 16 ms 32 ms 16 ms 8 ms counter time 4 ms 2 ms 2 ms reset I2C-bus register reset f1 hold of counter result of f2 until read-out 001aab786 read-out of counter result f2 Fig 6. IF counter in FM mode during and after AF update 8.1.2 Read mode: data byte LEVEL Table 9.
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TEF6901A NXP Semiconductors Integrated car radio 001aab521 4 VLEVEL (V) 3 2 1 0 10−4 10−3 10−2 10−1 1 10 102 VANT (mV) Fig 7. FM RF antenna input signal and level output voltage 8.1.3 Read mode: data byte USN/WAM Table 11. USN/WAM - format of data byte 2 7 6 5 4 3 2 1 0 USN3 USN2 USN1 USN0 WAM3 WAM2 WAM1 WAM0 Table 12.
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TEF6901A NXP Semiconductors Integrated car radio 8.1.4 Read mode: data byte MOD Table 13. MOD - format of data byte 3 7 6 5 4 3 2 1 0 MOD4 MOD3 MOD2 MOD1 MOD0 STIN TAS1 TAS0 Table 14. MOD - data byte 3 bit description Bit Symbol Description 7 to 3 MOD[4:0] modulation detector; this value indicates the audio modulation; see Table 15 FM between 0 kHz and 150 kHz FM deviation AM between 0 % and 200 % modulation FM offset detector; a read value of 31 indicates offset detection.
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TEF6901A NXP Semiconductors Integrated car radio Table 15. MOD detector …continued MOD4 MOD3 MOD2 MOD1 MOD0 FM radio ∆f AM radio m VU External source 0 1 1 0 1 47 kHz 63 % −4 dB 0.63 V 0 1 1 1 0 60 kHz 80 % −2 dB 0.8 V 0 1 1 1 1 75 kHz 100 % 0 dB 1V 1 0 0 0 0 95 kHz 125 % 2 dB 1.25 V 1 0 0 0 1 120 kHz 160 % 4 dB 1.
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TEF6901A NXP Semiconductors Integrated car radio 8.1.5 Read mode: data byte IFBW Table 16. IFBW - format of data byte 4 7 6 5 4 3 2 1 0 RAGC1 RAGC0 ASIA IFBW4 IFBW3 IFBW2 IFBW1 IFBW0 Table 17. IFBW - data byte 4 bit description Bit Symbol Description 7 and 6 RAGC[1:0] RF AGC indicator; PIN diode current on pins IAMAGC or IFMAGC 00 = FM: < 0.05 mA AM: < 0.1 mA 01 = FM: 0.05 mA to 0.5 mA AM: 0.1 mA to 0.5 mA 10 = 0.5 mA to 2.5 mA 11 = > 2.
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TEF6901A NXP Semiconductors Integrated car radio 8.1.7 Read mode: data byte TEMP Table 20. TEMP - format of data byte 6 7 6 5 4 3 2 1 0 TEMP7 TEMP6 TEMP5 TEMP4 TEMP3 TEMP2 TEMP1 TEMP0 Table 21. TEMP - data byte 6 bit description Bit Symbol Description 7 to 0 TEMP[7:0] on-chip temperature; 1 step ≈ 1 K; relative indication 8.2 Write mode The device is controlled by the I2C-bus.
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TEF6901A NXP Semiconductors Integrated car radio After power-on reset, all registers, including the reserved registers, should be initialized with their default settings (see Table 22) using a preset mode tuning action (see Table 25). The tuning mute circuit is muted. An action of the state machine is required to de-mute the circuit, for this purpose preset mode (bits MODE[2:0] = 001) is best fitted since it assures fast settling of all parameters before mute is released. Table 22.
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TEF6901A NXP Semiconductors Integrated car radio I2C-BUS MODE SA = 00h to 05h SA = 06h to 1Fh BUFFER REGISTER SA = 00h to 05h LOAD MODE DECODER PRESET, SEARCH STATE MACHINE AFU, JUMP, CHECK IF COUNTER WS DETECTORS WS PROCESSING TUNING MUTE SWAP PRELOAD CONTROL REGISTER SA = 00h to 05h SA = 06h to 1Fh TUNER AND AUDIO CIRCUIT 001aab522 Fig 8. I2C-bus and state machine control TEF6901A_3 Product data sheet © NXP B.V. 2008. All rights reserved. Rev.
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TEF6901A NXP Semiconductors Integrated car radio MODE = buffer or end SA = 2 address BUFFER MSA byte 2 byte 3 byte 4 P byte 0 previous previous byte 1 previous previous byte 2 previous byte 3 previous byte 4 previous byte 5 previous new new new new new new previous state machine stop for MODE = end only CONTROL byte 0 current current byte 1 current current byte 2 current current byte 3 current current byte 4 current current byte 5 current current 001aab523 Fi
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TEF6901A NXP Semiconductors Integrated car radio MODE = AFU, jump or check SA = 2 address BUFFER MSA byte 2 byte 3 byte 4 byte 5 P byte 0 previous current byte 1 previous current byte 2 previous byte 3 previous byte 4 previous byte 5 previous current new current new current new new current state machine start swap CONTROL byte 0 current previous byte 1 current previous byte 2 current new byte 3 current new byte 4 current new byte 5 current new 001aab524 Fig
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TEF6901A NXP Semiconductors Integrated car radio MODE = preset or search SA = 3 address BUFFER MSA byte 3 byte 4 byte 5 P byte 0 previous current current byte 1 previous current current byte 2 previous current current byte 3 previous current byte 4 previous current byte 5 previous current new preload current new current new current state machine start swap CONTROL byte 0 current current byte 1 current current byte 2 current current byte 3 current new byte 4
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TEF6901A NXP Semiconductors Integrated car radio MODE = load SA = 3 address BUFFER MSA byte 3 byte 4 byte 5 P byte 0 previous current current byte 1 previous current current byte 2 previous current current byte 3 previous current byte 4 previous current byte 5 previous current current new current new new preload CONTROL current swap byte 0 current current byte 1 current current byte 2 current current byte 3 current new byte 4 current new byte 5 current
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TEF6901A NXP Semiconductors Integrated car radio Table 25.
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TEF6901A NXP Semiconductors Integrated car radio I2C-bus P 1 ms time PLL f1 tuning 60 ms 1 ms f2 register SWAP IF counter reset quality detector reset tuning mute WS processing TAS read FAST '10' '01' '00' '11' '11' '00' 001aab527 Fig 13. Preset mode I2C-bus P PLL time tuning f1 1 ms 60 ms f2 register SWAP IF counter reset quality detector reset tuning mute WS processing FAST HOLD TAS read '11' FAST '10' '11' '11' '00' 001aab528 Fig 14.
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TEF6901A NXP Semiconductors Integrated car radio I2C-bus P time 1 ms PLL tuning f1 f2 register SWAP IF counter reset quality detector reset tuning mute WS processing TAS read FAST '10' '01' '00' '11' '11' 001aab529 Fig 15. Search mode I2C-bus P PLL time tuning f1 f2 register SWAP IF counter reset quality detector reset tuning mute WS processing FAST HOLD TAS read '11' FAST '10' '11' '11' 001aab530 Fig 16.
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TEF6901A NXP Semiconductors Integrated car radio I2C-bus P 0.5 ms 1 ms time PLL tuning f1 PLL 2 ms f2 f2 1 ms f1 register SWAP IF counter reset quality detector reset counter and detector result HOLD until I2C-bus read IF counter hold quality detector hold tuning mute HOLD WS processing TAS read '11' '10' '01' '00' '10' '00' '00' 001aab531 Fig 17. AF update mode I2C-bus P 0.
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TEF6901A NXP Semiconductors Integrated car radio I2C-bus P 0.5 ms 1 ms time 1 ms PLL tuning f1 f2 register SWAP IF counter reset quality detector reset tuning mute WS processing TAS read HOLD '10' '01' '00' '11' '00' '00' 001aab533 Fig 19. Jump mode I2C-bus P PLL time tuning f1 0.5 ms 1 ms f2 register SWAP IF counter reset quality detector reset tuning mute WS processing TAS read HOLD FAST '11' HOLD '10' '11' '00' '00' 001aab534 Fig 20.
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TEF6901A NXP Semiconductors Integrated car radio I2C-bus P 1 ms time tuning PLL f1 f2 register SWAP IF counter reset quality detector reset tuning mute WS processing TAS read HOLD '10' '01' '00' '11' '11' 001aab535 Fig 21. Check mode I2C-bus P PLL time tuning f1 f2 register SWAP IF counter reset quality detector reset tuning mute WS processing HOLD FAST HOLD TAS read '11' '10' '11' '11' 001aab536 Fig 22.
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TEF6901A NXP Semiconductors Integrated car radio P I2C-bus 1 ms time tuning mute WS processing HOLD FAST TAS read '11' '00' '00' 001aab537 Fig 23. End mode 8.2.2 Write mode: data byte BANDWIDTH Table 26. BANDWIDTH - format of data byte 00h with default setting (buffered) 7 6 5 4 3 2 1 0 DYN BW4 BW3 BW2 BW1 BW0 TE1 TE0 1 1 1 1 1 1 1 0 Table 27.
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TEF6901A NXP Semiconductors Integrated car radio Table 28.
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TEF6901A NXP Semiconductors Integrated car radio 8.2.3 Write mode: data bytes PLLM and PLLL Table 29. PLLM - format of data byte 01h with default setting (buffered) 7 6 5 4 3 2 1 0 RFGAIN PLL14 PLL13 PLL12 PLL11 PLL10 PLL9 PLL8 0 0 0 0 1 0 0 0 Table 30. PLLL - format of data byte 02h with default setting (buffered) 7 6 5 4 3 2 1 0 PLL7 PLL6 PLL5 PLL4 PLL3 PLL2 PLL1 PLL0 0 1 1 1 1 1 1 0 Table 31.
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TEF6901A NXP Semiconductors Integrated car radio 8.2.5 Write mode: data byte AGC Table 34. AGC - format of data byte 04h with default setting (buffered) 7 6 5 4 3 2 1 0 AGCSW IFGAIN 0 0 AGC1 AGC0 KAGC LODX 0 0 0 0 0 0 Table 35.
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TEF6901A NXP Semiconductors Integrated car radio 8.2.6 Write mode: data byte BAND Table 36. BAND - format of data byte 05h with default setting (buffered) 7 6 5 4 3 2 1 0 BAND2 BAND1 BAND0 FREF2 FREF1 FREF0 LOINJ 0 0 0 1 0 0 0 0 Table 37.
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TEF6901A NXP Semiconductors Integrated car radio Table 40. Charge pump source[1] FREF2 FREF1 FREF0 LOINJ Charge pump fref current 0 0 0 X CP1 100 kHz 0 0 1 X CP2 50 kHz 0 1 0 X CP3 25 kHz 0 1 1 1 CP3 20 kHz 0 1 1 0 CP4 20 kHz 1 0 0 X CP5 10 kHz 1 0 1 X reserved 1 1 0 X reserved 1 1 1 X reserved [1] X = don’t care. 8.2.7 Tuning overview High injection LO (Europe FM, US FM and AM): ( f RF + 10.
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TEF6901A NXP Semiconductors Integrated car radio 8.2.8 Write mode: data byte LEVELALGN Table 42. LEVELALGN - format of data byte 06h with default setting 7 6 5 4 3 2 1 0 LST4 LST3 LST2 LST1 LST0 LSL2 LSL1 LSL0 1 0 0 0 0 1 0 0 Table 43.
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TEF6901A NXP Semiconductors Integrated car radio Table 47. IFCAP - data byte 08h bit description Bit Symbol Description 7 IFCAPA FM IF filter capacitor align 0 = standard operation 1 = align mode and initialization mode (auto correct disabled) 6 to 4 - reserved; 0 = normal operation 3 to 0 IFCAP[3:0] IF filter capacitor. Setting of FM IF filter capacitor value by means of bit IFCAPG of read data byte 5, ID; see Table 19 (For initialization set IFCAPA = 1.
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TEF6901A NXP Semiconductors Integrated car radio 9. Set bits IFCFA and IFNBW to logic 0 to return to normal operation The bits IFCFA and IFNBW are intended for factory alignment use only. Normal radio operation requires a setting of bits IFCFA and IFNBW to logic 0. 8.2.11 Write mode: data byte ACD Table 48. 7 ACD - format of data byte 09h with default setting 6 5 4 3 2 1 ACDLEV ACDLAP1 ACDLAP0 ACDBAL1 ACDBAL0 ACDWAM1 ACDWAM0 0 1 0 0 1 0 1 0 HCSFH 0 Table 49.
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TEF6901A NXP Semiconductors Integrated car radio Table 51. SENSE - data byte 0Ah bit description Bit Symbol Description 7 to 4 CSA[3:0] alignment of FM stereo channel separation 3 and 2 USS[1:0] USN sensitivity; USN weak signal control equivalent level voltage/frequency deviation for weak signal processing; see Figure 24 00 = −0.06 V/kHz 01 = −0.08 V/kHz 10 = −0.12 V/kHz 11 = −0.
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TEF6901A NXP Semiconductors Integrated car radio 8.2.13 Write mode: data byte TIMING Table 52. TIMING - format of data byte 0Bh with default setting 7 6 5 4 3 2 1 0 STC1 STC0 HTC2 HTC1 HTC0 MTC2 MTC1 MTC0 1 0 1 0 0 1 1 0 Table 53.
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TEF6901A NXP Semiconductors Integrated car radio Table 56. Soft mute weak signal processing control speed setting[1] MTC2 MTC1 MTC0 tattack[2] trecovery[3] 0 0 0 0.01 s 0.01 s 0 0 1 0.01 s 0.03 s 0 1 0 0.03 s 0.1 s 0 1 1 0.1 s 0.1 s 1 0 0 0.1 s 0.2 s 1 0 1 0.2 s 0.2 s 1 1 0 0.4 s 0.4 s 1 1 1 0.4 s 0.
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TEF6901A NXP Semiconductors Integrated car radio Table 59. Start of stereo noise control weak signal processing SST3 SST2 SST1 SST0 Stereo noise control start (Veq.LEVEL) 0 0 0 0 1.88 V 0 0 0 1 1.94 V 0 0 1 0 2.00 V 0 0 1 1 2.06 V 0 1 0 0 2.13 V 0 1 0 1 2.19 V 0 1 1 0 2.25 V 0 1 1 1 2.31 V 1 0 0 0 2.38 V 1 0 0 1 2.44 V 1 0 1 0 2.5 V 1 0 1 1 2.56 V 1 1 0 0 2.63 V 1 1 0 1 2.69 V 1 1 1 0 2.75 V 1 1 1 1 2.81 V Table 60.
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TEF6901A NXP Semiconductors Integrated car radio 001aab493 40 001aab539 40 αcs (dB) αcs (dB) 30 30 20 20 SST[3:0] SSL[1:0] 10 10 0000 0111 1000 1111 00 0 0.5 1 1.5 2 0 0.5 2.5 3 Veq. LEVEL (V) SSL = 63 dB/V. 1 1.5 01 10 11 2 2.5 3 Veq. LEVEL (V) SST = 2.5 V. a. Start. b. Slope. Fig 25. SNC start and slope settings versus equivalent level voltage; SNC detector (level, USN and WAM), USN detector and WAM detector 8.2.15 Write mode: data byte HIGHCUT Table 61.
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TEF6901A NXP Semiconductors Integrated car radio Table 63. Start of high cut control weak signal processing HST2 HST1 HST0 High cut control start (Veq.LEVEL) 0 0 0 1.5 V 0 0 1 1.75 V 0 1 0 2.0 V 0 1 1 2.25 V 1 0 0 2.5 V 1 0 1 3.0 V 1 1 0 3.5 V 1 1 1 4.0 V Table 64.
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TEF6901A NXP Semiconductors Integrated car radio 001aab597 0 α10 kHz (dB) 3 6 full bandwidth 0 HST[2:0] α10 kHz (dB) wide bandwidth 3 000 001 010 011 10 B (kHz) 7 (1) 6 5 (2) 9 100 101 110 9 111 (3) 3 HSL[1:0] 00 01 10 11 12 12 (4) 15 0.5 1.5 2.5 2 15 0.5 3.5 1.5 Veq.LEVEL (V) HCF = 111, HCSF = 0, HCSFH = 0, HSL = 10. Veq.LEVEL (V) 2.5 001aad655 HST = 100. (1) HCSFH = 1; HCSF = 1; Bmin = 5.6 kHz. (2) HCSFH = 1; HCSF = 0; Bmin = 3.9 kHz.
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TEF6901A NXP Semiconductors Integrated car radio 8.2.16 Write mode: data byte SOFTMUTE Table 65. SOFTMUTE - format of data byte 0Eh with default setting 7 6 5 4 3 2 1 0 MST2 MST1 MST0 MSL1 MSL0 UMD1 UMD0 MSLE 0 1 1 0 1 0 1 0 Table 66.
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TEF6901A NXP Semiconductors Integrated car radio Table 68. Start of soft mute control weak signal processing; AM mode[1] MST2 MST1 MST0 Soft mute control start (Veq.LEVEL) 0 0 0 1.5 V 0 0 1 1.75 V 0 1 0 2.0 V 0 1 1 1.25 V 1 0 0 1.38 V 1 0 1 1.62 V 1 1 0 1.88 V 1 1 1 2.12 V [1] When for an external audio source dynamic compression is enabled (COMP = 1) the MST setting controls the compression range. For default full compression MST = 7 is used; see Table 81.
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TEF6901A NXP Semiconductors Integrated car radio 001aad656 0 αmute (dB) (0) αmute (dB) MST[2:0] 12 (1) 6 101 110 000 111 001 010 011 100 24 (2) (3) 12 (0E) (1E) 36 48 0.5 001aad658 0 18 1.0 MSL[1:0] = 11. 1.5 2.0 2.5 Veq.LEVEL (V) 24 0.5 0.75 1.0 1.25 1.5 Veq.LEVEL (V) MST[2:0] = 000. (0) MSLE = 0; MSL[1:0] = 00. (1) MSLE = 0; MSL[1:0] = 01. (2) MSLE = 0; MSL[1:0] = 10. (3) MSLE = 0; MSL[1:0] = 11. (0E) MSLE = 1; MSL[1:0] = 00. (1E) MSLE = 1; MSL[1:0] = 01. a. Start. b. Slope.
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TEF6901A NXP Semiconductors Integrated car radio 001aad657 0 αmute (dB) 001aad659 0 αmute (dB) MST[2:0] 12 (0) 6 (0E) (1) 011 100 000 101 001 110 010 111 24 36 12 (1E) (2) 18 (2E) (3) 48 0.5 1.0 1.5 24 0.5 2.0 2.5 Veq.LEVEL (V) MSL[1:0] = 11. (3E) 0.75 1.0 1.25 1.5 Veq.LEVEL (V) MST[2:0] = 011. (0) MSL[1:0] = 00; MSLE = 0. (0E) MSL[1:0] = 00; MSLE = 1. (1) MSL[1:0] = 01; MSLE = 0. (1E) MSL[1:0] = 01; MSLE = 1. (2) MSL[1:0] = 10; MSLE = 0. (2E) MSL[1:0] = 10; MSLE = 1.
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TEF6901A NXP Semiconductors Integrated car radio 8.2.17 Write mode: data byte RADIO Table 71. RADIO - format of data byte 0Fh with default setting 7 6 5 4 3 2 1 0 0 MONO DEMP RDCL NBS1 NBS0 NBL1 NBL0 0 0 1 1 0 1 0 Table 72.
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TEF6901A NXP Semiconductors Integrated car radio 001aab545 8 gain (dB) 0 DEMP −8 1 −16 0 −24 10−2 10−1 1 102 10 f (kHz) Fig 31. De-emphasis setting characteristics RDDA output RDCL output 4 µs > 400 µs bit slip (as may occur at poor reception) 4 µs > 400 µs 001aab546 This mode is compatible with e.g. SAA6579, SAA6581, SAA770xH and TEF6890H. Fig 32. RDS demodulator direct output mode (RDCL = 0); RDCL clock is output TEF6901A_3 Product data sheet © NXP B.V. 2008. All rights reserved.
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TEF6901A NXP Semiconductors Integrated car radio RDDA output data available D15 D14 D13 D1 D0 RDCL input 1 2 3 15 001aab547 16 a. The controlling microprocessor generates 16 clock pulses for output of 16 bits of buffered RDS data. This mode use is compatible with e.g. SAA770xH and TEF6890H. RDDA output data available D15 D1 D0 Q2 Q1 Q0 RDCL input 1 15 16 17 18 19 20 001aab548 b.
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TEF6901A NXP Semiconductors Integrated car radio Table 75.
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TEF6901A NXP Semiconductors Integrated car radio Table 77.
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TEF6901A NXP Semiconductors Integrated car radio Table 80. Dynamic compression timing; MTC[2:0] of data byte 0Bh; TIMING[1] MTC2 MTC1 MTC0 tattack trecovery 0 0 0 0.02 s 0.03 s 0 0 1 0.02 s 0.06 s 0 1 0 0.02 s 0.2 s 0 1 1 0.02 s 5s 1 0 0 0.02 s 0.6 s 1 0 1 0.02 s 10 s 1 1 0 0.02 s 1s 1 1 1 0.02 s 2s [1] Setting MTC is also in use for setting the timing of weak signal soft mute control during radio operation. Table 81.
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TEF6901A NXP Semiconductors Integrated car radio ∆ volume (dB) 0 (6, 1) (4, 1) (7, 0) (7, 1) (7, 2) (7, 3) −10 −20 −60 (5, 1) −50 −40 −30 −20 −10 (3, 0) (3, 1) (3, 2) (3, 3) 0 6 line input (dBV) 001aac443 1 V = 0 dBV, (MST, MSL) control. Fig 34.
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TEF6901A NXP Semiconductors Integrated car radio 001aab549 0 line output (dBV) −20 −40 −60 COMP = 1; VOL = −5 dB 15 dB −80 −60 COMP = 0; VOL = −20 dB −40 −20 0 +6 20 line input (dBV) 1 V = 0 dBV. Dynamic compression is realized by attenuation of the volume setting. To match the audio amplitudes with and without compression a higher volume (VOL) setting should be selected when compression is activated.
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TEF6901A NXP Semiconductors Integrated car radio Table 83.
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TEF6901A NXP Semiconductors Integrated car radio Table 83.
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TEF6901A NXP Semiconductors Integrated car radio Table 83.
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TEF6901A NXP Semiconductors Integrated car radio 8.2.20 Write mode: data byte TREBLE Table 84. TREBLE - format of data byte 12h with default setting 7 6 5 4 3 2 1 0 0 TRE2 TRE1 TRE0 TREM TRF1 TRF0 0 0 0 0 1 1 0 Table 85.
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TEF6901A NXP Semiconductors Integrated car radio 001aab550 16 gain (dB) 8 0 −8 −16 10−2 10−1 1 10 faudio (kHz) Fig 37. Treble amplitude control characteristics; treble frequency (TRF) = 10 kHz 8.2.21 Write mode: data byte BASS Table 87. BASS - format of data byte 13h with default setting 7 6 5 4 3 2 1 0 BAS3 BAS2 BAS1 BAS0 BASM BAF1 BAF0 0 0 0 0 0 1 1 0 Table 88.
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TEF6901A NXP Semiconductors Integrated car radio Table 89.
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TEF6901A NXP Semiconductors Integrated car radio 8.2.22 Write mode: data byte FADER Table 90. FADER - format of data byte 14h with default setting 7 6 5 4 3 2 1 0 FADM1 FADM0 FAD5 FAD4 FAD3 FAD2 FAD1 FAD0 0 0 0 0 0 0 0 0 Table 91.
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TEF6901A NXP Semiconductors Integrated car radio 8.2.24 Write mode: data byte BALANCE Table 94. BALANCE - format of data byte 16h with default setting 7 6 5 4 3 2 1 0 BALM BAL6 BAL5 BAL4 BAL3 BAL2 BAL1 BAL0 1 0 0 0 0 0 0 0 Table 95. BALANCE - data byte 16h bit description Bit Symbol Description 7 BALM balance control mode; sets the balance mode to left or right attenuation 0 = left channel is attenuated 1 = right channel is attenuated 6 to 0 Table 96.
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TEF6901A NXP Semiconductors Integrated car radio Table 98. LOUDNESS - data byte 17h bit description …continued Bit Symbol Description 3 LDHB loudness high boost; see Figure 39 0 = loudness control is limited to bass gain 1 = loudness controls bass gain and treble gain 2 to 0 [1] LDS[2:0] loudness start setting; loudness start defines the volume setting below which loudness control is activated; see Table 100 and Figure 39 The VU-meter mode can be used with external sources only.
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TEF6901A NXP Semiconductors Integrated car radio 001aab599 −12 gain (dB) VOL = −20 −22 −24 −26 −28 −30 −32 −34 −36 −38 −40 −20 −28 −36 −44 2 × 10−2 10−1 1 f audio (kHz) 10 20 a. LDON = 1, LDHB = 0. 001aab553 −12 gain (dB) VOL = −20 −22 −24 −26/−28 −30 −32 −34/−36 −38 −40 −20 −28 −36 −44 2 × 10−2 10−1 10 1 20 f audio (kHz) b. LDON = 1, LDHB = 1. Fig 39.
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TEF6901A NXP Semiconductors Integrated car radio 8.2.26 Write mode: data byte POWER Table 101. POWER - format of data byte 18h with default setting 7 6 5 4 3 2 1 0 0 STBT STBR 0 0 ASI AST1 AST0 0 0 1 1 0 Table 102.
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TEF6901A NXP Semiconductors Integrated car radio 8.2.28 Write mode: data byte TEST Table 105. TEST - format of data byte 1Fh 7 6 5 4 3 2 1 0 RBWR 0 TEST5 TEST4 TEST3 TEST2 TEST1 TEST0 0 0 0 0 0 0 0 Table 106.
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TEF6901A NXP Semiconductors Integrated car radio 10. Thermal characteristics Table 108. Thermal characteristics Symbol Parameter Rth(j-a) Rth(j-c) Conditions Typ Unit thermal resistance from junction to ambient in free air 55 K/W thermal resistance from junction to case 18 K/W 11. Static characteristics Table 109. Static characteristics VCC = 8.5 V; Tamb = 25 °C; unless otherwise specified.
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TEF6901A NXP Semiconductors Integrated car radio Table 109. Static characteristics …continued VCC = 8.5 V; Tamb = 25 °C; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit ICCPLL supply current for tuning PLL Tamb = −40 °C - 3.9 - mA Tamb = 25 °C 2.9 3.
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TEF6901A NXP Semiconductors Integrated car radio 12. Dynamic characteristics 12.1 Dynamic characteristics of the tuner Table 110. Dynamic characteristics of the tuner VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit - 20.
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TEF6901A NXP Semiconductors Integrated car radio Table 110. Dynamic characteristics of the tuner …continued VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit Isink(CP5) charge pump CP5 sink current VCPOUT = 0.7 V to VCCPLL − 0.7 V; fref = 10 kHz 1630 2 200 2970 µA Isource(CP5) charge pump CP5 source current VCPOUT = 0.7 V to VCCPLL − 0.
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TEF6901A NXP Semiconductors Integrated car radio Table 110. Dynamic characteristics of the tuner …continued VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit Vo output voltage VVTUNE = 0.5 V; DAA[6:0] = 000 0000 - - 0.5 V VVTUNE = 4.25 V; DAA[6:0] = 111 1111 8 - - V DAA[6:0] = 000 0000 - - 0.5 V DAA[6:0] = 100 0000 3.8 4.23 4.65 V DAA[6:0] = 101 0101 2.45 2.74 3.
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TEF6901A NXP Semiconductors Integrated car radio Table 110. Dynamic characteristics of the tuner …continued VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; unless otherwise specified. Symbol Parameter CIAMAGC Conditions Min Typ Max Unit source current generator output capacitance - 3 - pF VVDCPIN bias voltage for AM PIN diode 4.5 5 5.
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TEF6901A NXP Semiconductors Integrated car radio Table 110. Dynamic characteristics of the tuner …continued VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; unless otherwise specified. Symbol Parameter Conditions [6] Min Typ Max Unit - 3 - pF Co output capacitance Vo(max)(p-p) maximum output voltage VCCAMMIX2 = 8.5 V (peak-to-peak value) - 12 - V gm(conv) conversion transconductance Io / Vi 1.2 1.6 2.
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TEF6901A NXP Semiconductors Integrated car radio Table 110. Dynamic characteristics of the tuner …continued VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit RR ripple rejection fripple = 100 Hz; VCC(ripple) = 50 mV (RMS); VAMIF2IN = 10 mV 20 26 - dB Vi(AMIF2IN) = 95 µV; level slope aligned to (800 ± 50) mV/dec; level start aligned to VLEVEL = (1.24 ± 0.
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TEF6901A NXP Semiconductors Integrated car radio Table 110. Dynamic characteristics of the tuner …continued VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; unless otherwise specified.
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TEF6901A NXP Semiconductors Integrated car radio Table 110. Dynamic characteristics of the tuner …continued VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit IRR image rejection ratio fRFwanted = 87.5 MHz; fRFimage = 108.9 MHz 25 35 - dB 4.5 5.
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TEF6901A NXP Semiconductors Integrated car radio Table 110. Dynamic characteristics of the tuner …continued VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; unless otherwise specified. Symbol Vo Parameter Conditions Min Typ Max Unit output voltage Vi = 20 µV to 1 V ∆f = 1.2 kHz; fmod = 57 kHz - 7 - mV ∆f = 22.
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TEF6901A NXP Semiconductors Integrated car radio JFET LNA RFIN CASCODE RF FILTER pin diode TRFAGC IAMAGC 9 VAMCASFB 18 15 VAMCAS AMMIX1IN MIX1OUT1, MIX1OUT2 IF1IN AMMIX2OUT1, AMMIX2OUT2 AMIF2IN 19 21 23, 24 27 28, 29 32 detector A X AM MIXER1 X AM MIXER2 AGC THRESHOLD TEF6901AH AGC threshold AGC[1:0] AGC detector B 008aaa004 reduce cascode AGC control range KAGC enable 1 mA pin diode current (FM mode) AGCSW Fig 40. AM AGC circuit 12.
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TEF6901A NXP Semiconductors Integrated car radio Table 111. Dynamic characteristics of the sound processor …continued VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB; bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain (byte OUTPUT; bit OUTA = 0); RL = 10 kΩ; CL = 1 nF; unless otherwise specified.
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TEF6901A NXP Semiconductors Integrated car radio Table 111. Dynamic characteristics of the sound processor …continued VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB; bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain (byte OUTPUT; bit OUTA = 0); RL = 10 kΩ; CL = 1 nF; unless otherwise specified.
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TEF6901A NXP Semiconductors Integrated car radio Table 111. Dynamic characteristics of the sound processor …continued VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB; bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain (byte OUTPUT; bit OUTA = 0); RL = 10 kΩ; CL = 1 nF; unless otherwise specified.
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TEF6901A NXP Semiconductors Integrated car radio Table 111. Dynamic characteristics of the sound processor …continued VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB; bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain (byte OUTPUT; bit OUTA = 0); RL = 10 kΩ; CL = 1 nF; unless otherwise specified.
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TEF6901A NXP Semiconductors Integrated car radio Table 111. Dynamic characteristics of the sound processor …continued VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB; bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain (byte OUTPUT; bit OUTA = 0); RL = 10 kΩ; CL = 1 nF; unless otherwise specified.
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TEF6901A NXP Semiconductors Integrated car radio Table 111. Dynamic characteristics of the sound processor …continued VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB; bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain (byte OUTPUT; bit OUTA = 0); RL = 10 kΩ; CL = 1 nF; unless otherwise specified.
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TEF6901A NXP Semiconductors Integrated car radio Table 111. Dynamic characteristics of the sound processor …continued VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB; bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain (byte OUTPUT; bit OUTA = 0); RL = 10 kΩ; CL = 1 nF; unless otherwise specified.
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TEF6901A NXP Semiconductors Integrated car radio Table 111. Dynamic characteristics of the sound processor …continued VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB; bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain (byte OUTPUT; bit OUTA = 0); RL = 10 kΩ; CL = 1 nF; unless otherwise specified.
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TEF6901A NXP Semiconductors Integrated car radio Table 111. Dynamic characteristics of the sound processor …continued VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB; bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain (byte OUTPUT; bit OUTA = 0); RL = 10 kΩ; CL = 1 nF; unless otherwise specified.
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TEF6901A NXP Semiconductors Integrated car radio Table 111. Dynamic characteristics of the sound processor …continued VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB; bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain (byte OUTPUT; bit OUTA = 0); RL = 10 kΩ; CL = 1 nF; unless otherwise specified.
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TEF6901A NXP Semiconductors Integrated car radio Table 111. Dynamic characteristics of the sound processor …continued VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB; bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain (byte OUTPUT; bit OUTA = 0); RL = 10 kΩ; CL = 1 nF; unless otherwise specified.
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TEF6901A NXP Semiconductors Integrated car radio Table 112. I2C-bus parameters …continued Symbol Parameter Conditions Min Typ Max Unit tDOR(HL) data output reaction time (acknowledge and read data) HIGH-to-LOW VDD = 5 V; I = 3 mA; Cb = 400 pF; see Figure 41 - 700 863 ns VDD = 3.3 V; Rp = 1.8 kΩ; Cb = 400 pF; see Figure 41 - 570 668 ns VDD = 2.5 V; Rp = 35 kΩ; Cb = 10 pF; see Figure 41 - 520 593 ns - 450 488 ns 20 + 0.1Cb 10 × VDD - ns 20 + 0.
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TEF6901A NXP Semiconductors Integrated car radio 14. Overall system parameters Table 113. Overall system parameters Symbol Parameter Conditions Min Typ Max Unit - 102 - mA - 89 - mA LW 144 - 288 kHz MW 522 - 1710 kHz SW 2.3 - 26.1 MHz fRF = 990 kHz; m = 0.3; fmod = 1 kHz; BAF = 2.
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TEF6901A NXP Semiconductors Integrated car radio Table 114. List of components[1] Symbol Component Type 2.2 pF[2] Manufacturer - C1 capacitor for frequency pulling C2 capacitor for VCO tuning 270 pF - C3 decoupling capacitor for VCO tuning 1 nF - R1 resistor for supply V60 47 Ω; 0.2 W - L1 oscillator coil E543SNAS-02010 TOKO L2 FM RF selectivity coil C6342A-R11 SAGAMI L3 10.
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TEF6901A NXP Semiconductors Integrated car radio 16. Package outline QFP64: plastic quad flat package; 64 leads (lead length 1.6 mm); body 14 x 14 x 2.7 mm SOT393-1 c y X A 48 33 49 32 ZE e E HE A A2 (A 3) A1 θ wM pin 1 index Lp bp L 17 64 detail X 16 1 w M bp e v M A ZD D B HD v M B 0 5 10 mm scale DIMENSIONS (mm are the original dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (1) e mm 3 0.25 0.10 2.75 2.55 0.25 0.45 0.30 0.23 0.13 14.1 13.9 14.1 13.
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TEF6901A NXP Semiconductors Integrated car radio 17. Soldering This text provides a very brief insight into a complex technology. A more in-depth account of soldering ICs can be found in Application Note AN10365 “Surface mount reflow soldering description”. 17.1 Introduction to soldering Soldering is one of the most common methods through which packages are attached to Printed Circuit Boards (PCBs), to form electrical circuits.
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TEF6901A NXP Semiconductors Integrated car radio 17.
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TEF6901A NXP Semiconductors Integrated car radio maximum peak temperature = MSL limit, damage level temperature minimum peak temperature = minimum soldering temperature peak temperature time 001aac844 MSL: Moisture Sensitivity Level Fig 45. Temperature profiles for large and small components For further information on temperature profiles, refer to Application Note AN10365 “Surface mount reflow soldering description”. 18. Revision history Table 117.
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TEF6901A NXP Semiconductors Integrated car radio 19. Legal information 19.1 Data sheet status Document status[1][2] Product status[3] Definition Objective [short] data sheet Development This document contains data from the objective specification for product development. Preliminary [short] data sheet Qualification This document contains data from the preliminary specification. Product [short] data sheet Production This document contains the product specification.
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TEF6901A NXP Semiconductors Integrated car radio 21. Contents 1 2 3 4 5 6 6.1 6.2 7 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9 7.10 7.11 7.12 7.13 7.14 7.15 7.16 7.17 7.18 7.19 7.20 7.21 7.22 7.23 7.24 7.25 7.26 7.27 7.28 7.29 7.30 7.31 7.32 7.33 7.34 7.35 8 General description . . . . . . . . . . . . . . . . . . . . . . 1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Quick reference data . . . . . . . . . . . . . . . . . . . . . 2 Ordering information . . . . . . . . . . . . . . . .
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TEF6901A NXP Semiconductors Integrated car radio 13 14 15 16 17 17.1 17.2 17.3 17.4 18 19 19.1 19.2 19.3 19.4 20 21 I2C-bus characteristics . . . . . . . . . . . . . . . . . . 96 Overall system parameters . . . . . . . . . . . . . . . 98 Application information. . . . . . . . . . . . . . . . . . 99 Package outline . . . . . . . . . . . . . . . . . . . . . . . 101 Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 Introduction to soldering . . . . . . . . . . . . . . . .