Eclipse Ser ies RF Technology rfinfo@rftechnology.com.
Contents 1 2 3 Operating Instructions 5 1.1 Front Panel Controls and Indicators 5 1.1.1 1.1.2 1.1.3 1.1.4 1.1.5 5 5 6 6 6 PTT Line POWER LED TX LED ALARM LED Transmitter Internal J umper Options 6 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11 2.11 2.
7.1 Overall Descr iption 28 7.1.1 7.1.2 7.1.3 7.1.4 7.1.5 28 28 28 29 29 Channel Capacity CTCSS Channel Programming Channel Selection Microprocessor 7.2 Physical Configuration 29 7.3 Front Panel Controls, Indicators and Test Points 29 7.3.1 7.3.2 7.3.3 29 29 29 7.4 7.5 A A.1 A.2 A.3 Controls Indicators Test Points Electrical Specifications 29 7.4.1 7.4.2 7.4.3 7.4.4 7.4.5 7.4.6 7.4.7 7.4.8 7.4.9 7.4.10 7.4.11 7.4.12 7.4.13 7.4.14 7.4.15 7.4.16 7.4.17 7.4.18 7.4.19 7.4.20 7.4.21 7.4.22 7.
WARNING Changes or modifications not expressly approved by RF Technology could void your authority to operate this equipment. Specifications may vary from those given in this document in accordance with requirements of local authorities. RF Technology equipment is subject to continual improvement and RF Technology reserves the right to change performance and specification without further notice. 1 Oper ating Instr uctions 1.1 Fr ont Panel Contr ols and Indicator s 1.1.
4 flashes, pause Either PLL is near its operational limit 3 flashes, pause Unable to communicate with the External PA. 2 flashes, pause The current channel is not programmed or the channel frequency is out of range.
2.2 LINE Ter minations There are two main audio inputs, plus a direct audio (TONE) input. The direct audio input is a High Impedance Balanced DC input, but the two audio inputs are AC coupled (> 10Hz) inputs which can be High Impedance(HiZ), or 600 ohm inputs. Each input can be software selected to be HiZ, or 600 ohms. 2.3 Exciter Low Batter y Level This is factory set to 24.0V, and defines the level of the DC supply that will cause an Exciter dc supply low alarm. 2.
message is sent. If this timer value is negative, then CWID transmission is disabled. This feature is only available on models from Rev. 4. 2.11 CWID Per iod If CWID (Continuous Wave Identification) is enabled, then this value indicates the time in tenths of a second from one transmission to the next. If the value is zero, then the CWID message is transmitted only once. This feature is only available on models from Rev. 4. 2.
SPARE_SEL 5 Spare Select (for future use) Line1+ 8 Line1- 19 Transformer Isolated Balanced 0dBm Input Line2+ 10 Line2- 22 Transformer Isolated Balanced 0dBm Input Direct PTT input 11 Ground to key PTT T/R Relay output 23 Open collector, 250mA /12V Tone+ 9 >10kΩ, dc coupled Tone- 21 600Ω/HiZ Line 600Ω/HiZ Line driver Sub-Audible Tone Input Table 3: Pin connections and explanations for the main 25-pin, D connector. 3.
5 Cir cuit Descr iption The following descriptions should be read as an aid to understanding the block and schematic diagrams given in the appendix of this manual. There are 9 sheets in the schematic in all. 5.1 T50 Master Schematic (Sheet 1) Sheet 1, referred to as the “T50 Master Schematic”, is a top level sheet, showing five circuit blocks, and their interconnection with each other, as well as the interconnection with all connectors and external switches.
AN4 is multiplexed between the LINE control potentiometer and the Channel reference crystal’s temperature sense. Which analogue input drives this analogue input, is defined by the state of TEMP_LEVEL_IN which is a CPU output signal. AN3 and AN1 are inputs from the PLL circuits that sense the bias voltage on the VCO control varactor for each VCO. AN2 is used to sense the average peak voltage of the audio input. AN0 is used to sense the average peak voltage of the RF output. FRDY is an output from the flash.
CH_EN is a serial bus select. It is brought out to the rear panel and is used to interface to the channel encoder on the rear daughter-board. (See 5.1) Any GPS pulses are isolated from the on-board electronics by the opto-isolator U212. The output of that opto-isolator is then connected to the GPS timer input of the CPU.
MORSE is a CPU output that can be used to generate a CWID (Continuous Wave Identification) code. This is a 1028Hz tone which is keyed on and off in a Morse code as a staion identifier. (See 5.4) The RESET pin is both a low active input and a low active output to the CPU. If generated externally to the CPU, it forces the CPU into reset, and if the CPU executes a RESET instruction, this pin will be driven low by the CPU. Whenever there is insufficient volts (< 4.
Note that the Line inputs, and the TONE input, are protected by transils and fuses against accidental connection to damaging voltages. The fuses (F300, F301, and F302) are not user replaceable. They are surface mount devices and must be replaced by authorised service personnel. 5.4 Line Input Pr ocessing Section (Sheet 4) The two audio inputs are passed, after transformer coupling, to sheet 4. In Sheet 4, the two Line Inputs are input to a transconductance amplifier (U402A, and U402B).
isolation, and R446, and R448 set the level to be approximately 30% of maximum deviation. The output of U407B is passed (signal LINE_INP) to the Line Level Sense circuitry (sheet 3) so that the CPU can determine the input line level. U407B’s output is also passed to the limiter defined by D402, and D401. Resistors R442, and R444 are used to “soften” the clipping, i.e. to “round off” the edges as the voltage hits the clipping levels. This reduces the level of the lower order harmonics produced.
The digital POT performs two functions. It is used to help set the maximum CTCSS tone deviation. It does this in conjunction with U500, as it is also possible for the CTCSS tones that are launched by U500 to be adjusted using software. The second function of the digital POTs is enabled when U301D is enabled. The level of attenuation by the digital POT is adjusted as part of the calibration procedure to set the tone deviation caused when a signal is applied to the tone input.
The output of the Modulation VCO is connected back to the PLL for phase detection via signal path MOD_VCO_OUT. The phase detector output is also buffered and attenuated for the analogue input of the CPU. This is the function of U600, R622, and R625. In this way the CPU can monitor the VCO bias to ensure that it is within specification (>0.5V, and < 4.5V). The FoLD pin, of U602, can be used for many purposes.
The two unused, divide by two, stages of U606 are then used to convert the 400Hz FoLD pulse trains into 200Hz square waves for the Timer inputs of the CPU. 5.6.4 The DAC U601 is a quad DAC. It is programmed by the CPU via the serial bus (SCLK and MOSI). It is selected by the low active signal SIGGEN_ADSEL. Three of its outputs are used to adjust the reference oscillators. In the presence of an external reference oscillator, the software will automatically track the channel VCO to the external clock.
The VCO frequencies are controlled by the bias applied to D701 and D704 respectively, which is set by signals MOD_PLL_IN and CHAN_PLL_IN. These signals are the phase detector outputs from the Modulation PLL and the Channel VCO respectively (see Sheet 6). Diodes D700 and D703 are used to provide some AGC for the JFETs.
5.8 1W Br oadband HF/VHF Power Amplifier (Sheet 8) The RF output of Sheet 7 (VCO_OUT) becomes the primary input to this circuit (RF_IN). This RF input is first amplified to a level of about +2 to +4dBm by U800, then it is amplified by Q801 to about +20dBm (with full bias), and then it is amplified by Q804 and Q805 to +30dBm. The output stage gain is less above about 42MHz, so that the peak output power falls to about +26dBm at 50MHz.
6 FIELD ALIGNMENT PROCEDURE 6.1 Standar d Test Equipment Some, or all of the following equipment will be required: • AF signal generator, 75 - 3000Hz frequency range, with output level set to 387mV RMS and, if the microphone input is to be tested, 10mV rms output. • Power supply set to 28Vdc, with current >10A. • RF 50Ω load(s), 250W rated, return loss <-20dB, and total attenuation of 50dB • Reference Clock. At least +6dBm output.
b) c) d) e) f) 6.2.1 dev: Maximum deviations are set (automatically forces a “cal line” and a “cal tone”) line: Line1, Line 2, Dir Aud (Tone), and microphone inputs are tested and calibrated. pwr: The External PA attached to this unit is calibrated. ref: The reference oscillators are adjusted and calibrated tone: The maximum tone deviations are calibrated The “ Miscellaneous” Calibration Procedure T50> cal misc This procedure should not normally be invoked as part of any field maintenance.
To compensate for crystal ageing and other component parameters that drift over time, the following procedure should be performed approximately once per year. If your exciter is fitted with the external reference option (an extra BNC connector on the rear panel), the user can connect an external reference directly to the rear BNC connector.
If a message, similar to this is seen, it indicates a potential fault condition. If the final text indicates that the channel and mod reference errors are within specification (the last text output), then the unit is able to be used, but nonetheless, it is advisable that an email be sent to RF Technology indicating the problem.
? In response to the +, or – keys (or m, p, M, or P), the firmware adjusts the deviation digital POT. The user should do this until the deviation is about 200Hz below the value shown. The firmware will now repeat this for the following standard deviations, 5.0kHz, 4.5kHz, 4.0kHz, 3.5kHz, 3.0kHz, 2.5kHz, 2.0kHz, and 1.5kHz. 6.2.4 The “ Tone Deviation” Calibration Procedure T50> cal tone This procedure should not normally be invoked as part of any field maintenance.
This is the same mechanism that is used in 6.5 and 6.6. The user enters +, p, or P to increase the Line 1 gain, to increase the deviation, or, -, m, or M to decrease the gain. The user hits the Enter key when the desired deviation is set. Now attach the audio signal generator to Line 2 Enter + or - to increase or decrease the deviation, and < RET> when the deviation is 3kHz ? Again the user enters +, p, or P to increase the Line 2 gain, or, -, m, or M to decrease the gain.
This procedure is used to calibrate an External Power Amplifier. The existing PA's SERIAL NO is: 002356 Enter the new PA serial no: Simply hit the Enter key here if the Serial Number is correct. Take the lid off a PA, and set all three bias Pots (R238,R239, and R240) fully clockwise. Enter < RET> when done. Now we will set the Bias currents in the PA. Attach power to the PA. Each mV read across TP100(+ ve lead), and TP101(-ve lead), corresponds to 1mA of 1st stage Bias current.
the displayed reverse power equals 50W. Enter < RET> when this has been done. This then completes all the calibration procedures. 7 SPECIFICATIONS 7.1 Over all Descr iption The transmitter is a frequency synthesized, narrow band, HF/VHF, FM unit, used to drive an external 120 watt amplifier. All necessary control and 600 Ω line interface circuitry is included. 7.1.1 Channel Capacity Although most applications are single channel, the T50 can be programmed for up to 256 channels, numbered 0-255.
code containing the selected DCS code word will be generated continuously after the exciter is keyed up. 7.1.4 Channel Programming The channel information is stored in non-volatile memory and can be programmed via the front panel connector using a PC, and/or RF Technology software. 7.1.5 Channel Selection Channel selection is by eight channel select lines connected to the rear panel that mounts on the rear DB25 female connector. A BCD active high code applied to the lines selects the required channel.
7.4.2 Frequency Range and Channel Spacing The T50, as a single model, covers the full band, and all channel spacing. Frequency 25 kHz 20kHz 15kHz 12.5 kHz 10 kHz 7.5 kHz 6.25 kHz 25 - 50 MHz T50 T50 T50 T50 T50 7.4.3 T50 T50 Frequency Synthesizer Step Size The specified frequency can be any multiple of 1250Hz. 7.4.4 Frequency Stability ±5 ppm over 0 to +60 C, standard ±12 ppm over -30 to +60 C. 7.4.5 Number of Channels 256, numbered 00 - 255 7.4.
7.4.14 Test Microphone Input 200Ω dynamic, with PTT 7.4.15 External Tone Input Compatible with all RF Technology receivers. Each unit is factory configured to give 20% of maximum deviation for an external tone input of 129mV. 7.4.16 T/R Relay Driver An open drain MOSFET output is provided to operate an antenna change over relay or solid state switch. The transistor can sink up to 250mA. A 1W flywheel diode connects to the 12V rail to prevent damage to the FET from inductive kick from a relay coil.
transmissions. The Hang Time can be individually set on each channel for 0 - 999 seconds. Time Out Timer - A time-out or transmission time limit can be programmed to automatically turn the transmitter off. The time limit can be set from 0-10million seconds. The timer is automatically reset when the PTT input is released. Zero seconds disables the timer, and allows continuous transmission. 7.4.
A Engineering Diagrams There is only one printed circuit board covering all models of the T50. There is only one option for this product, which is the external reference clock option. That option adds a rear connector, and a small length of coaxial cable and a fixed coaxial cable mount to the parts list. Unlike other products in the Eclipse range, CTCSS is no longer an option. All units have the ability to transmit CTCSS tones, and from Rev. 4, DCS codes. A.
B T50 Parts List (Rev 4) Ref Descr iption Par t # C100 C101 C102 C103 C201 C202 C203 C204 C205 C206 C207 C208 C209 C210 C211 C214 C215 C216 C217 C219 C220 C221 C222 C224 C225 C226 C227 C300 C301 C302 C304 C305 C306 C307 C308 C309 C310 C311 C312 C400 C401 C402 C403 C404 C405 C406 C407 C408 C409 C410 C411 C412 C413 C414 C415 C416 C417 C418 C419 C420 C421 Four EMI filters in a 1206 package, 100pF Four EMI filters in a 1206 package, 100pF Four EMI filters in a 1206 package, 100pF Four EMI filters in a 1206
C422 C423 C425 C426 C427 C428 C500 C501 C502 C503 C506 C507 C508 C509 C510 C511 C512 C513 C514 C515 C516 C600 C601 C602 C603 C604 C605 C606 C607 C608 C609 C610 C611 C612 C613 C614 C615 C616 C617 C619 C620 C621 C622 C623 C624 C625 C626 C627 C628 C629 C630 C631 C634 C635 C636 C637 C638 C639 C640 C641 C642 C643 C644 C645 C646 C649 C650 100nF, 25V, Y5V, decoupler, 0603 Ceramic Capacitor, 16V, 1uF, X7R, 1206 Ceramic Capacitor, 16V, 1uF, X7R, 1206 100nF, 25V, Y5V, decoupler, 0603 100nF, 25V, Y5V, decoupler, 0603
C651 C652 C700 C701 C702 C703 C704 C705 C706 C707 C708 C709 C710 C711 C712 C713 C714 C715 C716 C718 C719 C720 C721 C722 C723 C724 C725 C726 C727 C728 C729 C730 C731 C732 C733 C734 C735 C736 C737 C738 C739 C740 C742 C743 C744 C745 C746 C747 C748 C749 C750 C751 C752 C753 C754 C755 C756 C757 C758 C759 C760 C761 C762 C763 C764 C765 C766 100nF, 25V, Y5V, decoupler, 0603 10nF Cer. Cap, X7R, 0603, 10% 100nF, 25V, Y5V, decoupler, 0603 10nF Cer. Cap, X7R, 0603, 10% 10nF Cer.
C767 C768 C769 C770 C771 C772 C773 C775 C776 C801 C802 C803 C804 C805 C806 C807 C810 C811 C820 C821 C822 C823 C824 C825 C826 C827 C828 C829 C830 C901 C902 C903 C904 C915 C920 C923 C924 C925 C926 C927 C928 C929 C930 C931 C932 C933 C934 C935 C936 C937 C938 C939 C940 C941 C942 C943 C944 C945 D102 D103 D104 D200 D202 D203 D300 D301 D302 12pF Cer. Cap, NPO, 0603, 5% 15pF Cer. Cap, NPO, 0603, 5% 68pF Cer.
D303 D304 D305 D306 D307 D400 D401 D402 D403 D500 D501 D502 D503 D600 D601 D700 D701 D703 D704 D800 D906 D907 D908 D909 D910 D911 F300 F301 F302 J1 JP12 JP2 JP3 JP4 L100 L101 L102 L104 L200 L202 L203 L204 L205 L500 L600 L700 L701 L702 L703 L704 L705 L706 L708 L709 L710 L711 L712 L713 L714 L715 L716 L717 L719 L720 L721 L722 L723 Dual Series Diode Dual Series Diode Dual Series Diode Gen. Purpose 1N4004 diode in SMD pkg Dual Schottky, Comm.
L724 L725 L726 L800 L801 L803 L804 L807 L808 L809 L810 L811 L812 L813 L901 L902 L903 L904 L905 L906 L907 L908 L909 LC700 LC701 LC702 M1 M1C M2 MX700 P1 P3 Q200 Q201 Q202 Q203 Q204 Q205 Q206 Q300 Q301 Q302 Q400 Q401 Q500 Q501 Q600 Q700 Q701 Q702 Q703 Q704 Q705 Q706 Q707 Q801 Q804 Q805 R100 R101 R102 R103 R104 R105 R201 R202 R203 330nH Inductor 3u3H Choke 33nH Inductor Ferrite, 1206 pkg, 600 ohm, 200mA Ferrite, 1206 pkg, 600 ohm, 200mA Inductor - Air Core, 538nH Inductor - Air Core, 538nH 220uH Choke 3u3H Ch
R204 R205 R206 R207 R208 R209 R210 R211 R212 R213 R214 R215 R216 R217 R218 R219 R220 R221 R222 R223 R224 R225 R226 R227 R228 R229 R230 R231 R232 R233 R234 R235 R236 R237 R238 R239 R240 R241 R242 R243 R244 R245 R300 R301 R302 R303 R304 R305 R306 R307 R308 R309 R310 R311 R312 R313 R314 R315 R316 R317 R318 R319 R320 R321 R322 R323 R324 0805, 1%, 10K resistor 0805, 1%, 2K2 resistor 0805, 1%, 2K2 resistor 0805, 1%, 68K resistor 0805, 1%, 22K resistor 0805, 1%, 330R resistor 0805, 1%, 10K resistor 0805, 1%, 220R
R325 R326 R327 R328 R329 R330 R331 R332 R333 R335 R336 R337 R400 R401 R402 R403 R404 R405 R406 R407 R408 R409 R410 R411 R412 R413 R414 R415 R416 R417 R418 R419 R420 R421 R422 R423 R424 R425 R426 R427 R428 R429 R430 R433 R434 R435 R436 R437 R438 R439 R440 R442 R443 R444 R445 R446 R447 R448 R449 R450 R451 R453 R454 R455 R456 R457 R458 0805, 1%, 47K resistor 0805, 1%, 47K resistor 0805, 1%, 47K resistor 0805, 1%, 10K resistor 0805, 1%, 10K resistor 0805, 1%, 47K resistor 0805, 1%, 47K resistor 0805, 1%, 68K r
R459 R460 R461 R462 R463 R464 R465 R466 R467 R500 R501 R502 R503 R504 R505 R506 R507 R508 R509 R510 R511 R512 R513 R514 R515 R516 R517 R518 R519 R520 R521 R522 R523 R525 R526 R527 R528 R529 R530 R531 R532 R533 R534 R535 R536 R537 R602 R603 R604 R605 R606 R607 R608 R609 R610 R611 R612 R613 R614 R615 R616 R617 R618 R620 R622 R623 R624 0805, 1%, 4K7 resistor 0805, 1%, 4K7 resistor 0805, 1%, 56K resistor 0805, 1%, 22K resistor 0805, 1%, 56K resistor 0805, 1%, 270K resistor 0805, 1%, 22K resistor 0805, 1%, 2K2
R625 R626 R627 R628 R629 R630 R631 R632 R633 R634 R635 R636 R637 R638 R639 R640 R646 R647 R648 R649 R650 R700 R701 R702 R703 R704 R705 R706 R707 R708 R709 R710 R711 R712 R713 R714 R715 R716 R717 R718 R719 R720 R721 R722 R723 R724 R725 R726 R727 R729 R730 R731 R732 R733 R734 R735 R736 R737 R738 R739 R740 R741 R742 R743 R745 R801 R802 0805, 1%, 22K resistor 0805, 1%, 2K2 resistor 1218, 5%, 150R, 1W, SMD resistor 1218, 5%, 150R, 1W, SMD resistor 0805, 1%, 270K resistor 1206, 1%, 120R resistor 0805, 1%, 47R re
R803 R804 R805 R806 R808 R809 R810 R811 R812 R813 R814 R815 R816 R819 R823 R918 R919 R920 R921 R922 R923 R924 R925 R926 R927 R928 R929 R930 R931 R932 R933 R934 R935 R936 RL300 RV100 S200 SW1 T300 T301 U201 U202 U203 U204 U205 U207 U208 U212 U300 U301 U302 U303 U400 U401 U402 U403 U404 U405 U406 U407 U500 U502 U503 U600 U601 U602 U603 1218, 5%, 150R, 1W, SMD resistor 1206 10R resistor 1206 10R resistor 1218, 5%, 150R, 1W, SMD resistor 0805, 1%, 10R resistor 0805, 1%, 27R resistor 0805, 1%, 10R resistor 0805
U604 Dual PLL U605 Dual, Ripple Carry, 4 bit binary counter U606 Dual 4 bit, ripple carry, decade counters U607 Gen. Purp. R2R Op. Amp. U608 Gen. Purp. R2R Op. Amp. U700 MMIC Amplifier U701 MMIC Amplifier U702 MMIC Amplifier U703 MMIC Amplifier U704 Transconductance Amplifier U705 MMIC Amplifier U706 MMIC Amplifier U707 Gen. Purp. R2R Op. Amp. U800 MMIC Amplifier U906 Gen. Purp. R2R Op. Amp.
C T50 Parts List (Rev 3) The following table highlights those components in Rev. 3 exciters, that differ from the parts in Rev. 4. The values indicated are the values used in Rev.3 Ref Descr iption Par t # C212 100nF, 25V, Y5V, decoupler, 0603 46/63Y1/100N C420 NF C421 NF C502 100nF, 25V, Y5V, decoupler, 0603 46/63Y1/100N C512 NF C513 Ceramic Capacitor, 16V, 1uF, X7R, 1206 45/X7R1/1U16 C611 10nF Cer.
LC701 LC702 Q402 R313 R314 R315 R316 R332 R333 R337 R404 R446 R448 R451 R452 R464 R514 R515 R522 R534 R535 R536 R537 R600 R602 R603 R604 R605 R609 R610 R612 R617 R619 R620 R621 R626 R627 R628 R633 R634 R640 R701 R702 R703 R705 R711 R712 R713 R714 R721 R725 R733 R736 R737 R738 R740 R741 R742 R745 R801 R803 R806 R807 R813 R814 R815 NF NF Gen.
D EIA CTCSS TONES Fr equency No Tone EIA Number 67.0 71.9 74.4 77.0 79.7 82.5 85.4 88.5 91.5 94.8 100.0 103.5 107.2 110.9 114.8 118.8 123.0 127.3 131.8 136.5 141.3 146.2 151.4 156.7 162.2 167.9 173.8 179.9 186.2 192.8 203.5 210.7 218.1 225.7 233.6 241.8 250.
GPS- GPS+ External Reference Input Line2- Line2+ Line2- Line2+ Tone- Tone+ uP uP Summing Amplifier uP uP uP Line 1 Deviation Control VCA GPS uP uP External Ref. Div.
A B C 1 DB25 J1 13 25 12 24 11 23 10 22 9 21 8 20 7 19 6 18 5 17 4 16 3 15 2 14 1 2 +5V Vref CH_EN +12V PTT_IN T/R_RELAY LINE2+ LINE2TONE+ TONELINEGPS+ GPSLINE+ +28V GND 180R R24 GND D14 GND 180R R25 180R R23 GND R26 3 MOSI SCLK PA_CS CS2 Q1 BSS138 BZX84C5V6 D13 180R BAV99 R22 180R R21 180R BAV99 5V_PROT D12 5V_PROT GND BAV99 D11 5V_PROT 180R 47K R1 D9 BAW56 47K R2 4 15 2 9 7 1 C1 100nF C C Q Q PL R19 22R I7 I6 I5 I4 I3 I2 I1 I0 SI U1 6 5 4 3 14 13 12
1 2 3 4 5 6 7 8 FILTER_OFF +5TONE 1uF 24 C509 18 D R507 1M 22pF C500 7 3 5 6 8 SCLK MOSI SCLK MOSI C502 TONE_INT C513 9 TONE_OUT CTCSS_OUT RX_SUB_IN RX_SUB_OUT 100nF 14 13 15 R514 1uF 10K TP500 TONE+CTCSS RX_IN+ RX_INRX_OUT COMP+ COMPCOMP_OUT 10 2 DG411 11 AUDIO_OUT 2 U502A 1 WAKE 3 LM224 R518 R519 47K 47K 47K C514 22nF (X7R - 10%) C515 100nF (NPO) 10 U502C 8 C516 9 LM224 1n2F (NPO) GND FX805 12 C R517 R527 47K R516 680R 23 3 22K AUDIO_IN 100nF
2 3 4 +5Q MOD_IN MOD_IN R605 R609 27K 10K 5 6 7 +5Q R631 +5Q 47R C630 C631 1uF 10nF R616 47R U600 4 +5Q X600 10nF 7 C614 C615 33pF 10nF R632 +5Q C607 1uF 10nF 8p2F C635 C637 8p2F 56pF 10nF 12M 7 GND SCLK MOSI R610 47K MOD_ADJ_FINE 2 10nF LE CLK DATA C622 C650 Vp1 5 8 FoLD 7 6 Vref VCC CLR LDAC 9 10 11 CS SCLK Din Dout UPO 4 NF 3u3F GND R600 4K7 ** GND Fo_CHAN R646 CHAN_PLL_SENSE C646 L718 220uH CHAN_PLL_IN C623 MOD_VCO_EN * 220nF MOD_VCO_
1 2 3 4 5 6 7 8 TP908 +5Q 12V 12V Max output current is 1A 2 Vin 5 EN C902 + 4 FB GND GND BLM31P121SG TP910 12V L902 L901 33uH 1 Vout DS5022P-224 3 + C938 + C903 C923 100uF 33uF 100nF 1 D907 3 6 470uF MBRM140T3 U910 LM1117DTX-ADJ 4 Vin Vo 2 Vo ADJ U911 LM317LM +10V 1 Vin C926 + C940 R925 220R 100nF 5 NC 33uF Vout Vout Vout Vout NC 2 3 7 6 8 1 C931 C942 + R927 220R Vin 5 NC +2.5V Vout Vout Vout Vout NC 2 3 7 6 8 +2.
1 2 3 4 5 6 7 8 D D 28V L800 R813 C801 100R C827 + 100nF 10uF 35V +10V L801 BLM31A601 R806 100R BLM31A601 Murata Ferrite SMD Choke C806 R819 68R C810 C811 + C802 100uF 35V 100nF L803 558nH 1n2F Coilcraft Maxi Spring Coils C 10nF GND R802 47R R807 100R C GND L804 558nH GND C823 R812 220R 100nF L810 1uH L805 120nH C807 GND L806 169nH C824 L811 3u3H 100nF GND 1 RF_in C822 Q804 R808 Q805 C808 1p8F 1n2F C812 1p8F RF_out 4 GND C825 3 L809 180nH U800 220pF
3 4 R237 47K GND 1K 47 MMBT2369 44 R202 C203 10K 100nF EXTAL Q204 R238 1K GND C205 C204 C206 C207 100nF 100nF 100nF 100nF 100nF XTAL U204 PF6 PF3 PF2 PF1 LCD_RS LCD_R/W LCD_E GND 74 71 70 69 MOD_PLL_SEL LCD_RS LCD_R/W LCD_E +5D3 MOD_PLL_SEL +5D1 R220 10K D R219 10K +5D2 R/W 14C88 U202C 9 14C88 8 TXDATA TERM_EN2 TERM_EN1 Fo_MOD_2 Fo_CHAN_2 5 10 1 DSR 14C89A 3 2 C U201A 4 CTS TX_LED U201B 6 5 C 10 DBGRX 14C89A 14C89A 9 C U201C 13 RXDATA U201D 11 12 C
1 2 3 4 5 6 7 8 JP12 uPHONE_IN AUDIO PROCESSING SECTION audio.sch 1 2 3 4 PTT_uPHONE MICROPROCESSOR CONTROL SECTION micro.
1 2 3 4 5 6 +2.
1 2 3 4 5 6 TERM_EN2 7 8 +5V D307 BAT54C TERM_EN1 R317 uPHONE_IN 1K R324 LINE_LEVEL_SENSE LINE_IN2 TP300 AUDIO_XFRMR F300 R300 T300 L2+ 120mA 3u3F 27R U301B D300 1.
1 2 3 4 5 6 7 8 +10V Q707 MMBT3904 R716 R703 120R C748 47R 10nF GND 10nF C723 3u3F GND C772 GND L708 330nH 4 3 MOD_VCO_OUT 2 10nF MSA0611 C708 GND R733 Q704 MMBFJ309 C732 GND 330R 22pF +10V GND R701 R740 47R 120R U702 1 3 C770 C709 C715 GND GND L709 C704 22pF MSA0611 R737 D700 BAT17 1K C733 3 10nF 100nF GND 2 10nF R729 -5V 100nF 100nF C726 10nF C727 3p9F L722 220nH L721 270nH L720 220nH 2 2 LO IF RF 10nF C765 15pF MSA0611 C755 C757 C758
