Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsMicrocontrollers, Microprocessors & QuartzesEmbedded microcontroller TQFN 40 EP (5x5) 16-Bit 10 MHz I/O number 31

General Description

The DS4830A is a low-power, 16-bit microcontroller with a

unique peripheral set supporting optical applications that

require high-resolution conversion of many analog sig-

nals and digital signal processing (DSP) of those signals,

high-speed data communication to an external host, and

ultra-low power dissipation. A wide variety of optical trans-

ceiver controller applications is supported without need of

external circuitry, thereby minimizing cost and PCB area.

Power dissipation and throughput are optimized through

the use of a programmable round-robin analog-to-digital

converter (ADC) and 10-bit fast comparator, which oper-

ate completely independently of the core and significantly

relieve core overhead. A dual multiply/accumulate (MAC)

is included to minimize interrupt service timing/design

complexity. Ten 16-bit PWM channels are included to pro-

vide an unprecedented level of precision in digital power-

control applications.

The DS4830A provides a complete optical control, cali-

bration, and monitor solution compatible with SFF-8472.

Additional resources include a fast/accurate ADC, fast

comparators with an internal comparison digital-to-analog

converter (DAC), eight independent 12-bit DACs, an

accurate internal temperature sensor, two fast sample/

holds with various programmable options, and a multi-

protocol serial master/slave interface. An independent,

400kHz-compliant, slave I

C interface with four configu-

rable slave addresses facilitates communication to a host,

in addition to password-protected in-system programming

of the on-chip flash.

Extensive design-in and applications support are available,

including comprehensive user’s and programmer’s guides,

complete reference designs with documented code, and

in-depth application notes showing numerous code exam-

ples in both C and assembly language. Firmware develop-

ment is supported by third-party vendors.

Applications

● PON Diplexers and Triplexers: GPON, 10GEPON,

XPON OLT, ONU

● Optical Transceivers: XFP, SFP, SFP+, QSFP+,

CSFP, 40G, 100G

Benets and Features

● 16-Bit Low Power Microcontroller

● Slave Communication Interface: 400kHz without

Clock Stretching I

C-Compatible 2-Wire or SPI

● Master Communication Interface: 400kHz I

C-

Compatible 2-Wire, SPI, or Maxim 3-Wire Laser

Driver

● Pin-Compatible with DS4830

● 32KWords Flash Program Memory

● 2KWords Data RAM

● 4KWords ROM Memory

● 32-Level Stack Memory

● 2.85V to 3.63V Operating Voltage Range

● 8 Independent 12-Bit Voltage DACs with 2.5V

Internal Reference or External Reference

● 10 x 16-Bit PWM Channels

• Supports 4-Channel TECC H-Bridge Control

• Boost/Buck DC-DC Control

• 1MHz Switching Frequency

● 13-Bit ADC with 26-Input Mux

• 40ksps

• Individual Channel Averaging Option

● Two Independent Sample/Holds with Individual

Channel Averaging Option

• 1V Full Scale

• 300ns Sample Time

● Fast Temperature Measurement with Averaging Option

• Internal Temperature Sensor, ±2°C

● 10-Bit Fast Comparator with 16 Input Mux

● 31 GPIO Pins

● Internal 20MHz Oscillator

● Up to 133MHz External Clock for PWM and Timers

● Two 16-Bit Timers and One Programmable Watchdog Timer

● Maskable Interrupt Sources

● Fast Hardware CRC-8 for Packet Error Checking (PEC)

● I

C and JTAG Bootloader

● Four Software Interrupts

● Supply Voltage Monitor (SVM) and Brownout Monitor

● JTAG Port with In-System Debug and Programming

● Low Power Consumption (16mA) with All Analog

Active

● 5mm x 5mm, 40-Pin TQFN Package

Ordering Information appears at end of data sheet.

For related parts and recommended products to use with this part, refer

to www.maximintegrated.com/DS4830A.related.

DS4830A Optical Microcontroller

19-6870; Rev 0; 12/13

Summary of content (31 pages)

PAGE 1
DS4830A General Description The DS4830A is a low-power, 16-bit microcontroller with a unique peripheral set supporting optical applications that require high-resolution conversion of many analog signals and digital signal processing (DSP) of those signals, high-speed data communication to an external host, and ultra-low power dissipation. A wide variety of optical transceiver controller applications is supported without need of external circuitry, thereby minimizing cost and PCB area.
PAGE 2
DS4830A Optical Microcontroller Absolute Maximum Ratings VDD to GND........................................................-0.3V to +3.97V SCL, SDA, RST...................................................-0.3V to +3.63V All Other Pins to GND except REG18 and REG274............................-0.3V to (VDD + 0.5V)* Continous Sink Current....................... 20mA per pin, 50mA total Continous Source Current...................
PAGE 3
DS4830A Optical Microcontroller DC Electrical Characteristics (continued) (VDD = 2.85V to 3.63V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VDD = 3.3V, TA = +25°C.) (Note 1) PARAMETER Voltage Range: GP[15:0], SHEN, DACPW[7:0], REFINA, REFINB SYMBOL VRANGE CONDITIONS (Note 2) MIN TYP -0.
PAGE 4
DS4830A Optical Microcontroller DC Electrical Characteristics: Fast Comparator (VDD = 2.85V to 3.63V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VDD = 3.3V, TA = +25°C.) (Note 1) PARAMETER Fast Comparator Resolution SYMBOL CONDITIONS FCR Fast Comparator Internal Reference Accuracy FCREFTC Fast Comparator Operating Current IFASTCOMP Fast Comparator Full Scale VFS-COMP MIN TYP MAX UNITS 10 Bits ±0.2 % See the DC Electrical Characteristics TA = +25°C mA 2.
PAGE 5
DS4830A Optical Microcontroller DC Electrical Characteristics: Sample/Hold (VDD = 2.85V to 3.63V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VDD = 3.3V, TA = +25°C.
PAGE 6
DS4830A Optical Microcontroller Electrical Characteristics: I2C-Compatible Interface (continued) (VDD = 2.85V to 3.63V, TA = -40°C to +85°C, unless otherwise noted.) (Note 1) (See Figure 1.
PAGE 7
DS4830A Optical Microcontroller SPI Digital Interface Specification (VDD = 2.85V to 3.63V, TA = -40°C to +85°C, unless otherwise noted.) (Note 1) (See Figure 4 and Figure 5.) PARAMETER SYMBOL SPI Master Operating Frequency 1/tMSPICK SPI Slave Operating Frequency 1/tSSPICK SPI I/O Rise/Fall Time tSPI_RF CONDITIONS MIN TYP MAX UNITS (Note 14) 5 MHz (Note 14) 2.
PAGE 8
DS4830A Optical Microcontroller SPI Digital Interface Specification (continued) (VDD = 2.85V to 3.63V, TA = -40°C to +85°C, unless otherwise noted.) (Note 1) (See Figure 4 and Figure 5.) Note 10: Computed using end-point best fit and histogram method. Note 11: ADC conversions are delayed up to 1.6µs if the fast comparator is sampling the selected ADC channel. This can cause a slight decrease in the ADC sampling rate. Note 12: Temperature readings averaged 64 times.
PAGE 9
DS4830A Optical Microcontroller Timing Diagrams (continued) tTL VREF TCK tTH TMS/TDI tDVTH tTHDX TDO tTLQ Figure 2. JTAG Timing Diagram WRITE MODE MCS tL tCH 0 MSCL MSDIO tT tCL 1 A6 A5 2 3 4 5 6 7 8 9 A4 A3 A2 A1 A0 R/W D7 D6 tDS 10 11 D5 12 D4 13 D3 14 D2 15 D1 D0 tDH READ MODE MCS tL tCH MSCL 0 tT tCL 1 2 3 4 5 6 7 A4 A3 A2 A1 A0 R/W 8 9 10 11 12 13 14 15 tDS MSDIO A6 A5 D7 D6 D5 D4 D3 D2 D1 D0 tDH Figure 3.
PAGE 10
DS4830A Optical Microcontroller Timing Diagrams (continued) SHIFT SAMPLE SHIFT SAMPLE MSPICS (SAS = 0) MSPICK CKPOL/CKPHA MSPICK CKPOL/CKPHA tMSPICK 1/0 1/0 0/1 0/1 tMCH 1/1 tMCL 1/1 0/0 0/0 tMOH tSPI_RF tMOV MSPIDO MSB LSB MSB-1 tMIS MSPIDI tMLH tMIH MSB LSB MSB-1 Figure 4.
PAGE 11
DS4830A Optical Microcontroller Typical Operating Characteristics (TA = +25°C, unless otherwise noted.) IDD CPU vs. VDD 7.3 IDDDAC vs. VDD toc01 6.05 7.25 6 5.95 IDD DAC (mA) IDD CPU (mA) 7.2 7.15 7.1 5.9 5.85 5.8 5.75 7.05 7 toc02 6.1 2.85 3 TA = +25oC 5.7 TA = +25oC 3.15 3.3 3.45 5.65 3.6 2.85 3 3.15 VDD (V) 3.3 3.45 3.6 VDD (V) IDD ADC vs. VDD IDD FASTCOMP vs. VDD toc03 2.85 toc04 2.48 2.825 2.45 2.42 IDD FASTCOMP(mA) IDD ADC(mA) 2.8 2.775 2.75 2.725 2.
PAGE 12
DS4830A Optical Microcontroller Typical Operating Characteristics (continued) (TA = +25°C, unless otherwise noted.) DAC INL vs. DAC SETTING DAC DNL vs. DAC SETTING toc07 0.4 0.3 3 2 0.1 DAC INL(LSB) DAC DNL(LSB) 0.2 0 -0.1 -0.2 1 0 -1 -2 -0.3 No Load, VDD = 3.3V, TA = +25oC -0.4 -0.5 toc08 4 0 1023 -3 2046 3069 -4 4092 No Load, 3.3V, TA = +25oC 0 1023 FAST COMP DNL vs. FAST COMP SETTING 0.4 0.4 FAST COMP INL (LSB) FAST COMP DNL (LSB) toc10 0 0.2 0.1 0 -0.1 -0.2 -0.
PAGE 13
DS4830A Optical Microcontroller GP14 MSDIO SHEN MSCL 28 27 26 25 GP15 30 29 MSDI MCS VDD PWM8 TOP VIEW PWM9 Pin Configuration 24 23 22 21 REFINA 31 20 GP13 DACPW0 32 19 GP12 DACPW1 33 18 GP11 DACPW2 34 17 GP10 DACPW3 35 16 REG18 DS4830A DACPW4 36 15 GP9 14 GP8 DACPW5 37 DACPW6 38 REFINB 39 13 GP7 EP + 12 GP6 11 GP5 6 7 8 9 10 VDD GP3 GP4 SDA 5 GP2 SCL 4 GP1 3 GP0 2 REG274 1 RST DACPW7 40 TQFN (5mm x 5mm) Pin Description PIN NAME INPUT STRUCTURE(S) O
PAGE 14
DS4830A Optical Microcontroller Pin Description (continued) PIN NAME INPUT STRUCTURE(S) OUTPUT STRUCTURE POWER-ON STATE SELECTABLE FUNCTIONS (FIRST COLUMN IS DEFAULT FUNCTION) 10 GP4 ADC/Digital Input Push-Pull 55µA Pullup JTAG TCK ADC-S4 ADCD2P — P6.0 11 GP5 ADC/Digital Input Push-Pull 55µA Pullup JTAG TDI ADC-S5 ADCD2N — P6.1 12 GP6 ADC/Digital Input Push-Pull 55µA Pullup ADC-S6 ADCD3P PWM2 SPI SSPIDO P2.
PAGE 15
DS4830A Optical Microcontroller Pin Description (continued) PIN 32 33 34 35 36 37 INPUT STRUCTURE(S) NAME DACPW0 OUTPUT STRUCTURE POWER-ON STATE Push-Pull High Impedance DAC0, FS = REFINA or Internal Reference PWM0 — — P0.4 Push-Pull High Impedance DAC1, FS = REFINA or Internal Reference PWM1 — — P0.5 Digital Push-Pull High Impedance DAC2, FS = REFINA or Internal Reference PWM2 CLKIN — P6.
PAGE 16
DS4830A Optical Microcontroller Selectable Functions FUNCTION NAME DESCRIPTION ADC-D[7:0][P/N] Differential Inputs to ADC. Also used for sample/hold inputs. ADC-REFIN[A/B] REFINA and REFINB Monitor Inputs to ADC ADC-S[15:0] Single-Ended Inputs to ADC ADC-SH[P/N][1:0] Sample/Hold Inputs 1 and 0 ADC-VDD VDD Monitor Input to ADC DAC[7:0] Voltage DAC Outputs MSCL, MCS, MSDIO MSCL, MSDA MSCL-ALT, MSDA-ALT MSPICK, MSPICS, MSPIDI, MSPIDO P0.n, P1.n, P2.n, P6.
PAGE 17
DS4830A Optical Microcontroller Block Diagram DS4830A 31 x GPIO COMMUNICATION I2C 400kHz SLAVE SPI SLAVE I2C 400kHz MASTER SPI MASTER 3W MASTER 10 x PWMs16-BIT 8 x DACs 12-BIT VOLTAGE INTERNAL REF 16-BIT CPU AT 10MHz 8K x 8 ROM 64K x 8 FLASH I2C BOOTLOADER 4K x 8 SRAM 32 x 16 LEVEL STACK POR WATCHDOG 2 x 16-BIT TIMERS 2 x HARDWARE 16-BIT MULTIPLIER AND 48-BIT ACCUMULATOR GP PORT1 x8 FAST COMPARATOR DAC 10-BIT 16-CHANNEL 625ksps SEQUENCER 1.
PAGE 18
DS4830A Detailed Description The following is an introduction to the primary features of the DS4830A optical microcontroller. More detailed descriptions of the device features can be found in the DS4830A User’s Guide. Core Architecture The device employs a low-power, low-cost, high-performance, 16-bit RISC microcontroller with on-chip flash memory. It is structured on an advanced, 16 accumulatorbased, 16-bit RISC architecture.
PAGE 19
DS4830A Optical Microcontroller SYSTEM REGISTERS 8h AP 9h A Bh PFX Ch IP Dh SP Eh DPC PROGRAM MEMORY SPACE 00h DATA MEMORY (WORD MODE) FFFFh FFFFh FFFFh 8FFFh 9FFFh 8FFFh 4K x 16 UTILITY ROM DP Fh DATA MEMORY (BYTE MODE) 0Fh 8000h 7FFFh 8K x 8 UTILITY ROM 8000h 4K x 16 UTILITY ROM 8000h PERIPHERAL REGISTERS 0h M0 1h M1 2h M2 3h M3 4h M4 32K x 16 USER PROGRAM FLASH MEMORY M5 5h 00h 1Fh 00h 1Fh 32 x 16 STACK 0FFFh 001Fh 0010h 0000h PASSWORD 0000h 4K x 8 SRAM DATA
PAGE 20
DS4830A Optical Microcontroller Programming In-Application Programming The microcontroller’s flash memory can be programmed by one of two methods: in-system programming and inapplication programming. These provide great flexibility in system design as well as reduce the life-cycle cost of the embedded system. Programming can be password protected to prevent unauthorized access to code memory.
PAGE 21
DS4830A Optical Microcontroller The peripheral registers define additional functionality and the functionality is broken up into discrete modules. Both the system registers and the peripheral registers are described in detail in the DS4830A User’s Guide. referred to as CPU state. If a brownout occurs during this tSU:MOSC, the device again goes back to the brownout state. Otherwise, it enters into CPU state. In CPU state, the brownout detector is also enabled.
PAGE 22
DS4830A Execution resumes at location 8000h following a watchdog timer reset. The watchdog reset has the same effect as the external reset as far as the reset values of all registers are concerned. Internal System Reset The host can issue an I2C command (BBh) to reset the communicating device. This reset has the same effect as the external reset as far as the reset values of all registers are concerned. Also, an internal system reset can occur when the in-system programming is done (ROD = 1).
PAGE 23
DS4830A PI[0,1,2,6], PD[0,1,2,6], EIE[0,1,2,6], EIF[0,1,2,6], and EIES[0,1,2,6]) in Modules 0 and 1 and each pin can be individually configured. The pin is either high impedance or a weak pullup when defined as an input, dependent on the state of the corresponding bit in the output register. In addition, each pin can function as an external interrupt with individual enable, flag and active edge selection, when programmed as input. The GPIO pins also having DAC function are by default high impedance.
PAGE 24
DS4830A Optical Microcontroller Sample/Hold capacitance on the input node and the sample capacitor before sampling begins. The negative input pins are used to reduce ground offsets and noise. Pin combinations GP2-GP3 and GP12-GP13 can be used for sample/hold conversions if enabled in the SHCN register. These two can be independently enabled or disabled by writing a 1 or 0 to their corresponding bit locations in SHCN register. A data buffer location is reserved for each channel.
PAGE 25
DS4830A Optical Microcontroller The ADC controller provides options to average the internal temperature results. The device provides 1, 8, 16, and 32 samples averaging configurations for the internal temperature. the corresponding PWM output and selects the PWM polarity. The user can set the duty cycle and the frequency of each PWM output individually by configuring the corresponding DCYCn register and the PWMCFGn register. The ADC related SFRs are accessed in Module 1 and Module 4.
PAGE 26
DS4830A Optical Microcontroller Fast Comparator/Quick Trips The device supports 10-bit quick trip comparison functionality. The quick trips may be used to continuously monitor user defined channels in a round robin sequence. The quick trip controller allows the user to control the list of channels to monitor in the round-robin sequence. The quick trip (analog) performs two comparisons on any selected channel. 1) Comparison with a high threshold value. 2) Comparison with a low threshold value.
PAGE 27
DS4830A Serial Peripheral Interface Module The device supports master and slave SPI interfaces. The SPI provides an independent serial communication channel to communicate synchronously with peripheral devices in a multiple master or multiple slave system. The interface allows access to a four-wire, full-duplex serial bus, and can be operated in either master mode or slave mode. Collision detection is provided when two or more masters attempt a data transfer at the same time.
PAGE 28
DS4830A Optical Microcontroller In-Circuit Debug Embedded debugging capability is available through the JTAG-compatible test access port (TAP). Embedded debug hardware and embedded ROM firmware provide in-circuit debugging capability to the user application, eliminating the need for an expensive in-circuit emulator. Figure 12 shows a block diagram of the in-circuit debugger.
PAGE 29
DS4830A Optical Microcontroller Typical Application Circuit VCC (+3.3V) VCCT 25Ω VSEL TOUTA MD DFB 25Ω 25Ω SCL MSCL TOUTC SDA MSDIO VOUT CSEL VCCT VSEL MCS ALT MASTER I2C MODE_DEF2 (SDA) MODE_DEF1 (SCL) ROSA 13-BIT ADC R2 MAX3948 DFB BIAS MONITOR SCL 25Ω SLAVE I2 C TOUTA MD 25Ω DS4830A R1 MAX3948 TOUTC SDA VOUT CSEL VCCT VSEL RSSI MONITOR TOUTA MD R3 MAX3948 DFB SCL 25Ω 25Ω TOUTC SDA VOUT CSEL VCCT VSEL TOUTA MD MAX3948 DFB SCL 25Ω www.
PAGE 30
DS4830A Optical Microcontroller Package Information Ordering Information PART TEMP RANGE PIN-PACKAGE DS4830AT+ -40°C to +85°C 40 TQFN-EP* DS4830AT+T -40°C to +85°C 40 TQFN-EP* +Denotes a lead(Pb)-free/RoHS-compliant package. T = Tape and reel. *EP = Exposed pad. www.maximintegrated.com For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only.
PAGE 31
DS4830A Optical Microcontroller Revision History REVISION NUMBER REVISION DATE 0 12/13 DESCRIPTION Initial release PAGES CHANGED — For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com. Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied.