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Optical Microcontroller

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Rich Optical Feature Set Eases Controller Implementation in High-Performance Optical Transceivers

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Part Details
  • 16-Bit Low-Power Microcontroller
  • 36 kWords Total Program Memory
    • 32 kWords Flash Program Memory
    • 4 kWords ROM Program Memory
  • 1 kWords Data RAM
  • 8 DAC Channels
    • 12-Bit Buffered Voltage DACs
    • Internal or External Reference
  • 10 PWM Channels
    • Boost/Buck DC-DC Control with Support for 7-Bit to 12-Bit Resolution and 1MHz Switching Frequency
    • Supports 4-Channel TECC H-Bridge Control
  • 8-Bit Fast Comparator with 16-Input Mux
    • 1.6µs per Comparison
  • 13-Bit A/D Converter with 26-Input Mux (27ksps)
  • Temperature Measurement Analog Front-End
    • Internal Temperature Sensor, &plusnm;3°C
    • 0.0625°C Resolution
    • Supports Two External Temperature Sensors
    • Differential Rail-Rail Inputs
  • 31 GPIO Pins
  • Maskable Interrupt Sources
  • Internal 20MHz Oscillator, CPU Core Frequency 10MHz
    • 4% Accurate from 0°C to +50°C
  • Up to 133MHz External Clock for PWM and Timers
  • Slave Communication Interface: SPI or 400kHz I2C-Compatible 2-Wire
  • Master Communication Interface: SPI, 400kHz I2C-Compatible, or Maxim 3-Wire Laser Driver
  • I2C and JTAG Bootloader
  • Two 16-Bit Timers
  • 2.97V to 3.63V Operating Voltage Range
  • Brownout Monitor
  • JTAG Port with In-System Debug and Programming
  • Low Power Consumption (16mA) with All Analog Active
Additional Details
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The DS4830 provides a complete optical control, calibration, and monitor solution based on a low-power, 16-bit, microcontroller core, providing program and RAM data memory. I/O resources include a fast/accurate analog-to-digital converter (ADC), fast comparators with an internal comparison digital-to-analog converter (DAC), 12-bit DACs, 12-bit PWMs, internal and external temperature sensors, fast sample/hold, I2C slave host interface, and a multiprotocol serial master/slave interface.

Direct connection of diode-connected transistors, used as remote temperature sensors, is supported as well as expansion to additional external digital temperature sensor ICs using the on-chip master I2C interface. An independent slave I2C interface facilitates communication to a host microprocessor in addition to password-protected in-system reprogramming of the on-chip flash.

Firmware development is supported by third-party highly versatile C-compilers and development software that programs flash and performs in-circuit debug through the integrated JTAG interface and associated hardware.


  • Optical Transceivers: XFP, SFP, SFP+, QSFP, 40G, 100G
  • PON Diplexers and Triplexers: GPON, 10GEPON, XPON OLT, ONU

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