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Optical Microcontroller

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

Product Details

Key Features

Applications/Uses

Parametric specs for Fiber Monitoring and Control
ADCs 18-Input Muxable
Resolution (bits) 13
# DACs/ Resistors 2 DACs
8 DACs
FS Out (kΩ) None
Steps None
Temp. Sensor Internal
Memory Program
VSUPPLY (V) 3.0 to 3.6
Control Interface I2C
JTAG Bootloader
Package/Pins TQFN/40
Budgetary
Price (See Notes)
3.15
Parametric specs for Microcontrollers
MCU Core MAXQ20
Internal Flash (KBytes) 32
Core Clock Speed (MHz) (max) 10
Data Processing 16-bit
Internal SRAM (KBytes) 1
Package/Pins TQFN/40
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Simplified Block Diagram

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Parameters

Parametric specs for Fiber Monitoring and Control
ADCs 18-Input Muxable
Resolution (bits) 13
# DACs/ Resistors 2 DACs
8 DACs
FS Out (kΩ) None
Steps None
Temp. Sensor Internal
Memory Program
VSUPPLY (V) 3.0 to 3.6
Control Interface I2C
JTAG Bootloader
Package/Pins TQFN/40
Budgetary
Price (See Notes)
3.15
Parametric specs for Microcontrollers
MCU Core MAXQ20
Internal Flash (KBytes) 32
Core Clock Speed (MHz) (max) 10
Data Processing 16-bit
Internal SRAM (KBytes) 1
Package/Pins TQFN/40

Key Features

  • 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

Applications/Uses

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

Description

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.

Simplified Block Diagram

DS4830: Typical Application Circuit DS4830: Typical Application Circuit Zoom icon

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .