AMC6V704中文资料具有四个 200mA 电流 DAC、四个电压输出 DAC 以及多通道 ADC 的光学控制器数据手册TI规格书

描述 Description

The AMC6V704 is a highly integrated, low-power analog monitor and controller for optical-transceiver applications.

The AMC6V704 includes four, 12-bit current-output digital-to-analog converters (IDACs) and four, 12-bit voltage-output DACs (VDACs) with programmable output ranges. The device also includes a 12-bit, 1MSPS analog-to-digital converter (ADC) used for external and internal signal monitoring, supply and temperature alarm monitors, and a high-precision internal reference.

The AMC6V704 VDACs support both positive and negative output-range operation and are capable or sourcing and sinking up to 50mA, making them an excellent choice for biasing optical modulators. Additionally, the AMC6V704 IDACs support a full-scale output range of 200mA with very-low power dissipation. The IDACs eliminate the need for external components to bias laser diodes. In combination, the AMC6V704 four VDACs and four IDACs enable accurate biasing of electro-absorption modulated lasers.

The AMC6V704 also includes four input pins that are multiplexed to the ADC and incorporate a low-latency window comparator. These features make this device an excellent choice for received signal strength indicator (RSSI) and loss-of-signal (LOS) detection. The ADC is also capable of measuring the voltage at the IDAC pins, as well as the current sourced or sunk by the VDACs, thus enabling these outputs to be monitored.

The AMC6V704 low-power, high-integration, very small size, and wide operating temperature range make this device an excellent choice as an all-in-one control circuit for optical modules.

特性 Features

Four 12-bit current output DACs (IDACs)

200mA full-scale output range

Low supply headroom: 300mV at 200mA



Four 12-bit voltage output DACs (VDACs)

Selectable full-scale output ranges: –5V, –2.5V, +2.5V and +5V

High-current drive capability: ±50mA



Multichannel, 12-bit, 1MSPS SAR ADC

Four external inputs: 2.5V and 5V ranges

Four IDAC voltage monitor channels

Four VDAC current monitor channels

Programmable sequencer

Programmable out-of-range alarms



Internal 2.5V reference

Supply and temperature fault alarms

SPI and I2C interfaces: 1.7V to 3.6V operation

SPI: 4-wire interface

I2C: Four target addresses



Specified temperature range: –40°C to +125°C