描述 Description

The CXA3197R is a high-speed D/A converter which can perform multiplexed input of two system 10-bit data.

This IC realizes a maximum conversion rate of 125MSPS. Multiplexed operation is possible by inputing the 1/2 frequency-divided clock or by halving the frequency of the clock internally with the clock frequency divider circuit having the reset pin. The data input is at TTL level, and the clock input and reset input can select either TTL or PECL level according to the application.

特性 Features

? Maximum conversion rate:

During PECL operation: 125MSPS

During TTL operation: 100MSPS

? Resolution: 10 bits

? Low power consumption: 480mW (typ.)

? Data input level: TTL

? Clock, reset input level: TTL and PECL compatible

? 2:1 multiplexed input function

? 1/2 frequency-divided clock output possible by the built-in clock frequency divider circuit

? Voltage output (50? load drive possible)

? Single power supply or ±dual power supply operation

? Reset signal polarity switching function

Applications

? LCD

? DDS

? HDTV

? Communications (QPSK, QAM)

? Measuring devices