深圳市中立信电子科技有限公司

AD9763ASTZ

数模转换器- DAC 10-Bit 125 MSPS Dual TxDAC+ Digital-to-Analog Converters

GENERAL DESCRIPTION AD9763ASTZ

The AD9763/AD9765/AD9767 are dual-port, high speed, 2-channel, 10-/12-/14-bit CMOS DACs. Each part integrates two high quality TxDAC+® cores, a voltage reference, and digital interface circuitry into a small 48-lead LQFP. The AD9763/ AD9765/AD9767 offer exceptional ac and dc performance while supporting update rates of up to 125 MSPS.

The AD9763/AD9765/AD9767 have been optimized for  processing I and Q data in communications applications. The  digital interface consists of two double-buffered latches as well  as control logic. Separate write inputs allow data to be written to  the two DAC ports independent of one another. Separate clocks  control the update rate of the DACs.

FEATURES AD9763ASTZ

10-/12-/14-bit dual transmit digital-to-analog converters (DACs)

125 MSPS update rate

Excellent SFDR to Nyquist @ 5 MHz output: 75 dBc

Excellent gain and offset matching: 0.1%

Fully independent or single-resistor gain control

Dual-port or interleaved data

On-chip 1.2 V reference

5 V or 3.3 V operation

Power dissipation: 380 mW @ 5 V

Power-down mode: 50 mW @ 5 V

48-lead LQFP

APPLICATIONS AD9763ASTZ

Communications

Base stations

Digital synthesis

Quadrature modulation

3D ultrasound