GENERAL DESCRIPTION

The AD9867 is a mixed-signal front-end (MxFE) IC for transceiver applications requiring Tx and Rx path functionality with data rates up to 75 MSPS. Its flexible digital interface, power-saving modes, and high Tx-to-Rx isolation make the part well suited for half-duplex and full-duplex applications. The digital interface is extremely flexible allowing simple interfaces to digital back ends.

FEATURES

Low cost, 3.3 V CMOS MxFE® for broadband modems

10-bit digital-to-analog converter (DAC)

2×/4× interpolation filter

250 MSPS DAC update rate

10-bit, 75 MSPS ADC

Low noise RxPGA

Dual channel muxed input

6 dB input overload attenuator

−12 dB to +48 dB (without attenuator)

Third-order programmable low-pass filter

Flexible digital datapath interface

Half-duplex and full-duplex operation

Programmable delay Tx driver disable signal

Various power-down/reduction modes

Internal clock multiplier (PLL)

2 auxiliary programmable clock outputs

64-lead LFCSP

APPLICATIONS

Power-line networking