PRODUCT DESCRIPTION

The AD9876 is a single-supply broadband modem mixed-signal front end (MxFE) IC. The device contains a transmit path interpolation filter and DAC and a receive path PGA, LPF, and ADC supporting a variety of broadband modem applications. Also on-chip is a PLL clock multiplier that provides all required clocks from a single crystal or clock input. The AD9876 provides 12-bit converter performance on both the Tx and Rx path.

FEATURES

Low Cost 3.3 V CMOS Mixed-Signal Front End (MxFE™)

Converter for Broadband Modems

10-/12-Bit D/A Converter (TxDAC+®)

64/32 MSPS Input Word Rate

2
/4
Interpolating LPF or BPF Transmit Filter

128 MSPS DAC Output Update Rate

Wide (26 MHz) Transmit Bandwidth

Power-Down Mode

10-/12-Bit 50 MSPS A/D Converter

Fourth Order Low-Pass Filter 12 MHz or 26 MHz with Bypass

–6 dB to +36 dB Programmable Gain Amplifier

Internal Clock Multiplier (PLL)

Clock Outputs

Voltage Regulator Controller

48-Lead LQFP Package

APPLICATIONS

Powerline Networking

Home Phone Networking

xDSL

Broadband Wireless

Home RF