
Analog Devices
PRODUCT DESCRIPTION
The AD9875 is a single-supply broadband modem mixed-signal front end (MxFE) IC. The devices contain 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 AD9875 provides 10-bit converter performance on both the Tx and Rx paths.
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
2x/4x 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