Description
a .
The AD9975 is a single-supply, broadband modem, mixed signal, front end (MxFE™) IC.
Features
* Low Cost, 3.3 V-CMOS, Mixed Signal, Front End Converter for Broadband Modems 10-Bit D/A Converter (TxDAC+®) 50 MSPS Input Word Rate 2؋ Interpolating Low-Pass Transmit Filter 100 MSPS DAC Output Update Rate Wide (21 MHz) Transmit Bandwidth Power-Down Modes 10-Bit, 50 MSPS A/D Converter Fourth Order L
Applications
* Powerline Networking Home Phone Networking
TXEN RXEN TXCLK RXCLK
Broadband Modem Mixed-Signal Front End AD9975
FUNCTIONAL BLOCK DIAGRAM
AD9975
10 K 10 TX+ TxDAC+ TX
* CLK1 ADIO[9:0] CLK-GEN CLK2 OSCIN XTAL
10
ADC
PGA
LPF
PGA
RX+ RX
* AGC[2:0]
3 3
SPORT
REGISTER CONTROL
GEN