GENERAL DESCRIPTION
The AD9868 is a mixed-signal front-end (MxFE®) IC for transceiver applications requiring Tx path and Rx path functionality with data rates up to 80 MSPS. A lower cost, pin compatible version of the AD9865, the AD9868 removes the current amplifier (IAMP) IOUTP functionality and limits the PLL VCO operating range of 80 MHz to 200 MHz.

FEATURES
Low cost 3.3 V CMOS MxFE for broadband modems
10-bit DAC converter
  2×/4× interpolation filter
  200 MSPS DAC update rate
Integrated 17 dBm line driver with 19.5 dB gain control
10-bit, 80 MSPS, ADC converter
−12 dB to +48 dB low noise RxPGA (<3 nV/√Hz)
Third-order, programmable low-pass filter
Flexible digital data path interface
  Half- and full-duplex operation
  Pin compatible with the AD9865
  Various power-down/reduction modes
Internal clock multiplier (PLL)
2 auxiliary programmable clock outputs
Available in a 64-lead LFCSP_VQ

APPLICATIONS
Broadband wireline networking