GENERAL DESCRIPTION
The AD6657A is an 11-bit, 200 MSPS, quad channel intermediate frequency (IF) receiver specifically designed to support multiple antenna systems in telecommunication applications where high dynamic range performance, low power, and small size are desired.

FEATURES
   11-bit, 200 MSPS output data rate per channel
   Integrated noise shaping requantizer
   Performance with NSR enabled
      SNR: 76.0 dBFS in 40 MHz band to 70 MHz at 185 MSPS
      SNR: 73.6 dBFS in 60 MHz band to 70 MHz at 185 MSPS
      SNR: 72.8 dBFS in 65 MHz band to 70 MHz at 185 MSPS
   Performance with NSR disabled
      SNR: 66.5 dBFS to 70 MHz at 185 MSPS
      SFDR: 88 dBc to 70 MHz at 185 MSPS
   Low power: 1.2 W at 185 MSPS
   1.8 V analog supply operation
   1.8 V LVDS (ANSI-644 levels) output
   1-to-8 integer clock divider
   Internal ADC voltage reference
   1.75 V p-p analog input range (programmable to 2.0 V p-p)
   Differential analog inputs with 800 MHz bandwidth
   95 dB channel isolation/crosstalk
   Serial port control
   User-configurable built-in self test (BIST) capability
   Energy saving power-down modes

APPLICATIONS
   Communications
   Diversity radio and smart antenna (MIMO) systems
   Multimode digital receivers (3G)
      WCDMA, LTE, CDMA2000
      WiMAX, TD-SCDMA
   I/Q demodulation systems
   General-purpose software radios