AD6659BCPZ-80

GENERAL DESCRIPTION

The AD6659 is a mixed-signal, dual-channel IF receiver supporting radio topologies requiring two receiver signal paths, such as in main/diversity or direct conversion. This communications systems processor consists of two high performance analog-todigital converters (ADCs) and noise shaping requantizer (NSR) digital blocks. It is designed to support various communications applications where high dynamic range performance and small size are desired.

FEATURES

12-bit, 80 MSPS output data rate per channel
1.8 V analog supply operation (AVDD)
1.8 V to 3.3 V output supply (DRVDD)
Integrated noise shaping requantizer (NSR)
Integrated quadrature error correction (QEC)
Performance with NSR enabled
SNR = 81 dBFS in 16 MHz band up to 30 MHz at 80 MSPS
Performance with NSR disabled
SNR = 72 dBFS up to 70 MHz at 80 MSPS
SFDR = 90 dBc up to 70 MHz input at 80 MSPS
Low power: 98 mW per channel at 80 MSPS
Differential input with 700 MHz bandwidth
On-chip voltage reference and sample-and-hold circuit
2 V p-p differential analog input
Serial port control options
Offset binary, gray code, or twos complement data format
Optional clock duty cycle stabilizer
Integer 1-to-6 input clock divider
Data output multiplex option
Built-in selectable digital test pattern generation
Energy-saving power-down modes
Data clock out with programmable clock and data alignment

APPLICATIONS

Communications
Diversity radio systems
Multimode digital receivers
3G, W-CDMA, LTE, CDMA2000, TD-SCDMA, MC-GSM
I/Q demodulation systems
Smart antenna systems
Battery-powered instruments
General-purpose software radios