Part Number: AD6643
Function: Dual IF Receiver
Package: 9 mm × 9 mm × 0.85 mm, 64-lead LFCSP Type
Manufacturer: Analog Devices
Pinouts:
Description
The AD6643 is an 11-bit, 200 MSPS/250 MSPS, dual-channel intermediate frequency (IF) receiver specifically designed to support multi-antenna systems in telecommunication applications where high dynamic range performance, low power, and small size are desired. The device consists of two high performance analog-to-digital converters (ADCs) and noise shaping requantizer (NSR) digital blocks. Each ADC consists of a multistage, differential pipelined architecture with integrated output error correction logic, and each ADC features a wide bandwidth switched capacitor sampling network within the first stage of the differential pipeline. An integrated voltage reference eases design considerations. A duty cycle stabilizer (DCS) compensates for variations in the ADC clock duty cycle, allowing the converters to maintain excellent performance.
Features
1. 11-bit, 250 MSPS output data rate per channel
2. Performance with NSR enabled
3. Performance with NSR disabled
4. Total power consumption: 706 mW at 200 MSPS
5. 1.8 V supply voltages
6. Integer 1-to-8 input clock divider (625 MHz maximum input)
7. Internal ADC voltage reference
8. Differential analog inputs with 400 MHz bandwidth
9. 95 dB channel isolation/crosstalk
10. Energy saving power-down modes
Applications:
1. Communications
2. Diversity radio and smart antenna (MIMO) systems
3. Multimode digital receivers (3G)
4. WCDMA, LTE, CDMA2000
5. WiMAX, TD-SCDMA
6. I/Q demodulation systems
7. General-purpose software radios
Other data sheets are available within the file:
AD6643200EBZ, AD6643-250EBZ, AD6643BCPZ-200, AD6643BCPZ-250