AD6620AS

Product Summary

The AD6620AS is a digital receiver with four cascaded signal-processing elements: a frequency translator, two fixed-coefficient decimating filters, and a programmable coefficient decimating filter. The AD6620AS diversity channel decimating receiver is designed to bridge the gap between high speed ADCs and general purpose DSPs. When paired with an interleaved sampler such as the AD6600, the AD6620AS can process two data streams in the Diversity Channel Real input mode. Each channel is processed with coherent frequency translation and output sample clocks.

Parametrics

AD6620AS absolute maximum ratings: (1)Supply Voltage:–0.3V to +4.5V; (2)Input Voltage:–0.3V to VDD + 0.3V (Not 5 V Tolerant); (3)Output Voltage Swing:–0.3V to VDD + 0.3V; (4)Load Capacitance:200pF; (5)Junction Temperature Under Bias:+130℃; (6)Storage Temperature Range:–65℃ to +150℃; (7)Lead Temperature (5 sec):+280℃.

Features

AD6620AS features: (1)High Input Sample Rate: 65 MSPS Single Channel Real, 32.5 MSPS Diversity Channel Real, 32.5 MSPS Single Channel Complex; (2)NCO Frequency Translation; (3)Worst Spur Better than:100 dBc; (4)Tuning Resolution Better than 0.02 Hz; (5)2nd Order Cascaded Integrator Comb FIR Filter; (6)Linear Phase, Fixed Coefficients; (7)Programmable Decimation Rates: 2, 3 to 16; (8)5th Order Cascaded Integrator Comb FIR Filter; (9)Linear Phase, Fixed Coefficients; (10)Programmable Decimation Rates: 1, 2, 3 to 32; (11)Programmable Decimating RAM Coefficient FIR Filter; (12)Up to 130 Million Taps per Second; (13)256 20-Bit Programmable Coefficients; (14)Programmable Decimation Rates: 1, 2, 3 to 32; (15)Bidirectional Synchronization Circuitry; (16)Phase Aligns NCOs; (17)Synchronizes Data Output Clocks; (18)Serial or Parallel Baseband Outputs; (19)Pin Selectable Serial or Parallel; (20)Serial Works with SHARC, ADSP-21xx, Most Other DSPs; (21)16-Bit Parallel Port, Interleaved I and Q Outputs; (22)Two Separate Control and Configuration Ports; (23)Generic mP Port, Serial Port; (24)3.3 V Optimized CMOS Process; (25)JTAG Boundary Scan.

Diagrams