The AD6620 is a 67 MSPS digital receive signal processor that supports real, dual real, or complex inputs and provides serial or parallel outputs.
The AD6620 from Analog Devices is a digital receiver that combines a frequency translator, two fixed‑coefficient CIC filters and a programmable‑coefficient FIR filter. It accepts 3.3 V LVCMOS inputs and provides both 3.3 V CMOS and 5 V TTL compatible outputs. The device is intended to bridge high‑speed ADCs and general‑purpose DSPs, offering flexible decimation and filtering for a wide range of applications.
The chip is supplied in an 80‑lead PQFP package and operates over an industrial temperature range (‑40 °C to +85 °C). It supports input sample rates up to 67 MSPS and offers programmable decimation factors from 1 to 32, with up to 256 taps in the RAM‑based FIR filter. Multiple AD6620s can be used in parallel for higher tap counts or increased processing bandwidth.
| Supply Voltage (VDD) | 3.0 V – 3.6 V (typ 3.3 V) |
|---|---|
| Operating Temperature Range | ‑40 °C to +85 °C |
| Maximum Input Sample Rate | 67 MSPS |
| Programmable Decimation Rates | 1 to 32 |
| Package | 80‑lead PQFP |
The AD6620 can process input data at up to 67 MSPS.
Both the CIC and RAM‑based FIR filters support programmable decimation factors from 1 to 32.
The device is rated for temperatures from –40 °C to +85 °C.