AD9879 is a mixed-signal front end from Analog Devices that is suitable for DOCSIS, EURO-DOCSIS, DVB and DAVIC-compliant set-top box and cable modem applications.
The AD9879 is a single‑supply mixed‑signal front‑end designed for set‑top box, cable‑modem, and other digital‑communication applications. It integrates transmit‑path interpolation, a quadrature digital upconverter, and multiple ADCs (12‑bit, 10‑bit, and dual 7‑bit) with all required clocks generated internally.
Key features include a 12‑bit Tx DAC capable of 232 MSPS, programmable carrier frequencies up to 65 MHz, and extensive gain‑control options. The device is supplied in a 100‑lead MQFP and operates over a commercial temperature range of –40 °C to +85 °C.
| Supply Voltage (Vdd) | 3.3 V ±5% |
|---|---|
| Operating Temperature Range | –40 °C to +85 °C |
It is specified for commercial temperatures from –40 °C to +85 °C.