The document provides information about the features and characteristics of the broadband modem mixed-signal front end AD9865 Rev. A.
The AD9865 is a mixed‑signal front‑end (MxFE) IC designed for broadband modem transceiver applications, offering both transmit and receive paths with up to 80 MSPS data rates. It integrates a 10‑bit DAC, a 10‑bit ADC, programmable gain amplifiers, and an on‑chip PLL clock multiplier, supporting half‑ and full‑duplex operation.
Key specifications include a 200 MSPS DAC update rate, 23 dBm line driver, programmable RxPGA gain from –12 dB to +48 dB, and flexible digital interfaces such as SPI and ADIO. The device is supplied in a 64‑lead LFCSP package and operates over a –40 °C to +85 °C temperature range.
| DAC Resolution | 10 bits |
|---|---|
| DAC Update Rate | 200 MSPS |
| Full‑Scale Output Current (IOUTP_FS) | 25 mA |
| Tx Gain Control Range | 0 dB to 75 dB |
| ADC Resolution | 10 bits |
| Total Supply Current (IS_TOTAL) | 406 – 475 mA |
| Operating Temperature Range | -40 °C to +85 °C |
The DAC update rate is 200 MSPS.
At a RxPGA gain of +48 dB, the input voltage span is 8 mV p‑p.
The total supply current ranges from 406 mA to 475 mA.
The AD9865 is offered in a 64‑lead LFCSP (CP‑64‑3) package.