AD9854 is a 300MHz CMOS complete DDS produced by AD company, supporting FSK, BPSK, PSK, chirp, AM and other modulation modes
The AD9854 digital synthesizer is a highly integrated DDS device that provides quadrature I and Q outputs up to 150 MHz and a 300 MHz internal system clock. It features dual 12‑bit DACs, programmable amplitude modulation, on/off output shaped keying, and a 4×‑20× REFCLK multiplier.
The datasheet includes functional block diagrams, pin configurations, absolute maximum ratings, thermal characteristics, and detailed electrical specifications for both the ASVZ and ASTZ variants. It also provides timing characteristics for parallel and serial I/O, as well as recommended evaluation board usage.
| Supply Voltage (VS) | 3.3 V ±5% |
|---|---|
| Operating Temperature Range | -40 °C to +85 °C |
| Maximum Clock Frequency (ASVZ) | 300 MHz |
| DAC Resolution | 12 bits |
| Output Update Speed | 300 MSPS |
The device operates from a 3.3 V supply with a tolerance of ±5 %.
It is specified for industrial temperature operation from –40 °C to +85 °C.
Both I and Q DACs have a 12‑bit resolution.