AD9952 is a direct digital synthesizer (DDS) featuring a 14-bit DAC, 32-bit tuning word, 400 MSPS internal clock speed, Phase noise ≤ −120 dBc/Hz @ 1 kHz offset (DAC output), Excellent dynamic performance >80 dB SFDR @ 160 MHz (±100 kHz offset), AOUT Serial I/O control, 1.8 V power supply, Software and hardware controlled power-down, 48-lead TQFP_EP package, Support for 5 V input levels on most digital inputs, PLL REFCLK multiplier (4× to 20×), Internal oscillator, Phase modulation capability, Multichip synchronization, High speed comparator (200 MHz toggle rate) and more.
The AD9952 is a 400 MSPS, 14‑bit direct digital synthesizer (DDS) that provides agile frequency synthesis, programmable clock generation, and high‑performance test and measurement capabilities. It operates over an extended industrial temperature range and supports multichip synchronization.
The document includes feature highlights, electrical specifications, absolute maximum ratings, pin configuration, functional block diagram, theory of operation, power‑down functions, layout considerations, ordering information, and suggested application circuits.
| Maximum internal clock speed | 400 MSPS |
|---|---|
| DAC resolution | 14 bits |
| Core supply voltage | AVDD, DVDD = 1.8 V ±5% |
| Operating temperature range | -40°C to +105°C |
| Maximum junction temperature | 150°C |
The AD9952 supports a maximum internal clock speed of 400 MSPS.
The core supplies AVDD and DVDD are 1.8 V ±5%, while the I/O supply DVDD_I/O can be 1.8 V or 3.3 V.
It is specified to operate from –40 °C up to +105 °C.
The device’s maximum junction temperature is 150 °C.