Analog Devices AD9953
1.8V CMOS Direct Digital Synthesizer
| Part No. | AD9953 |
|---|---|
| Datasheet | AD9953 Download |
| Manufacturer |  Analog Devices |
| Description | 1.8V CMOS Direct Digital Synthesizer |
| Buy | Stock & Price |
FEATURES
400 MSPS internal clock speed Integrated 14-bit DAC 32-bit tuning word 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 400 MSPS, 14-Bit, 1.8 V CMOS Direct Digital Synthesizer AD9953 PLL REFCLK multiplier (4× to 20×) Internal oscillator, can be driven by a single crystal Phase modulation capability Multichip synchronizationAPPLICATIONS
Agile VHF/UHF LO frequency synthesis FM chirp source for radar and scanning systems Nonlinear-shaped PSK/FSK modulator Test and measurement equipment FUNCTIONAL BLOCK DIAGRAM I/O UPDATE SYNC_CLK REFCLK REFCLK 1024 × 32 STATIC RAM RAM DATA 32 M U X DDS CORE PHASE ACCUMULATOR Z–1 PHASE OFFSET 19 COS(X) AD9953 14 DAC Z–1 32 3 32 10 M0 U X SYNC OSCILLATOR/BUFFER ENABLE 4×–20× CLOCK
