产品概览
The AD9914BCPZ from Analog Devices is a 3.5 GSPS direct digital synthesizer (DDS) with integrated 12-bit DAC in 88-lead LFCSP package. Featuring a 32-bit frequency tuning word and 14-bit phase adjustment, it delivers sub-Hz frequency resolution for radar, instrumentation, and communication systems.
主要规格
| Sample Rate | 3.5 GSPS |
| DAC Resolution | 12 bits |
| Frequency Tuning Word | 32 bits |
| Phase Adjust | 14 bits |
| Output Frequency | DC to ~1.4 GHz (Nyquist) |
| Spurious-Free Dynamic Range | >50 dBc (typical) |
| Phase Noise | -125 dBc/Hz @ 1kHz offset |
| Interface | Serial (SPI) and Parallel |
| 电源电压 | 1.8V (digital), 3.3V (AVDD) |
| 包装 | 88-lead LFCSP (12x12mm w/ EP) |
| 工作温度 | -40 to +85 C |
特点
- 3.5GSPS sample rate with integrated 12-bit DAC eliminates external DAC
- 32-bit frequency tuning word provides sub-Hz frequency resolution
- Parallel programming port for ultra-fast frequency hopping
- 8 frequency/phase profiles for rapid mode switching
- Internal PLL with programmable VCO multiplier for REFCLK generation
- Synchronizable multi-chip operation for I/Q applications
应用
- Radar and electronic warfare frequency agile synthesis
- Test and measurement signal generation
- Wireless communication LO generation
- Medical imaging and ultrasound beamforming
- Satellite communication frequency conversion