AD9953: 400 MSPS 14-Bit DAC 1.8 V CMOS Direct Digital Synthesizer
The AD9953 is a direct digital synthesizer (DDS) featuring a 14-bit DAC operating up to 400 MSPS. The AD9953 uses advanced DDS technology, coupled with an internal high speed, high performance DAC to form a digitally programmable, complete high frequency synthesizer capable of generating a frequency-agile analog output sinusoidal waveform at up to 200 MHz. The AD9953 includes an integrated 1024 × 32 static RAM to support flexible frequency sweep capability in several modes. The AD9953 is designed to provide fast frequency hopping and fine tuning resolution (32-bit frequency tuning word). The frequency tuning and control words are loaded into the AD9953 via a serial I/O port.
The AD9953 is specified to operate over the extended industrial temperature range of –40°C to +105°C.
产品应用领域 Applications
- Agile VHF/UHF LO frequency synthesis
- FM chirp source for radar and scanning systems
- Nonlinear-shaped PSK/FSK modulator
- Test and measurement equipment
AD9953 特点
- 400 MSPS Internal Clock Speed
- Integrated 14-Bit D/A Converter
- 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
- PLL REFCLK multiplier (4× to 20×)
- See data sheet for additional features
AD9953 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| AD9953YSV | 量产 | 48 ld TQFP-EP (2.0mm^2 exposed pad on bottom) | 48 | 工业 |
| AD9953YSVZ | 量产 | 48 ld TQFP-EP (2.0mm^2 exposed pad on bottom) | 48 | 工业 |
| AD9953YSVZ-REEL7 | 量产 | 48 ld TQFP-EP (2.0mm^2 exposed pad on bottom) | 48 | 工业 |