AD9856AST: CMOS 200 MHz Quadrature Digital Upconverter
The AD9856 integrates a high-speed direct-digital synthesizer (DDS), a high-performance, high-speed 12-bit Digital-to-Analog converter (DAC), clock multiplier circuitry, digital filters, and other DSP functions onto a single chip, to form a complete quadrature digital upconverter device. The AD9856 is primarily intended to function as a universal upstream and downstream I/Q modulator for interactive HFC cable network applications, where cost, size, power dissipation, and dynamic performance are critical attributes.
AD9856AST 特点
- Universal Low Cost Modulator Solution for Communications Applications
- DC to 80 MHz Output Bandwidth
- Integrated 12-Bit D/A Converter
- Programmable Sample Rate Interpolation Filter
- Programmable Reference Clock Multiplier
- Internal SIN(x)/x Compensation Filter
- >52 dB SFDR @ 40 MHz AOUT
- +3 V Single Supply Operation
- >48 dB SFDR @ 70 MHz AOUT
- >80 dB Narrowband SFDR @ 70 MHz AOUT
- Space-Saving Surface-Mount Packaging
- Bidirectional Control Bus Interface
AD9856AST 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| AD9856/PCB | 量产 | 评估板 | - | 待定 |
| AD9856AST | 量产 | 48 ld LQFP | 48 | 工业 |
| AD9856ASTZ | 量产 | 48 ld LQFP | 48 | 工业 |
