PLL频率合成器 PLL Frequency Synthesizer
Product Details
The ADF4108 frequency synthesizer can be used to implement local oscillators in the up-conversion and down-conversion sections of wireless receivers and transmitters. It consists of a low-noise digital PFD phase frequency detector, a precision charge pump, a programmable reference divider, programmable A and B counters, and a dual-modulus prescaler P/P + 1. The A 6-bit and B 13-bit counters, in conjunction with the dual-modulus prescaler P/P + 1, implement an N divider N = BP + A. In addition, the 14-bit reference counter R counter, allows selectable REFIN frequencies at the PFD input. A complete PLL phase-locked loop can be implemented if the synthesizer is used with an external loop filter and VCO voltage controlled oscillator. Its very high bandwidth 8GHz means that frequency doublers or prescalers can be eliminated in many high frequency systems, simplifying system architecture and reducing cost.
**Applications**
### Features and Benefits
型号 | 品牌 | 下载 |
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