论文部分内容阅读
AD662 2四通道TSP设计用来连接DSP和高速DAC。其内部每个滤波器都包含大范围内插因子 ,使AD662 2可以被用来在同一个高速采样流中实现窄带或宽带载波。高分辨率的数控振荡器保证频率规划的灵活性并支持数字 /模拟空中接口。基于RAM的结构使重新配置和多模式应用易于实现。同时采用AD662 2中的 4个TSP传输 3.84Mbit/s的数据 ,很好地满足了WCDMA系统时钟要求 ;整个系统的主时钟最高到 75Mbit/s。
The AD662 2 quad TSP is designed to interface with DSPs and high-speed DACs. Each of its internal filters contains a large range of interpolation factors that allow the AD662 2 to be used to implement narrowband or wideband carriers in the same high-speed sample stream. High-resolution numerically controlled oscillator ensures frequency planning flexibility and supports digital / analogue air interface. RAM-based architecture makes reconfiguration and multi-mode applications easy to implement. At the same time using the four TSP AD662 2 transmission 3.84Mbit / s data, well to meet the WCDMA system clock requirements; the main clock of the entire system up to 75Mbit / s.