IDT821054四通道可编程PCM编解码器的MPI接口
工业温度范围
目录
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针Description...................................................................................................................................................................................................7
功能描述......................................................................................................................................................................................9
2.1 MPI / PCM接口....................................................................................................................................................................................9
2.1.1微处理器接口（ MPI ） ....................................................................................................................................................9
2.1.2 PCM总线....................................................................................................................................................................................10
2.2 DSP Programming...................................................................................................................................................................................11
2.2.1信号Processing.......................................................................................................................................................................11
2.2.2增益Adjustment.........................................................................................................................................................................11
2.2.3阻抗匹配..................................................................................................................................................................11
2.2.4转换混合平衡..................................................................................................................................................................12
2.2.5频率响应Correction................................................................................................................................................12
2.3 SLIC控制............................................................................................................................................................................................12
2.3.1 SI1和SI2.................................................................................................................................................................................12
2.3.2 SB1，SB2和SB3 .....................................................................................................................................................................12
2.3.3 S01和S02 .............................................................................................................................................................................12
2.4硬件环之旅.................................................................................................................................................................................12
2.5中断和中断Enable..................................................................................................................................................................12
2.6防抖过滤器.....................................................................................................................................................................................13
2.7砍刀Clock.........................................................................................................................................................................................13
2.8双音及环Generation..............................................................................................................................................................13
2.9 FSK信号GENERATION...................................................................................................................................................................14
2.10级测量.........................................................................................................................................................................................15
2.11通道掉电/待机Mode......................................................................................................................................................16
2.12掉电/挂起模式...................................................................................................................................................................16
操作IDT821054 ................................................................................................................................................................................17
3.1程序说明........................................................................................................................................................................17
3.1.1命令类型和格式......................................................................................................................................................17
3.1.2解决本地Registers..................................................................................................................................................17
3.1.3应对全球Registers................................................................................................................................................17
3.1.4寻址Coe-RAM...........................................................................................................................................................17
3.1.5寻址FSK-RAM...........................................................................................................................................................18
3.1.6编程实例.............................................................................................................................................................18
本地编程寄存器3.1.6.1示例.................................................................................................................18
规划的全局中3.1.6.2例Registers................................................................................................................18
规划中的3.1.6.3示例Coefficient-RAM..........................................................................................................18
规划中的3.1.6.4示例FSK-RAM....................................................................................................................19
3.2上电顺序................................................................................................................................................................................21
3.3默认状态后， Reset.........................................................................................................................................................................21
3.4寄存器描述..............................................................................................................................................................................22
3.4.1寄存器概览....................................................................................................................................................................22
3.4.2全局寄存器列表..................................................................................................................................................................24
3.4.3局部寄存器列表....................................................................................................................................................................31
绝对最大额定值............................................................................................................................................................................35
建议的直流工作条件.....................................................................................................................................................35
电气特性................................................................................................................................................................................35
6.1数字Interface........................................................................................................................................................................................35
6.2电源Dissipation....................................................................................................................................................................................35
6.3模拟接口......................................................................................................................................................................................36
传输特性.........................................................................................................................................................................37
7.1绝对增益..........................................................................................................................................................................................37
7.2增益跟踪..........................................................................................................................................................................................37
7.3频率响应..............................................................................................................................................................................37
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