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CS4222-DS 参数 Datasheet PDF下载

CS4222-DS图片预览

型号：	CS4222-DS
PDF下载：	下载PDF文件查看货源
内容描述：	20位立体声音频编解码器与音量控制 [20-Bit Stereo Audio Codec with Volume Control]
分类和应用：	解码器编解码器商用集成电路光电二极管
文件页数/大小：	29 页 / 616 K
品牌：	CIRRUS [ CIRRUS LOGIC ]

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CS4222

4.6 Control Port Interface ...................................................................................................... 21

4.6.1 SPI Mode ............................................................................................................ 21

2

C Mode ............................................................................................................. 22

4.6.3 Control Port Bit Definitions .................................................................................. 22

4.7 De-Emphasis ................................................................................................................... 22

4.8 Power-up / Reset / Power Down / Calibration ................................................................. 23

4.9 Power Supply, Layout and Grounding ............................................................................. 23

4.10 ADC and DAC Filter Response Plots ............................................................................ 24

5. REGISTER DESCRIPTIONS .............................................................. 25

5. Memory Address Pointer (MAP) ......................................................................................... 25

5. Reserved Byte (0)............................................................................................................... 25

5. ADC Control Byte (1) .......................................................................................................... 25

5. DAC Control Byte (2) .......................................................................................................... 26

5. Output Attenuator Data Byte (3, 4) ..................................................................................... 26

5. DSP Port Mode Byte (5) ..................................................................................................... 27

5. Converter Status Report Byte (Read Only) (6) ................................................................... 27

6. PARAMETER DEFINITIONS .............................................................. 28

7. PACKAGE DIMENSIONS ................................................................... 29

LIST OF FIGURES

Figure 1. Serial Audio Interface Timing........................................................................................... 9

Figure 2. Control Port Timing - SPI Mode ..................................................................................... 10

Figure 3. Control Port Timing - I2C Mode ..................................................................................... 11

Figure 4. CS4222 Recommended Connection Diagram............................................................... 13

Figure 5. Optional Line Input Buffer .............................................................................................. 15

Figure 6. Full Scale Input/Output Voltage ..................................................................................... 15

Figure 7. 2- and 3-Pole Butterworth Filters ................................................................................... 17

Figure 8. Hybrid Analog/Digital Attenuation .................................................................................. 18

Figure 9. Audio DSP Data Input Formats...................................................................................... 20

Figure 10. Audio DSP Data Output Formats................................................................................. 20

Figure 11. Control Port Timing, SPI mode .................................................................................... 21

Figure 12. Control Port Timing, I

2

C mode ..................................................................................... 22

Figure 13. De-emphasis Curve. .................................................................................................... 22

Figure 14. ADC Filter Response ................................................................................................... 24

Figure 15. ADC Passband Ripplee ............................................................................................... 24

Figure 16. ADC Transition Band ................................................................................................... 24

Figure 17. DAC Filter Response ................................................................................................... 24

Figure 18. DAC Passband Ripple ................................................................................................. 24

Figure 19. DAC Transition Band ................................................................................................... 24

LIST OF TABLES

Table 1. Control Port vs. Stand-Alone Mode ....................................................................................... 14

Table 2. High Pass Filter Characteristics ............................................................................................ 16

Table 3. Common Clock Frequencies ................................................................................................. 19

Table 4. De-Emphasis filter control ..................................................................................................... 22

DS236F1

3

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