CS5345-DQZ【PDF 12/21 页】IC ADC AUD 104DB 200KHZ 48-LQFP

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Sheet目录1991

8页 9页 10页 11页 [12页]13页 14页 15页 16页

DS658F4

CS5345

TABLE OF CONTENTS

1. PIN DESCRIPTIONS

......................................................................................................................... 5

2. CHARACTERISTICS AND SPECIFICATIONS ...................................................................................... 7

SPECIFIED OPERATING CONDITIONS ............................................................................................. 7

ABSOLUTE MAXIMUM RATINGS .......................................................................................................7

ADC ANALOG CHARACTERISTICS ................................................................................................... 8

ADC ANALOG CHARACTERISTICS ................................................................................................. 10

ADC DIGITAL FILTER CHARACTERISTICS ..................................................................................... 11

PGAOUT ANALOG CHARACTERISTICS .......................................................................................... 12

PGAOUT ANALOG CHARACTERISTICS .......................................................................................... 13

PGAOUT ANALOG CHARACTERISTICS .......................................................................................... 14

DC ELECTRICAL CHARACTERISTICS ............................................................................................. 15

DIGITAL INTERFACE CHARACTERISTICS ...................................................................................... 16

SWITCHING CHARACTERISTICS - SERIAL AUDIO PORT ............................................................. 17

SWITCHING CHARACTERISTICS - CONTROL PORT - IC FORMAT ............................................ 20

SWITCHING CHARACTERISTICS - CONTROL PORT - SPI FORMAT ........................................... 21

3. TYPICAL CONNECTION DIAGRAM ................................................................................................... 22

4. APPLICATIONS ................................................................................................................................... 23

4.1 Recommended Power-Up Sequence ............................................................................................. 23

4.2 System Clocking ............................................................................................................................. 23

4.2.1 Master Clock ......................................................................................................................... 23

4.2.2 Master Mode ......................................................................................................................... 24

4.2.3 Slave Mode ........................................................................................................................... 24

4.3 High-Pass Filter and DC Offset Calibration .................................................................................... 24

4.4 Analog Input Multiplexer, PGA, and Mic Gain ................................................................................26

4.5 Input Connections ........................................................................................................................... 26

4.6 PGA Auxiliary Analog Output ......................................................................................................... 26

4.7 Control Port Description and Timing ............................................................................................... 27

4.7.1 SPI Mode ............................................................................................................................... 27

4.7.2 IC Mode ................................................................................................................................ 27

4.8 Interrupts and Overflow .................................................................................................................. 29

4.9 Reset .............................................................................................................................................. 29

4.10 Synchronization of Multiple Devices ............................................................................................. 29

4.11 Grounding and Power Supply Decoupling .................................................................................... 29

5. REGISTER QUICK REFERENCE ........................................................................................................ 31

6. REGISTER DESCRIPTION .................................................................................................................. 32

6.1 Chip ID - Register 01h .................................................................................................................... 32

6.2 Power Control - Address 02h ......................................................................................................... 32

6.2.1 Freeze (Bit 7) ......................................................................................................................... 32

6.2.2 Power-Down MIC (Bit 3) ........................................................................................................ 32

6.2.3 Power-Down ADC (Bit 2) ....................................................................................................... 32

6.2.4 Power-Down Device (Bit 0) ................................................................................................... 32

6.3 ADC Control - Address 04h ............................................................................................................ 33

6.3.1 Functional Mode (Bits 7:6) .................................................................................................... 33

6.3.2 Digital Interface Format (Bit 4) .............................................................................................. 33

6.3.3 Mute (Bit 2) ............................................................................................................................ 33

6.3.4 High-Pass Filter Freeze (Bit 1) .............................................................................................. 33

6.3.5 Master / Slave Mode (Bit 0) ................................................................................................... 33

6.4 MCLK Frequency - Address 05h .................................................................................................... 34

6.4.1 Master Clock Dividers (Bits 6:4) ............................................................................................ 34

6.5 PGAOut Control - Address 06h ...................................................................................................... 34

6.5.1 PGAOut Source Select (Bit 6) ............................................................................................... 34

6.6 Channel B PGA Control - Address 07h .......................................................................................... 34

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