DS691A3

3

CS4350

TABLE OF CONTENTS

1. PIN DESCRIPTION.................................................................................................................................. 6

2. CHARACTERISTICS AND SPECIFICATIONS....................................................................................... 8

SPECIFIED OPERATING CONDITIONS .................................................................................................... 8

ABSOLUTE MAXIMUM RATINGS............................................................................................................... 8

DAC ANALOG CHARACTERISTICS........................................................................................................... 9

COMBINED INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE............................................ 11

SWITCHING SPECIFICATIONS - SERIAL AUDIO INTERFACE.............................................................. 12

SWITCHING CHARACTERISTICS - CONTROL PORT - I²C FORMAT.................................................... 13

SWITCHING CHARACTERISTICS - CONTROL PORT - SPI FORMAT................................................... 14

DIGITAL CHARACTERISTICS .................................................................................................................. 15

POWER AND THERMAL CHARACTERISTICS........................................................................................ 15

3. TYPICAL CONNECTION DIAGRAM .................................................................................................. 16

4. APPLICATIONS .................................................................................................................................... 17

4.1 Sample Rate Range and Oversampling Mode Detect................................................................... 17

4.1.1 Sample Rate Auto-Detect .................................................................................................... 17

4.2 System Clocking ............................................................................................................................ 17

4.2.1 Recovered Master Clock (RMCK) ........................................................................................ 17

4.3 Digital Interface Format ................................................................................................................. 18

4.3.1 Time-Division Multiplex (TDM) Mode ................................................................................... 19

4.4 De-Emphasis ................................................................................................................................. 20

4.5 Mute Control .................................................................................................................................. 20

4.6 Recommended Power-Up Sequence ............................................................................................ 20

4.6.1 Stand-Alone Mode ............................................................................................................... 20

4.6.2 Control Port Mode ................................................................................................................ 20

4.7 Popguard® Transient Control ........................................................................................................ 21

4.7.1 Power-Up ............................................................................................................................. 21

4.7.2 Power-Down......................................................................................................................... 21

4.7.3 Discharge Time .................................................................................................................... 21

4.8 Analog Output and Filtering ........................................................................................................... 22

4.9 Grounding and Power Supply Arrangements ................................................................................ 22

4.9.1 Capacitor Placement............................................................................................................ 22

5. STAND-ALONE OPERATION............................................................................................................... 23

5.1 Serial Port Format Selection.......................................................................................................... 23

5.2 De-emphasis Control ..................................................................................................................... 23

5.3 Popguard® Transient Control........................................................................................................ 23

6. CONTROL PORT OPERATION ............................................................................................................ 24

6.1 MAP Auto Increment ..................................................................................................................... 24

6.2 I²C Mode ........................................................................................................................................ 24

6.2.1 I²C Write ............................................................................................................................... 24

6.2.2 I²C Read............................................................................................................................... 24

6.3 SPI Mode ....................................................................................................................................... 25

6.3.1 SPI Write .............................................................................................................................. 25

6.3.2 SPI Read.............................................................................................................................. 26

6.4 Memory Address Pointer (MAP) ................................................................................................... 26

6.4.1 INCR (Auto Map Increment Enable) .................................................................................... 26

6.4.2 MAP (Memory Address Pointer) .......................................................................................... 26

7. REGISTER QUICK REFERENCE ......................................................................................................... 27

8. REGISTER DESCRIPTION ................................................................................................................... 28

8.1 Chip ID - Register 01h ................................................................................................................... 28

8.2 Mode Control - Register 02h ......................................................................................................... 28

8.2.1 Digital Interface Format (DIF[2:0]) Bits 6-4 .......................................................................... 28

8.2.2 De-Emphasis Control (DEM[1:0]) Bits 3-2 ........................................................................... 28