Cirrus Logic CS4350 - Manual (Page 3)

DS691F2 3
CS4350
TABLE OF CONTENTS
1 PIN DESCRIPTION................................................................................................................................... 6
2 CHARACTERISTICS AND SPECIFICATIONS........................................................................................ 7
2.1 Recommended Operating Conditions ............................................................................................. 7
2.2 Absolute Maximum Ratings............................................................................................................. 7
2.3 DAC Analog Characteristics - Commercial (-CZZ) .......................................................................... 8
2.4 DAC Analog Characteristics - Automotive (-DZZ) ........................................................................... 9
2.5 Combined Interpolation and On-Chip Analog Filter Response...................................................... 11
2.6 Switching Specifications - Serial Audio Interface........................................................................... 12
2.7 Switching Characteristics - Control Port - I²C Format.................................................................... 13
2.8 Switching Characteristics - Control Port - SPI Format................................................................... 14
2.9 Digital Characteristics .................................................................................................................... 15
2.10 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 ................................................................................................................ 21
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 ............................................................................................................. 23
6.1 MAP Auto Increment ..................................................................................................................... 23
6.2 I²C Mode........................................................................................................................................ 23
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.............................................................................................................................. 25
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 Device and Revision ID - Register 01h.......................................................................................... 28
8.2 Mode Control - Register 02h ......................................................................................................... 28
8.2.1 Digital Interface Format (DIF[2:0]) Bits 6-4 .......................................................................... 28