CS4349
TABLE OF CONTENTS
1. PIN DESCRIPTION.................................................................................................................................. 6
2. CHARACTERISTICS AND SPECIFICATIONS....................................................................................... 8
RECOMMENDED OPERATING CONDITIONS .......................................................................................... 8
ABSOLUTE MAXIMUM RATINGS............................................................................................................... 8
DAC ANALOG CHARACTERISTICS - COMMERCIAL (-CZZ) ................................................................... 9
DAC ANALOG CHARACTERISTICS - AUTOMOTIVE (-DZZ).................................................................. 10
COMBINED INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE............................................ 12
SWITCHING SPECIFICATIONS - SERIAL AUDIO INTERFACE.............................................................. 13
SWITCHING CHARACTERISTICS - CONTROL PORT - I²C FORMAT.................................................... 14
SWITCHING CHARACTERISTICS - CONTROL PORT - SPI FORMAT................................................... 15
DIGITAL CHARACTERISTICS .................................................................................................................. 16
POWER AND THERMAL CHARACTERISTICS........................................................................................ 16
3. TYPICAL CONNECTION DIAGRAM .................................................................................................. 17
4. APPLICATIONS .................................................................................................................................... 18
4.1 Sample Rate Range and Oversampling Mode Detect................................................................... 18
4.1.1 Sample Rate Auto-Detect .................................................................................................... 18
4.2 System Clocking............................................................................................................................ 18
4.3 Digital Interface Format ................................................................................................................. 19
4.3.1 Time-Division Multiplex (TDM) Mode................................................................................... 20
4.4 De-Emphasis ................................................................................................................................. 21
4.5 Mute Control.................................................................................................................................. 21
4.6 Recommended Power-Up Sequence ............................................................................................ 21
4.6.1 Stand-Alone Mode ............................................................................................................... 21
4.6.2 Control Port Mode................................................................................................................ 22
4.7 Popguard Transient Control .......................................................................................................... 22
4.7.1 Power-Up ............................................................................................................................. 22
4.7.2 Power-Down......................................................................................................................... 22
4.7.3 Discharge Time.................................................................................................................... 22
4.8 Analog Output and Filtering........................................................................................................... 23
4.9 Grounding and Power Supply Arrangements ................................................................................ 23
4.9.1 Capacitor Placement............................................................................................................ 23
5. STAND-ALONE OPERATION............................................................................................................... 24
5.1 Serial Port Format Selection.......................................................................................................... 24
5.2 De-Emphasis Control .................................................................................................................... 24
5.3 Popguard Transient Control .......................................................................................................... 24
6. CONTROL PORT OPERATION............................................................................................................ 25
6.1 MAP Auto Increment ..................................................................................................................... 25
6.2 I²C Mode........................................................................................................................................ 25
6.2.1 I²C Write............................................................................................................................... 25
6.2.2 I²C Read............................................................................................................................... 25
6.3 SPI Mode....................................................................................................................................... 26
6.3.1 SPI Write.............................................................................................................................. 26
6.3.2 SPI Read.............................................................................................................................. 27
6.4 Memory Address Pointer (MAP) ................................................................................................... 27
6.4.1 INCR (Auto Map Increment Enable) .................................................................................... 27
6.4.2 MAP (Memory Address Pointer) .......................................................................................... 27
7. REGISTER QUICK REFERENCE......................................................................................................... 28
8. REGISTER DESCRIPTION ................................................................................................................... 29
8.1 Device and Revision ID - Register 01h.......................................................................................... 29
8.2 Mode Control - Register 02h ......................................................................................................... 29
8.2.1 Digital Interface Format (DIF[2:0]) Bits 6-4 .......................................................................... 29
8.2.2 De-Emphasis Control (DEM[1:0]) Bits 3-2 ........................................................................... 30
DS782F1
3
CIRRUS [ CIRRUS LOGIC ]
