CS44600
TABLE OF CONTENTS
1. CHARACTERISTICS AND SPECIFICATIONS ........................................................................ 8
SPECIFIED OPERATING CONDITIONS ...................................................................................... 8
ABSOLUTE MAXIMUM RATINGS ................................................................................................. 8
DC ELECTRICAL CHARACTERISTICS ........................................................................................ 9
DIGITAL INTERFACE CHARACTERISTICS ................................................................................. 9
PWM OUTPUT PERFORMANCE CHARACTERISTICS ............................................................. 10
PWM FILTER CHARACTERISTICS ............................................................................................ 11
SWITCHING CHARACTERISTICS - XTI ..................................................................................... 11
SWITCHING CHARACTERISTICS - SYS_CLK .......................................................................... 12
SWITCHING CHARACTERISTICS - PWMOUTA1-B3 ................................................................ 12
SWITCHING CHARACTERISTICS - PS_SYNC .......................................................................... 12
SWITCHING CHARACTERISTICS - DAI INTERFACE ............................................................... 13
SWITCHING CHARACTERISTICS - CONTROL PORT - I²C FORMAT ...................................... 14
SWITCHING CHARACTERISTICS - CONTROL PORT - SPI FORMAT ..................................... 15
2. PIN DESCRIPTIONS .............................................................................................................. 16
2.1 I/O Pin Characteristics ..................................................................................................... 19
3. TYPICAL CONNECTION DIAGRAMS ................................................................................... 20
4. APPLICATIONS ..................................................................................................................... 22
4.1 Overview .......................................................................................................................... 22
4.2 Feature Set Summary ..................................................................................................... 22
4.3 Clock Generation ............................................................................................................. 23
4.3.1 FsIn Domain Clocking ......................................................................................... 24
4.3.2 FsOut Domain Clocking ...................................................................................... 24
4.4 FsIn Clock Domain Modules ............................................................................................ 26
4.4.1 Digital Audio Input Port ....................................................................................... 26
4.4.2 Auto Rate Detect ................................................................................................. 30
4.4.3 De-Emphasis ...................................................................................................... 30
4.5 FsOut Clock Domain Modules ......................................................................................... 31
4.5.1 Sample Rate Converter ...................................................................................... 31
4.5.2 Load Compensation Filter ................................................................................... 31
4.5.3 Digital Volume and Mute Control ........................................................................ 31
4.5.4 Peak Detect / Limiter ........................................................................................... 32
4.5.5 PWM Engines ..................................................................................................... 32
4.5.6 Interpolation Filter ............................................................................................... 33
4.5.7 Quantizer ............................................................................................................ 33
4.5.8 Modulator ............................................................................................................ 33
4.5.9 PWM Outputs ...................................................................................................... 33
4.5.10 Power Supply Rejection (PSR) Real-Time Feedback ....................................... 34
4.6 Control Port Description and Timing ................................................................................ 35
4.6.1 SPI Mode ............................................................................................................ 35
4.6.2 I²C Mode ............................................................................................................. 36
4.6.3 GPIOs ................................................................................................................. 37
4.6.4 Host Interrupt ...................................................................................................... 37
5. POWER SUPPLY, GROUNDING, AND PCB LAYOUT ......................................................... 38
5.1 Reset and Power-Up ....................................................................................................... 41
5.1.1 PWM PopGuard® Transient Control ................................................................... 41
5.1.2 Recommended Power-Up Sequence ................................................................. 41
5.1.3 Recommended PSR Calibration Sequence ....................................................... 42
5.1.4 Recommended Power-Down Sequence ............................................................. 43
6. REGISTER QUICK REFERENCE .......................................................................................... 44
7. REGISTER DESCRIPTION .................................................................................................... 48
7.1 Memory Address Pointer (MAP) ...................................................................................... 48
DS633PP1
3
CIRRUS [ CIRRUS LOGIC ]
