
Copyright
Cirrus Logic, Inc. 2005
(All Rights Reserved)
http://www.cirrus.com
Preliminary Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
8-Channel Digital Amplifier Controller
Features
!
> 100 dB Dynamic Range - System Level
!
< 0.03% THD+N @ 1 W - System Level
!
32 kHz to 192 kHz Sample Rates
!
Internal Oscillator Circuit Supports 24.576 MHz
to 54 MHz Crystals
!
Integrated Sample Rate Converter (SRC)
–
Eliminates Clock Jitter Effects
–
Input Sample Rate Independent Operation
!
Power Supply Rejection Realtime Feedback
!
Spread Spectrum Modulation - Reduces
Modulation Energy
!
PWM PopGuard
for Single-Ended Mode
!
Eliminates AM Frequency Interference
!
Programmable Load Compensation Filters
!
Support for up to 40 kHz Audio Bandwidth
!
Digital Volume Control with Soft Ramp
–
+24 to -127 dB in 0.25 dB Steps
!
Per Channel Programmable Peak Detect and
Limiter
!
SPI and I2C Host Control Interfaces
!
Separate 2.5 V to 5.0 V Serial Port and Host
Control Port Supplies
DAI
Serial
Port
X
PWMOUTA1+
PWMOUTA1-
Power
Supply
Rejection
PWMOUTB1+
PWMOUTB1-
SPI/I
2
C Host
Control Port
SCL/CCLK
AD1/CDIN
AD0/CS
RST
INT
PSR_SYNC
PSR_DATA
PWM
Backend
Control/
Status
GPIO4
GPIO5
GPIO6
GPIO0
GPIO1
GPIO2
GPIO3
XTO
XTI
PWMOUTA2+
PWMOUTA2-
PWMOUTB2+
PWMOUTB2-
PWMOUTA3+
PWMOUTA3-
PWMOUTB3+
PWMOUTB3-
MUTE
PWMOUTA4+
PWMOUTA4-
PWMOUTB4+
PWMOUTB4-
DAI_MCLK
DAI_SCLK
DAI_LRCK
DAI_SDIN1
DAI_SDIN2
DAI_SDIN3
DAI_SDIN4
Volume
/ Limiter
Multibit
Σ
Modulator
PWM
Conversion
PWM
Conversion
PWM
Conversion
PWM
Conversion
Volume
/ Limiter
Multibit
Σ
Modulator
Volume
/ Limiter
Multibit
Σ
Modulator
Volume
/ Limiter
Multibit
Σ
Modulator
PWM
Clock
Control
Auto Fs
Detect
PSR_MCLK
PSR_RESET
PS_SYNC
SRC
SYS_CLK
SDA/CDOUT
MAY '05
DS632PP1
CS44800