CS44600-DQZ CIRRUS [Cirrus Logic], CS44600-DQZ Datasheet - Page 23
CS44600-DQZ
Manufacturer Part Number
CS44600-DQZ
Description
6-Channel Digital Amplifier Controller
Manufacturer
CIRRUS [Cirrus Logic]
Datasheet
1.CS44600-DQZ.pdf
(78 pages)
- Current page: 23 of 78
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DS633PP1
Additional Features
4.3
DAI_MCLK
DAI_LRCK
DAI_SCLK
DAI_SDINx
SYS_CLK
XTO
XTI
•
•
•
•
•
•
•
•
•
Clock Generation
The sources for internal clock generation for the PWM processing are as follows:
•
•
Digital volume control with soft ramp.
Individual channel volume gain, attenuation and mute capability; +24 to -127 dB in 0.25 dB steps.
Master volume attenuation; +24 to -127 dB in 0.25 dB steps.
Peak Detect and Volume Limiter with programmable attack and release rates.
Signal-clipping interrupt indicator.
Contains a two-stage digital output filter for speaker impedance compensation.
Provides 7 programmable GPIO pins with interrupt generation for easily interfacing to a variety of com-
monly available power state parts. Interrupts can be masked.
Selectable over-sample rate for increased audio bandwidth.
Power supply clock output, PS_SYNC, with programmable divider
FsIn Domain:
FsOut Domain:
–
–
–
DAI_MCLK, minimum 128Fs
XTI/XTO (Fundamental or 3
Clock signal on XTI (VDX is used to set logic voltage level)
Digital Audio
Ratio Detect
Input Port
1, 1.5, 2,
3, 4, 6, 8
XTAL /
CLKIN
1,2,4,8
Emphasis
De-
Figure 13. CS44600 Data Flow Diagram (Single Channel Shown)
FsIn FsOut
128Fs
SRC
SRC_MCLK (128Fs)
Compensation
2-pole Load
Filter
2.25
Clock Control
Channel
Volume
rd
overtone crystal), or
1,1.5,
2,4
Volume
Master
(AM_FREQ_HOP)
Σ
AM Freq. Hop
PWM_MCLK
MOD_MCLK
Over Sample
(OSRATE)
mute
DETECT
LIMITER
PEAK
Over Sample
x2
(OSRATE)
Modulator
Multibit
Σ∆
PWM Engine
Feedback
PSR
Delay
Delay
CS44600
PWM_OUT+
PWM_OUT-
23
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