Pin
Name
Function
Description
22
CH0_REF2
Output, tristate
Channel 0 reference 2 output
23
CH0_REF1
Output, tristate
Channel 0 reference 1 output
24
C0GND
-
Ground
25
C0P3V3
-
3.3 V I/O supply (quiet)
26
CH0_REF0
Output, tristate
Channel 0 reference 0 output
27
C0P1V8
-
1.8 V core supply (quiet)
28
P1V8
-
1.8 V core supply
29
GND
-
Ground
30
P3V3
-
3.3 V I/O supply
31
CH3_PWM2
-
Output Channel 3 high side drive
32
CH3_PWM1
-
Bidirectional, pull-down Channel 3 high
side drive or channel 2/3 PWM sense
control
33
CH3_PWM0
-
Output Channel 3 low side drive
34
CH2_PWM2
Output
Channel 2 high side drive
35
CH2_PWM1
Bidirectional, pull-down
Channel 2 high side drive or channel 2/3
PWM sense control
36
CH2_PWM0
Output
Channel 2 low side drive
37
GND
-
Ground
38
P3V3
-
3.3 V I/O supply
39
CH1_PWM2
Output
Channel 1 high side drive
40
CH1_PWM1
Bidirectional, pull-down
Channel 1 high side drive or channel 0/1
PWM sense control
41
CH1_PWM0
Output
Channel 1 low side drive
42
CH0_PWM2
Output
Channel 0 high side drive
43
CH0_PWM1
Bidirectional, pull-down
Channel 0 high side drive or channel 0/1
PWM sense control
Production Information
© 2012 Cambridge Silicon Radio Limited
This material is subject to CSR's non-disclosure agreement.
Page 16 of 181
CS-225959-DSP6
www.csr.com
CSRA6600
/
CSRA
6601
Direct Digital Feedback
A
m
plifier
Data Sheet
Pin
Name
Function
Description
44
CH0_PWM0
Output
Channel 0 low side drive
45
P3V3
-
3.3 V I/O supply
46
GND
-
Ground
47
P1V8
-
1.8 V core supply
48
CH_0_1_AUDIO_SCK
Input, pull-down
Channels 0, 1 audio input bit clock
49
CH_0_1_AUDIO_SD
Input, pull-down
Channels 0, 1 audio input data
50
CH_0_1_AUDIO_WS
Input, pull-down
Channels 0, 1 audio input word clock
51
CH_2_3_AUDIO_SCK
Input, pull-down
Channels 2, 3 audio input bit clock
52
CH_2_3_AUDIO_SD
Input, pull-down
Channels 2, 3 audio input data
53
CH_2_3_AUDIO_WS
Input, pull-down
Channels 2, 3 audio input word clock
54
PWM_MODE
Input, pull-down
2 wire vs 3 wire PWM mode control
55
GPIO_0
Bidirectional, pull-down
GPIO
56
GPIO_1
Bidirectional, pull-down
GPIO
57
P3V3
-
3.3 V I/O supply
58
GND
-
Ground
59
P1V8
-
1.8 V core supply
60
GPIO_2
Bidirectional, pull-down
GPIO
61
INTERRUPT
Output
System interrupt
62
BRIDGE_ON
Input, pull-down
Bridge on/off control
63
RESET_BAR
Input, pull-up
Global reset
64
MCK_SEL
Input, pull-down
Master clock circuit select
65
GPIO_3
Bidirectional, pull-down
GPIO
66
GND
-
Ground
67
P3V3
-
3.3 V I/O supply
68
GPIO_4
Bidirectional, pull-down
GPIO
Production Information
© 2012 Cambridge Silicon Radio Limited
This material is subject to CSR's non-disclosure agreement.
Page 17 of 181
CS-225959-DSP6
www.csr.com
CSRA6600
/
CSRA
6601
Direct Digital Feedback
A
m
plifier
Data Sheet
70
