CM6631A Datasheet, PDF (13/16 Pages) C-Media Electronics – USB 2.0 High-Speed True HD Audio Processor

CM6631A
USB 2.0 High-Speed True HD Audio Processor
87
X2DAC_SCLK
88
X2DAC_SDOUT
89
XMDAC_SDOUT0
93
XMDAC_SCLK
94
XMDAC_LRCK
95
XMDAC_MCLK
63
XMSDA
64
XMSCL
56
XSSDA
57
XSSCL
4
RREF
19
XPWDN
55
XRSTO
96
XSEL_PWR
98
XRST
99
XTEST
90
NC
91
NC
92
NC
DIO
I2S bit clock
Programmable 3.3V bidirectional buffer, pull-down
DO
I2S serial data output for channel 0, 1
Programmable 3.3V output buffer
2-channel I2S DAC_1 Interface (PDMA_A)
DO
I2S serial data output for channel 0, 1
Programmable 3.3V output buffer
DIO
I2S bit clock
Programmable 3.3V bidirectional buffer, pull-down
DIO
I2S left/right clock
Programmable 3.3V bidirectional buffer, pull-down
DO
I2S master clock
Programmable 3.3V output buffer
2-Wire Master Serial Bus (I2C)
DIO
2-wire master serial data
Programmable 3.3V/5V tolerant bidirectional buffer, pull-down
DIO
2-wire master serial clock
Programmable 3.3V/5V tolerant bidirectional buffer, pull-down
2-Wire Slave Serial Bus (I2C)
DIO
2-wire slave serial data
Programmable 3.3V/5V tolerant bidirectional buffer, pull-down
DIO
2-wire slave serial clock
Programmable 3.3V/5V tolerant bidirectional buffer, pull-down
Miscellaneous
AI
Connect external reference resistor (12K1%)
DO
External device power down control signal (default tri-state)
Programmable 3.3V/5V tolerance output buffer
DO
External codec reset (default tri-state)
Programmable 3.3V/5V tolerance output buffer
DI
Self Power used, 1:self power, 0:bus power
Programmable 3.3V input buffer, Schmitt trigger, Pull-down
DI
CM6631A chip reset
DI
Test Mode Select Pin:
H: Test Mode
L: Normal Operation
NC
DI
No connecting
DI
No connecting
DI
No connecting
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