ADSP-BF524C_15 Datasheet, PDF (12/36 Pages) Analog Devices – Blackfin Embedded Processor with Codec

ADSP-BF522C/ADSP-BF523C/ADSP-BF524C/ADSP-BF525C/ADSP-BF526C/ADSP-BF527C
CODEC PIN DESCRIPTIONS
Table 3 shows the signals added to the ADSP-BF52xC processor
for the embedded codec. Please refer to the published
ADSP-BF52x data sheet for descriptions of other signals for the
processor.
Table 3. Codec Pin Descriptions
Pin Name
Type Function
Codec
CODEC_CLKOUT
O
Codec Clock Output
CODEC_BCLK
I/O Codec Digital Audio Bit Clock
DACDAT
I
Codec Digital Audio Data (DAC) Input
DACLRC
I/O Codec DAC Sample Rate Left/Right Clock
ADCDAT
O
Codec ADC Digital Audio Data Output
ADCLRC
I/O Codec ADC Sample Rate Left/Right Clock
CMODE
I
Codec Control Interface Selection
CSB
I
Codec Chip Select Interface Address Selection
CSDA
I/O Codec Data Input
CSCL
I/O Codec Data Clock
XTI/CODEC_MCLK
I
Codec Crystal Input/ Clock Input
XTO
O
Codec Crystal Output
LHPOUT
O
Codec Left Channel Headphone Output (Analog Output)
RHPOUT
O
Codec Right Channel Headphone Output (Analog Output)
LOUT
O
Codec Left Channel Line Output (Analog Output)
ROUT
O
Codec Right Channel Line Output (Analog Output)
VMID
O
Codec Mid-rail Reference Decoupling Point (Analog Output)
MICBIAS
O
Codec Electret Microphone Bias (Analog Output)
MICIN
I
Codec Microphone Input; (Analog Input, AC Coupled)
RLINEIN
I
Codec Right Channel Line Input (Analog Input, AC Coupled)
LLINEIN
I
Codec Left Channel Line Input (Analog Input, AC Coupled)
AVDD
AGND
P
Codec Analog V_DD
P
Codec Analog Ground
CVDD
HPVDD
HPGND
P
Codec Digital V_DD
P
Codec Analog Headphone V_DD
P
Codec Headphone Ground
1 _{To conserve power, the pull-up/pull-down is only present when the control register interface is active (= 0).}
Pull-Up/Down
None
Internal Pull-down¹
None
Internal Pull-down¹
None
Internal Pull-down¹
Internal Pull-up¹
Internal Pull-up¹
None
None
None
None
None
None
None
None
None
None
None
None
None
N/A
N/A
N/A
N/A
N/A
Rev. A | Page 12 of 36 | March 2010