gs9023-cfy ETC-unknow, gs9023-cfy Datasheet - Page 4

• Manufacturer Part Number: gs9023-cfy
• Description: Embedded Audio Codec
• Manufacturer: ETC-unknow

PIN DESCRIPTIONS (Continued)
GENNUM CORPORATION
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27, 28, 75
30
31
32
33
34
35
36
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38
39, 51, 67, 76
NUMBER
SYMBOL
AUXEN
VDDIO
PCLK
AINA
AINB
SAFA
SAFB
VFLA
VFLB
TEST
UDA
UDB
CSA
CSB
TYPE
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I
I
I
-
Audio signal input for channels 1 and 2. AES/EBU digital audio data is bi-phase
mark encoded. For all non-AES/EBU input modes, bi-phase mark encoding is not
required.
Audio signal input for channels 3 and 4. AES/EBU digital audio data is bi-phase
mark encoded. For all non-AES/EBU input modes, bi-phase mark encoding is not
required.
Video clock signal input.
Connect to ground.
Start of audio frame indicator for channels 1 and 2. Valid only for non-AES/EBU
audio formats. This pin should be grounded when inputting AES/EBU audio data.
SAFA is HIGH for audio frame 0 and LOW for all other audio frames. In Multiplex
Mode, this pin is an input and is supplied by the user. In Demultiplex Mode, this
pin is an output and is generated by the GS9023.
Start of audio frame indicator for channels 3 and 4. Valid only for non-AES/EBU
audio formats. This pin should be grounded when inputting AES/EBU audio data.
SAFB is set to HIGH for audio frame 0 and LOW for all other audio frames. In
Multiplex Mode, this pin is an input and is supplied by the user. In Demultiplex
Mode, this pin is an output and is generated by the GS9023.
Validity flag for channels 1 and 2. Valid only for non-AES/EBU audio formats. This
pin should be grounded when inputting AES/EBU audio data. VFLA is HIGH
when audio is invalid and LOW when audio is valid. In Multiplex Mode, this pin is
an input and is supplied by the user. In Demultiplex Mode, this pin is an output
and is generated by the GS9023.
Validity flag for channels 3 and 4. Valid only for non-AES/EBU audio formats. This
pin should be grounded when inputting AES/EBU audio data. VFLB is HIGH
when audio is invalid and LOW when audio is valid. In Multiplex Mode, this pin is
an input and is supplied by the user. In Demultiplex Mode, this pin is an output
and is generated by the GS9023.
User data for channels 1 and 2. Valid only for non-AES/EBU audio formats. This
pin should be grounded when inputting AES/EBU audio data. In Multiplex Mode,
this pin is an input and is supplied by the user. In Demultiplex Mode, this pin is
an output and is generated by the GS9023.
User data for channels 3 and 4. Valid only for non-AES/EBU audio formats. This
pin should be grounded when inputting AES/EBU audio data. In Multiplex Mode,
this pin is an input and is supplied by the user. In Demultiplex Mode, this pin is
an output and is generated by the GS9023.
Channel status for channels 1 and 2. Valid only for non-AES/EBU audio formats.
This pin should be grounded when inputting AES/EBU audio data. In Multiplex
Mode, this pin is an input and is supplied by the user. In Demultiplex Mode, this
pin is an output and is generated by the GS9023.
Channel status for channels 3 and 4. Valid only for non-AES/EBU audio formats.
This pin should be grounded when inputting AES/EBU audio data. In Multiplex
Mode, this pin is an input and is supplied by the user. In Demultiplex Mode, this
pin is an output and is generated by the GS9023.
Extended audio enable. When HIGH, the GS9023 processes 24-bit audio
samples. When LOW, the GS9023 processes 20-bit samples. In Multiplex Mode,
this pin is an input and is supplied by the user. In Demultiplex Mode, this pin is
an output and is generated by the GS9023.
+3.3V or +5V power supply pins for device I/Os. In order for device I/O to be +5V
tolerant VDDIO must be +5V. Device I/O are not +5V tolerant if VDDIO is +3.3V.
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DESCRIPTION
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