PIN DESCRIPTIONS (CONTINUED)
NUMBER
19
SYMBOL
WCINA
TYPE
I
DESCRIPTION
48kHz word clock for channels 1 and 2. Used only when operating in Multiplex
Mode and when the audio source is not an AES/EBU data stream. This pin
should be grounded when inputting AES/EBU digital audio data or when
operating in Demultiplex Mode.
48kHz word clock for channels 3 and 4. Used only when operating in Multiplex
Mode and when the audio source is not an AES/EBU data stream. This pin
should be grounded when inputting AES/EBU digital audio data or when
operating in Demultiplex Mode.
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 GS9023A.
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 GS9023A.
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 GS9023A.
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 GS9023A.
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 GS9023A.
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 GS9023A.
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 GS9023A.
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 GS9023A.
20
WCINB
I
GS9023A
21
AINA
I
22
AINB
I
24
27, 28, 75
30
PCLK
TEST
SAFA
I
-
I/O
31
SAFB
I/O
32
VFLA
I/O
33
VFLB
I/O
34
UDA
I/O
35
UDB
I/O
36
CSA
I/O
37
CSB
I/O
GENNUM CORPORATION
5 of 37
19795 - 6
GENNUM [ GENNUM CORPORATION ]
