Pioneer PRA-BD11 Service Manual page 80

1
Pin Descriptions
NUMBER
A
19
20
21
B
22
24
27, 28, 75
30
C
31
32
D
33
34
35
E
36
37
F
80
1
2
SYMBOL TYPE
WCINA I 48kHz word clock for channe ls 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 g rounded when inputting AES/EBU digital audio data or when
operating in Demultiplex Mode.
WCINB I 48kHz word clock for channe ls 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 g rounded when inputting AES/EBU digital audio data or when
operating in Demultiplex Mode.
AINA I Audio sig nal input for channels 1 and 2. AES/EBU digital audio data is bi-p hase
mark encoded . For all non-AES/EBU input modes, bi-phase mark encoding is not
required.
AINB I Audio sig nal input for channels 3 and 4. AES/EBU digital audio data is bi-p hase
mark encoded . For all non-AES/EBU input modes, bi-phase mark encoding is not
required.
PCLK I Video clock signal input.
TEST - Connect to ground.
SAFA I/O Start of audio frame indicator for channels 1 an d 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 Mod e, this
pin is an outp ut and is generated b y the GS9023A.
SAFB I/O Start of audio frame indicator for channels 3 an d 4. Valid only for non-AES/EBU
audio formats. This pin should b e 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 supp lied by the user. In Demultiplex
Mode, this pin is an outp ut and is g enerated by the GS9023A.
VFLA I/O Validity flag for channels 1 and 2. Valid only for non-AES/EBU audio formats. This
pin should be g rounded when inputting AES/EBU audio data . VFLA is HIGH
when audio is invalid a nd LOW when audio is valid. In Multiplex Mode, this pin is
an input and is supplied by the user . In Demultiplex Mod e, this pin is an output
and is generated b y the GS9023A.
VFLB I/O Validity flag for channels 3 and 4. Valid only for non-AES/EBU audio formats. This
pin should be g rounded when inputting AES/EBU audio data . VFLB is HIGH
when audio is invalid a nd LOW when audio is valid. In Multiplex Mode, this pin is
an input and is supplied by the user . In Demultiplex Mode, this p in is an output
and is generated b y the GS9023A.
UDA I/O User data for channels 1 and 2. Valid only for non-AES/EBU audio formats. This
pin should be g rounded 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.
UDB I/O User data for channels 3 and 4. Valid only for non-AES/EBU audio formats. This
pin should be g rounded when inputting AES/EBU audio data . In Multiplex Mode,
this pin is an input and is supp lied b y the user. In Demultiplex Mode, this pin is
an output and is generated by the GS9023A.
CSA I/O 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 Mod e, this
pin is an outp ut and is generated b y the GS9023A.
CSB I/O 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 Mod e, this
pin is an outp ut and is generated b y the GS9023A.
2
3
DESCRIPTION
PRA-BD11
3
4
4