gs9023-cfy ETC-unknow, gs9023-cfy Datasheet - Page 6

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

PIN DESCRIPTIONS (Continued)
GENNUM CORPORATION
92
93
94
95-97
99
NOTE: All unused inputs of the GS9023 should be connected to ground.
NUMBER
SYMBOL
EDH_INS
AM[2:0]
MUTE
ACLK
TRS
TYPE
I
I
I
I
I
TRS Selection. Used in conjunction with the VM[2:0] pins to select video
standard format. In Multiplex Mode, when the TRS pin is HIGH, TRS is added to a
composite video signal. In Demultiplex Mode, when HIGH, TRS is removed from
a composite video signal. See Table 1.
EDH Insert Selection. Valid in Multiplex Mode only. When set HIGH, the GS9023
performs EDH functions according to SMPTE RP165. When set LOW, EDH is not
inserted.
NOTE: Active picture and full field data words are updated from recalculated
values but error flag information is replaced with the values programmed in the
internal registers via the Host Interface.
Audio mute. In Multiplex Mode, when set HIGH, the embedded audio packets
are forced to ‘0’. In Demultiplex Mode, when set HIGH, the output data is forced
to “0”.
Audio mode format. In Multiplex Mode, AM[2:0] indicates the input audio data
format. In Demultiplex Mode, AM[2:0] indicates the output audio data format.
AM[2] is the MSB and AM[0] is the LSB. See Table 2 .
Input audio signal clock (128 fs). Synchronous to PCLK.
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DESCRIPTION
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