GS1559-CBE2 Gennum Corp., GS1559-CBE2 Datasheet - Page 30

• Manufacturer Part Number: GS1559-CBE2
• Description: HD-LINX II Multi-Rate Deserializer with Loop-Through Cable Driver
• Manufacturer: Gennum Corp.

4.4.3 Serial Digital Output Mute
4.5 Serial-To-Parallel Conversion
The GS1559 will automatically mute the serial digital loop-through output in both
master and slave modes when the internal carrier_detect signal indicates an
invalid serial input.
The loop-through output will also be muted in slave mode when SDO/SDO is
selected as reclocked, (RC_BYP = HIGH), but the lock detect block has failed to
lock to the data stream, (LOCKED = LOW).
Table 4-1
data stream.
Table 4-1: Serial Digital Loop-Through Output Status
The retimed data and phase-locked clock signals from the reclocker are fed to the
serial-to-parallel converter. The function of this block is to extract 10-bit or 20-bit
parallel data words from the reclocked serial data stream and present them to the
SMPTE and DVB-ASI word alignment blocks simultaneously.
Proprietary and Confidential
SLAVE MODE
SDO
RECLOCKED
BUFFERED
MUTED
MUTED
MASTER MODE
SDO
RECLOCKED
BUFFERED
MUTED
*NOTE: LOCKED = HIGH if and only if CD = LOW
summarizes the possible states of the serial digital loop-through output
30572 - 1
HIGH
HIGH
LOW
LOW
LOW
LOW
LOW
CD
CD
GS1559 Preliminary Data Sheet
November 2004
LOCKED
LOCKED
LOW*
LOW*
HIGH
HIGH
LOW
LOW
X
(OUTPUT)
RC_BYP
RC_BYP
(INPUT)
HIGH
HIGH
HIGH
LOW
LOW
LOW
X
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