Datasheet

SD356EVK User Manual 5 of 11
Rev 1.0 © 2008, National Semiconductor Corp.
Table 1. Control and Indicator Function Summary
Function Switch Indicator Switch “On”
Function and
Indication
Switch “Off”
Function and
Indication
Input Select Sel0
Sel1
Sel0
Sel1
Select line
pulled to logic 1
Indicator light
turns red
Select line
pulled to logic 0
Indicator light
turns green
Rate Select Rate0
Rate1
Rate0
Rate1
Rate line pulled
to logic 1
Indicator light
turns red
Rate line pulled
to logic 0
Indicator light
turns green
Bypass/Autobypass Bypass/Autobypass Bypass LMH0356
reclocker forced
to bypass mode
Indicator on
(red)
LMH0356
reclocker in
normal
(autobypass)
mode
Indicator off
Output Mute OP Mute None LMH0356
reclocker output
is muted
LMH0356
reclocker output
is active
Serial Clock Output
Enable
SCO_EN SCO_EN Second output
of the
SD356EVK
outputs the
recovered clock
Indicator on
(green)
Second output
of the
SD356EVK
outputs a copy
of the reclocked
data
Indicator off
Chip Enable ENABLE ENABLE LMH0356 is
powered up
(active)
Indicator on
(green)
LMH0356 is
powered down
(inactive)
Indicator off
SD/HD Indication None SD_HD Indicator green
indicates HD or
3 Gb/s signal or
no signal
detected
Indicator red
indicates SD
signal detected
Lock Detection None LOCK DET Indicator on
(green) when
the LMH0356
reclocker is
locked to the
incoming signal
Indicator off
when the
LMH0356
reclocker is not
locked to the
incoming signal