LMH0356SQE/NOPB National Semiconductor, LMH0356SQE/NOPB Datasheet - Page 11
![IC RECLOCKER SDI HD/SD 48-LLP](/photos/6/51/65163/pkg_sqa48a_sml.jpg)
LMH0356SQE/NOPB
Manufacturer Part Number
LMH0356SQE/NOPB
Description
IC RECLOCKER SDI HD/SD 48-LLP
Manufacturer
National Semiconductor
Type
Reclockerr
Datasheet
1.LMH0356SQENOPB.pdf
(18 pages)
Specifications of LMH0356SQE/NOPB
Applications
SDTV/HDTV
Mounting Type
Surface Mount
Package / Case
48-LLP
Operating Temperature (min)
-40C
Operating Temperature Classification
Industrial
Operating Temperature (max)
85C
Package Type
LLP EP
Rad Hardened
No
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
LMH0356SQE
LMH0356SQE
LMH0356SQETR
LMH0356SQE
LMH0356SQETR
LOCK DETECT
SERIAL DATA INPUT SELECTOR
The Serial Data Input Selector (SEL [1:0]) allows the user to
select the active input channel.
lected for a given state of SEL [1:0]. The SEL pins have
internal pull-downs.
LOCK DETECT
The Lock Detect (LD) output, when high, indicates that data
is being received and the PLL is locked. LD may be connected
to the OUTPUT MUTE input to mute the data and clock out-
puts when no data signal is being received. Note than when
the Bypass/Auto Bypass input is set high, Lock Detect will
remain low. See
X
0
1
0
1
SEL [1:0] Code
TABLE 2. Data Input Select Codes
00
01
10
11
Table
OUTPUT MUTE
LOCK DETECT
LOCK DETECT
3.
1
1
0
Table 2
BYPASS/AUTO BYPASS
Selected Input
shows the input se-
SDI0
SDI1
SDI2
SDI3
TABLE 3. Control Functionality
X
X
X
0
0
11
PLL unlocked, reclocker bypassed
PLL locked to supported data rate, reclocker not bypassed
Outputs muted
Outputs muted
PLL locked to supported data rate, reclocker not bypassed
OUTPUT MUTE
The OUTPUT MUTE input, when low, mutes the serial data
and clock outputs. It may be connected to Lock Detect or ex-
ternally driven to mute or un-mute the outputs. If OUTPUT
MUTE is connected to LD, then the data and clock outputs
are muted when the PLL is not locked. This function overrides
the Bypass function: see
internal pull-up device to enable the output by default.
BYPASS/AUTO BYPASS
The Bypass/Auto Bypass input, when high, forces the device
to output the data without reclocking it. When this input is low,
the device automatically bypasses the reclocking function
when the device is in an unlocked condition or the detected
data rate is a rate which the device does not support. Note
than when the Bypass/Auto Bypass input is set high, Lock
Detect will remain low. See
PASS has an internal pull-down device.
DEVICE STATUS
Table
Table
3. OUTPUT MUTE has an
3. BYPASS/AUTO BY-
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