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LMH0031 Datasheet, PDF (6/39 Pages) National Semiconductor (TI) – SMPTE 292M/259M Digital Video Deserializer Descrambler with Video and Ancillary Data FIFOs
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LMH0031
SNLS218A – JANUARY 2006 – REVISED APRIL 2013
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Required Input Conditions(1)(2)
Symbol
Parameter
Conditions
Reference
Min
Typ
Max
Units
VIN
Input Voltage Range
tr, tf
Rise Time, Fall Time
10%–90%
SMPTE 259M, Level C
All LVCMOS
Inputs
VSSIO
VDDIO
V
1.0
1.5
3.0
ns
270
SMPTE 259M, Level D
360
BRSDI
Serial Input Data Rate
SMPTE 344M
SMPTE 292M
SDI, SDI
540
1,483
MBPS
SMPTE 292M
1,485
VCM(SDI) Common Mode Voltage
VIN = 125 mVP-P
VSSSI
+1.0V
VDDSI
−0.05V
V
VIN(SDI)
SDI Serial Input Voltage,
Single-ended
125
800
880
mVP-P
VIN(SDI)
SDI Serial Input Voltage,
Differential
SDI, SDI
125
800
880
mVP-P
tr, tf
Rise Time, Fall Time
20%–80%, SMPTE 259M
Data Rates
20%–80%, SMPTE 292M
Data Rates
0.4
1.0
1.5
ns
270
ps
fACLK
Ancillary / Control Data Clock
Frequency
VCLK
MHz
DCACLK
tr, tf
Duty Cycle, Ancillary Clock
Ancillary / Control Clock and
Data Rise Time, Fall Time
10%–90%
ACLK
45
50
55
%
1.0
1.5
3.0
ns
tS
Setup Time, ADN to ACLK or
ION to ACLK Rising Edge
Control Data Input or
3.0
1.5
ION, ADN, ACLK
ns
tH
Hold Time, Rising Edge ACLK I/O Bus Input
to ADN or ACLK to ION
Timing Diagram
3.0
1.5
ns
RREF
Bias Supply Reference
Resistor
Tolerance 1%
4.75k
Ω
fEXT CLK
fXTAL
External Clock Frequency
Crystal Frequency
See Figure 7
Ext Clk
XTALo, XTALi
−100
ppm
27.0
+100
ppm
MHz
(1) Required Input Conditions are the electrical signal conditions or component values which shall be supplied by the circuit in which this
device is used in order for it to produce the specified DC and AC electrical output characteristics.
(2) Functional and certain other parametric tests utilize a LMH0030 as the input source to the SDI inputs of the LMH0031. The LMH0030 is
DC coupled to the inputs of the LMH0031. Typical VIN = 800 mV, VCM = 2.9 V.
6
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