Datasheet

LMH0031
SNLS218A –JANUARY 2006–REVISED APRIL 2013 www.ti.com
Required Input Conditions
(1)(2)
Symbol Parameter Conditions Reference Min Typ Max Units
V
IN
Input Voltage Range V
SSIO
V
DDIO
V
All LVCMOS
Inputs
t
r
, t
f
Rise Time, Fall Time 10%–90% 1.0 1.5 3.0 ns
SMPTE 259M, Level C 270
SMPTE 259M, Level D 360
BR
SDI
Serial Input Data Rate SMPTE 344M SDI, SDI 540 M
BPS
SMPTE 292M 1,483
SMPTE 292M 1,485
V
SSSI
V
DDSI
V
CM(SDI)
Common Mode Voltage V
IN
= 125 mV
P-P
V
+1.0V −0.05V
V
IN(SDI)
SDI Serial Input Voltage,
125 800 880 mV
P-P
Single-ended
V
IN(SDI)
SDI Serial Input Voltage,
SDI, SDI 125 800 880 mV
P-P
Differential
20%–80%, SMPTE 259M
0.4 1.0 1.5 ns
Data Rates
t
r
, t
f
Rise Time, Fall Time
20%–80%, SMPTE 292M
270 ps
Data Rates
Ancillary / Control Data Clock
f
ACLK
V
CLK
MHz
Frequency
DC
ACLK
Duty Cycle, Ancillary Clock A
CLK
45 50 55 %
Ancillary / Control Clock and
t
r
, t
f
10%–90% 1.0 1.5 3.0 ns
Data Rise Time, Fall Time
Setup Time, AD
N
to A
CLK
or
t
S
3.0 1.5 ns
IO
N
to A
CLK
Rising Edge
Control Data Input or IO
N
, AD
N
, A
CLK
I/O Bus Input Timing Diagram
Hold Time, Rising Edge A
CLK
t
H
3.0 1.5 ns
to AD
N
or A
CLK
to IO
N
Bias Supply Reference
R
REF
Tolerance 1% 4.75k Ω
Resistor
f
EXT CLK
External Clock Frequency Ext Clk
−100 +100
27.0 MHz
ppm ppm
f
XTAL
Crystal Frequency See Figure 7 XTALo, XTALi
(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 V
IN
= 800 mV, V
CM
= 2.9 V.
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