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LMH1981 Datasheet(PDF) 2 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part # LMH1981
Description  Multi-Format Video Sync Separator
PDF  13 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LMH1981 Datasheet(HTML) 2 Page - National Semiconductor (TI)

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Absolute Maximum Ratings (Notes 1, 7)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
ESD Tolerance (Note 2)
Human Body Model
3.5 kV
Machine Model
350V
Supply Voltage V
S,
0V to 5.5V
Video Input, V
IN
−0.3V to V
S + 0.3V
Storage Temperature Range
−65˚C to +150˚C
Lead Temperature (soldering 10 sec.)
300˚C
Junction Temperature (T
JMAX) (Note 3)
+150˚C
Thermal Resistance (
θ
JA)
52˚C/W
Operating Ratings (Note 1)
Operating Temperature Range
0˚C to +70˚C
V
S
3.3V to 5V
V
IN
0V to 2.3V
Electrical Characteristics (Note 4)
Unless otherwise specified, V
S =VCC1 =VCC2 =VCC3 = 3.3V, TA = 25˚C, REXT =10k
Ω 0.1%. Output signals are measured on
pins 7, 8, 9, 12, 13, and 14. (See Figure 2 for Test Circuit)
Symbol
Parameter
Conditions
Min
(Note 6)
Typ
(Note 5)
Max
(Note 6)
Units
I
CC
Supply Current
No Input Signal, Outputs at
Logic 1
V
CC = 3.3V
mA
V
CC =5V
Video Input Specifications
V
IN-AMPL
Input Signal Amplitude
Input Signal Amplitude Required to
Maintain Slice Level Spec
0.5
2.0
V
PP
V
IN-CLAMP
Input Sync Clamp Level
Unloaded
V
V
IN-SLICE
Input Sync Slice Level
Input Signal Amplitude 0.5 V
PP to2VPP
Between Sync Tip Clamp Level and Video
Blank Level
50
%
Logic Output Specifications
V
OL
Output Logic 0,
I
OL = TBD
−0.5
1.5
V
V
OH
Output Logic 1
I
OH = TBD
V
CC = 3.3V
3.0
3.8
V
V
CC = 5V
4.5
5.5
T
SYNC-LOCK
Sync Lock Time
Hold-Off Period Before Output Are
Accurate
TBD
Composite Sync Output
See Figures 9, 10 for SDTV, EDTV &
HDTV Horizontal Interval Timing
Horizontal Sync Output
See Figures 9, 10
Burst/Back Porch Clamp
Output
See Figures 9, 10
T
VSOUT
Vertical Sync Output Pulse
Width
See Figures 3, 8 for SDTV, EDTV &
HDTV Vertical Interval Timing
3H
Periods
Odd/Even Field Output
See Figures 3, 8
Video Format Output
See Figures 11, 12, 13
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
intended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical Characteristics Tables.
Note 2: Human Body Model is 1.5 k
Ω in series with 100 pF. Machine Model is 0Ω in series with 200 pF.
Note 3: The maximum power dissipation is a function of TJ(MAX), θJA, and TA. The maximum allowable power dissipation at any ambient temperature is
PD =(TJ(MAX) -TA)/θJA . All numbers apply for packages soldered directly onto a PC board.
Note 4: Electrical table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very limited self-heating of
the device.
Note 5: Typical values represent the most likely parametric norm at the time of characterization.
Note 6: Limits are 100% production tested at 25˚C. Limits over the operating temperature range are guaranteed through correlations using the Statistical Quality
Control (SQC) method.
Note 7: All voltages are measured with respect to GND, unless otherwise specified.
Note 8: Input amplitude range reduces if VS = 3.3V.
Note 9: Outputs are active low signals, except for composite sync, odd/even field, and video format outputs.
www.national.com
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