
N1506 MS PC B8-4581 No.6206-1/17
Any and all SANYO Semiconductor products described or contained herein do not have specifications
that can handle applications that require extremely high levels of reliability, such as life-support systems,
aircraft's control systems, or other applications whose failure can be reasonably expected to result in
serious physical and/or material damage. Consult with your SANYO Semiconductor representative
nearest you before using any SANYO Semiconductor products described or contained herein in such
applications.
SANYO Semiconductor assumes no responsibility for equipment failures that result from using products
at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition
ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor
products described or contained herein.
LA7137M
Overview
The LA7137M is a video output interface IC for DVD players and is optimal as the driver IC for DVD players that provide
composite signal/S signal, component signal, and RGB signal video outputs.
Since this IC integrates a Y/C mixer on the same chip, the D/A converter composite output can be omitted. The LA7137M
also integrates S1 and S2 DC voltage and D/A converter reference voltage generation on chip, allowing most components
other than the drivers to be omitted.
Functions
Clamps
Y/C mixer
Amplifier
S1 and S2 DC output
75 driver
D/A converter reference voltage output
Features
Video signal-to-noise ratio : -80dB
Frequency characteristics : flat to 10MHz
Y/C time difference : less than 2ns
Signal dynamic range : 170IRE.
Can support all major signal types : composite/S signals, component signals, and baseband (RGB) signals. Furthermore,
the IC input type can be switched by the system microcontroller (since the input capacitors are shared).
Two 75 driver systems that can be independently muted by the system microcontroller.
The clamp pulses required for component signal input are generated internally in the IC.
Either of two amplifier gain levels, 8.5 and 6dB, can be selected.
A built-in regulator circuit provides a stable DC voltage output that is independent of VCC fluctuations.
Specifications
Maximum Ratings at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VCC max
10.0
V
Allowable power dissipation
Pd max
Ta
≤ 75°C * Mounted on a board
525
mW
Operating temperature
Topr
-20 to +75
°C
Storage temperature
Tstg
-40 to +150
°C
* Only when mounted on a 114.3×76.1×1.6mm3 glass epoxy board
Monolithic Linear IC
DVD Analog Video Output I/F IC
Ordering number : EN6206