
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Ordering number : EN6468A
60605MS/71400RM OT No.6468-1/13
SANYO Semiconductors
DATA SHEET
Any and all SANYO 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 representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO 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 products described or contained
herein.
LA9511W
AV Remote Coupler Transmitter
Overview
The LA9511W is a transmitter IC developed for free-space infrared transmission of stereo audio and video signals. It
integrates all the required functions for transmission, including audio signal modulation, video signal modulation, LED
drive, and other functions on a single chip. An AV coupler system can be implemented easily using this IC and a
receiver IC (such as the LA9520V).
Functions
[Audio Block]
Audio input block ALC with wide AGC operating range
Integration of passive components used for preemphasis and time constants onto the chip.
Deviation adjustment amplifier. Adjustable from an externally applied voltage: supports an electronic variable
resistor function.
Filter: Removes unneeded high-frequency components.
Audio VCO. PLL circuit adopted for adjustment-free operation.
[Video Block]
Video deviation amplifier. Adjustable from an externally applied voltage: supports an electronic variable resistor
function.
Video preemphasis
Video VCO. f0 adjustment from an externally applied voltage: supports an electronic variable resistor function.
Filter. Removes unneeded high-frequency components.
[Driver Block]
Mixer and driver amplifier. Features excellent high-frequency characteristics and allows addition of external data
(remote control).