LA74310LP Datasheet, PDF (1/22 Pages) Sanyo Semicon Device – Monolithic Linear IC Audio Interface for DSC + Video Driver

Ordering number : ENA0904
LA74310LP
Monolithic Linear IC
Audio Interface for DSC
+ Video Driver
Overview
The LA74310LP is an AV interface IC for digital still cameras (DSCs). It incorporates all the functions necessary for
analog audio signal processing for microphone and loudspeaker amplifiers. It also incorporates video output drivers that
require no output coupling capacity. The IC is ideal for reducing the number of components and further miniaturization of
digital still cameras.
Features
AUDIO INTERFACE block
• Three-wire type SERIAL communication • MIC AMP,
MIC power supply incorporated (with built-in pull-up resistor)
• ALC
• PB input method: Analog or digital for inputting (∆Σ) signal
• 3rd order LPF (for REC/PB switching control, option of fc=4kHz or 11kHz)
• SPEAKER AMP (The BEEP signal can be mixed.),
with electronic VOLUME (controlled by Serial communication)
• LINE output (with SERIAL MUTE)
• STANDBY control (current drain < 10µA)
VIDEO DRIVER block
• Not requires output coupling capacity
• Low voltage drive (VCC=2.7V to 3.6V)
• V sag does not occur
• 6th order LPF (fc=9MHz) is built-in.
• 0µA current dissipation on standby mode.
• 3 ways amplifier gains (6, 12, 16dB) can be selected. (Pin control (GND/Open/VCC))
• The video output has the capacity where one load of 75Ω impedance can be driven.
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer's products or
equipment.
91207 TI IM B8-9167 No.A0904-1/22