Ordering number : EN5775A
LA7477W
Monolithic Linear IC
For Digital Video Camera
Audio Signal I/O Interface IC
Overview
The LA7477W is a digital video camera audio signal I/O interface IC that integrates on a single chip a block previous
implemented with discrete components. The LA7477W integrates the volume control circuit used for both headphones and
speakers, and thus supports the implementation of circuit structures ideal for digital video cameras that include an LCD
panel.
Features
• Three-wire serial bus control
• Headphone and speaker volume controls (Support for both serial and parallel operation)
• Supports bilingual audio
• Supports record, playback, and overdubbing
• Low-power mode
Functions
• Three inputs (microphone, line 1, line 2)
• ALC (That can be turned on or off)
• Fader circuit
• Low-pass filter (used for both record and playback)
• Electronic volume control circuit
• Deemphasis circuit
• Left + right channel mixer
• Power muting function
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.
61108 MS PC/N1506 MS PC B8-3058 No.5775-1/12