LA74309FA Datasheet, PDF (1/5 Pages) Sanyo Semicon Device – Microphone Amplifier for Digital Still Camera

Ordering number : ENA2050
LA74309FA
Monolithic Linear IC
Microphone Amplifier for
Digital Still Camera
Overview
LA74309FA is a microphone amplifier for digital still cameras that have mono audio recording. The analog signal processing
for the recording of the digital still camera or other equipment can be easily composed, because the MIC power supply and
the ALC circuit are built-in. Moreover, the regulator is built-in, therefore external regulator IC is unnecessary.
Features
• Microphone (MIC) amplifier (+20dB)
• MIC power supply with built-in pull-up resistor
• Automatic level control (ALC) amplifier (output level=-1dBV≈2.5Vpp)
• 3rd order LPF (fc=11kHz)
• 3V regulator (At the time of VCC=3.3V, internal supply voltage: VCCA≈3.0V)
• Standby control (ICC≤10μA)
Specifications
Absolute Maximum Ratings at Ta=25°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum power supply voltage
Allowable power dissipation
VCC max
Pd max
Ta≤85°C
4.0
V
50
mW
Operating temperature
Topr
-20 to +85
°C
Storage temperature
Tstg
-55 to +150
°C
Caution 1) Absolute maximum ratings represent the value which cannot be exceeded for any length of time.
Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high current, high
voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details.
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. 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 new introduction or other application different
from current conditions on the usage of automotive device, communication device, office equipment, industrial
equipment etc. , please consult with us about usage condition (temperature, operation time etc.) 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.
41112 SY 20120301-S00001 No.A2050-1/5