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

device, the customer should always evaluate and test devices mounted in the customer

equipment.

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.

62712 SY 20120611-S00003/51612 SY No.A2057-1/11

LA1844MC

Overview

The LA1844MC is designed for use in mini systems and is a single-chip tuner IC that provides electronic tuning functions

using SD/IF-count technique. It incorporates a pilot canceler and an adjustment-free MUX VCO circuit, thus allows

additional parts to be reduced.

Features

• Integrated MPX VCO (ceramic resonators are no longer required.)

• Built-in adjacent channel interference rejection function (114kHz, 190kHz)

• Supports both SD and IF-count techniques

• Both FM SD sensitivity and bandwidth can be set

• Pilot canceler built in.

• Package : MFP24SJ(300mil)

Functions

• AM :

RF amplifier, mixer, oscillator, IF amplifier, detector, AGC, SD, oscillator buffer, IF buffer, stereo IF output,

AGC time constant switch

• FM IF : IF amplifier, quadrature detector, S-meter, SD (signal detection), S-curve detection, IF buffer output

• MPX : PLL stereo decoder, stereo display, forced monaural, VCO stop, audio muting, adjacent channel interference

rejection function, pilot canceler

Ordering number : ENA2057A

Monolithic Linear IC

For Home Stereo

Single-chip Tuner IC