LA1140 データシートの表示（PDF） - SANYO -> Panasonic

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LA1140

FM IF System for Car Radio

SANYO -> Panasonic 

LA1140

. Variations of muting characteristics with a resistor

connected between pin 5 and GND varied.

(Adjustment of the maximum muting attenuation)

R5 – GND = 200k

Demodulation output

Noise

ANT input – dBµ

ANT input – dBµ

Unit (resistance: Ω, capacitance: F)

Sample Application Circuit 2

High Frequency Section of Car Radio and Car Stereo with Noise Canceller and FM Stereo Multiplexer

Almost all noise under a medium and lower input signal strength can be rejected by processing the muting characteristic of the

LA1140, the stereo noise control (SNC) characteristic and the high cut control characteristic of the LA3370. These examples are

as follows:

Front

end

Sample application of LA1140, LA3370

No. 729-12/15

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