LA1145 Просмотр технического описания (PDF) - SANYO -> Panasonic

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Компоненты Описание

производитель

LA1145

FM IF System (Quadrature Detector) for Car Radio

SANYO -> Panasonic 

Sample Application Circuit

LA1145, 1145M

50 µs

DC

emphasis

capacitor

Mute driver

output

S-meter

output

LS1140 and LS1145 Compared

Parameter

Package

IF amp, limiter

Quadrature detector

AF preamp

AFC output

Signal meter output

Band muting

IF count buffer output

SD circuit

S/N

3 dBµ limiting sensitivity

Weak signal noise output

LA1140

SIP-16

Direct-coupled

j

j

j

j

j

–

–

78 dBµ

25 dBµ (fixed)

j

LA1145

SIP-18Z

MFP-20

C-coupled

j

j

j

jC

jC

j

j

86 dB

25 to 40 dBµ

jC

L1: 81N-014A (Sumida)

L2: 81N-014B (Sumida)

Unit (resistance: Ω, capacitance: F)

Remarks

Improved linearity, variable S-meter gradient

Improved temperature stability,

VBE dependent

Common with STRQ

For the LA1140, Coupled with the soft muting

function.

–3 dBµ limiting sensitivity variable,

independent of soft muting function

No. 2725-5/17

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