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LA1805 Scheda tecnica(PDF) 1 Page - Sanyo Semicon Device

Il numero della parte LA1805
Spiegazioni elettronici  AM/FM-IF/MPX Tuner System for Radio-Casette Recorders, Music Centers
Download  13 Pages
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Produttore elettronici  SANYO [Sanyo Semicon Device]
Homepage  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LA1805 Scheda tecnica(HTML) 1 Page - Sanyo Semicon Device

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LA1805
Ordering number : EN2887B
AM/FM-IF/MPX Tuner System
for Radio-Casette Recorders, Music Centers
Monolithic Linear IC
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
12798HA (KT)/D0994JN/4030MO/N148YT, TS No.2887-1/13
Overview
The LA1805 is a characteristics-improved version of the
LA1810, with the same pin assignment and package as
those of the LA1810. Improvements are made on the
following point :
• Separation (35dB
→48dB) and its dependence on free-
running frequency (Sep – fF Characteristic on page 4).
• FM main distortion (0.8%
→0.45%).
• AM detection output (approximately 5dB increased).
The constants on five external parts are changed as shown
on page 10.
Functions
• FM-IF : IF amp, quadrature detector, soft muting, tuning
indicator.
• MPX : PLL stereo decoder, stereo indicator, forced
monaural, VCO stop.
• AM : RF amp, MIX, OSC (with ALC), IF amp, detector,
AGC, tuning indicator.
Features
• FM/AM/MPX functions contained on a single chip.
• Minimum number of external parts required.
• On-chip FM muting function.
• High sensitivity.
• Less carrier leak of MPX.
Specifications
Maximum Ratings at Ta=25°C, See specified Test Circuit.
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VCC max
Pins 3, 7, 8, 11, 20, 21
9
V
Maximum supply current
ICC max
Pins 3+20+21
50
mA
Flow-in current
ILED
Pins 7, 8
20
mA
(Indicator drive current)
Flow-out current
I23
Pin 23
0.1
mA
Allowable power dissipation
Pd max
Ta
≤70°C
500
mW
Operating temperature
Topr
–20 to +70
°C
Storage temperature
Tstg
–40 to +125
°C
Package Dimensions
unit : mm
3067-DIP24S
[LA1805]
SANYO : DIP24S
0.48
21.2
0.81
1.78
112
24
13
0.95


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