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LA4587M fiches techniques PDF

Sanyo - Preamplifier + Power Amplifier for 1.5 V Headphone Stereos

Numéro de référence LA4587M
Description Preamplifier + Power Amplifier for 1.5 V Headphone Stereos
Fabricant Sanyo 
Logo Sanyo 





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LA4587M fiche technique
Ordering number: EN5204A
Monolithic Linear IC
LA4587M
Preamplifier + Power Amplifier
for 1.5 V Headphone Stereos
Overview
The LA4587M is a system IC that includes all of the necessary
functions for a playback set on a single chip, reducing the
number of external components needed.
Functions
. Stereo preamplifier (supports auto reverse function,
switchable between metal and normal tape)
. Stereo power amplifier (OCL, mute function)
. Ripple filter
. Low boost function (BTL operation in low-frequency range)
. AMSS (Automatic Music Select System)
. Power switch
Package Dimensions
unit : mm
3102-QFP48D
[LA4587M]
Features
. Preamplifier has a high open-loop gain (VGO = 73 dB).
. Preamplifier requires no NF capacitor.
. Virtual ground capacitor can be 1 µF or less. (Lower
impedance is achieved by having a VREF amplifier built in.)
. Ripple filter requires no capacitor for preventing oscillation.
. Powerful output is obtained in low boost output
. (Po = 21 mW/VCC = 1.2 V, f = 100 Hz).
A high-frequency cutoff capacitor is built into the
preamplifier and power amplifier inputs; anti-buzz provision.
SANYO : QIP48D
Specifications
Maximum Ratings at Ta = 25 °C
Parameter
Symbol
Maximum supply voltage
Allowable power dissipation
VCC max
Pd max
Operating temperature
Topr
Storage temperature
Tstg
Conditions
Ambient temperature, Ta − °C
Ratings
3.0
635
–10 to +60
–40 to +125
Unit
V
mW
°C
°C
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
13097HA(II)/N3095HA(II) No.5204-1/18

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