LA4587M Datasheet, PDF (1/18 Pages) Sanyo Semicon Device – Preamplifier + Power Amplifier for 1.5 V Headphone Stereos

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 V_REF 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
V_CC max
Pd max
Operating temperature
Topr
Storage temperature
Tstg
Conditions
Ambient temperature, Ta − °C
Ratings
Unit
3.0
V
635
mW
–10 to +60
°C
–40 to +125
°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