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LA4705 Datasheet(Fiches technique) 1 Page - Sanyo Semicon Device

Numéro de pièce LA4705
Description  15 W 2-channel BTL AF Power Amplifier for Car Stereos
Télécharger  8 Pages
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Fabricant  SANYO [Sanyo Semicon Device]
Site Internet  http://www.ssdc-jp.com/eng/
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15 W 2-channel BTL AF Power Amplifier
for Car Stereos
Overview
The LA4705 is a BTL two-channel power IC for car audio and
radio-cassette players developed in pursuit of excellent sound
quality. Low-region frequency characteristics have been
improved through the use of a new NF capacitorless circuit,
and crosstalk which causes ‘‘muddy’’ sound has been reduced
by improving both circuit and pattern layout. As a result, the
LA4705 provides powerful bass and clear treble. In addition,
the LA4705 features on-chip protectors and standby switch.
Features
.
High power: supports total output of 25 W + 25 W
(VCC = 14.4 V, THD = 30%, RL =4 Ω)
.
Less pop noise
.
Designed for excellent sound quality
(fL < 10 Hz, fH = 130 kHz)
.
Any on time settable by external capacitor
.
Standby switch circuit on chip (microprocessor supported)
.
Various protectors on chip
(output-to-ground short/output-to-VCC short/
load short/overvoltage/thermal shutdown circuit)
.
NF capacitorless
.
Supports RL =2 Ω
Package Dimensions
unit: mm
3109-SIP18H
[LA4705]
SANYO : SIP18H
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VCC max 1
No signal,t=60s
24
V
VCC max 2
With signal
18
V
Surge supply voltage
VCC surge
t
% 0.2 s, single giant pulse
50
V
Allowable power dissipation
Pd max
Arbitrarily large heat sink
37.5
W
Operating temperature
Topr
–35 to +85
°C
Storage temperature
Tstg
–40 to +150
°C
* Set VCC,RL in a range that does not exceed Pd max = 37.5 W
Ordering number: EN3848D
Monolithic Linear IC
LA4705
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
D3096HA(II)/12693TS/4152TS No.3848-1/8




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