Daewoo DTR-14D3VG, Service Manual

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24
TA8218AH (AUDIO IC AMP) : 3 SPEAKER MODEL (CONTAINS WOOFER)
(1) General Description
The TA8218AH is 3 channel audio amplifier for consumer applications.
This IC provides an output power of 6 watts per channel.(at Vcc=20V, f=1kHz, THD=10%, R
L
=8
Ω
) It is suitable
for power amplifier of TV and Home stereo.
(2) Features
• Built-in 3ch amplifier
• High Output power : Pout=6W/ch(Typ.)
(Vcc=20V, R
L
=8
Ω
, f=1kHz, THD=10%)
• Low Noise : Vno=0.14mVrms(Typ.)
(Vcc=20V, R
L
=8
Ω
, Gv=34dB, Rg=10k
Ω
, BW=20Hz~20kHz)
• Built in Audio Muting Circuit (Active Low)
Main Amp/Surround Amp independent Control.
• Built in Various protection Circuits
Protection Circuit : Thermal Shut Down, Over Voltage, Out GND short.
• Operation Supply Voltage Range : Vcc(opr) = 10 ~ 30V(Ta=25˚C)
(3) Block Diagram