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5. LA42072N-E AUDIO AMPLIFIER
5. LA42072N-E AUDIO AMPLIFIER
LA42000 series is power IC which made Pin compatible possible a ltogether in 5 to 15W.
They consist of four kinds of power ICs.
(mono, stereo, mono with volume function , stereo with volume function.£'
They realized PCB layout communalization of an audio power bloc k of TV.
Block Diagram
Operating Characteristics at Ta = 25¡ ,VCC = 12V,RL = 8¥ ,f = 1kH z,Rg = 600¥
Parameter
Quiescent current
Output power
Total harmonic distortion
Voltage gain
Output noise voltage
Ripple rejection
Channel separation
Muting attenuation
Muting control voltage
£¤The Pin 6 voltage£'
Standby control voltage
(The Pin 5 voltage£'
Input resistance
Symbol
Conditions
I
Rg=0
CCO
Po
THD=10%
THD
Po=1W
VG
Vo=0dBm
V
Rg=0,BPF=20Hz to 20kHz
NO
SVRR
Rg=0,f
=100Hz,V
R
Sep.
Rg=10k¥ , Vo=0dBm
A
Vo=1Vrms, BPF=20Hz to 20k H 80
TT
V
- H
Muting on
MUTE
V
- L
Muting off
MUTE
V
- H
Amplifier on
STB
V
- L
Amplifier off
STB
Ri
-23-
IC DESCRIPTION
Ratings
min
typ
40
70
6
7
-
0.06
33
35
-
0.1
=0dBm
50
60
CCR
50
60
90
1.7
-
0
-
2.5
-
0
-
21
30
Unit
max
150
mA
-
W
0.2
%
37
dB
0.3
mVrms
-
dB
-
dB
-
dB
3.0
V
0.5
V
20
V
0.5
V
39
k¥
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