Changhong Electric PF29GA18A, Service Manual, Page: 21 / 33

Operating Characteristics at Ta = 25
℃
,V
CC
= 14V,R
L
= 8
Ω
,f = 1kHz,Rg = 600
Ω
Ratings
Parameter Symbol Conditions
min typ max
Unit
Standby current I
STB
Amplifier off - 0 10 uA
Quiescent current I
CCO
Rg=0 , R
L
=open 70 mA
Output power Po THD=10% 8 10 - W
Total harmonic distortion THD Po=1W - 0.06 0.2 %
Voltage gain VG Vo=0dBm 33 35 37 dB
Output noise voltage V
NO
Rg=0,BPF=20Hz to 20kHz - 0.2 0.4 mVrms
Ripple rejection SVRR Rg=0,f
R
=100Hz,V
CCR
=0dBm 40 50 - dB
Channel separation Sep.
Rg=10k
Ω
, Vo=0dBm
50 60 - dB
Muting attenuation A
TT
Vo=1Vrms, BPF=20Hz to 20kHz 80 90 - dB
V
MUTE
- H Muting on 1.7 - 3.0 V Muting control voltage
（
The Pin 6 voltage
）
V
MUTE
- L Muting off 0 - 0.5 V
V
STB
- H Amplifier on 2.5 - 20 V Standby control voltage
（
The Pin 5 voltage
）
V
STB
- L Amplifier off 0 - 0.5 V
Input resistance Ri 21 30 39
k
Ω
Pdmax － Ｔａ
5.8
11.7
15
0
2
4
6
8
10
12
14
16
18
-20 0 20 40 60 80 100 120 140 160
Ambient temperrature, Ta - ℃
A
llo
w
ab
le
p
o
w
er
d
is
si
pa
ti
on
,
P
dm
a
x
-
W
100x100x1.5mm
50x50x1.5mm
Al heat sink
Mounting
torque 39N.㎝
Flat washer
Silicone grease
applied
θjc=3℃/W
Infinite heat sink
No Fin