参数资料
型号: LA4728
元件分类: 音频/视频放大
英文描述: 35 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM14
封装: SIP-14
文件页数: 2/3页
文件大小: 44K
代理商: LA4728
LA4728
No.5716-2/3
Operating Characteristics Ta = 25 C, VCC = 13.2 V, RL = 4 k, f = 1 kHz, Rg = 600
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
Quiescent current
ICCO
Rg=0
70
125
250
mA
Standby current
IST
10
60
A
Voltage gain
VG
38
40
42
dB
Total harmonic distortion
THD
PO=1 W
0.06
0.2
%
Output power
PO1
RL=4 , THD=10 %, VCC=13.2 V
16
20
W
PO2
RL=4 , THD=10 %, VCC=14.4 V
25
W
PO3
RL=4 , THD=30 %, VCC=14.4 V
35
W
Output offset voltage
VN offset
Rg=0
–300
+300
mV
Output noise voltage
VNO
Rg=0, B.P.F.=20 Hz to 20 kHz
0.1
0.5
mVrms
Ripple rejection ratio
SVRR
Rg=0, fR=100 Hz, VR=0 dBm
40
50
dB
Channel separation
Chsep
Rg=10 k
, V
O=0 dBm
50
60
dB
Input resistance
Ri
21
30
39
k
Standby pin applied voltage
Vst
Amp on, applied through 10 k
2.5
VCC
V
–20
0
20
40
140
160
60
80
100
120
0
3.1
5
10
10.4
13.9
15
20
20.8
30
32
25
35
Ambient temperature, Ta — C
Allowable
power
dissipation,
Pd
max
W
Pd max — Ta
θf=3C/W
Arbitrarily large heat sink
No fin
θf=4C/W
θf=7C/W
θf=10C/W
θjc=2.0C/W
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