參數(shù)資料
型號(hào)： LA4725
元件分類(lèi)： 音頻／視頻放大
英文描述： 30 W, 2 CHANNEL, AUDIO AMPLIFIER, ZFM14
封裝： SIP-14
文件頁(yè)數(shù)： 2/8頁(yè)
文件大小： 124K
代理商： LA4725
LA4725
No.5715-2/8
Operating Conditions at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
VCC
13.2
V
Allowable operating supply voltage
VCC op
9 to 16
V
Recommended load resistance
RL
4
Note : With VCC, RL, and the output level in ranges such that the Pd max for the heat sink used is not exceeded.
Electrical Characteristics at Ta = 25°C, VCC = 13.2V, RL = 4, f = 1kHz, Rg = 600
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
Quiescent current
ICCO
Rg = 0
70
125
250
mA
Standby mode current drain
Ist
Standby mode (amplifier off), with no power
supply capacitor.
10
60
A
Voltage gain
VG
VO = 0dBm
38
40
42
dB
Total harmonic distortion
THD
PO = 2W
0.06
0.2
%
PO1
THD = 10%
13
17
W
PO2
THD = 10%, VCC = 14.4V
20
W
Output power
PO3
THD = 30%, VCC = 14.4V
30
W
Output offset voltage
VN offset
Rg = 0
-300
+300
mV
Output noise voltage
VNO
Rg = 0, BPF = 20Hz to 20kHz
0.1
0.5
mV
Ripple rejection ratio
SVRR
Rg = 0, VR = 0dBm, fR = 100Hz
40
50
dB
Channel separation
CHsep
Rg = 10k
, VO = 0dBm
50
60
dB
Input resistance
Ri
21
30
39
k
Standby pin applied voltage
VST
Amplifier on
(applied through an external 10k
resistor)
2.5
VCC
V
Package Dimensions
unit : mm (typ)
3113B
SANYO : SIP14HZ
7.0
4.
6
7.8
5.2
14
1
26.8
(20.0)
0.8
1.6
2.2
4.0
(8
.4
)
(R1.7)
0.5
0.4
(1.83)
1.78
HEAT SPREADER
(11.8)
14.5MA
X
0
Pd max -- Ta
-40
35
25
30
15
20
10
5
20
0
40
60
80
100
120
140
160
θf(wàn) = 3°C/W
θf(wàn) = 4°C/W
θf(wàn) = 7°C/W
θjc = 2°C/W
Νο Fin
θf(wàn) = 10°C/W
32.5
20.83
13.9
10.4
3.1
Infinite heat sink
Allowable
power
dissipation,
Pd
max
--
W
Ambient temperature, Ta --
°C
AI heat sink Mounting
torque 39N
cm
Flat washer Silicone
grease applied
-20
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