參數(shù)資料
型號(hào)： LA4905
廠商： Sanyo Electric Co.,Ltd.
元件分類： 音頻放大器
英文描述： 17-W, 2-Channel BTL AF High-Efficiency Power Amplifier for Car Stereo Systems
中文描述： 17鎢，雙通道橋接自動(dòng)對(duì)焦高效率數(shù)字功放的汽車音響系統(tǒng)
文件頁(yè)數(shù)： 2/10頁(yè)
文件大小： 549K
代理商： LA4905
No. 5504-2/10
LA4905
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
V
CC
V
CC
op
R
L
R
L
op
13.2
V
Allowable operating supply voltage range
8 to 18
V
Recommended load resistance
4
Recommended load resistance range
2 to 4
Operating Conditions
at Ta = 25°C
Operating Characteristics
at Ta = 25°C, V
CC
= 13.2 V, R
L
= 4
, f = 1 kHz, Rg = 600
, in the recommended circuit
Notes:Set VCC and RL in the range where Pd max does not exceed 37.5 W.
Parameter
Symbol
Conditions
min
typ
max
Unit
Quiescent current
Icco
R
L
=
∞
, V
IN
= 0
80
110
150
mA
Standby current
Ist
0
10
μA
Voltage gain
VG
V
O
= 0 dBm
P
O
= 1W, LPF = 30 kHz
THD = 10%, R
L
= 4
THD = 10%, R
L
= 2
Rg = 0, BPF = 20 Hz to 20 kHz
38
40
42
dB
Total harmonic distortion
THD
0.07
0.2
%
Output power 1
P
O
1
P
O
2
V
NO
SVRR
14
17
W
25
W
Output noise voltage
0.15
0.3
mVrms
Ripple rejection ratio
Rg = 0, V
CCR
= 0 dBm, BPF = 20 Hz to 20 kHz
Rg = 10 k
, V
O
= 0 dBm, BPF = 20 Hz to 20 kHz
60
70
dB
Channel separation
CHsep
45
55
dB
k
mV
Input resistance
Ri
21
30
39
Output offset voltage
VN offset
Rg = 0
AMP = on, applied through a 10 k
resistor
–300
+300
Standby on voltage
V
STH
3
V
CC
V
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