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參數(shù)資料
| 型號(hào)： | LA4919N |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 10 W, 2 CHANNEL, AUDIO AMPLIFIER, PDFM28 |
| 封裝： | 0.500 INCH, DIP-28 |
| 文件頁(yè)數(shù)： | 2/6頁(yè) |
| 文件大小： | 78K |
| 代理商： | LA4919N |
LA4919N
No.A0323-2/6
Operating Conditions at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
VCC
15
V
Amplifier block
8
Recommended load resistance
RL
Headphone block
32
Operating supply voltage range
VCC op
The range where the package Pd is not
exceeded
7.5 to 18
V
Electrical Characteristics at Ta = 25
°C, VCC (Pin 19), Pre VCC (Pin 11) = 15V, RL = 8, f = 1kHz, Rg = 600,
See the specified board and circuit.
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
[Amplifier block]
Quiescent current
ICCO
Rg = 0
35
65
120
mA
Standby current
Ist
Amplifier off, headphone off
0
10
A
Voltage gain
VG
VO = 0dBm
28
30
32
dB
Output power
PO
THD = 10%
8
10
W
Total harmonic distortion
THD
PO = 1W, LPF = 30kHz
0.04
0.4
%
Output noise voltage
VNO
Rg = 0, DIN AUDIO*1
0.05
0.3
mV
Channel separation
Chsep
Rg = 10k
, VO = 0dBm, DIN AUDIO*1
50
60
dB
Ripple rejection
SVRR
Rg = 0, fR = 100Hz, VR = 0dBm, DIN AUDIO*1
60
70
dB
Input resistance
Ri
21
30
39
k
Output offset voltage
Voffset
Rg = 0
-120
+120
mV
Amplifier on
2
18
V
Standby control voltage
VST
Amplifier off
0
1.0
V
Pin 7 sink current
(DDL on current)*2
I7Pin
When +5V is applied to pin 7 through a 10k
resistor, THD = 10%
100
150
200
A
[Headphone block]
Voltage gain
VG
VO = 0dBm
5
6
7
dB
Output power
PO
THD = 10%
50
60
mW
Total harmonic distortion
THD
VO = 0dBm, LPF = 30kHz
0.025
0.05
%
Channel separation
Chsep
Rg = 10k
, VO = 0dBm, DIN AUDIO*1
60
70
dB
Ripple rejection
SVRR
Rg = 0, fR = 100Hz, VR = 0dBm, DIN AUDIO*1
75
85
dB
Input resistance
Ri
14
20
26
k
Output noise voltage
VNO
Rg = 0, DIN AUDIO*1
0.01
0.04
mV
Headphone amplifier on
2
18
V
Standby control voltage
VST
Headphone amplifier off
0
1.0
V
*1 : A DIN audio filter (20Hz to 20kHz) is used during testing.
*2 : DDL : Dynamic Distortion Limiter
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