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參數(shù)資料
| 型號： | LM4914MH/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 0.085 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO10 |
| 封裝： | TSSOP-10 |
| 文件頁數(shù)： | 11/16頁 |
| 文件大?。?/td> | 767K |
| 代理商： | LM4914MH/NOPB |
Electrical Characteristics: Bridged-Mode Operation (V
DD = 5V)
The following specifications apply for the circuit shown in Figure 1, R
L =8
, and a measurement bandwidth of 20Hz to
80kHz, unless otherwise specified. Limits apply for T
A = 25C.
Symbol
Parameter
Conditions
LM4914
Units
(Limits)
Typical
Limit
(Notes 9, 10)
P
O
Output Power (Note 1, 11)
R
L =8
, f = 1kHz,
THD+N = 0.1%, A
V = 8dB
1
W (min)
THD+N
Total Harmonic Distortion + Noise
R
L =8
, f = 1kHz, P
O = 1W
0.33
%
V
ON
Output Voltage Noise
C
B = 0.47F, 20Hz < f < 20kHz
35
V
RMS
Electrical Characteristics: SE Operation (V
DD = 5V)
The following specifications apply for the circuit shown in Figure 1 and a measurement bandwidth of 20Hz to 80kHz, unless
otherwise specified. Limits apply for T
A = 25C.
Symbol
Parameter
Conditions
LM4914
Units
(Limits)
Typical
Limit
(Notes 9, 10)
P
O
Output Power (Note 11)
THD+N = 0.1%, f = 1kHz,
R
L =32
,A
V = 1.9dB (Note 12)
85
mW (min)
V
ON
Output Voltage Noise
C
B = 0.47F, 20Hz < f < 20kHz
13
V
RMS
Electrical Characteristics for Entire Amplifier (V
DD = 3V)
The following specifications apply for the circuit shown in Figure 1, unless otherwise specified. Limits apply for T
A = 25C.
Symbol
Parameter
Conditions
LM4914
Units
(Limits)
Typical
Limit
(Notes 9, 10)
V
DD
Supply Voltage
2.5
5.5
V (min)
V (max)
I
DD
Quiescent Power Supply Current
V
IN = 0V, IO = 0A, No Load
2.7
5
mA (max)
I
SD
Shutdown Quiescent Power Supply
Current
V
SHUTDOWN = GND
0.03
4
A (max)
V
OS
Output Offset Voltage
7
30
mV (max)
PSRR
Power Supply Rejection Ratio
V
DD = 3V, CBYPASS = 0.47F,
V
ripple = 200mVp-p 1kHz sine wave
R
L =8
52 BTL
60 SE
dB
HP-S
VIH
HP-SENSE Logic-High Threshold
Voltage
2.7
V (min)
HP-S
VIL
HP-SENSE Logic-Low Threshold
Voltage
1.65
V (max)
SD
VIH
Shutdown Logic High Threshold
2
V (min)
SD
VIL
Shutdown Logic Low Threshold
0.8
V (max)
LM4914
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