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參數(shù)資料
| 型號： | LM4912 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Stereo 40mW Low Noise Headphone Amplifier |
| 中文描述： | 立體聲耳機(jī)40mW的低噪聲放大器 |
| 文件頁數(shù)： | 3/14頁 |
| 文件大?。?/td> | 699K |
| 代理商： | LM4912 |
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
(Note 2)
Supply Voltage
Storage Temperature
Input Voltage
Power Dissipation (Note 3)
ESD Susceptibility (Note 4)
ESD Susceptibility (Note 5)
4.0V
65C to +150C
-0.3V to V
DD
+ 0.3V
Internally Limited
2000V
250V
Junction Temperature
Thermal Resistance
θ
JC
(MSOP)
θ
JA
(MSOP)
150C
56C/W
190C/W
Operating Ratings
Temperature Range
T
MIN
≤
T
A
≤
T
MAX
Supply Voltage (V
DD
)
40C
≤
T
A
≤
85C
2.0V
≤
V
DD
≤
5.5V
Electrical Characteristics V
DD
= 5.0V
(Notes 1, 2)
The following specifications apply for V
DD
= 5.0V, R
L
= 16
, C
O
= 100μ, and C
B
= 4.7μF unless otherwise specified. Limits
apply to T
A
= 25C.
Symbol
Parameter
Conditions
LM4912
Units
(Limits)
Typ
(Note 6)
2
0.1
2
1.8
0.4
1.8
0.4
Limit
(Note 7)
5
2.0
5
I
DD
I
SD
I
M
V
SDIH
V
SDIL
V
MIH
V
MIL
Quiescent Power Supply Current
Shutdown Current
Mute Current
Shutdown Voltage Input High
Shutdown Voltage Input Low
Mute Voltage Input High
Mute Voltage Input Low
V
IN
= 0V, I
O
= 0A
V
SHUTDOWN
= GND
V
MUTE
= V
DD
mA (max)
μA (max)
mA (max)
V
V
V
V
P
O
Output Power
THD = 1%; f = 1kHz
R = 16
R = 32
BW = 20 Hz to 20kHz, A-weighted
V
RIPPLE
= 200mV sine p-p
f = 1kHz
mW
145
80
10
65
85
V
NO
PSRR
A
M
Output Noise Voltage
Power Supply Rejection Ratio
Mute Attenuation
μV
dB
dB
Electrical Characteristics V
DD
= 3.0V
(Notes 1, 2)
The following specifications apply for V
DD
= 3.0V, R
L
= 16
, C
O
= 100μF, and C
B
= 4.7μF unless otherwise specified. Limits
apply to T
A
= 25C.
Symbol
Parameter
Conditions
LM4912
Units
(Limits)
Typ
(Note 6)
1.5
0.1
1.5
Limit
(Note 7)
3
2.0
3
I
DD
I
SD
I
M
Quiescent Power Supply Current
Shutdown Current
Mute Current
V
IN
= 0V, I
O
= 0A
V
SHUTDOWN
= GND
V
MUTE
= V
DD
THD = 1%; f = 1kHz
mA (max)
μA (max)
mA (max)
P
O
Output Power
mW
R = 16
R = 32
40
25
10
65
80
V
NO
PSRR
A
M
Output Noise Voltage
Power Supply Rejection Ratio
Mute Attenuation
BW = 20 Hz to 20kHz, A-weighted
V
RIPPLE
= 200mV sine p-p
f = 1kHz
μV
dB
dB
L
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM49120 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Audio Sub-System with Mono Class AB Loudspeaker Amplifier and Stereo OCL/SE Headphone Amplifier |
| LM49120TL | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Audio Sub-System with Mono Class AB Loudspeaker Amplifier and Stereo OCL/SE Headphone Amplifier |
| LM49120TL/NOPB | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM49120TLX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Audio Sub-System with Mono Class AB Loudspeaker Amplifier and Stereo OCL/SE Headphone Amplifier |
| LM49120TLX/NOPB | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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