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參數(shù)資料
| 型號： | LM4881 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Dual 200 mW Headphone Amplifier with Shutdown Mode |
| 中文描述： | 雙200毫瓦耳機放大器，具有關斷模式 |
| 文件頁數(shù)： | 3/11頁 |
| 文件大?。?/td> | 413K |
| 代理商： | LM4881 |
Electrical Characteristics
(Notes 2, 3)
The following specifications apply for V
DD
= 3V unless otherwise specified. Limits apply for T
A
= 25C.
Symbol
Parameter
Conditions
LM4881
Units (Limits)
Typ
(Note 7)
1.1
0.7
5
Limit
(Note 8)
I
DD
I
SD
V
OS
P
O
Quiescent Current
Shutdown Current
Offset Voltage
Output Power
V
IN
= 0V, I
O
= 0A
V
PIN1
= V
DD
V
IN
= 0V
THD = 1% (max);
f = 1 kHz;
R
L
= 8
R
L
= 16
R
L
= 32
THD + N = 10%;
f = 1 kHz;
R
L
= 8
R
L
= 16
R
L
= 32
R
L
= 16
, P
O
= 60 mWrms;
R
L
= 32
, P
O
=
25 mWrms; f = 1 kHz
C
B
= 1.0 μF, V
RIPPLE
=
200 mVrms, f = 100 Hz
mA
μA
mV
70
65
30
mW
mW
mW
95
65
35
0.2
0.03
mW
mW
mW
%
%
THD+N
Total Harmonic Distortion +
Noise
PSRR
Power Supply Rejection Ratio
50
dB
Note 2:
All voltages are measured with respect to the ground pin, unless otherwise specified.
Note 3:
Absolute Maximum Ratingsindicate limits beyond which damage to the device may occur. Operating Ratingsindicate conditions for which the device is func-
tional, but do not guarantee specific performance limits. Electrical Characteristicsstate DC andAC electrical specifications under particular test conditions which guar-
antee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit is
given, however, the typical value is a good indication of device performance.
Note 4:
The maximum power dissipation must be derated at elevated temperatures and is dictated by T
,
θ
, and the ambient temperature T
. The maximum
allowable power dissipation is P
= (T
T
) /
θ
. For the LM4881, T
JMAX
= 150C, and the typical junction-to-ambient thermal resistance, when board
mounted, is 210C/W for the MSOP Package and 107C/W for package N08E.
Note 5:
Human body model, 100 pF discharged through a 1.5 k
resistor.
Note 6:
Machine Model, 220 pF–240 pF discharged through all pins.
Note 7:
Typicals are measured at 25C and represent the parametric norm.
Note 8:
Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).
www.national.com
3
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| LM4881M | Dual 200 mW Headphone Amplifier with Shutdown Mode |
| LM4881MM | Dual 200 mW Headphone Amplifier with Shutdown Mode |
| LM4881N | Dual 200 mW Headphone Amplifier with Shutdown Mode |
| LM4882 | 250mW Audio Power Amplifier with Shutdown Mode |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM4881M | 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4881M/NOPB | 功能描述:音頻放大器 BOOMER DUAL 200MW HEADPHONE AMP 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4881MM | 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4881MM/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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4881MM/SL110729 | 制造商:Texas Instruments 功能描述: |
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