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參數(shù)資料
| 型號(hào)： | LM4923 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 1.1 Watt Fully Differential Audio Power Amplifier With Shutdown Select |
| 中文描述： | 1.1瓦特全差分音頻功率放大器，具有關(guān)斷選擇 |
| 文件頁(yè)數(shù)： | 4/12頁(yè) |
| 文件大小： | 433K |
| 代理商： | LM4923 |
Electrical Characteristics V
DD
= 3V
(Notes 1, 2)
The following specifications apply for V
DD
= 3V, A
V
= 1, and 8
load unless otherwise specified. Limits apply for T
A
=
25C. (Continued)
Note 1:
All voltages are measured with respect to the ground pin, unless otherwise specified.
Note 2:
Absolute Maximum Ratings
indicate limits beyond which damage to the device may occur.
Operating Ratings
indicate conditions for which the device is
functional, but do not guarantee specific performance limits.
Electrical Characteristics
state DC andAC electrical specifications under particular test conditions which
guarantee 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 3:
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
JMAX
– T
A
) /
θ
JA
or the number given in Absolute Maximum Ratings, whichever is lower. For the LM4923, see power
derating curve for additional information.
Note 4:
Human body model, 100pF discharged through a 1.5k
resistor.
Note 5:
Machine Model, 220pF – 240pF discharged through all pins.
Note 6:
Typicals are measured at 25C and represent the parametric norm.
Note 7:
Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.
Note 8:
10
terminated input.
External Components Description
(
Figure 1
)
Components
1.
2.
3.
Functional Description
R
i
R
f
C
S
Inverting input resistance which sets the closed-loop gain in conjunction with R
f
.
Feedback resistance which sets the closed-loop gain in conjunction with R
i
.
Supply bypass capacitor which provides power supply filtering. Refer to the
Power Supply Bypassing
section for information concerning proper placement and selection of the supply bypass capacitor.
Bypass pin capacitor which provides half-supply filtering. Refer to the section,
Proper Selection of External
Components
, for information concerning proper placement and selection of C
B
.
4.
C
B
L
www.national.com
4
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相關(guān)代理商/技術(shù)參數(shù) |
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| LM4923_07 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:1.1 Watt Fully Differential Audio Power Amplifier With Shutdown Select |
| LM4923LQ | 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 |
| LM4923LQ/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 |
| LM4923LQBD | 功能描述:音頻 IC 開發(fā)工具 LM4923LQ EVAL BOARD RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
| LM4923LQBD/NOPB | 制造商:Texas Instruments 功能描述:Evaluation Kit For 1.1 Watt Fully Differential Audio Power Amplifier With Shut-Down Select |
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