- 您現在的位置：買賣IC網 > PDF目錄385488 > LM4992 (National Semiconductor Corporation) 420mW Stereo Cell Phone Audio Amplifier PDF資料下載
參數資料
| 型號： | LM4992 |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 運動控制電子 |
| 英文描述： | 420mW Stereo Cell Phone Audio Amplifier |
| 中文描述： | 420mW立體聲手機音頻放大器 |
| 文件頁數： | 5/16頁 |
| 文件大?。?/td> | 576K |
| 代理商： | LM4992 |
External Components Description
(
Figure 1
)
Components
1.
Functional Description
R
i
Inverting input resistance which sets the closed-loop gain in conjunction with R
f
. This resistor also forms a
high pass filter with C
i
at f
C
= 1/(2
π
R
i
C
i
).
Input coupling capacitor which blocks the DC voltage at the amplifiers input terminals. Also creates a
highpass filter with R
i
at f
c
= 1/(2
π
R
i
C
i
). Refer to the section,
Proper Selection of External Components
,
for an explanation of how to determine the value of C
i
.
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
.
2.
C
i
3.
4.
R
f
C
S
5.
C
B
Typical Performance Characteristics
THD+N vs Frequency
at V
= 5V, 8
R
,
and PWR = 500mW, per channel
THD+N vs Frequency
at V
= 3.3V, 8
R
,
and PWR = 250mW, per channel
200761F1
200761F2
THD+N vs Frequency
at V
= 2.6V, 8
R
,
and PWR = 150mW, per channel
THD+N vs Power Out
at V
= 5V, 8
R
L
,
1kHz, per channel
200761F3
200761F4
L
www.national.com
5
相關PDF資料 |
PDF描述 |
|---|---|
| LM5041 | Cascaded PWM Controller |
| LM5041MTC | Cascaded PWM Controller |
| LM5041MTCX | Cascaded PWM Controller |
| LM5041SD | Cascaded PWM Controller |
| LM5041SDX | Cascaded PWM Controller |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LM4992SD | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品: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 |
| LM4992SD/NOPB | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品: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 |
| LM4992SDBD | 功能描述:音頻 IC 開發(fā)工具 LM4992SD EVAL BOARD RoHS:否 制造商:Texas Instruments 產品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
| LM4992SDBD/NOPB | 制造商:Texas Instruments 功能描述:Evaluation Board For LM4992, 420Mw Stereo Cell Phone Audio Amplifier |
| LM4992SDX | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品: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 |
發(fā)布緊急采購，3分鐘左右您將得到回復。