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參數資料
| 型號： | TPA4411RTJ |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 0.08 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC20 |
| 封裝： | 4 X 4 MM, PLASTIC, TQFN-20 |
| 文件頁數： | 9/30頁 |
| 文件大小： | 1264K |
| 代理商： | TPA4411RTJ |
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Charge Pump Flying Capacitor and PVSS Capacitor
0.001
0.01
0.1
1
10
100
1 k
10 k
100 k
f Frequency Hz
THD+N
T
otal
Harmonic
Distortion
+
Noise
%
VDD = 3.6 V,
RL = 32 ,
PO = 35 mW,
C = 1
F
C = 2.2
F
0.1
1
10
100
0.0001
0.001
0.01
0.1
1
THD+N
T
otal
Harmonic
Distortion
+
Noise
%
VDD = 3.6 V,
RL = 16 ,
fIN = 20 HZ
C = 1
F
PO Output Power mW
In Phase
180
° Out of Phase
Single Channel
0.001
0.01
0.1
1
10
100
0.001
0.01
0.1
In Phase
180
° Out of Phase
Single Channel
PO Output Power mW
THD+N
T
otal
Harmonic
Distortion
+
Noise
%
VDD = 3.6 V,
RL = 16 ,
fIN = 20 Hz
C = 2.2
F
SLOS430E – AUGUST 2004 – REVISED MARCH 2008
The charge pump flying capacitor serves to transfer charge during the generation of the negative supply voltage.
The PVSS capacitor must be at least equal to the charge pump capacitor in order to allow maximum charge
transfer. Low ESR capacitors are an ideal selection, and a value of 2.2 F is typical. Capacitor values that are
smaller than 2.2 F can be used, but the maximum output power is reduced and the device may not operate to
specifications. Figure 65 through Figure 75 compare the performance of the TPA4411 and TPA4411M with the
recommended 2.2-F capacitors and 1-F capacitors.
TOTAL HARMONIC DISTORTION
+ NOISE
vs
FREQUENCY
Figure 65.
TOTAL HARMONIC DISTORTION
+ NOISE
vs
OUTPUT POWER
Figure 66.
Figure 67.
Copyright 2004–2008, Texas Instruments Incorporated
17
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPA4411RTJR | 功能描述:音頻放大器 80mW Cap-free Stereo Headphone Driver 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 |
| TPA4411RTJRG4 | 功能描述:音頻放大器 80mW Cap-free Stereo Headphone Driver 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 |
| TPA4411RTJT | 功能描述:音頻放大器 80mW Cap-free Stereo Headphone Driver 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 |
| TPA4411RTJTG4 | 功能描述:音頻放大器 80mW Cap-free Stereo Headphone Driver 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 |
| TPA4411YZH | 制造商:TI 制造商全稱:Texas Instruments 功能描述:80-mW CAPLESS STEREO HEADPHONE DRIVER |
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