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參數(shù)資料
| 型號(hào)： | TPA4411MRTJ |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 80-mW DIRECTPATH STEREO HEADPHONE DRIVER |
| 中文描述： | 80毫瓦DIRECTPATH立體聲耳機(jī)驅(qū)動(dòng)器 |
| 文件頁(yè)數(shù)： | 17/33頁(yè) |
| 文件大小： | 1025K |
| 代理商： | TPA4411MRTJ |
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Charge Pump Flying Capacitor and PVSS Capacitor
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 μF is typical. Capacitor values that are
smaller than 2.2 μF 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-μF capacitors and 1-μF capacitors.
0.001
0.01
0.1
1
10
100
1 k
10 k
100 k
f Frequency Hz
T
V
DD
= 3.6 V,
R
L
= 32
P
O
= 35 mW,
C = 1
μ
F
C = 2.2
μ
F
0.1
1
10
100
0.0001
0.001
P
O
Output Power mW
0.01
0.1
1
T
V
DD
= 3.6 V,
R
L
= 16
,
f
= 20 HZ
C = 1
μ
F
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
P
O
Output Power mW
T
V
DD
= 3.6 V,
R
L
= 16
,
f
= 20 Hz
C = 2.2
μ
F
TPA4411
TPA4411M
SLOS430C–AUGUST 2004–REVISED DECEMBER 2006
APPLICATION INFORMATION (continued)
TOTAL HARMONIC DISTORTION
+ NOISE
vs
FREQUENCY
Figure 65.
TOTAL HARMONIC DISTORTION
+ NOISE
vs
OUTPUT POWER
TOTAL HARMONIC DISTORTION
+ NOISE
vs
OUTPUT POWER
Figure 66.
Figure 67.
17
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPA4411MRTJR | 功能描述:音頻放大器 80mW Cap-free Stereo Headphone Driver 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 |
| TPA4411MRTJRG4 | 功能描述:音頻放大器 80mW Cap-free Stereo Headphone Driver 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 |
| TPA4411MRTJT | 功能描述:音頻放大器 80mW Cap-free Stereo Headphone Driver 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 |
| TPA4411MRTJT | 制造商:Texas Instruments 功能描述:Audio Power Amplifier IC 制造商:Texas Instruments 功能描述:IC, AUDIO PWR AMP, CLASS AB, 80mW QFN-20 |
| TPA4411MRTJTG4 | 功能描述:音頻放大器 80mW Cap-free Stereo Headphone Driver 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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