- 您現在的位置：買賣IC網 > PDF目錄98273 > TPA3107D2PAP (TEXAS INSTRUMENTS INC) 15 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP64 PDF資料下載
參數資料
| 型號： | TPA3107D2PAP |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 15 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP64 |
| 封裝： | 10 X 10 MM, GREEN, PLASTIC, HTQFP-64 |
| 文件頁數： | 9/32頁 |
| 文件大小： | 1027K |
| 代理商： | TPA3107D2PAP |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁當前第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁
www.ti.com
Adaptive Dynamic Range Control
TPA3107D2
t-Time=100 s/div
m
V-V
oltage=10V/div
ClosestCompetitor
t-Time=20 s/div
m
V-V
oltage=1V/div
TPA3107D2
Gain setting via GAIN0 and GAIN1 inputs
INPUT RESISTANCE
SLOS509B – OCTOBER 2006 – REVISED JULY 2007
APPLICATION INFORMATION (continued)
Figure 25. 1-kHz Sine Output at 10% THD+N
Figure 26. 8-kHz Sine Output at 10% THD+N
The Texas Instruments patent-pending adaptive dynamic range control (ADRC) technology removes the notch
inherent in class-D audio power amplifiers when they come out of clipping. This effect is more severe at higher
frequencies as shown in Figure 26.
The gain of the TPA3107D2 is set by two input terminals, GAIN0 and GAIN1.
The gains listed in Table 1 are realized by changing the taps on the input resistors and feedback resistors inside
the amplifier. This causes the input impedance (ZI) to be dependent on the gain setting. The actual gain settings
are controlled by ratios of resistors, so the gain variation from part-to-part is small. However, the input
impedance from part-to-part at the same gain may shift by
±20% due to shifts in the actual resistance of the
input resistors.
For design purposes, the input network (discussed in the next section) should be designed assuming an input
impedance of 12.8 k
, which is the absolute minimum input impedance of the TPA3107D2. At the lower gain
settings, the input impedance could increase as high as 38.4 k
Table 1. Gain Setting
INPUT IMPEDANCE
AMPLIFIER GAIN (dB)
(k
)
GAIN1
GAIN0
TYP
0
20
32
0
1
26
16
1
0
32
16
1
36
16
Changing the gain setting can vary the input resistance of the amplifier from its smallest value, 16 k
±20%, to
the largest value, 32 k
±20%. As a result, if a single capacitor is used in the input high-pass filter, the -3 dB or
cutoff frequency may change when changing gain steps.
17
相關PDF資料 |
PDF描述 |
|---|---|
| TPA3107D2PAPRG4 | 15 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP64 |
| TPA3107D2PAPTG4 | 15 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP64 |
| TPA3107D2PAPG4 | 15 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP64 |
| TPA3110D2PWPR | 15 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO28 |
| TPA3110D2PWP | 15 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO28 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TPA3107D2PAPG4 | 功能描述:音頻放大器 15W Stereo Class-D Aud Power Amp 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 |
| TPA3107D2PAPR | 功能描述:音頻放大器 15W Stereo Class-D Audio Power Amp 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 |
| TPA3107D2PAPRG4 | 功能描述:音頻放大器 15W Stereo Class-D Audio Power Amp 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 |
| TPA3107D2PAPT | 功能描述:音頻放大器 15W Stereo Class-D Audio Power Amp 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 |
| TPA3107D2PAPTG4 | 功能描述:音頻放大器 15W Stereo Class-D Audio Power Amp 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 |
發布緊急采購，3分鐘左右您將得到回復。