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參數資料
| 型號： | TPA2006D1DRBTG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1.45 W, 1 CHANNEL, AUDIO AMPLIFIER, PQCC8 |
| 封裝： | 3 X 3 MM, GREEN, PLASTIC, SON-8 |
| 文件頁數： | 6/25頁 |
| 文件大小： | 1002K |
| 代理商： | TPA2006D1DRBTG4 |
Summing Two Single-Ended Input Signals
Gain 1 +
V
O
V
I1
+
2 x 150 kW
R
I1
V
(11)
Gain 2 +
V
O
V
I2
+
2 x 150 kW
R
I2
V
(12)
C
I1 +
1
2p R
I1
f
c1
(13)
C
I2 +
1
2p R
I2
f
c2
(14)
C
P +
C
I1 )
C
I2
(15)
R
P +
R
I1
R
I2
R
I1 )
R
I2
(16)
_
+
IN-
IN+
PWM
H-
Bridge
VO+
VO-
Internal
Oscillator
CS
To Battery
VDD
GND
Bias
Circuitry
RI2
RP
Filter-Free Class D
SHUTDOWN
RI1
Single-Ended
Input 2
CI2
CP
Single-Ended
Input 1
CI1
Component Location
SLOS498A – SEPTEMBER 2006 – REVISED JULY 2008 ................................................................................................................................................. www.ti.com
Four resistors and three capacitors are needed for summing single-ended input signals. The gain and corner
frequencies (fc1 and fc2) for each input source can be set independently (see Equation 11 through Equation 14,
and Figure 32). Resistor, RP, and capacitor, CP, are needed on the IN+ terminal to match the impedance on the
IN- terminal. The single-ended inputs must be driven by low impedance sources even if one of the inputs is not
outputting an ac signal.
Figure 32. Application Schematic With TPA2006D1 Summing Two Single-Ended Inputs
Place all the external components close to the TPA2006D1. The input resistors need to be close to the
TPA2006D1 input pins so noise does not couple on the high impedance nodes between the input resistors and
the input amplifier of the TPA2006D1. Placing the decoupling capacitor, CS, close to the TPA2006D1 is important
for the efficiency of the class-D amplifier. Any resistance or inductance in the trace between the device and the
capacitor can cause a loss in efficiency.
14
Copyright 2006–2008, Texas Instruments Incorporated
Product Folder Link(s): TPA2006D1
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相關代理商/技術參數 |
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| TPA2006D1EVM | 功能描述:音頻 IC 開發工具 AUD POWER AMP 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 |
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| TPA2008D2_07 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:3-W STEREO CLASS-D AUDIO POWER AMPLIFIER WITH DC VOLUME CONTROL |
| TPA2008D2EVM | 功能描述:音頻 IC 開發工具 TPA2008D2 Eval Mod 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 |
| TPA2008D2PWP | 功能描述:音頻放大器 Stereo Hi-Pwr 5-V Filter-Free Class-D 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 |
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