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參數(shù)資料
| 型號： | TPA2006D1DRB |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 1.45-W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER WITH 1.8-V COMPATIBLE INPUT THRESHOLDS |
| 中文描述： | 1.45單聲道無濾波器D類音頻功率放大器，1.8 - V兼容輸入閾值 |
| 文件頁數(shù)： | 14/23頁 |
| 文件大?。?/td> | 750K |
| 代理商： | TPA2006D1DRB |
www.ti.com
Summing Two Single-Ended Input Signals
Four resistors and three capacitors are needed for summing single-ended input signals. The gain and corner
frequencies (f
c1
and f
c2
) for each input source can be set independently (see
Equation 11
through
Equation 14
,
and
Figure 26
). Resistor, R
P
, and capacitor, C
P
, 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.
Gain 1
VO
VI1
VO
VI2
2 x 150 k
RI1
V
V
(11)
Gain 2
2 x 150 k
RI2
V
V
(12)
CI1
1
2 RI1fc1
1
2 RI2fc2
CI1
RI1
RI1
(13)
CI2
(14)
CP
CI2
RI2
RI2
(15)
RP
(16)
_
+
IN-
IN+
PWM
H-
Bridge
V
O+
V
O-
Internal
Oscillator
C
S
To Battery
V
DD
GND
Bias
Circuitry
R
I2
R
P
Filter-Free Class D
SHUTDOWN
R
I1
Single-Ended
Input 2
C
I2
C
P
Single-Ended
Input 1
C
I1
Component Location
Place all the external components very close to the TPA2006D1. The input resistors need to be very 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, C
S
, 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.
TPA2006D1
SLOS498–SEPTEMBER 2006
Figure 26. Application Schematic With TPA2006D1 Summing Two Single-Ended Inputs
14
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPA2006D1DRBR | 功能描述:音頻放大器 1.45W Mono Fil-Free Class-D Audio Amp 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 |
| TPA2006D1DRBRG4 | 功能描述:音頻放大器 1.45W Mono Fil-Free Class-D Audio Amp 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 |
| TPA2006D1DRBT | 功能描述:音頻放大器 1.45W Mono Fil-Free Class-D Audio Amp 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 |
| TPA2006D1DRBTG4 | 功能描述:音頻放大器 1.45W Mono Fil-Free Class-D Audio Amp 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 |
| TPA2006D1EVM | 功能描述:音頻 IC 開發(fā)工具 AUD POWER AMP RoHS:否 制造商:Texas Instruments 產(chǎn)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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