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参数资料
| 型号： | TPA2010D1YZFR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 2.5 W, 2 CHANNEL, AUDIO AMPLIFIER, PBGA9 |
| 封装： | 1.45 X 1.45 MM, GREEN, DSBGA-9 |
| 文件页数： | 4/25页 |
| 文件大小： | 783K |
| 代理商： | TPA2010D1YZFR |
www.ti.com
_
+
IN-
IN+
PWM
H-
Bridge
VO+
VO-
Internal
Oscillator
CS
To Battery
VDD
GND
Bias
Circuitry
RI2
+
-
Differential
Input 1
SHUTDOWN
RI1
+
-
Differential
Input 2
Filter-Free Class D
Summing a Differential Input Signal and a Single-Ended Input Signal
Gain 1 +
V
O
V
I1
+
2 x 150 kW
R
I1
V
(6)
Gain 2 +
V
O
V
I2
+
2 x 150 kW
R
I2
V
(7)
C
I2 +
1
2p R
I2
f
c2
(8)
SLOS417C – OCTOBER 2003 – REVISED SEPTEMBER 2007
If summing a ring tone and a phone signal, set the ring-tone gain to Gain 2 = 2 V/V, and the phone gain to gain 1
= 0.1 V/V. The resistor values would be. . .
RI1 = 3 M, and = RI2 = 150 k.
Figure 30. Application Schematic With TPA2010D1 Summing Two Differential Inputs
Figure 31 shows how to sum a differential input signal and a single-ended input signal. Ground noise can couple
in through IN+ with this method. It is better to use differential inputs. The corner frequency of the single-ended
input is set by CI2, shown in Equation 8. To assure that each input is balanced, the single-ended input must be
driven by a low-impedance source even if the input is not in use
If summing a ring tone and a phone signal, the phone signal should use a differential input signal while the ring
tone might be limited to a single-ended signal. Phone gain is set at gain 1 = 0.1 V/V, and the ring-tone gain is set
to gain 2 = 2 V/V, the resistor values would be…
RI1 = 3 M, and = RI2 = 150 k.
The high pass corner frequency of the single-ended input is set by CI2. If the desired corner frequency is less
than 20 Hz...
12
Copyright 2003–2007, Texas Instruments Incorporated
Product Folder Link(s): TPA2010D1
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| TPA2010D1YZFRG4 | 制造商:TI 功能描述:AUDIO POWER AMPLIFIER |
| TPA2010D1YZFT | 功能描述:音频放大器 Mono Filter-Free Class-D in WCSP RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
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| TPA2011D1_12 | 制造商:TI 制造商全称:Texas Instruments 功能描述:3.2W Mono Filter-Free Class-D Audio Power Amplifier |
| TPA2011D1YFFEVM | 功能描述:音频 IC 开发工具 TPA2011D1YFF Eval Mod RoHS:否 制造商:Texas Instruments 产品:Evaluation Kits 类型:Audio Amplifiers 工具用于评估:TAS5614L 工作电源电压:12 V to 38 V |
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