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参数资料
| 型号： | TPA6120A2DWPG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 0.08 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO20 |
| 封装： | GREEN, PLASTIC, SOP-20 |
| 文件页数： | 8/25页 |
| 文件大小： | 611K |
| 代理商： | TPA6120A2DWPG4 |
www.ti.com
10M
100k
500M
1M
100M
10k
1k
100
10
f Frequency Hz
Normalized
Output
Response
dB
3
5
7
9
4
6
8
1
0
2
1
RL = 100
RL = 25
VCC = ±15 V
RF = 1 k
Gain = 1 V/V
VI = 200 mV
RL = 50
RL = 200
10M
100k
500M
1M
100M
10k
1k
100
10
f Frequency Hz
Normalized
Output
Response
dB
VCC = ±15 V
RF = 1 k
Gain = 2 V/V
VI = 200 mV
3
5
7
9
4
6
8
1
0
2
1
RL = 100
RL = 25
RL = 200
RL = 50
10M
100k
500M
1M
100M
10k
1k
100
10
f Frequency Hz
5
6
2
1
Output
Amplitude
dB
0
3
1
2
4
3
VCC = ± 5 V
Gain = 1 V/V
RL = 25
VI = 200 mV
RF = 1 k
RF = 1.5 k
RF = 620
10M
100k
500M
1M
100M
10k
1k
100
10
f Frequency Hz
1
0
4
5
Output
Amplitude
dB
6
9
7
8
2
3
VCC = ± 5 V
Gain = 2 V/V
RL = 25
VI = 200 mV
RF = 820
RF = 1.2 k
RF = 510
PCB Layout
TPA6120A2
SLOS431 – MARCH 2004
APPLICATION INFORMATION (continued)
Figure 29. Normalized Output Response vs Frequency
Figure 30. Normalized Output Response vs Frequency
Figure 31. Output Amplitude vs Frequency
Figure 32. Output Amplitude vs Frequency
Proper board layout is crucial to getting the maximum performance out of the TPA6120A2.
A ground plane should be used on the board to provide a low inductive ground connection. Having a ground
plane underneath traces adds capacitance, so care must be taken when laying out the ground plane on the
underside of the board (assuming a 2-layer board). The ground plane is necessary on the bottom for thermal
reasons. However, certain areas of the ground plane should be left unfilled. The area underneath the device
where the PowerPAD is soldered down should remain, but there should be no ground plane underneath any of
the input and output pins. This places capacitance directly on those pins and leads to oscillation problems. The
underside ground plane should remain unfilled until it crosses the device side of the input resistors and the
output series resistor. Thermal reliefs should be avoided if possible because of the inductance they introduce.
16
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| TPA6120A2DWPR | 功能描述:音频放大器 High Fidelity Stereo Headphone Drv 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 |
| TPA6120A2DWPRG4 | 功能描述:音频放大器 Hi Fidelity St Head phone Driver 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 |
| TPA6120A2EVM | 功能描述:音频 IC 开发工具 TPA6120A2 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 |
| TPA6120A2RGYEVM | 功能描述:TPA6120A2 - Headphones, 2-Channel (Stereo) Output Class AB Audio Amplifier Evaluation Board 制造商:texas instruments 系列:- 零件状态:有效 放大器类型:AB 类 输出类型:耳机，2-通道（立体声） 不同负载时的最大输出功率 x 通道数:80mW x 2 @ 600 欧姆 电压 - 电源:10 V ~ 30 V，±5 V ~ 15 V 板类型:完全填充 使用的 IC/零件:TPA6120A2 所含物品:板 标准包装:1 |
| TPA6120A2RGYT | 功能描述:Amplifier IC Headphones, 2-Channel (Stereo) Class AB 14-VQFN (3.5x3.5) 制造商:texas instruments 系列:- 包装:剪切带（CT） 零件状态:有效 类型:AB 类 输出类型:耳机，2-通道（立体声） 不同负载时的最大输出功率 x 通道数:80mW x 2 @ 600 欧姆 电压 - 电源:10 V ~ 30 V，±5 V ~ 15 V 特性:差分输入，短路和热保护 安装类型:表面贴装 工作温度:-40°C ~ 85°C（TA） 供应商器件封装:14-VQFN（3.5x3.5） 封装/外壳:14-VFQFN 裸露焊盘 标准包装:1 |
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