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參數(shù)資料
| 型號(hào)： | TPA6120A2DWPR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 0.08 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO20 |
| 封裝： | GREEN, PLASTIC, SOP-20 |
| 文件頁(yè)數(shù)： | 8/25頁(yè) |
| 文件大小： | 611K |
| 代理商： | TPA6120A2DWPR |
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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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| TPA6120A2DWPRG4 | 功能描述:音頻放大器 Hi Fidelity St Head phone Driver 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 |
| TPA6120A2EVM | 功能描述:音頻 IC 開發(fā)工具 TPA6120A2 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓: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:- 零件狀態(tài):有效 放大器類型:AB 類 輸出類型:耳機(jī)，2-通道（立體聲） 不同負(fù)載時(shí)的最大輸出功率 x 通道數(shù):80mW x 2 @ 600 歐姆 電壓 - 電源:10 V ~ 30 V，±5 V ~ 15 V 板類型:完全填充 使用的 IC/零件:TPA6120A2 所含物品:板 標(biāo)準(zhǔn)包裝: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:- 包裝:剪切帶（CT） 零件狀態(tài):有效 類型:AB 類 輸出類型:耳機(jī)，2-通道（立體聲） 不同負(fù)載時(shí)的最大輸出功率 x 通道數(shù):80mW x 2 @ 600 歐姆 電壓 - 電源:10 V ~ 30 V，±5 V ~ 15 V 特性:差分輸入，短路和熱保護(hù) 安裝類型:表面貼裝 工作溫度:-40°C ~ 85°C（TA） 供應(yīng)商器件封裝:14-VQFN（3.5x3.5） 封裝/外殼:14-VFQFN 裸露焊盤 標(biāo)準(zhǔn)包裝:1 |
| TPA6130A2 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:138-mW DIRECTPATH STEREO HEADPHONE AMPLIFIER WITH I2C VOLUME CONTROL |
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