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參數資料
| 型號： | TPA6120A2DWP |
| 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 |
| 文件頁數： | 11/25頁 |
| 文件大小： | 611K |
| 代理商： | TPA6120A2DWP |
www.ti.com
Application Circuit
DATA
24
23
22
21
20
19
18
17
16
15
5
6
7
8
9
10
11
12
13
14
PCM1792
BCK
SCK
DGND
VDD
MS
MDI
MC
MDO
RST
AGND2
IOUTR
VCC1
VCOML
VCOMR
IREF
IOUTR+
AGND3R
AGND1
ZEROL
1
2
3
4
ZEROR
MSEL
LRCK
28
27
26
25
VCC2L
AGND3L
IOUTL
IOUTL+
5 V
VCC2R
0.1
F
Controller
10
F
3.3 V
PCM
Audio
Data
Source
0.1
F
10
F
+
47
F
47
F
5 V
10
F
10 k
+
CF 2.7 nF
RF 1 kW
0.1
F
10
F
5 V
+
V
V+
4
12
13
14
IND
OUTD
+
CF 2.7 nF
RF 1 kW
V
V+
4
10
9
8
INC
+
CF 2.7 nF
RF 1 kW
V
V+
4
3
2
1
+
CF 2.7 nF
RF 1 kW
V
V+
4
5
6
7
11
INB
INA
OUTA
OUTB
OUTC
+
1 kW
VCC
3
4
5
2
LOUT
0.1 mF
VCC+
LIN
LIN+
0.1 mF
RO 10 W
4
+
RF
VCC
18
17
16
19
ROUT
0.1 mF
VCC+
RIN
RIN+
0.1 mF
20
1 kW
RI
RF
1 kW
RI
1 kW
RI
RF
1 kW
RI
RF
+
10
F
0.1
F
5 V
V+
+ 10 F
0.1
F
5 V
V
OPA4134
+
100
F
10
F
12 V
VCC+
+ 100 F
10
F
12 V
VCC
TPA6120A2
+
RO 10 W
TPA6120A2
SLOS431 – MARCH 2004
Figure 36. Typical Application Circuit
In many applications, the audio source is digital. It must go through a digital-to-analog converter (DAC) so that
traditional analog amplifiers can drive the speakers or headphones.
Figure 36 shows a complete circuit schematic for such a system. The digital audio is fed into a high performance
DAC. The PCM1792, a Burr-Brown product from TI, is a 24-bit, stereo DAC.
The output of the PCM1792 is current, not voltage, so the OPA4134 is used to convert the current input to a
voltage output. The OPA4134, a Burr-Brown product from TI, is a low-noise, high-speed, high-performance
operational amplifier. CF and RF are used to set the cutoff frequency of the filter. The RC combination in
Figure 36 has a cutoff frequency of 59 kHz. All four amplifiers of the OPA4134 are used so the TPA6120A2 can
be driven differentially.
19
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPA6120A2DWP | 制造商:Texas Instruments 功能描述:SEMICONDUCTOR 制造商:Texas Instruments 功能描述:IC, AUDIO POWER AMPLIFIER, 80mW, SO-20 |
| TPA6120A2DWPG4 | 功能描述:音頻放大器 High Fidelity Stereo Headphone Drv 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 |
| TPA6120A2DWPR | 功能描述:音頻放大器 High Fidelity Stereo Headphone Drv 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 |
| TPA6120A2DWPRG4 | 功能描述:音頻放大器 Hi Fidelity St Head phone Driver 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 |
| TPA6120A2EVM | 功能描述:音頻 IC 開發工具 TPA6120A2 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 |
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