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參數資料
| 型號： | TPA6132A2RTET |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 0.025 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC16 |
| 封裝： | 3 X 3 MM, GREEN, PLASTIC, QFN-16 |
| 文件頁數： | 5/24頁 |
| 文件大小： | 1166K |
| 代理商： | TPA6132A2RTET |
CO
CO
Conventional
VOUT
GND
VOUT
GND
VBIAS
Capless
DirectPath
GND
VDD
VSS
ELIMINATING TURN-ON POP AND POWER SUPPLY SEQUENCING
www.ti.com ........................................................................................................................................................................................... SLOS597 – DECEMBER 2008
Figure 25. Amplifier Applications
The DirectPath amplifier architecture operates from a single supply voltage and uses an internal charge pump
to generate a negative supply rail for the headphone amplifier. The output voltages are centered around 0 V and
are capable of positive and negative voltage swings as shown in the bottom drawing of Figure 25. DirectPath
amplifiers require no output dc-blocking capacitors. The headphone connector shield pin connects to ground and
will interface will headphones and non-headphone accessories. The TPA6132A2 is a DirectPath amplifier.
The TPA6132A2 has excellent noise and turn-on / turn-off pop performance. It uses an integrated click-and-pop
suppression circuit to allow fast start-up and shutdown without generating any voltage transients at the output
pins. Typical start-up time from shutdown is 5 ms.
DirectPath technology keeps the output dc voltage at 0 V even when the amplifier is powered up. The DirectPath
technology together with the active pop-and-click suppression circuit eliminates audible transients during start up
and shutdown.
Use input coupling capacitors to ensure inaudible turn-on pop. Activate the TPA6132A2 after all audio sources
have been activated and their output voltages have settled. On power-down, deactivate the TPA6132A2 before
deactivating the audio input source. The EN pin controls device shutdown: Set to 0.6 V or lower to deactivate the
TPA6132A2; set to 1.3 V or higher to activate.
Copyright 2008, Texas Instruments Incorporated
13
Product Folder Link(s) :TPA6132A2
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPA6132A2RTET | 制造商:Texas Instruments 功能描述:Audio Power Amplifier IC 制造商:Texas Instruments 功能描述:IC, AUDIO PWR AMP, CLASS AB, 25mW QFN-16 |
| TPA6133A2 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:138-mW DIRECTPATH STEREO HEADPHONE AMPLIFIER |
| TPA6133A2EVM | 制造商:Texas Instruments 功能描述:TPA6133A2EVM - Boxed Product (Development Kits) 制造商:Texas Instruments 功能描述:EVAL BOARD FOR TPA6133A2 |
| TPA6133A2RTJR | 制造商:Texas Instruments 功能描述:IC AMP AUDIO .138W STER AB 20WQF 制造商:Texas Instruments 功能描述:TPA6133A2RTJR |
| TPA6133A2RTJT | 制造商:TI 制造商全稱:Texas Instruments 功能描述:138-mW DIRECTPATH STEREO HEADPHONE AMPLIFIER |
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