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參數資料
| 型號： | TPA6138A2PWR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 0.04 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO14 |
| 封裝： | GREEN, PLASTIC, TSSOP-14 |
| 文件頁數： | 1/18頁 |
| 文件大小： | 436K |
| 代理商： | TPA6138A2PWR |
SLOS704A
– JANUARY 2011 – REVISED MAY 2011
DirectPath
Headphone Driver With Adjustable Gain
Check for Samples: TPA6138A2
1
FEATURES
DESCRIPTION
23
Stereo DirectPath
Headphone Amplifier
The TPA6138A2 is a pop-free stereo headphone
– 40 mW Into 32 With 3.3-V Supply
amplifier designed to allow the removal of the output
Low THD+N
< 0.01% at 10 mW Into 32
dc-blocking capacitors for reduced component count
and cost. The device is ideal for single-supply
High SNR,
>90 dB
electronics where size and cost are critical design
Differential Input and Single-Ended Output
parameters.
Adjustable Gain by External Gain-Setting
Designed
using
TI
’s
patented
DirectPath
Resistors
technology, The TPA6138A2 is capable of driving 25
Configurable as a Second-Order Low-Pass
mW into a 32-
Ω load with 3.3-V supply voltage. The
Filter
device has differential inputs and uses external
– Ideal for PWM Audio Sources
gain-setting resistors that supports a gain range of
±1
V/V to
±10 V/V. Gain can be configured individually
Low DC Offset,
<1 mV
for each channel. The device can also be configured
Ground-Referenced Outputs Eliminate
as a second-order low-pass filter and is ideal for
DC-Blocking Capacitors
interfacing with PWM audio sources. Audio output
– Reduce Board Area
compiles with
±8-kV IEC ESD protection, requiring
just a simple resistor-capacitor ESD protection circuit.
– Reduce Component Cost
The TPA6138A2 has built-in active-mute control for
– Improve THD+N Performance
pop-free audio on/off control. The TPA6138A2 has an
– No Degradation of Low-Frequency
external undervoltage detector that mutes the output
Response Due to Output Capacitors
when the power supply is removed, ensuring a
pop-free shutdown.
Short-Circuit Protection
Using the TPA6138A2 in audio products can reduce
Click- and Pop-Reduction Circuitry
component
count
considerably
compared
to
External Undervoltage Mute
traditional headphone amplifiers. The TPA6138A2
Active Mute Control for Pop-Free Audio On/Off
does not require a split-rail power supply or a dc
Control
blocking capacitor. The TPA6138A2 integrates its
own charge pump to generate a negative supply rail
Space-Saving TSSOP Package
that provides a clean, pop-free ground-biased audio
signal.
APPLICATIONS
The TPA6138A2 is available in a 14-pin TSSOP.
LCD and PDP TV
Blu-ray Disc
, DVD Players
Set-Top Boxes
Mini/Micro Combo Systems
Sound Cards
Laptops
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
DirectPath, FilterPro are trademarks of Texas Instruments.
3
Blu-ray Disc is a trademark of Blu-ray Disc Association.
PRODUCTION DATA information is current as of publication date.
Copyright
2011, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPA6139A2 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:DirectPatha?￠ 25-mW Headphone Amplifier With Programmable-Fixed Gain |
| TPA6139A2EVM | 功能描述:音頻 IC 開發工具 TPA6139A2EVM 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 |
| TPA6139A2PW | 功能描述:音頻放大器 25mW Headphone Amp 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 |
| TPA6139A2PW | 制造商:Texas Instruments 功能描述:HEADPHONE AMPLFIER IC STEREO 32OHM 25 |
| TPA6139A2PWR | 功能描述:音頻放大器 25mW Headphone Amp 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 |
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