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參數資料
| 型號： | TPA2051D3YFFT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 2.9 W, 2 CHANNEL, AUDIO AMPLIFIER, PBGA25 |
| 封裝： | 2.16 X 2.11 MM, 0.40 MM PITCH, GREEN, WCSP-25 |
| 文件頁數： | 1/34頁 |
| 文件大小： | 1594K |
| 代理商： | TPA2051D3YFFT |
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1
FEATURES
DESCRIPTION
APPLICATIONS
FM Tuner
ABB
Codec
(MP3)
TPA2051D3
MonoClass-D
plus
DirectPathTM
8 Dual-Mode
Speaker
Stereo
HeadphoneJack
Mono+
Mono-
Left
(SE)
Right
(SE)
Left
(SE)
Right
(SE)
Bypass+
Bypass-
www.ti.com ..................................................................................................................................................... SLOS641A – JUNE 2009 – REVISED OCTOBER 2009
2.9 W/Channel Mono Class-D Audio Subsystem with DirectPath Headphone Amplifier &
SpeakerGuard
23
Mono Class-D Amp: 730 mW into 8 from 3.6
The TPA2051D3 is an audio subsystem with a mono
V Supply (1% THD)
Class-D
power
amplifier,
a
stereo
DirectPath
headphone amplifier, and bypass switches. The
Class-D Bypass Switches
DirectPath headphone amplifier eliminates the need
DirectPath Stereo Headphone Amplifier
for external dc-blocking output capacitors. The built-in
–
No Output Capacitors Required
charge pump creates a negative supply voltage for
the headphone amplifier, allowing a 0 V dc bias at the
SpeakerGuard Automatic Gain Control
output. The DirectPath headphone amplifier drives
(AGC)
25 mW into 16
speakers from a 4.2 V supply.
One Differential Mono and Two Stereo
The subsystem includes three inputs: A differential
Single-Ended Inputs
mono input and two stereo single-ended (SE) inputs.
3:1 Input MUX with Mode Control
The stereo inputs are also configurable as differential
32-Step Volume Control for Both Input
mono inputs. Each input channel has an independent
Channels
volume control. Seven operating modes provide
input-to-output combinations and shutdown control.
Independent Volume Controls for All Inputs
Operating mode and volume levels are controlled
Independent Shutdown for Headphone and
over a 1.8 V compatible I2C interface.
Class-D Amplifiers
The TPA2051D3 uses SpeakerGuardTM technology to
I2C Interface
prevent output clipping distortion and excessive
Short-Circuit and Thermal-Overload Protection
power to the speaker and headphones.
Operates from 2.5 V to 5.5 V
The Class-D amplifier includes a bypass mode. This
25-Ball 2,16 mm × 2,11 mm, 0,4 mm pitch
allows the baseband IC (BB) to directly drive the 8
WCSP
speaker. This is useful for dual-mode speaker phones
in voice–only mode.
The
Class-D
amplifier
uses
4.9
mA
and
the
Smart Phones / Cellular Phones
DirectPath amplifier uses 4.1 mA of typical quiescent
Portable Media Players
current. Total supply current reduces to less than
Portable Gaming
1
A in shutdown.
Multimedia Platforms
The TPA2051D3 is available in a 25-bump 2,16 mm
× 2,11 mm, 0,4 mm pitch WCSP with less than
0.8 mm height.
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, SpeakerGuard are trademarks of Texas Instruments.
3
I2C is a trademark of NXP B.V. Corporation, Netherlands.
PRODUCTION DATA information is current as of publication date.
Copyright 2009, 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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| TPA2054D4AYZKR | 功能描述:音頻放大器 1.4 W/Ch 3-Inp Audio Subsystem 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 |
| TPA2054D4AYZKT | 功能描述:音頻放大器 1.4 W/Ch 3-Inp Audio Subsystem 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 |
| TPA2054D4YZKEVM | 功能描述:音頻 IC 開發工具 TPA2054D4YZKEVM 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 |
| TPA2054D4YZKR | 功能描述:音頻放大器 1.4 W/Ch Stereo Class-D Aud Subsys 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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