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參數資料
| 型號： | TPA2054D4AYZKR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 0.94 W, 2 CHANNEL, AUDIO AMPLIFIER, BGA25 |
| 封裝： | 2.61 X 2.61 MM, GREEN, DSBGA-25 |
| 文件頁數： | 1/30頁 |
| 文件大小： | 858K |
| 代理商： | TPA2054D4AYZKR |
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FM Tuner
Codec
MP3
8 Speaker
Stereo
Headphone Jack
Left
SE
Right
SE
Left
SE
Right
SE
8 Speaker
ABB
Mono+
Mono-
TPA2054D4A
Stereo Class D
plus
DirectPath
www.ti.com
SLOS666 – MAY 2010
1.4 W/CH STEREO CLASS-D AUDIO SUBSYSTEM WITH DirectPath HEADPHONE
AMPLIFIER AND 3:1 INPUT MUX
Check for Samples: TPA2054D4A
1
FEATURES
DESCRIPTION
23
Stereo Class-D Amp:
–
1.4 W into 8
from 5.0 V (10% THD + N)
The TPA2054D4A features a stereo Class-D power
amplifier along with a stereo DirectPath headphone
–
1.25 W into 8
from 5.0 V (1% THD + N)
amplifier. The TPA2054D4A has a mono differential
DirectPath Stereo Headphone Amplifier
input and two stereo single-ended (SE) inputs that
–
No Output Capacitors Required
can be configured as one stereo differential input.
Both input channels have a 32-step volume control
Independent Gain Select for Headphone
and the DirectPath headphone amplifier has a 4-level
Amplifier
gain control for coarse volume adjustment. All
Eight Programmable Maximum Headphone
amplifiers have output short-circuit and thermal-
Voltage Limits
overload protection.
Two Single-Ended or One Differential Stereo
The Class-D amplifiers deliver 1.25 W into 8
at 1%
Input
THD from a 5.0 V supply, and 700 mW from 3.6 V.
3:1 Input MUX with Mode Control
The DirectPath headphone amplifier features an
output voltage limiter to reduce the maximum output
32-Step Volume Control for Both Input
power to one of seven possible limits. The voltage
Channels
limiter is programmed through the I2C interface.
Independent Shutdown for Headphone and
DirectPath eliminates the need for external DC-
Class-D Amplifiers
blocking output capacitors to the headphones. The
Short-Circuit and Thermal-Overload Protection
built-in charge pump creates a negative supply
±8 kV HBM ESD Protection on Headphone
voltage for the headphone amplifier, allowing a 0 V
Outputs
DC bias at the output.
I2C Interface
The DirectPath headphone amplifier gains are +6 dB
25-Ball 2,61 mm × 2,61 mm WCSP
(default), 0 dB, –6 dB, and –14 dB, selected through
the I2C interface. This allows the headphone volume
to be different from the loudspeaker volume if both
APPLICATIONS
are used simultaneously.
Smart Phones / Cellular Phones
Laptop Computers
The TPA2054D4A has a 3:1 input MUX for audio
source selection. Mode and gain controls operate
Portable Gaming
from a 1.7 V to 3.6 V compatible I2C interface.
Portable Media Players
The voltage supply range for both the Class-D
SIMPLIFIED SYSTEM BLOCK DIAGRAM
amplifiers and the headphone charge pump is 2.5 V
to 5.5 V. The Class-D amplifiers use a combined
7 mA and the headphone amplifier uses 10 mA of
typical quiescent current.
Total supply current in shutdown reduces to less than
4 mA. Undervoltage lockout keeps supply current to
less than 4 A when the supply voltage is less than
2.1 V.
The TPA2054D4AYZK is available in a 25-ball
2,61 mm × 2,61 mm WCSP package.
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 is a trademark of Texas Instruments.
3
I2C is a trademark of NXP Semiconductors.
PRODUCTION DATA information is current as of publication date.
Copyright 2010, 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 |
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| 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 |
| TPA2054D4YZKT | 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 |
| TPA2080D1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2.2 W Constant Output Power Class-D Audio Amplifier with Class-G Boost Converter |
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