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TPA2014D1YZHR データシート(PDF) 1 Page - Texas Instruments

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部品番号 TPA2014D1YZHR
部品情報  1.5-W CONSTANT OUTPUT POWER CLASS-D AUDIO AMPLIFIER WITH INTEGRATED BOOST CONVERTER
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メーカー  TI [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI - Texas Instruments

TPA2014D1YZHR データシート(HTML) 1 Page - Texas Instruments

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1
FEATURES
DESCRIPTION
APPLICATIONS
V
DD
SW
IN–
IN+
AGND
PGND
VOUT+
VOUT–
V
OUT
CC
V
IN
CC
10 F
m
22 F
m
1 F
m
ToBattery
Differential
Input
C
IN
C
IN
V
FB
CC
SDb
SDd
ShutDownBoost
ShutDownClassD
GAIN
Gain(V
/Float/GND)
CC
2.2to6.2 H
m
GPIO
1 F
m
R1
50k
R2
453k
TPA2014D1
TPA2014D1
www.ti.com ............................................................................................................................................................... SLAS559A – MAY 2008 – REVISED JUNE 2008
1.5-W CONSTANT OUTPUT POWER CLASS-D AUDIO AMPLIFIER WITH INTEGRATED
BOOST CONVERTER
• High Efficiency Integrated Boost Converter
(Over 90% Efficiency)
The TPA2014D1 is a high efficiency Class-D audio
power amplifier with an integrated boost converter. It
• 1.5-W into an 8-Ω Load from a 3.6-V Supply
drives up to 1.5 W (10% THD+N) into a 8
Ω speaker
• Operates from 2.5 V to 5.5 V
from a 3.6 V supply. With 85% typical efficiency, the
• Efficient Class-D Prolongs Battery Life
TPA2014D1 helps extend battery life when playing
• Independent Shutdown for Boost Converter
audio.
and Class-D Amplifier
The built-in boost converter generates a higher
• Differential Inputs Reduce RF Common Noise
voltage rail for the Class-D amplifier. This provides a
louder audio output than a stand-alone amplifier
• Built-in INPUT Low Pass Filter Decreases RF
connected directly to the battery. It also maintains a
and Out of Band Noise Sensitivity
consistent loudness, regardless of battery voltage.
• Synchronized Boost and Class-D Eliminates
Additionally, the boost converter can be used to
Beat Frequencies
supply external devices.
• Thermal and Short-Circuit Protection
The TPA2014D1 has an integrated low pass filter to
• Available in 16-ball WCSP and 20-Lead QFN
improve RF rejection and reduce out-of-band noise,
Packages
increasing the signal to noise ratio (SNR). A built-in
PLL synchronizes the boost converter and Class-D
• 3 Selectable Gain Settings of 2 V/V, 6 V/V, and
switching
frequencies,
thus
eliminating
beat
10 V/V
frequencies and improving audio quality. All outputs
are fully protected against shorts to ground, power
supply, and output-to-output shorts.
• Cell Phones
• PDA
• GPS
• Portable Electronics
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.
PRODUCTION DATA information is current as of publication date.
Copyright © 2008, 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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