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TPA2017D2RTJR Scheda tecnica(PDF) 1 Page - Texas Instruments

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Il numero della parte TPA2017D2RTJR
Spiegazioni elettronici  2.8-W/Ch Stereo Class-D Audio Amplifier with SmartGainTM Dynamic Range Compression and AGC
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Produttore elettronici  TI [Texas Instruments]
Homepage  http://www.ti.com
Logo TI - Texas Instruments

TPA2017D2RTJR Scheda tecnica(HTML) 1 Page - Texas Instruments

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1
FEATURES
DESCRIPTION
APPLICATIONS
SIMPLIFIED APPLICATION DIAGRAM
AVdd
INL-
INL+
AGND
PGND
OUTL+
OUTL-
PVddR
10 F
m
ToBattery
AGC2
INR-
INR+
C
1 F
IN
m
OUTR+
OUTR-
AGC1
EN
Enable1
Enable2
MasterShutdown
TPA2017D2
(optional)
Digital
BaseBand
Analog
Baseband
or
CODEC
PVddL
TPA2017D2
www.ti.com ..................................................................................................................................................................................................... SLOS584 – APRIL 2009
2.8-W/Ch Stereo Class-D Audio Amplifier with SmartGainTM Dynamic Range Compression
and AGC
• Filter-Free Class-D Architecture
The
TPA2017D2
(sometimes
referred
to
as
TPA2017) is a stereo, filter-free Class-D audio power
• 3 SmartGainTM functions
amplifier
with
SmartGainTM
dynamic
range
AGC DRC Function
compression (DRC), automatic gain control (AGC),
AGC Limiter Function
and noise gate. It is available in a 4 mm x 4mm QFN
AGC Noise Gate Function
package.
• 1.7 W/Ch Into 8 Ω at 5 V (10% THD+N)
SmartGainTM
functions
are
configured
to
automatically prevent distortion of the audio signal
• 750 mW/Ch Into 8 Ω at 3.6 V (10% THD+N)
and enhance quiet passages that are normally not
• 2.8 W/Ch Into 4 Ω at 5 V (10% THD+N)
heard. SmartGainTM is a combined AGC DRC and
• 1.5 W/Ch Into 4 Ω at 3.6 V (10% THD+N)
Limiter that protects the speaker from damage at high
• Power Supply Range: 2.5 V to 5.5 V
power levels and compress the dynamic range of
voice or music to fit within the dynamic range of the
• Low Supply Current: 3.5 mA
speaker. SmartGainTM DRC, limiter, and noise gate
• Low Shutdown Current: 0.2 µA
functions
can
be
enabled
or
disabled.
The
• High PSRR: 75 dB at 217 Hz
TPA2017D2 (TPA2017) is capable of driving 1.7
W/Ch at 4 V or 750mW/Ch at 3.6 V into 8
Ω load or
• Fast Start-up Time: 5 ms
2.8 W/Ch at 5 V or 1.5 W/Ch at 3.6 V into 4
Ω. The
• Short-Circuit and Thermal Protection
device features an enable pin and also provides
• Space-Saving Package
thermal and short circuit protection.
4 mm × 4 mm QFN (RTJ)
In addition to these features, a fast start-up time and
small package size make the TPA2017D2 (TPA2017)
an ideal choice for Notebook PCs, PDAs and other
portable applications.
• Wireless or Cellular Handsets and PDAs
• Portable Navigation Devices
• Portable DVD Player
• Notebook PCs
• Portable Radio
• Portable Games
• Educational Toys
• USB Speakers
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 © 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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