TPA2026D2 Datasheet, PDF (1/36 Pages) Texas Instruments – 3.2-W/Ch Stereo Class-D Audio Amplifier with Fast Gain Ramp SmartGain™ AGC/DRC

TPA2026D2
YZH
www.ti.com
SLOS649 – MARCH 2010
3.2-W/Ch Stereo Class-D Audio Amplifier with Fast Gain Ramp SmartGain™ AGC/DRC
Check for Samples: TPA2026D2
FEATURES
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•23 Fast AGC Start-up Time: 5 ms
• Pin-Out Compatible with TPA2016D2
• Filter-Free Class-D Architecture
• 3.2 W/Ch Into 4 Ω at 5 V (10% THD+N)
• 750 mW/Ch Into 8 Ω at 3.6 V (10% THD+N)
• Power Supply Range: 2.5 V to 5.5 V
• Flexible Operation With/Without I²C
• Programmable DRC/AGC Parameters
• Digital I²C Volume Control
• Selectable Gain from 0 dB to 30 dB in 1-dB
Steps
• Selectable Attack, Release and Hold Times
• 4 Selectable Compression Ratios
• Low Supply Current: 3.5 mA
• Low Shutdown Current: 0.2 mA
• High PSRR: 80 dB
• AGC Enable/Disable Function
• Limiter Enable/Disable Function
• Short-Circuit and Thermal Protection
• Space-Saving Package
– 2,2 mm × 2,2 mm Nano-Free™ WCSP (YZH)
APPLICATIONS
• Wireless or Cellular Handsets and PDAs
• Portable Navigation Devices
• Portable DVD Player
• Notebook PCs
• Portable Radio
• Portable Games
• Educational Toys
• USB Speakers
DESCRIPTION
The TPA2026D2 is a stereo, filter-free Class-D audio
power amplifier with volume control, dynamic range
compression (DRC) and automatic gain control
(AGC). It is available in a 2.2 mm x 2.2 mm WCSP
package.
The DRC/AGC function in the TPA2026D2 is
programmable via a digital I²C interface. The
DRC/AGC function can be configured to automatically
prevent distortion of the audio signal and enhance
quiet passages that are normally not heard. The
DRC/AGC can also be configured to protect the
speaker from damage at high power levels and
compress the dynamic range of music to fit within the
dynamic range of the speaker. The gain can be
selected from 0 dB to +30 dB in 1-dB steps. The
TPA2026D2 is capable of driving 3.2 W/Ch at 5 V
into an 4-Ω load or 750 mW/Ch at 3.6 V into an 8-Ω
load. The device features independent software
shutdown controls for each channel and also provides
thermal and short circuit protection. The TPA2026D2
has faster AGC gain ramp during start-up than
TPA2026D2.
In addition to these features, a fast start-up time and
small package size make the TPA2026D2 an ideal
choice for cellular handsets, PDAs, and other
portable applications.
SIMPLIFIED APPLICATION DIAGRAM
To Battery
Analog
Baseband
or
Codec
10 mF
AVDD PVDDL PVDDR
C_IN 1 mF
INL–
INL+
INR–
INR+
TPA2026D2
OUTL+
OUTL–
OUTR+
Digital
Baseband
2
I C Clock
2
I C Data
SCL
SDA
Master Shutdown _SDZ
AGND
OUTR–
PGND
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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.
SmartGain, Nano-Free are trademarks of Texas Instruments.
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All other trademarks are the property of their respective owners.
3
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2010, Texas Instruments Incorporated