
YZH
AVDD
INL–
INL+
AGND
PGND
OUTL+
OUTL–
PVDDR
10 F
m
ToBattery
SDA
INR–
INR+
C
1 F
IN
m
OUTR+
OUTR–
SCL
SDZ
I CClock
2
I CData
2
MasterShutdown
TPA2026D2
Digital
Baseband
Analog
Baseband
or
Codec
PVDDL
www.ti.com
SLOS649A – MARCH 2010 – REVISED JANUARY 2011
3.2-W/Ch Stereo Class-D Audio Amplifier with Fast Gain Ramp SmartGain AGC/DRC
1
FEATURES
DESCRIPTION
23
Fast AGC Start-up Time: 5 ms
The TPA2026D2 is a stereo, filter-free Class-D audio
power amplifier with volume control, dynamic range
Pin-Out Compatible with TPA2016D2
compression (DRC) and automatic gain control
Filter-Free Class-D Architecture
(AGC). It is available in a 2.2 mm x 2.2 mm WCSP
3.2 W/Ch Into 4
at 5 V (10% THD+N)
package.
750 mW/Ch Into 8
at 3.6 V (10% THD+N)
The
DRC/AGC
function
in
the
TPA2026D2
is
Power Supply Range: 2.5 V to 5.5 V
programmable
via
a
digital
I2C
interface.
The
DRC/AGC function can be configured to automatically
Flexible Operation With/Without I2C
prevent distortion of the audio signal and enhance
Programmable DRC/AGC Parameters
quiet passages that are normally not heard. The
Digital I2C Volume Control
DRC/AGC can also be configured to protect the
Selectable Gain from 0 dB to 30 dB in 1-dB
speaker from damage at high power levels and
compress the dynamic range of music to fit within the
Steps
dynamic range of the speaker. The gain can be
Selectable Attack, Release and Hold Times
selected from 0 dB to +30 dB in 1-dB steps. The
4 Selectable Compression Ratios
TPA2026D2 is capable of driving 3.2 W/Ch at 5 V
into an 4-
load or 750 mW/Ch at 3.6 V into an 8-
Low Supply Current: 3.5 mA
load. The device features independent software
Low Shutdown Current: 0.2 mA
shutdown controls for each channel and also provides
High PSRR: 80 dB
thermal and short circuit protection. The TPA2026D2
AGC Enable/Disable Function
has faster AGC gain ramp during start-up than
TPA2026D2.
Limiter Enable/Disable Function
In addition to these features, a fast start-up time and
Short-Circuit and Thermal Protection
small package size make the TPA2026D2 an ideal
Space-Saving Package
choice
for
cellular
handsets,
PDAs,
and
other
–
2,2 mm × 2,2 mm Nano-Free WCSP (YZH)
portable applications.
APPLICATIONS
SIMPLIFIED APPLICATION DIAGRAM
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.
2
SmartGain, Nano-Free are trademarks of Texas Instruments.
3
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright 2010–2011, 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.