TPA6010A4 Datasheet, PDF (1/23 Pages) Texas Instruments – STEREO 2.7-W AUDIO POWER AMPLIFIER WITH BASS BOOST AND DC VOLUME CONTROL

TPA6010A4
www.ti.com
SLOS268B – JUNE 2000 – REVISED AUGUST 2004
STEREO 2.7-W AUDIO POWER AMPLIFIER WITH BASS BOOST AND
DC VOLUME CONTROL
FEATURES
• Compatible With PC 99 Desktop Line-Out Into
10-kΩ Load
• Compatible With PC 99 Portable Into 8-Ω Load
• Internal Gain Control, Which Eliminates
External Gain-Setting Resistors
• DC Volume and Gain Control Adjustable From
34 dB to -86 dB
• Bass Boost
• Buffered Docking Station Outputs
• 2.7-W/Ch Output Power Into 3-Ω Load
• PC-Beep Input
• Depop Circuitry
• Stereo Input MUX
• Fully Differential Input
• Low Supply Current and Shutdown Current
• Surface-Mount Power Packaging 28-Pin
TSSOP PowerPAD™
GND
LOUT−
BBENABLE
BYPASS
LIN
LHPIN
LLINEIN
PC-BEEP
RLINEIN
RHPIN
RIN
SHUTDOWN
HP/LINE
ROUT−
PWP PACKAGE
(TOP VIEW)
1
28
2
27
3
26
4
25
5
24
6
23
7
22
8
21
9
20
10
19
11
18
12
17
13
16
14
15
LOUT+
CLK
LDOCKOUT
PV_DD
BUFFGAIN
VOLUME
V_DD
BBIN
BBOUT
PV_DD
RDOCKOUT
SE/BTL
ROUT+
GND
DESCRIPTION
The TPA6010A4 is a stereo audio power amplifier in a 28-pin TSSOP thermally enhanced package capable of
delivering 2.7 W of continuous RMS output power into 3-Ω loads. When driving 1 W into 8-Ω speakers, the
TPA6010A4 has less than 0.22% THD+N across its specified frequency range.
The TPA6010A4 has several features optimized for notebook PCs including bass boost, docking station outputs,
dc volume control, and dc gain control.
The TPA6010A4 has a buffer and volume control gain stage that are set by dc voltages. The buffer has a
differential input and a differential output. The gain of the buffer, which is controlled by the dc voltage on the
BUFFGAIN terminal, is adjustable from -46 dB to 14 dB. The docking station output is 6 dB lower than the buffer
gain because the buffer has a differential output and the docking station output is taken from just one of the
buffer outputs. The volume control amplifier is adjustable from -34 dB to 20 dB in BTL mode and is 6 dB lower in
SE mode. The volume control stage is adjustable by dc voltage on the VOLUME terminal. The amplifier gain
from input-to-speaker is the sum of the volume control and the buffer gain. The input-to-speaker gain is
adjustable from -86 dB to 34 dB in BTL mode and -92 dB to 28 dB in the SE mode.
The bass boost of the amplifier sums the right and left inputs, adds gain, filters out the high frequencies, and
then adds the bass boost signal back into the output power amplifier. The frequency of the bass boost is
adjusted by adding an RC filter from BBOUT to BBIN. The gain of the bass boost is set to 12 dB if the same
bass is present in both the right and left channels. If the bass is present in just one of the channels, the gain of
the bass is set to 9.5 dB. The gain can be reduced by adding a voltage divider from BBIN to BBOUT. If not using
the bass boost, pull the BBENABLE pin low.
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.
PowerPAD is a trademark of Texas Instruments.
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 © 2000–2004, Texas Instruments Incorporated