Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLinear ICsLinear IC - Audio amplifier 2-channel (stereo) with stereo headphones Class AB HTSSOP 24

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FEATURES DESCRIPTION

APPLICATIONS

APPLICATION CIRCUIT

PGND

ROUT-

RHPIN

RLINEIN

RIN

LIN

LLINEIN

LHPIN

LOUT-

ROUT+

SE/BTL

HP/LINE

VOLUME

SEDIFF

SEMAX

AGND

BYPASS

FADE

SHUTDOWN

LOUT+

PGND

Right HP

Audio Source

Power Supply

Right Line

Audio Source

Left Line

Audio Source

Left HP

Audio Source

Power Supply

100 kΩ

In From DAC

Potentiometer

(DC Voltage)

(BYP)

System

Control

Right

Speaker

Left

Speaker

Headphone

1 kΩ

-90

-80

-70

-60

-50

-40

-30

-20

-10

0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5

Volume [Pin 21] - V

DC VOLUME CONTROL

SE Volume,

SEDIFF [Pin 20] = 0 V

SE Volume,

SEDIFF [Pin 20] = 1 V

Volume - dB

BTL Volume

BTL Volume (dB) ∝ Volume (V)

SE Volume (dB) ∝ Volume (V) - SEDIFF

(V)

TPA6011A4

SLOS392A – FEBRUARY 2002 – REVISED JULY 2004

3-W STEREO AUDIO POWER AMPLIFIER

WITH ADVANCED DC VOLUME CONTROL

• Advanced DC Volume Control With 2-dB

The TPA6011A4 is a stereo audio power amplifier

Steps

that drives 3 W/channel of continuous RMS power

From -40 dB to 20 dB

into a 3- Ω load. Advanced dc volume control

minimizes external components and allows BTL

– Fade Mode

(speaker) volume control and SE (headphone) vol-

– Maximum Volume Setting for SE Mode

ume control. Notebook and pocket PCs benefit from

– Adjustable SE Volume Control

the integrated feature set that minimizes external

Referenced to BTL Volume Control

components without sacrificing functionality.

• 3 W Into 3- Ω Speakers

To simplify design, the speaker volume level is

adjusted by applying a dc voltage to the VOLUME

• Stereo Input MUX

terminal. Likewise, the delta between speaker volume

• Differential Inputs

and headphone volume can be adjusted by applying

a dc voltage to the SEDIFF terminal. To avoid an

unexpected high volume level through the

• Notebook PC

headphones, a third terminal, SEMAX, limits the

• LCD Monitors

headphone volume level when a dc voltage is ap-

plied. Finally, to ensure a smooth transition between

• Pocket PC

active and shutdown modes, a fade mode ramps the

volume up and down.

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.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (38 pages)

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TPA6011A4 www.ti.
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TPA6011A4 www.ti.com SLOS392A – FEBRUARY 2002 – REVISED JULY 2004 AVAILABLE OPTIONS PACKAGE TA 24-PIN TSSOP (PWP) (1) 40°C to 85°C (1) TPA6011A4PWP The PWP package is available taped and reeled. To order a taped and reeled part, add the suffix R to the part number (e.g., TPA6011A4PWPR). ABSOLUTE MAXIMUM RATINGS over operating free-air temperature range (unless otherwise noted) (1) UNIT VSS Supply voltage, VDD, PVDD VI Input voltage -0.3 V to 6 V -0.3 V to VDD+0.
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TPA6011A4 www.ti.com SLOS392A – FEBRUARY 2002 – REVISED JULY 2004 ELECTRICAL CHARACTERISTICS TA = 25°C, VDD = PVDD = 5.5 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VDD = 5.5 V, Gain = 0 dB, SE/BTL = 0 V 30 mV VDD = 5.5 V, Gain = 20 dB, SE/BTL = 0 V 50 mV | VOO | Output offset voltage (measured differentially) PSRR Power supply rejection ratio VDD = PVDD = 4.0 V to 5.
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TPA6011A4 www.ti.com SLOS392A – FEBRUARY 2002 – REVISED JULY 2004 PWP PACKAGE (TOP VIEW) PGND ROUTPVDD RHPIN RLINEIN RIN VDD LIN LLINEIN LHPIN PVDD LOUT- 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 ROUT+ SE/BTL HP/LINE VOLUME SEDIFF SEMAX AGND BYPASS FADE SHUTDOWN LOUT+ PGND Terminal Functions TERMINAL NAME PGND NO.
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TPA6011A4 www.ti.com SLOS392A – FEBRUARY 2002 – REVISED JULY 2004 FUNCTIONAL BLOCK DIAGRAM RHPIN RLINEIN R MUX _ _ + HP/LINE ROUT+ + RIN BYP BYP + _ _ ROUT- + EN BYP SE/BTL HP/LINE SE/BTL MUX Control PVDD PGND VDD Power Management VOLUME 32-Step Volume Control SEDIFF SEMAX SHUTDOWN AGND FADE LHPIN LLINEIN L MUX BYPASS _ _ HP/LINE + LOUT+ + LIN BYP BYP + _ _ LOUT- + BYP EN SE/BTL NOTE: All resistor wipers are adjusted with 32 step volume control.
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TPA6011A4 www.ti.com SLOS392A – FEBRUARY 2002 – REVISED JULY 2004 Table 1. DC Volume Control (BTL Mode, VDD = 5 V) (1) VOLUME (PIN 21) (1) (2) 6 FROM (V) TO (V) GAIN OF AMPLIFIER (Typ) 0.00 0.26 -85 (2) 0.33 0.37 -40 0.44 0.48 -38 0.56 0.59 -36 0.67 0.70 -34 0.78 0.82 -32 0.89 0.93 -30 1.01 1.04 -28 1.12 1.16 -26 1.23 1.27 -24 1.35 1.38 -22 1.46 1.49 -20 1.57 1.60 -18 1.68 1.72 -16 1.79 1.83 -14 1.91 1.94 -12 2.02 2.06 -10 2.13 2.17 -8 2.25 2.
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TPA6011A4 www.ti.com SLOS392A – FEBRUARY 2002 – REVISED JULY 2004 Table 2. DC Volume Control (SE Mode, VDD = 5 V) (1) SE_VOLUME = VOLUME - SEDIFF or SEMAX (1) (2) FROM (V) TO (V) GAIN OF AMPLIFIER (Typ) 0.00 0.26 -85 (2) 0.33 0.37 -46 0.44 0.48 -44 0.56 0.59 -42 0.67 0.70 -40 0.78 0.82 -38 0.89 0.93 -36 1.01 1.04 -34 1.12 1.16 -32 1.23 1.27 -30 1.35 1.38 -28 1.46 1.49 -26 1.57 1.60 -24 1.68 1.72 -22 1.79 1.83 -20 1.91 1.94 -18 2.02 2.06 -16 2.13 2.
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TPA6011A4 www.ti.
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TPA6011A4 www.ti.com SLOS392A – FEBRUARY 2002 – REVISED JULY 2004 10 VDD = 5 V RL = 8 Ω Gain = 20 dB BTL 5 2 1 PO = 0.25 W 0.5 PO = 0.5 W 0.2 0.1 0.05 0.02 0.01 PO = 1 W 20 50 100 200 500 1k 2k TOTAL HARMONIC DISTORTION + NOISE (SE) vs FREQUENCY THD+N − Total Harmonic Distortion + Noise (SE) − % THD+N − Total Harmonic Distortion + Noise (BTL) − % TOTAL HARMONIC DISTORTION + NOISE (BTL) vs FREQUENCY 5 k 10 k 20 k 10 VDD = 5 V RL = 32 Ω Gain = 14 dB SE 5 2 1 0.5 0.2 0.1 0.05 PO = 75 mW 0.
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TPA6011A4 www.ti.com SLOS392A – FEBRUARY 2002 – REVISED JULY 2004 VDD = 5 V RL = 4 Ω Gain = 20 dB BTL 5 2 1 20 kHz 0.5 0.2 1 kHz 0.1 20 Hz 0.05 0.02 0.01 0.02 0.05 0.1 0.2 0.5 1 PO − Output Power − W 5 10 VDD = 5 V RL = 8 Ω Gain = 20 dB BTL 5 2 1 0.5 20 kHz 0.2 0.1 1 kHz 0.05 20 Hz 0.02 0.01 0.02 0.05 0.1 0.2 0.5 1 PO − Output Power − W 2 Figure 7. Figure 8.
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TPA6011A4 www.ti.com SLOS392A – FEBRUARY 2002 – REVISED JULY 2004 CLOSED LOOP RESPONSE 20 Closed Loop Gain − dB 10 Gain 150 30 120 20 120 90 10 90 0 60 −10 30 0 60 −10 30 −20 0 Phase −30 −30 −40 −60 −50 −20 −90 −120 −60 −70 −150 −70 100 1k 10 k f − Frequency − Hz 100 k −90 VDD = 5 Vdc RL = 8 Ω Mode = BTL Gain = 20 dB 100 −120 −150 1k 10 k −180 1M 100 k f − Frequency − Hz Figure 11. Figure 12.
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TPA6011A4 www.ti.com SLOS392A – FEBRUARY 2002 – REVISED JULY 2004 SUPPLY CURRENT vs SUPPLY VOLTAGE SUPPLY CURRENT vs SUPPLY VOLTAGE 450 7 Mode = SE SHUTDOWN = VDD TA = 125°C I DD − Supply Current − nA IDD − Supply Current − mA 6 5 4 TA = 25°C 3 2 1 TA = 125°C 300 250 200 150 TA = −40°C TA = 25°C 50 0 0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 VDD − Supply Voltage − V 5 5.5 0 0.5 1 1.5 2 2.5 3 3.5 VDD − Supply Voltage − V 4 Figure 15. Figure 16.
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TPA6011A4 www.ti.com SLOS392A – FEBRUARY 2002 – REVISED JULY 2004 OUTPUT POWER vs LOAD RESISTANCE OUTPUT POWER vs LOAD RESISTANCE 2.2 3.2 1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 0 8 16 24 32 40 48 RL − Load Resistance − Ω 56 64 −20 1.2 1 0.
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TPA6011A4 www.ti.com SLOS392A – FEBRUARY 2002 – REVISED JULY 2004 POWER SUPPLY REJECTION RATIO (BTL) vs FREQUENCY 0 −10 HP/Line Attenuation − dB −20 −30 VDD = 5 V VI = 1 VRMS RL = 8 Ω BTL −40 −50 −60 −70 HP Active −80 −90 Line Active −100 −110 −120 20 100 1k PSRR − Power Supply Rejection Ratio (BTL) − dB HP/LINE ATTENUATION vs FREQUENCY 0 VDD = 5 V RL = 8 Ω C(BYP) =0.
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TPA6011A4 www.ti.com SLOS392A – FEBRUARY 2002 – REVISED JULY 2004 OUTPUT NOISE VOLTAGE vs FREQUENCY V n − Output Noise Voltage − µ V RMS 180 160 140 VDD = 5 V BW = 22 Hz to 22 kHz RL = 8 Ω BTL 120 Gain = 20 dB 100 80 60 Gain = 0 dB 40 20 0 10 100 1k 10 k 20 k f − Frequency − Hz Figure 27.
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TPA6011A4 www.ti.com SLOS392A – FEBRUARY 2002 – REVISED JULY 2004 APPLICATION INFORMATION SELECTION OF COMPONENTS Figure 28 and Figure 29 are schematic diagrams of typical notebook computer application circuits.
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TPA6011A4 www.ti.
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TPA6011A4 www.ti.com SLOS392A – FEBRUARY 2002 – REVISED JULY 2004 APPLICATION INFORMATION (continued) 4 RHPIN 5 RLINEIN R MUX _ _ ROUT+ + 22 6 HP/LINE 24 + Input MUX Control Bypass RIN Bypass VDD + _ _ ROUT- 2 + Bypass 100 kΩ CO 330 µF 1 kΩ EN SE/BTL 23 100 kΩ LOUT+ Figure 30. TPA6011A4 Resistor Divider Network Circuit Using a 1/8-in. (3,5 mm) stereo headphone jack, the control switch is closed when no plug is inserted.
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TPA6011A4 www.ti.com SLOS392A – FEBRUARY 2002 – REVISED JULY 2004 Table 3. HP/LINE, SE/BTL, and Shutdown Functions INPUTS (1) (1) AMPLIFIER STATE HP/LINE SE/BTL SHUTDOWN INPUT OUTPUT X X Low X Mute Low Low High Line BTL Low High High Line SE High Low High HP BTL High High High HP SE Inputs should never be left unconnected.
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TPA6011A4 www.ti.com SLOS392A – FEBRUARY 2002 – REVISED JULY 2004 Device Shutdown Device Shutdown ROUT+ ROUT+ Figure 31. Shutdown Sequence in the Fade-on Mode Figure 32. Shutdown Sequence in the Fade-off Mode VOLUME, SEDIFF, AND SEMAX OPERATION Three pins labeled VOLUME, SEDIFF, and SEMAX control the BTL volume when driving speakers and the SE volume when driving headphones. All of these pins are controlled with a dc voltage, which should not exceed VDD.
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TPA6011A4 www.ti.com SLOS392A – FEBRUARY 2002 – REVISED JULY 2004 actually changes, is different depending on whether the voltage is increased or decreased as a result of the hysteresis about each trip point. The gaps in Table 1 and Table 2 can also be thought of as indeterminate states where the gain could be in the next higher gain step or the lower gain step depending on the direction the voltage is changing.
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TPA6011A4 www.ti.com SLOS392A – FEBRUARY 2002 – REVISED JULY 2004 INPUT RESISTANCE Each gain setting is achieved by varying the input resistance of the amplifier, which can range from its smallest value to over six times that value. As a result, if a single capacitor is used in the input high-pass filter, the -3 dB or cutoff frequency also changes by over six times. Rf C Ri IN Input Signal Figure 35.
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TPA6011A4 www.ti.com SLOS392A – FEBRUARY 2002 – REVISED JULY 2004 POWER SUPPLY DECOUPLING, C(S) The TPA6011A4 is a high-performance CMOS audio amplifier that requires adequate power supply decoupling to ensure the output total harmonic distortion (THD) is as low as possible. Power supply decoupling also prevents oscillations for long lead lengths between the amplifier and the speaker.
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TPA6011A4 www.ti.com SLOS392A – FEBRUARY 2002 – REVISED JULY 2004 As Table 4 indicates, most of the bass response is attenuated into a 4-Ω load, an 8-Ω load is adequate, headphone response is good, and drive into line level inputs (a home stereo for example) is exceptional. USING LOW-ESR CAPACITORS Low-ESR capacitors are recommended throughout this applications section. A real (as opposed to ideal) capacitor can be modeled simply as a resistor in series with an ideal capacitor.
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TPA6011A4 www.ti.com SLOS392A – FEBRUARY 2002 – REVISED JULY 2004 In a typical computer sound channel operating at 5 V, bridging raises the power into an 8-Ω speaker from a singled-ended (SE, ground reference) limit of 250 mW to 1 W. In sound power that is a 6-dB improvement, which is loudness that can be heard. In addition to increased power there are frequency response concerns. Consider the single-supply SE configuration shown in Figure 37.
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TPA6011A4 www.ti.com SLOS392A – FEBRUARY 2002 – REVISED JULY 2004 IDD VO IDD(avg) V(LRMS) Figure 38. Voltage and Current Waveforms for BTL Amplifiers Although the voltages and currents for SE and BTL are sinusoidal in the load, currents from the supply are very different between SE and BTL configurations. In an SE application the current waveform is a half-wave rectified shape, whereas in BTL it is a full-wave rectified waveform. This means RMS conversion factors are different.
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TPA6011A4 www.ti.com SLOS392A – FEBRUARY 2002 – REVISED JULY 2004 Table 5. Efficiency vs Output Power in 5-V, 8-Ω BTL Systems (1) OUTPUT POWER (W) EFFICIENCY (%) PEAK VOLTAGE (V) INTERNAL DISSIPATION (W) 0.25 31.4 2.00 0.55 0.50 44.4 2.83 0.62 1.00 62.8 4.00 0.59 1.25 70.2 4.47 (1) 0.53 High peak voltages cause the THD to increase.
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TPA6011A4 www.ti.com SLOS392A – FEBRUARY 2002 – REVISED JULY 2004 Table 6. TPA6011A4 Power Rating, 5-V, 3-Ω Stereo PEAK OUTPUT POWER (W) AVERAGE OUTPUT POWER POWER DISSIPATION (W/Channel) MAXIMUM AMBIENT TEMPERATURE 4 2 W (3 dB) 1.7 -3°C 4 1 W (6 dB) 1.6 6°C 4 500 mW (9 dB) 1.4 24°C 4 250 mW (12 dB) 1.1 51°C 4 125 mW (15 dB) 0.8 78°C 4 63 mW (18 dB) 0.6 96°C Table 7.
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THERMAL PAD MECHANICAL DATA www.ti.com PWP (R-PDSO-G24) THERMAL INFORMATION This PowerPAD™ package incorporates an exposed thermal pad that is designed to be attached directly to an external heatsink. When the thermal pad is soldered directly to the printed circuit board (PCB), the PCB can be used as a heatsink. In addition, through the use of thermal vias, the thermal pad can be attached directly to a ground plane or special heatsink structure designed into the PCB.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE MATERIALS INFORMATION www.ti.com 8-May-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device TPA6011A4PWPR Package Package Pins Type Drawing SPQ HTSSOP 2000 PWP 24 Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 330.0 16.4 Pack Materials-Page 1 6.95 B0 (mm) K0 (mm) P1 (mm) 8.3 1.6 8.0 W Pin1 (mm) Quadrant 16.
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PACKAGE MATERIALS INFORMATION www.ti.com 8-May-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPA6011A4PWPR HTSSOP PWP 24 2000 367.0 367.0 38.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.