Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLinear ICsLinear IC - Audio amplifier Headphones (2-channel, stereo) Class G DSBGA 16 (1.56x1.56)

INR+

INR-

INL+

INL-

AGND

SGND

OUTR

HPVSS

CPP

CPN

HPVDD

OUTL

TPA6141A2

Vbat

CODEC

OUTR+

OUTR-

OUTL+

OUTL-

1 Fm

GAIN

AVDD

GAIN

2.2 Hm

2.2 Fm

1 Fm

2.2 Fm

TPA6141A2

www.ti.com

.................................................................................................................................................... SLOS634A –MARCH 2009–REVISED AUGUST 2009

CLASS-G DIRECTPATH™ STEREO HEADPHONE AMPLIFIER

Check for Samples: TPA6141A2

FEATURES

DESCRIPTION

• TI Class-G Technology Significantly Prolongs

The TPA6141A2 (also known as TPA6141) is a

Battery Life and Music Playback Time

Class-G DirectPath™ stereo headphone amplifier

with selectable gain. Class-G technology maximizes

– 0.6 mA / Ch Quiescent Current

battery life by adjusting the voltage supplies of the

– 50% to 80% Lower Quiescent Current Than

headphone amplifier based on the audio signal level.

Ground-Referenced Class-AB Headphone

At low level audio signals, the internal supply voltage

Amplifiers

is reduced to minimize power dissipation.

• DirectPath

Technology Eliminates Large

DirectPath

technology eliminates external

DC-blocking capacitors.

Output DC-Blocking Capacitors

– Outputs Biased at 0 V

The device features fully differential inputs with an

integrated low pass filter to reduce system noise

– Improves Low Frequency Audio Fidelity

pickup between the audio source and the headphone

• Active Click and Pop Suppression

amplifier and to reduce DAC out–of–band noise. The

• Fully Differential Inputs Reduce System Noise

high power supply noise rejection performance and

differential architecture provides increased RF noise

– Also Configurable as Single-Ended Inputs

immunity. For single–ended input signals, connect

• SGND Pin Eliminates Ground Loop Noise

INL+ and INR+ to ground.

• Wide Power Supply Range: 2.5 V to 5.5 V

The device operates from a 2.5 V to 5.5 V supply

• 100 dB Power Supply Noise Rejection

voltage. Class-G operation keeps total supply current

• Built-in Input Low Pass Filter

below 5.0 mA while delivering 500 μW per channel

into 32 Ω. Shutdown mode reduces the supply

• Gain Settings: 0 dB and 6dB

current to less than 3 μA and is activated through the

• Short-Circuit Current Limiter

EN pin.

• Thermal-Overload Protection

The device has built-in pop suppression circuitry to

• ±8 kV HBM ESD Protected Outputs

completely eliminate disturbing pop noise during

• 0,4 mm Pitch, 1,6 mm × 1,6 mm 16-Bump

turn-on and turn-off. The amplifier outputs have

WCSP (YFF) Package

short-circuit and thermal-overload protection along

with ±8 kV HBM ESD protection, simplifying end

equipment compliance to the IEC 61000-4-2 ESD

APPLICATIONS

standard.

• Cellular Phones / Music Phones

• Smart Phones

• Portable Media / MP3 Players

• Portable CD / DVD Players

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.

2Class-G DirectPath, DirectPath are trademarks 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.

Summary of content (23 pages)

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TPA6141A2 www.ti.com.................................................................................................................................................... SLOS634A – MARCH 2009 – REVISED AUGUST 2009 CLASS-G DIRECTPATH™ STEREO HEADPHONE AMPLIFIER Check for Samples: TPA6141A2 FEATURES DESCRIPTION • The TPA6141A2 (also known as TPA6141) is a Class-G DirectPath™ stereo headphone amplifier with selectable gain.
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TPA6141A2 SLOS634A – MARCH 2009 – REVISED AUGUST 2009.................................................................................................................................................... www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
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TPA6141A2 www.ti.com....................................................................................................................................................
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TPA6141A2 SLOS634A – MARCH 2009 – REVISED AUGUST 2009.................................................................................................................................................... www.ti.com ABSOLUTE MAXIMUM RATINGS (1) over operating free-air temperature range, TA = 25°C (unless otherwise noted) VALUE / UNIT Supply voltage, AVDD –0.3 V to 6.0 V Amplifier supply voltage, HPVDD VI –0.3 V to 2.0 V Input voltage (INR+, INR-, INL+, INL-) –0.3 V to HPVDD +0.
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TPA6141A2 www.ti.com.................................................................................................................................................... SLOS634A – MARCH 2009 – REVISED AUGUST 2009 ELECTRICAL CHARACTERISTICS TA = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS PSRR Power supply rejection ratio AVDD = 2.5 V to 5.5 V, inputs grounded, GAIN = 0 dB CMRR Common mode rejection ratio HPVDD = 1.3 V to 1.8 V, GAIN = 0 dB |IIH| High-level input current AVDD = 2.
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TPA6141A2 SLOS634A – MARCH 2009 – REVISED AUGUST 2009.................................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS TA = 25°C, AVDD (VDD) = 3.6 V, GAIN = 0 dB, CHPVDD = CHPVSS = 2.2 μF, CINPUT = CFLYING = 1 μF, Outputs out of phase TOTAL HARMONIC DISTORTION + NOISE vs OUTPUT POWER 9 8 7 6 5 4 3 2 1 0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 f = 1 kHz RL = 16 Ω VDD = 3.
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TPA6141A2 www.ti.com.................................................................................................................................................... SLOS634A – MARCH 2009 – REVISED AUGUST 2009 TYPICAL CHARACTERISTICS (continued) TA = 25°C, AVDD (VDD) = 3.6 V, GAIN = 0 dB, CHPVDD = CHPVSS = 2.2 μF, CINPUT = CFLYING = 1 μF, Outputs out of phase RL = 16 Ω VDD = 3.6 V PO = 1 mW per Channel PO = 10 mW per Channel 0.1 0.01 PO = 15 mW per Channel 0.
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TPA6141A2 SLOS634A – MARCH 2009 – REVISED AUGUST 2009.................................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS (continued) TA = 25°C, AVDD (VDD) = 3.6 V, GAIN = 0 dB, CHPVDD = CHPVSS = 2.2 μF, CINPUT = CFLYING = 1 μF, Outputs out of phase OUTPUT POWER vs LOAD RESISTANCE OUTPUT POWER vs LOAD RESISTANCE 50 50 VDD = 3.6 V 35 30 25 20 VDD = 2.5 V 15 10 30 25 20 15 VDD = 3.
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TPA6141A2 www.ti.com.................................................................................................................................................... SLOS634A – MARCH 2009 – REVISED AUGUST 2009 TYPICAL CHARACTERISTICS (continued) TA = 25°C, AVDD (VDD) = 3.6 V, GAIN = 0 dB, CHPVDD = CHPVSS = 2.2 μF, CINPUT = CFLYING = 1 μF, Outputs out of phase TOTAL POWER DISSIPATION vs TOTAL OUTPUT POWER OUTPUT VOLTAGE vs SUPPLY VOLTAGE 2.0 100 R L = 16Ω 10 R L = 32Ω RL = 600 Ω 1.6 RL = 1 kΩ 1.
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TPA6141A2 SLOS634A – MARCH 2009 – REVISED AUGUST 2009.................................................................................................................................................... www.ti.com APPLICATION INFORMATION APPLICATION CIRCUIT 1 mF OUTR+ INR+ OUTR- INR- OUTL+ INL+ OUTL- INL- CODEC OUTR TPA6141A2 OUTL SGND EN GAIN EN AGND GAIN Vbat AVDD 2.2 mH SW HPVDD HPVSS CPP 2.2 mF CPN 2.2 mF 1 mF Figure 25.
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TPA6141A2 www.ti.com.................................................................................................................................................... SLOS634A – MARCH 2009 – REVISED AUGUST 2009 CLASS-G HEADPHONE AMPLIFIER Class-G amplifiers use adaptive supply rails. The TPA6141A2 includes a built-in step-down converter to create the headphone amplifier positive supply voltage, HPVDD. A charge pump inverts HPVDD and creates the amplifier negative supply voltage, HPVSS.
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TPA6141A2 SLOS634A – MARCH 2009 – REVISED AUGUST 2009.................................................................................................................................................... www.ti.com INDUCTOR SELECTION The TPA6141A2 requires one inductor for its DC/DC converter. The following table lists recommended inductors. Inductors not shown on this table can be used if they have similar performance characteristics.
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TPA6141A2 www.ti.com.................................................................................................................................................... SLOS634A – MARCH 2009 – REVISED AUGUST 2009 HEADPHONE AMPLIFIERS Single-supply headphone amplifiers typically require dc-blocking capacitors to remove dc bias from their output voltage. The top drawing in Figure 28 illustrates this connection.
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TPA6141A2 SLOS634A – MARCH 2009 – REVISED AUGUST 2009.................................................................................................................................................... www.ti.com Conventional CO VOUT CO VOUT GND Capless VOUT VOUT GND VBIAS DirectPath™ VDD VOUT GND VSS Figure 28.
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TPA6141A2 www.ti.com.................................................................................................................................................... SLOS634A – MARCH 2009 – REVISED AUGUST 2009 RF AND POWER SUPPLY NOISE IMMUNITY The TPA6141A2 employs a new differential amplifier architecture to achieve high power supply noise rejection and RF noise rejection. RF and power supply noise are common in modern electronics.
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TPA6141A2 SLOS634A – MARCH 2009 – REVISED AUGUST 2009.................................................................................................................................................... www.ti.com POWER SUPPLY AND HPVDD DECOUPLING CAPACITORS AND CONNECTIONS The TPA6141A2 DirectPath headphone amplifier requires adequate power supply decoupling to ensure that output noise and total harmonic distortion (THD) remain low.
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TPA6141A2 www.ti.com.................................................................................................................................................... SLOS634A – MARCH 2009 – REVISED AUGUST 2009 Copper Trace Width Solder Pad Width Solder Mask Opening Solder Mask Thickness Copper Trace Thickness Figure 29. Land Pattern Dimensions Table 1.
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TPA6141A2 SLOS634A – MARCH 2009 – REVISED AUGUST 2009.................................................................................................................................................... www.ti.com TRACE WIDTH Recommended trace width at the solder balls is 75 μm to 100 μm to prevent solder wicking onto wider PCB traces.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE MATERIALS INFORMATION www.ti.com 28-Sep-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) TPA6141A2YFFR DSBGA YFF 16 3000 180.0 8.4 TPA6141A2YFFR DSBGA YFF 16 3000 180.0 TPA6141A2YFFT DSBGA YFF 16 250 180.0 TPA6141A2YFFT DSBGA YFF 16 250 180.0 1.71 1.71 0.81 4.0 8.0 Q1 8.4 1.71 1.71 0.81 4.0 8.0 Q1 8.4 1.71 1.71 0.81 4.0 8.
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PACKAGE MATERIALS INFORMATION www.ti.com 28-Sep-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPA6141A2YFFR DSBGA YFF 16 3000 182.0 182.0 17.0 TPA6141A2YFFR DSBGA YFF 16 3000 220.0 220.0 34.0 TPA6141A2YFFT DSBGA YFF 16 250 220.0 220.0 34.0 TPA6141A2YFFT DSBGA YFF 16 250 182.0 182.0 17.
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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.