Datasheet

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TPA152

75-mW STEREO AUDIO POWER AMPLIFIER

SLOS210A – JUNE 1998 – REVISED MARCH 2000

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

High-Fidelity Line-Out/HP Driver

75-mW Stereo Output

PC Power Supply Compatible

Pop Reduction Circuitry

Internal Mid-Rail Generation

Thermal and Short-Circuit Protection

Surface-Mount Packaging

Pin Compatible With TPA302

description

The TPA152 is a stereo audio power amplifier capable of less than 0.1% THD+N at 1 kHz when delivering

75 mW per channel into a 32-Ω load. THD+N is less than 0.2% across the audio band of 20 to 20 kHz. For

10 kΩ loads, the THD+N performance is better than 0.005% at 1 kHz, and less than 0.01% across the audio

band of 20 to 20 kHz.

The TPA152 is ideal for use as an output buffer for the audio CODEC in PC systems. It is also excellent for use

where a high-performance head phone/line-out amplifier is needed. Depop circuitry is integrated to reduce

transients during power up, power down, and mute mode.

Amplifier gain is externally configured by means of two resistors per input channel and does not require external

compensation for settings of 1 to 10. The TPA152 is packaged in the 8-pin SOIC (D) package that reduces board

space and facilitates automated assembly.

typical application circuit

Stereo

BYPASS

IN2–

IN1–

Stereo Audio

Input

Mute

Control

From System

Control

Depop

Circuitry

–

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

MUTE

BYPASS

IN2–

IN1–

GND

D PACKAGE

(TOP VIEW)

Summary of content (18 pages)

PAGE 1
TPA152 75-mW STEREO AUDIO POWER AMPLIFIER SLOS210A – JUNE 1998 – REVISED MARCH 2000 D D D D D D D D D PACKAGE (TOP VIEW) High-Fidelity Line-Out/HP Driver 75-mW Stereo Output PC Power Supply Compatible Pop Reduction Circuitry Internal Mid-Rail Generation Thermal and Short-Circuit Protection Surface-Mount Packaging Pin Compatible With TPA302 VO 1 MUTE BYPASS IN2– 1 8 2 7 3 6 4 5 IN1– GND VDD VO 2 description The TPA152 is a stereo audio power amplifier capable of less than 0.
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TPA152 75-mW STEREO AUDIO POWER AMPLIFIER SLOS210A – JUNE 1998 – REVISED MARCH 2000 AVAILABLE OPTIONS TA PACKAGED DEVICE SMALL OUTLINE TPA152D† – 40°C to 85°C † The D packages are available taped and reeled. To order a taped and reeled part, add the suffix R (e.g., TPA152DR) Terminal Functions TERMINAL I/O DESCRIPTION NAME NO. BYPASS 3 BYPASS is the tap to the voltage divider for internal mid-supply bias. This terminal should be connected to a 0.1-µF to 1-µF capacitor.
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TPA152 75-mW STEREO AUDIO POWER AMPLIFIER SLOS210A – JUNE 1998 – REVISED MARCH 2000 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)‡ Supply voltage, VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 V Input voltage , VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to VDD + 0.
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TPA152 75-mW STEREO AUDIO POWER AMPLIFIER SLOS210A – JUNE 1998 – REVISED MARCH 2000 ac operating characteristics VDD = 5 V, TA = 25°C, RL = 10 kΩ PARAMETER THD+N BOM kSVR TEST CONDITIONS MIN TYP VI = 1 V(rms), See Figure 6 20 Hz–20 kHz, Gain = 1, VO(PP) = 4 V, See Figure 8 20 Hz–20 kHz, Gain = 1, Maximum output power bandwidth G = 5, THD <0.
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TPA152 75-mW STEREO AUDIO POWER AMPLIFIER SLOS210A – JUNE 1998 – REVISED MARCH 2000 TYPICAL CHARACTERISTICS TOTAL HARMONIC DISTORTION PLUS NOISE vs OUTPUT POWER TOTAL HARMONIC DISTORTION PLUS NOISE vs FREQUENCY 2 THD+N –Total Harmonic Distortion + Noise – % THD+N –Total Harmonic Distortion + Noise – % 2 f = 1 kHz AV = –1 V/V 1 0.1 0.01 0.001 1 10 20 30 40 50 60 70 80 1 PO = 75 mW RL = 32 Ω AV = –5 V/V AV =– 2 V/V 0.1 AV = –1 V/V 0.01 0.
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TPA152 75-mW STEREO AUDIO POWER AMPLIFIER SLOS210A – JUNE 1998 – REVISED MARCH 2000 TYPICAL CHARACTERISTICS TOTAL HARMONIC DISTORTION PLUS NOISE vs OUTPUT VOLTAGE TOTAL HARMONIC DISTORTION PLUS NOISE vs FREQUENCY 0.1 THD+N –Total Harmonic Distortion + Noise – % THD+N –Total Harmonic Distortion + Noise – % 2 f = 1 kHz AV = –1 V/V RL = 10 kΩ 1 0.1 0.01 0.001 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 VO = 1 V(rms) RL = 10 kΩ AV = –5 V/V 0.01 AV = –2 V/V AV = –1 V/V 0.001 20 1.
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TPA152 75-mW STEREO AUDIO POWER AMPLIFIER SLOS210A – JUNE 1998 – REVISED MARCH 2000 TYPICAL CHARACTERISTICS TOTAL HARMONIC DISTORTION PLUS NOISE vs FREQUENCY OUTPUT NOISE VOLTAGE vs FREQUENCY 20 VI = 1 V(rms) AV = –1 V/V Vn – Output Noise Voltage – µV THD+N –Total Harmonic Distortion + Noise – % 0.1 RL = 32 Ω 0.01 RL = 10,47, and 100 kΩ 0.
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TPA152 75-mW STEREO AUDIO POWER AMPLIFIER SLOS210A – JUNE 1998 – REVISED MARCH 2000 TYPICAL CHARACTERISTICS CROSSTALK vs FREQUENCY CROSSTALK vs FREQUENCY –60 –70 VO = 1 V VDD = 5 V RL = 10 kΩ CB = 1 µF AV = –1 V/V –70 –80 –80 Crosstalk – dB Crosstalk – dB –60 PO = 75 mW VDD = 5 V RL = 32 Ω CB = 1 µF AV = –1 V/V –90 Right to Left –90 –100 Right to Left –100 –110 –110 –120 Left to Right –120 20 Left to Right 100 1k 10k 20k –130 20 100 1k f – Frequency – Hz f – Frequency – Hz Figure
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TPA152 75-mW STEREO AUDIO POWER AMPLIFIER SLOS210A – JUNE 1998 – REVISED MARCH 2000 TYPICAL CHARACTERISTICS OPEN-LOOP GAIN AND PHASE vs FREQUENCY 100 No Load 140 120 60 100 40 80 20 60 Phase – ° Open-Loop Gain – dB 80 160 40 0 20 –20 100 1k 100k 10k 1M 10M 0 100M f – Frequency – Hz Figure 16 CLOSED-LOOP GAIN AND PHASE vs FREQUENCY 1 185 0.8 180 0.4 175 0.2 0 170 –0.2 Phase – ° Closed-Loop Gain – dB 0.6 165 –0.4 RI = 20 kΩ Rf = 20 kΩ RL = 32 Ω CI = 1 µF AV = –1 V/V –0.6 –0.
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TPA152 75-mW STEREO AUDIO POWER AMPLIFIER SLOS210A – JUNE 1998 – REVISED MARCH 2000 TYPICAL CHARACTERISTICS CLOSED-LOOP GAIN AND PHASE vs FREQUENCY 1 185 0.8 180 0.4 175 0.2 0 170 –0.2 Phase – ° Closed-Loop Gain – dB 0.6 165 –0.4 RI = 20 kΩ Rf = 20 kΩ RL = 10 kΩ CI = 1 µF AV = –1 V/V –0.6 –0.
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TPA152 75-mW STEREO AUDIO POWER AMPLIFIER SLOS210A – JUNE 1998 – REVISED MARCH 2000 TYPICAL CHARACTERISTICS POWER DISSIPATION vs OUTPUT POWER 100 P D – Power Dissipation – mW RL = 32 Ω 80 60 40 20 0 0 5 10 15 20 25 PO – Output Power – mW Figure 21 APPLICATION INFORMATION selection of components Figure 22 is a schematic diagram of a typical application circuit.
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TPA152 75-mW STEREO AUDIO POWER AMPLIFIER SLOS210A – JUNE 1998 – REVISED MARCH 2000 APPLICATION INFORMATION ǒǓ gain setting resistors, RF and RI The gain for the TPA152 is set by resistors RF and RI according to equation 1. Gain +* RF (1) RI Given that the TPA152 is a MOS amplifier, the input impedance is very high, consequently input leakage currents are not generally a concern although noise in the circuit increases as the value of RF increases.
PAGE 13
TPA152 75-mW STEREO AUDIO POWER AMPLIFIER SLOS210A – JUNE 1998 – REVISED MARCH 2000 APPLICATION INFORMATION power supply decoupling, CS The TPA152 is a high-performance CMOS audio amplifier that requires adequate power supply decoupling to ensure that 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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TPA152 75-mW STEREO AUDIO POWER AMPLIFIER SLOS210A – JUNE 1998 – REVISED MARCH 2000 APPLICATION INFORMATION Table 1. Common Load Impedances vs Low Frequency Output Characteristics in SE Mode RL CC 68 µF LOWEST FREQUENCY 32 Ω 10,000 Ω 68 µF 0.23 Hz 47,000 Ω 68 µF 0.05 Hz 73 Hz As Table 1 indicates, headphone response is adequate and drive into line level inputs (a home stereo for example) is very good.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device TPA152DR Package Package Pins Type Drawing SOIC D 8 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 2500 330.0 12.4 Pack Materials-Page 1 6.4 B0 (mm) K0 (mm) P1 (mm) 5.2 2.1 8.0 W Pin1 (mm) Quadrant 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPA152DR SOIC D 8 2500 367.0 367.0 35.
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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 JESD46C and to discontinue any product or service per JESD48B. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.