Texas Instruments TPA102DGNR, TPA102EVM, TPA102DGN, TPA102MSOPEVM Datasheet

TPA102 150-mW STEREO AUDIO POWER AMPLIFIER

	SLOS213C ± AUGUST 1998 ± REVISED MARCH 2000
D 150 mW Stereo Output	DGN PACKAGE
	(TOP VIEW)

DPC Power Supply Compatible

± Fully Specified for 3.3 V and 5 V	BYPASS			1	8			IN1±
Operation	GND			2	7			VO1
± Operation to 2.5 V
	SHUTDOWN			3	6			VDD
D Pop Reduction Circuitry
	IN2±			4	5			VO2

DInternal Mid-Rail Generation

DThermal and Short-Circuit Protection

DSurface-Mount Packaging

± PowerPAD MSOP

DPin Compatible With LM4881

description

The TPA102 is a stereo audio power amplifier packaged in an 8-pin PowerPAD MSOP package capable of delivering 150 mW of continuous RMS power per channel into 8-Ω loads. 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.

THD+N when driving an 8-Ω load from 5 V is 0.1% at 1 kHz, and less than 2% across the audio band of 20 Hz to 20 kHz. For 32-Ω loads, the THD+N is reduced to less than 0.06% at 1 kHz, and is less than 1% across the audio band of 20 Hz to 20 kHz. For 10-kΩ loads, the THD+N performance is 0.01% at 1 kHz, and less than 0.02% across the audio band of 20 Hz to 20 kHz.

typical application circuit
		325 kΩ	325 kΩ	VDD	6
					VDD
	RF		VDD/2		CS
Audio
Input
RI	8	IN 1±	±	VO1	7
CI			+		CC
	1	BYPASS
Audio	CB
Input
RI	4	IN 2±	±	VO2	5
CI			+		CC
From Shutdown	3	SHUTDOWN		Bias	2
Control Circuit				Control
	RF

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 Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.

Copyright 2000, Texas Instruments Incorporated

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1

TPA102

150-mW STEREO AUDIO POWER AMPLIFIER

SLOS213C ± AUGUST 1998 ± REVISED MARCH 2000

AVAILABLE OPTIONS

	TA	PACKAGED DEVICE	MSOP
		MSOP²	Symbolization
	± 40°C to 85°C	TPA102DGN	TI AAC

²The DGN package is available in left-ended tape and reel only (e.g., TPA102DGNR).

				Terminal Functions
	TERMINAL		I/O	DESCRIPTION
	NAME	NO.
	BYPASS	1	I	Tap to voltage divider for internal mid-supply bias supply. Connect to a 0.1 F to 1 F low ESR capacitor for
				best performance.
	GND	2	I	GND is the ground connection.
	IN1±	8	I	IN1± is the inverting input for channel 1.
	IN2±	4	I	IN2± is the inverting input for channel 2.
	SHUTDOWN	3	I	Puts the device in a low quiescent current mode when held high.
	VDD	6	I	VDD is the supply voltage terminal.
	VO1	7	O	VO1 is the audio output for channel 1.
	VO2	5	O	VO2 is the audio output for channel 2.

absolute maximum ratings over operating free-air temperature (unless otherwise noted)²

Supply voltage, VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . . 6	V
Input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	±0.3 V to VDD + 0.3	V
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . internally limited
Operating junction temperature range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . ±40°C to 150°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . ±65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . 260°C

²Stresses beyond those listed under ªabsolute maximum ratingsº may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under ªrecommended operating conditionsº is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

DISSIPATION RATING TABLE

	PACKAGE	TA ≤ 25°C	DERATING FACTOR	TA = 70°C	TA = 85°C
		POWER RATING	ABOVE TA = 25°C	POWER RATING	POWER RATING
	DGN	2.14 W³	17.1 mW/°C	1.37 W	1.11 W

³Please see the Texas Instruments document, PowerPAD Thermally Enhanced Package Application Report

(literature number SLMA002), for more information on the PowerPAD package. The thermal data was measured on a PCB layout based on the information in the section entitled Texas Instruments Recommended Board for PowerPAD on page 33 of the before mentioned document.

recommended operating conditions

	MIN	MAX	UNIT
Supply voltage, VDD	2.5	5.5	V
Operating free-air temperature, TA	±40	85	°C

2	POST OFFICE BOX 655303 •DALLAS, TEXAS 75265

TPA102 150-mW STEREO AUDIO POWER AMPLIFIER

SLOS213C ± AUGUST 1998 ± REVISED MARCH 2000

dc electrical characteristics at TA = 25°C, VDD = 3.3 V

	PARAMETER	TEST CONDITIONS	MIN TYP	MAX	UNIT
VIO	Input offset voltage			5	mV
PSRR	Power supply rejection ratio	VDD = 3.2 V to 3.4 V	83		dB
IDD	Supply current		1.5	3	mA
IDD(SD)	Supply current in SHUTDOWN mode		10	50	µA
ZI	Input impedance		> 1		MΩ

ac operating characteristics, VDD = 3.3 V, TA = 25°C, RL = 8 Ω

	PARAMETER	TEST CONDITIONS		MIN TYP	MAX	UNIT
PO	Output power (each channel)	THD ≤ 0.1%		70²		mW
THD+N	Total harmonic distortion + noise	PO = 70 mW,	20±20 kHz	2%
BOM	Maximum output power BW	G = 10,	THD <5%	>20		kHz
	Phase margin	Open loop		58°
	Supply ripple rejection ratio	f = 1 kHz		68		dB
	Channel/channel output separation	f = 1 kHz		86		dB
SNR	Signal-to-noise ratio	PO = 100 mW		100		dB
Vn	Noise output voltage			9.5		µV(rms)

² Measured at 1 kHz

dc electrical characteristics at TA = 25°C, VDD = 5 V

	PARAMETER	TEST CONDITIONS	MIN TYP	MAX	UNIT
VIO	Input offset voltage			5	mV
PSRR	Power supply rejection ratio	VDD = 4.9 V to 5.1 V	76		dB
IDD	Supply current		1.5	3	mA
IDD(SD)	Supply current in SHUTDOWN mode		60	100	µA
ZI	Input impedance		> 1		MΩ

ac operating characteristics, VDD = 5 V, TA = 25°C, RL = 8 Ω

	PARAMETER	TEST CONDITIONS		MIN TYP	MAX	UNIT
PO	Output power (each channel)	THD ≤ 0.1%		70²		mW
THD+N	Total harmonic distortion + noise	PO = 150 mW,	20±20 kHz	2%
BOM	Maximum output power BW	G = 10,	THD <5%	>20		kHz
	Phase margin	Open loop		56°
	Supply ripple rejection ratio	f = 1 kHz		68		dB
	Channel/Channel output separation	f = 1 kHz		86		dB
SNR	Signal-to-noise ratio	PO = 150 mW		100		dB
Vn	Noise output voltage			9.5		µV(rms)

² Measured at 1 kHz

POST OFFICE BOX 655303 •DALLAS, TEXAS 75265

3

TPA102

150-mW STEREO AUDIO POWER AMPLIFIER

SLOS213C ± AUGUST 1998 ± REVISED MARCH 2000

ac operating characteristics, VDD = 3.3 V, TA = 25°C, RL = 32 Ω

	PARAMETER	TEST CONDITIONS		MIN TYP	MAX	UNIT
P	Output power (each channel)	THD ≤ 0.1%		40²		mW
O
THD+N	Total harmonic distortion + noise	PO = 30 mW,	20±20 kHz	0.5%
BOM	Maximum output power BW	AV = 10,	THD <2%	>20		kHz
	Phase margin	Open loop		58°
	Supply ripple rejection ratio	f = 1 kHz		68		dB
	Channel/channel output separation	f = 1 kHz		97		dB
SNR	Signal-to-noise ratio	PO = 100 mW		100		dB
Vn	Noise output voltage			9.5		V(rms)

² Measured at 1 kHz

ac operating characteristics, VDD = 5 V, TA = 25°C, RL = 32 Ω

	PARAMETER	TEST CONDITIONS		MIN TYP	MAX	UNIT
P	Output power (each channel)	THD ≤ 0.1%		40²		mW
O
THD+N	Total harmonic distortion + noise	PO = 60 mW,	20±20 kHz	0.4%
BOM	Maximum output power BW	AV = 10,	THD <2%	>20		kHz
	Phase margin	Open loop		56°
	Supply ripple rejection ratio	f = 1 kHz		68		dB
	Channel/channel output separation	f = 1 kHz		97		dB
SNR	Signal-to-noise ratio	PO = 150 mW		100		dB
Vn	Noise output voltage			9.5		V(rms)

² Measured at 1 kHz

TYPICAL CHARACTERISTICS

Table of Graphs

			FIGURE
			1, 2, 4, 5, 7, 8,
THD+N	Total harmonic distortion plus noise	vs Frequency	10, 11, 13, 14,
			16, 17, 34, 36
		vs Power output	3, 6, 9,
			12, 15, 18
	Power supply rejection ratio	vs Frequency	19, 20
Vn	Output noise voltage	vs Frequency	21, 22
	Crosstalk	vs Frequency	23±26, 37, 38
	Mute attenuation	vs Frequency	27, 28
	Open-loop gain	vs Frequency	29, 30
	Phase margin
	Output power	vs Load resistance	31, 32
IDD	Supply current	vs Supply voltage	33
SNR	Signal-to-noise ratio	vs Voltage gain	35
	Closed-loop gain	vs Frequency	39±44
	Phase
	Power dissipation	vs Output power	45, 46

4	POST OFFICE BOX 655303 •DALLAS, TEXAS 75265

TPA102 150-mW STEREO AUDIO POWER AMPLIFIER

SLOS213C ± AUGUST 1998 ± REVISED MARCH 2000

TYPICAL CHARACTERISTICS

TOTAL HARMONIC DISTORTION PLUS NOISE

			vs
			FREQUENCY
%	10
		VDD = 3.3 V
±		PO = 30 mW
+ Noise
		CB = 1 µ F
	1	RL = 32 Ω
			AV = ±5 V/V
Distortion
		AV =± 10 V/V
Harmonic	0.1
THD+N ±Total	0.01		AV = ±1 V/V
	0.001
	20	100	1k	10k	20k
			f ± Frequency ± Hz

Figure 1

TOTAL HARMONIC DISTORTION PLUS NOISE

			vs
			FREQUENCY
%	10	VDD = 3.3 V
±		AV = ±1 V/V
+ Noise
		RL = 32 Ω
	1	CB = 1 µ F
Distortion		PO = 15 mW
Harmonic	0.1
		PO = 10 mW
±Total	0.01
THD+N		PO = 30 mW
	0.001
	20	100	1k	10k	20k
			f ± Frequency ± Hz

Figure 2

TOTAL HARMONIC DISTORTION PLUS NOISE	TOTAL HARMONIC DISTORTION PLUS NOISE
vs	vs
OUTPUT POWER	FREQUENCY

%	10	VDD = 3.3 V	%	10
				V		= 5 V
±		RL = 32 Ω	±	DD
				P	= 60 mW
Noise+		AV = ±1 V/V	Noise+	O	= 32 Ω
				1
				RL
		CB = 1 µF		CB = 1 µF
Distortion		20 kHz	Distortion
	1	10 kHz					AV = ±10 V/V
Harmonic	0.1		Harmonic	0.1		AV = ±5 V/V
±Total		1 kHz	±Total
		20 Hz		0.01
THD+N			THD+N
						AV = ±1 V/V
	0.01			0.001
	1	10	50	20		100	1k	10k	20k
		PO ± Output Power ± mW					f ± Frequency ± Hz

Figure 3

Figure 4

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5

TPA102

150-mW STEREO AUDIO POWER AMPLIFIER

SLOS213C ± AUGUST 1998 ± REVISED MARCH 2000

TYPICAL CHARACTERISTICS

TOTAL HARMONIC DISTORTION PLUS NOISE

TOTAL HARMONIC DISTORTION PLUS NOISE

			vs					vs
			FREQUENCY					OUTPUT POWER
± %	10	VDD = 5 V				10
					± %	V		= 5 V
		RL = 32 Ω				DD
						A	= ±1 V/V
Noise		AV = ±1 V/V			Noise	V
						RL = 32 Ω
	1	CB = 1 µF				CB = 1 µF
+					+			20 kHz
Distortion					Distortion
						1
								10 kHz
		PO = 30 mW
Harmonic	0.1				Harmonic
		PO = 15 mW				0.1
								1 kHz
±Total	0.01				±Total
								20 Hz
THD+N		PO = 60 mW			THD+N
	0.001					0.01
	20	100	1k	10k	20k	0.002		0.01	0.1	0.2
			f ± Frequency ± Hz					PO ± Output Power ± W
			Figure 5					Figure 6

TOTAL HARMONIC DISTORTION PLUS NOISE

TOTAL HARMONIC DISTORTION PLUS NOISE

vs

vs

FREQUENCY

FREQUENCY

± %

10

VDD = 3.3 V

10

± %

V

= 3.3 V

RL = 10 kΩ

DD

1

RL = 10 kΩ

Noise+

PO = 100 µF

Noise+

1

A

= ±1 V/V

CB = 1 µF

V

CB = 1 µF

Distortion

AV = ±5 V/V

Distortion

Harmonic

0.1

Harmonic

0.1

±Total

±Total

PO = 45 µW

0.01

0.01

THD+N

THD+N

AV = ±2 V/V

P

O

= 90 µW

PO = 130 µW

0.001

0.001

20

100

1k

10k

20k

20

100

1k

10k

20k

f ± Frequency ± Hz

f ± Frequency ± Hz

Figure 7

Figure 8

6	POST OFFICE BOX 655303 •DALLAS, TEXAS 75265

TPA102 150-mW STEREO AUDIO POWER AMPLIFIER

SLOS213C ± AUGUST 1998 ± REVISED MARCH 2000

TYPICAL CHARACTERISTICS

THD+N ±Total Harmonic Distortion + Noise ± %

TOTAL HARMONIC DISTORTION PLUS NOISE vs

OUTPUT POWER

10

VDD = 3.3 V

RL = 10 kΩ

AV = ±1 V/V

CB = 1 µF

1

0.1

20 Hz

10 kHz

0.01

20 Hz

1 kHz

0.001

5

10

100

200

PO ± Output Power ± µW

Figure 9

TOTAL HARMONIC DISTORTION PLUS NOISE

			vs
			FREQUENCY
%	10	VDD = 5 V
±		RL = 10 kΩ
+ Noise
		PO = 300 µW
	1	CB = 1 µF
Distortion
Harmonic	0.1		AV = ±5 V/V
		AV = ±1 V/V
±Total	0.01
THD+N			AV = ±2 V/V
	0.001
	20	100	1k	10k	20k
			f ± Frequency ± Hz

Figure 10

TOTAL HARMONIC DISTORTION PLUS NOISE

TOTAL HARMONIC DISTORTION PLUS NOISE

			vs					vs
			FREQUENCY					OUTPUT POWER
%	10	VDD = 5 V				10
					%		VDD = 5 V
±		RL = 10 kΩ			±		RL = 10 kΩ
Noise+	1				Noise+	1
		CB = 1 µF					CB = 1 µ F
		AV = ±1 V/V					A = ±1 V/V
							V
Distortion			PO = 300 µW		Distortion
Harmonic	0.1		PO	= 200 µW	Harmonic	0.1
								20 Hz
±Total					±Total			20 kHz
	0.01					0.01
THD+N					THD+N
		PO = 100 µW						10 kHz	1 kHz
	0.001					0.001
	20	100	1k	10k	20k	5	10	100	500
			f ± Frequency ± Hz				PO ± Output Power ± µW
			Figure 11					Figure 12

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7