ST TDA2822M User Manual

TDA7211A

TDA2822M

DUAL LOW-VOLTAGE POWER AMPLIFIER

.

.SUPPLY VOLTAGE DOWN TO 1.8V

.LOW CROSSOVER DISTORSION

.LOW QUIESCENT CURRENT

BRIDGE OR STEREO CONFIGURATION

MINIDIP

ORDERING NUMBER : TDA2822M

DESCRIPTION

The TDA2822M is a monolithic integrated circuit in 8 lead Minidip package. It is intended for use as dual audio power amplifier in portable cassette players and radios.

PIN CONNECTION (Top view)

March 1995

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TDA2822M

SCHEMATIC DIAGRAM

ABSOLUTE MAXIMUM RATINGS

Symbol	Parameter		Value	Unit
Vs	Supply Voltage		15	V
Io	Peak Output Current		1	A
Ptot	Total Power Dissipation at Tamb = 50 °C		1	W
	at Tcase = 50	°C	1.4	W
Tstg, Tj	Storage and Junction Temperature		± 40, + 150	°C

THERMAL DATA

Symbol	Parameter		Value	Unit
Rth j-amb	Thermal Resistance Junction-ambient	Max.	100	°C/W
Rth j-case	Thermal Resistance Junction-pin (4)	Max.	70	°C/W

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Id Ib Po

Vs Vo

TDA2822M

ELECTRICAL CHARACTERISTICS (VS = 6V, Tamb = 25oC, unless otherwise specified)

Symbol

Parameter

STEREO (test circuit of Figure 1) Supply Voltage Quiescent Output Voltage

Quiescent Drain Current Input Bias Current

Output Power (each channel) (f = 1kHz, d = 10%)

d	Distortion (f = 1kHz)
Gv	Closed Loop Voltage Gain
Gv	Channel Balance
Ri	Input Resistance
eN	Total Input Noise
SVR	Supply Voltage Rejection
Cs	Channel Separation
BRIDGE (test circuit of Figure 2)
Vs	Supply Voltage
Id	Quiescent Drain Current
Vos	Output Offset Voltage
	(between the outputs)
Ib	Input Bias Current
Po	Output Power (f = 1kHz, d = 10%)

d	Distortion
Gv	Closed Loop Voltage Gain
Ri	Input Resistance
eN	Total Input Noise
SVR	Supply Voltage Rejection
B	Power Bandwidth (±3dB)

Test Conditions		Min.	Typ.	Max.	Unit
		1.8		15	V
			2.7		V
Vs = 3V			1.2		V
			6	9	mA
			100		nA
RL = 32Ω	VS = 9V		300		mW
	VS = 6V	90	120
	VS = 4.5V	15	60
	VS = 3V		20
RL = 16Ω	VS = 2V	170	5
	VS = 6V		220
RL = 8Ω	VS = 9V	300	1000
RL = 4Ω	VS = 6V		380
	VS = 6V	450	650
	VS = 4.5V		320
	VS = 3V		110
RL = 32Ω	Po = 40mW		0.2		%
RL = 16Ω	Po = 75mW		0.2		%
RL = 8Ω	Po = 150mW		0.2		%
f = 1kHz		36	39	41	dB
				± 1	dB
f = 1kHz		100			kΩ
Rs = 10kΩ	B = Curve A		2		μV
	B = 22Hz to 22kHz		2.5		μV
f = 100Hz, C1 = C2 = 100μF		24	30		dB
f = 1kHz			50		dB
		1.8		15	V
RL = ∞			6	9	mA
RL = 8Ω				± 50	mV
			100		nA
RL = 32Ω	VS = 9V		1000		mW
	VS = 6V	320	400
	VS = 4.5V	50	200
	VS = 3V		65
RL = 16Ω	VS = 2V		8
	VS = 9V		2000
	VS = 6V		800
RL = 8Ω	VS = 3V	900	120
	VS = 6V		1350
	VS = 4.5V		700
RL = 4Ω	VS = 3V		220
	VS = 4.5V	200	1000
	VS = 3V		350
	VS = 2V		80
Po = 0.5W, RL = 8Ω, f = 1kHz			0.2		%
f = 1kHz			39		dB
f = 1kHz		100			kΩ
Rs = 10kΩ	B = Curve A		2.5		μV
	B = 22Hz to 22kHz		3		μV
f = 100Hz			40		dB
RL = 8Ω, Po = 1W			120		kHz

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TDA2822M

Figure 1 : Test Circuit (Stereo)

Figure 2 : Test Circuit (Bridge)

Figure 3 : P.C. Board and Components Layout	Figure 4 : P.C. Board and Components Layout
of the Circuit of Figure 1	of the Circuit of Figure 2

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