ANPEC APA2822 Service Manual

APA2822

APA2822

Dual Low-Voltage Power Amplifier

Features

•Supply Voltage Down to 1.8V

•Low Crossover Distortion

•Low Quiescent Current

•Bridge-tied or Stereo(Single-ended) Configurations

•Both DIP-8 and SOP-8 packages available

General Description

The APA2822 is a monolithic integrated circuit in 8- lead PDIP package. It is intended for use as dual audio power amplifier in portable cassette players, active speakers, and radios.

Applications

•Audio Amplifiers

•Active Speakers

•Sound Cards

•Filters

•Analog Circuit

Pin Description
Output (1)	1	8	Input (1)
Supply Voltage	2	7	Input (1)
Output (2)	3	6	Input (2)
Ground	4	5	Input (2)

Ordering Information

APA 2822

Package Code

J : PDIP - 8

K : SOP - 8

Handling Code

Temp. Range

C : 0 to +70° C

Temp. Range

Handling Code

Package Code

TU : Tube

ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders.

Copyright ANPEC Electronics Corp.	1	www.anpec.com.tw
Rev. A.2 - Jan., 2001

APA2822

Absolute Maximum Ratings

Symbol	Parameter			Rating	Unit
VCC	Supply Voltage			15	V
IO	Peak Output Current			1	A
VI	Input Voltage			15	V
PTOT	Power Dissipation at	TAMB	= 50° C	1	W
	at	TCASE	= 50° C	1.4
TSTG , TJ	Storage and Junction Temperature Range			-40 to +150	° C

Thermal Data

Symbol

Parameter

Rating

Unit

RTH J-AMB

Thermal Resistance Junction-Ambient

Max.

100

° C/ W

RTH J-CASE

Thermal Resistance Junction-Pin

Max.

70

° C/ W

Electrical Characteristics (VS= 6V , TA = 25° C, unless otherwise specified)

Symbol

Parameter

Test Conditions

APA2822

Unit

Min.

Typ.

Max.

STEREO (test circuit of Figure 1)

VS

Supply Voltage

1.8

15

V

VO

Quiescent Output Voltage

2.7

V

VS =3V

1.2

ID

Quiescent Drain Current

6

mA

IB

Input Bias Current

100

nA

PO

Output Power

RL =32Ω

VS = 9V

300

mW

(f = 1kHz, d = 10%)

VS = 6V

120

VS = 4.5V

60

VS =3V

20

VS = 2V

5

RL =16Ω

VS = 6V

220

RL =8Ω

VS = 9V

1000

VS = 6V

380

RL =4Ω

VS = 6V

650

VS = 4.5V

320

VS = 3V

110

Copyright

ANPEC Electronics Corp.

2

www.anpec.com.tw

Rev. A.2 - Jan., 2001

APA2822

Electrical Characteristics Cont. (VS= 6V , TA = 25° C, unless otherwise specified)

Symbol	Parameter	Test Conditions				APA2822					Unit
					Min.		Typ.		Max.
d	Distortion (f = 1kHz)	RL =32Ω	PO = 40mW				0.2				%
		RL =16Ω	PO = 75mW				0.2
		RL = 8Ω	PO = 150mW				0.2
STEREO (test circuit of Figure 1)
GV	Closed Loop Voltage Gain	f = 1kHz					39				dB
∆ GV	Channel Balance									± 1	dB
RI	Input Resistance	f = 1kHz			100						kΩ
eN	Total Input Noise	RS = 10kΩ B = 22Hz to 22kHz					2.5				µ V
SVR	Supply Voltage Rejection		µ				30				dB
		f = 100Hz, C1 = C2 = 100 F
Cs	Channel Separation	f = 1kHz					50
BRIDGE (test circuit of Figure 2)
VS	Supply Voltage				1.8					15	V
ID	Quiescent Drain Current	RL =8Ω					6			9	mA
VOS	Output Offset Voltage	Ω							±	50	mV
	(between the outputs)	RL =8
IB	Input Bias Current						100				nA
PO	Output Power	RL =32Ω		VS = 9V			1000				mW
	(f = 1kHz, d = 10%)			VS = 6V			400
				VS = 4.5V			200
				VS =3V			65
				VS = 2V
							8
		RL =16Ω		VS = 9V			2000
				VS = 6V			800
				VS = 3V			120
		RL =8Ω		VS = 6V			1350
				VS = 4.5V			700
				VS = 3V			220
		RL =4Ω		VS = 4.5V			1000
				VS = 3V			350
				VS = 2V			80
d	Distortion	PO = 0.5W, RL =8Ω , f = 1kHz					0.2				%
GV	Closed Loop Voltage Gain	f = 1kHz					39				dB
RJ	Input Resistance	f = 1kHz			100						kΩ
eN	Total Input Noise	RS =10kΩ , B = 22Hz to 22kHz					3				µ V
SVR	Supply Voltage Rejection	f = 100Hz					30				dB
B	Power Bandwidth (-3dB)	RL =8Ω	, PO = 1W						120		kHz
Copyright	ANPEC Electronics Corp.		3						www.anpec.com.tw

Rev. A.2 - Jan., 2001