ANPEC APA4800 Service Manual

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APA4800

Stereo 290mW 8Ω Speaker Driver

Features

••

• O perating Voltage

••

Single Supply 3V to 7V
Dual Supply ±1.5V to ± 3.5V

••

•

High Signal-to-Noise Ratio 100dB

••

••

• High Slew Rate 5V/ µs

••

••

• Low Distortion -65dB

••

••

• Output Power at 10% THD+N

••

into 8Ω !!!!!!!!!!!!!! 290mW
into 16Ω !!!!!!!!!!!!!! 190mW

••

• Large Output Voltage Swing

••

••

• Excellent Power Supply Ripple Rejection

••

••

• Low Power Consumption

••

••

• Short-circuit Elimination

••

••

• Wide Temperature Range

••

••

• No Switch ON/OFF Clicks

••

••

• Available in 8 pin SOP or DIP Package

••

Ordering Information

Applications

••

• Portable Digital Audio

••

••

• Personal Computers

••

••

• Microphone Preamplifier

••

Gereral Description

The AP A4800 is an integrated class AB stereo head­phone amplifier contained in an SO-8 or a DIP-8 plas­tic package . The APA4800 is capable of delivering
290mW of max . output power to an 8Ω load with less
than 10% (THD+N) from a 5V power supply . The de­vice has been primarily developed for portable digital
audio applications .

APA4800

Handling Code
Temp. Range
Package Code

Package Code
J : PDIP - 8
K : SOP - 8
Temp. Range
I : - 40 to 85 C
Handling Code
TU : Tube
TR : Tape & Reel

°

Block Diagram

1

Out A

Inverting Input A

Non-inverting Input A

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.
Rev. A.2 - Apr., 2001

2

+

3

4

V

SS

--+

AP A4800

8

V

DD

7

Out B

6

Inverting Input B

5

Non-inverting Input B

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APA4800

Absolute Maximum Ratings

Symbol Parameter Rating Unit

V

DD

T

SC (O)

T
T

T

STG

T

V

ESD

Note: *1. Human body model : C=100pF, R=1500Ω, 3 positive pulses plus 3 negative pulses

Thermal Characteristics

Symbol Parameter Value Unit

R

Supply Voltage 5 V
Output Short-circuit Duration, at TA=25°C, P
Operating Ambient Temperature range -40 to 85

A

Maximum Junction Temperature 150

J

TOT

=1W

20 S

Storage Temperature Range -65 to +150
Soldering Temperature,10 seconds 260

S

Electrostatic Discharge -3000 to 3000

THJA

Thermal Resistance from Junction to Ambient in Free Air

DIP-8

109

*1

C

°

C

°

C

°

C

°

V

K/W

SO-8

Electrical Characteristics

V

DD

VDD=5V

I

DD

V

I(OS)

AC Characteristics

(THD+N)/S Total Harmonic Distortion

P

P

PSRR P ower S upply R ejection

S/N Signal to Noise Ratio

Power Supply Voltage 2.7 5.5

Supply Current No Load 2.5 mA
Input Offset Voltage 5 50 mV

P

=200mW, RL=8Ω, f=1kHz
plus Noise to Signal
Ratio

Output P o wer (THD+N)/S=0.2%, f=1kHz mW

O

O

P

=120mW, RL=16Ω, f=1kHz

O

RL=8
RL=16

Output P o wer (THD+N)/S=10%, f=1kHz mW

O

RL=8
RL=16
C

=2.2 µF,V

Ratio

B

f=120Hz

=8

R

L

210

TA=25°C, f=1kHz( unless otherwise noted)

APA4800Symbol Parameter Test Conditions

Min. Typ. Max.

Ω

Ω

Ω

Ω

=200mVrms,

RIPPLE

Ω

K/W

0.1

0.05

210
140

290
190

55 dB
20

µ

Unit

V

%

Vrms

Copyright  ANPEC Electronics Corp.
Rev. A.2 - Apr., 2001

www.anpec.com.tw2

APA4800

Electrical Characteristics Cont. T

VDD=3V

I

DD

V

I(OS)

Supply Current No Load 2.2 mA
Input Offset Voltage 5 mV

AC Characteristics

(THD+N)/S Total Harmonic Distortion

plus Noise to Signal
Ratio

P

P

Output P o wer (THD+N)/S=0.2%, f=1kHz mW

O

Output P o wer (THD+N)/S=10%, f=1kHz mW

O

P

=50mW, RL=8Ω, f=1kHz

O

P

=40mW, RL=16Ω, f=1kHz

O

RL=8

Ω

RL=16

Ω

RL=8

Ω

RL=16

Ω

Test And Application Circuits

=25°C, f=1kHz( unless otherwise noted)

A

APA4800Symbol Parameter Test Conditions

Min. Typ. Max.

0.15 %

60
45

90
65

Unit

V

DD

V

INA

V

REF

typ.1/2V

V

INB

2.2

DD

2.2µF

220pF

220µF

15k

Ω

100

R

F

µ

R

1

F

µ

15k

15k

2

-

Ω

Ω

+

3

5

6

APA4800

+

-

15k

Ω

220pF

8

4

7

220µF

V

OUTA

L

V

OUTB

L

Copyright  ANPEC Electronics Corp.
Rev. A.2 - Apr., 2001

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APA4800

Typical Characteristics

THD+N vs Output Power

10

VDD= 5V

Ω

=8

R

L

AV= -1
BW<80kHz

1

THD+N (%)

0.1

0.01

10m 500m

Output Power (W)

f=20Hz

f=20kHz

f=1kHz

100m

THD+N vs Output Power

10

VDD= 5V

Ω

=16

R

L

AV= -1
BW<80kHz

1

THD+N (%)

0.1

0.01
10m 300m

f=20Hz

f=20kHz

f=1kHz

100m

Output Power (W)

10

VDD= 5V

=200mW

P

O

Ω

=8

R

L

NO FILTERS

1

THD+N (%)

0.1

0.01
20 20k100 1k

THD+N vs Frequency

AV= -2

= -5

A

V

AV= -1

Frequency (Hz)

10k

THD+N vs Frequency

10

VDD= 5V

=120mW

P

O

Ω

=16

R

L

NO FILTERS

1

THD+N (%)

0.1

0.01
20 20k100 1k

AV= -2
A

AV= -1

= -5

V

Frequency (Hz)

10k

Copyright  ANPEC Electronics Corp.
Rev. A.2 - Apr., 2001

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APA4800

Typical Characteristics Cont.

THD+N vs Output Power

10

1

f=20kHz

f=20Hz

THD+N (%)

0.1
f=1kHz

0.01
10m 200m100m

Output Power (W)

VDD= 3V RL=8
AV= -1
BW<80kHz

THD+N vs Output Power

10

VDD= 3V

Ω

=16

R

L

AV= -1
BW<80kHz

1

f=20kHz

f=20Hz

THD+N (%)

0.1

f=1kHz

Ω

0.01
10m 100m50m

Output Power (W)

THD+N vs Frequency

10

VDD= 3V

=50mW

P

O

Ω

=8

R

L

NO FILTERS

1

THD+N (%)

0.1

AV= -2

= -5

A

V

AV= -1

0.01
20 20k100 1k 10k

Frequency (Hz)

THD+N vs Frequency

10

VDD= 3V

=40mW

P

O

Ω

R

=16

L

NO FILTERS

1

THD+N (%)

0.1

0.01
20 20k100 1k

AV= -2

= -5

A

V

AV= -1

Frequency (Hz)

10k

Copyright  ANPEC Electronics Corp.
Rev. A.2 - Apr., 2001

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APA4800

Typical Characteristics Cont.

Power Dissipation vs Output Power

200

Ω

RL= 8

150

Ω

100

50

Power Dissipation (mW)

0

0 50 100 150 200 250 300

RL= 16

Output Power (mW)

VDD= 5V
f=1kHz

= -1

A

V

THD+N<1%
BW<80kHz

Power Dissipation vs Output Power

70

Ω

60

50

40

30

20

Power Dissipation (mW)

10

0

0 20 40 60 80 100

RL= 8

Ω

RL= 16

Output Power (mW)

VDD=3V
f=1kHz

= -1

A

V

THD+N<1%
BW<80kHz

Supply Current vs Supply Voltage

5

NO LOAD

4

4.5
3

3.5
2

2.5
1

Supply Current (mA)

1.5

0.5
0

2.5 3 3.5 4 4.5 5 5.5

Supply Voltage (V)

Open Loop Frequency Response

+80

+60

+40

Gain (dB)

+20

VDD=5V
AV= -1
Single-Ended

+0

20 200k100 1k 10k

Frequency (Hz)

Copyright  ANPEC Electronics Corp.
Rev. A.2 - Apr., 2001

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APA4800

Typical Characteristics Cont.

Output Power vs Supply Voltage

300

f=1kHz

Ω

R

=16

L

250

AV= -1
BW<80kHz

200

150

100

Output Power (mW)

10% THD+N

1% THD+N

0.2% THD+N

50

0

2.5 3 3.5 4 4.5 5 5.5

Supply Voltage (V)

Output Power vs Supply Voltage

450

f=1kHz

=8

R

Ω

L

400

AV= -1
BW<80kHz

350
300
250
200
150

Output Power (mW)

100

50

0

2.5 3 3.5 4 4.5 5 5.5

10% THD+N

1% THD+N

0.2% THD+N

Supply Voltage (V)

Output Power vs Load Resistance

100

f=1kHz
V

DD

= -1

A

75

50

Output Power (mW)

25

0

816243240485664

Load Resistance (

10% THD+N

1% THD+N

V

BW<80kHz

Ω)

=3V

Output Power vs Load Resistance

350

300

250

200

150

Output Power (mW)

100

50

0

816243240485664

Load Resistance (

f=1kHz
V
A
BW<80kHz

10% THD+N

1% THD+N

Ω)

DD
V

=5V

= -1

Copyright  ANPEC Electronics Corp.
Rev. A.2 - Apr., 2001

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APA4800

Typical Characteristics Cont.

1m

VDD=5V

Ω

=8

R

L

V)

µ

Output Noise Voltage (

AV= -1
BW<80kHz

µ

100

µ

10

µ

1

20 20k100 1k

Noise Floor

Frequency (Hz)

10k

Channel Separation

+0

-20

-40

-60

-80

Output Level (dB)

-100

-120

Ω

RL=8
AV= -1

=200mW

P

O

= 5V

V

DD

=1.0µF

C

B

Channel B to A

Channel A to B

20 20k100 1k 10k

Frequency (Hz)

Power Supply Rejection Ratio

+0

VDD=5V

-10

-20

-30

-40

PSRR (dB)

-50

-60

-70

-80

Ω

=8

R

L

AV= -1

= 200mVrms

V

Ripple

0 dB= 200mVrms

CB=2.2µF

10 100k100 1k 10k

Frequency (Hz)

CB=1.0µF

CB=0.1µF

Typical Application Frequency Response

+5

+0

CI=0.1µF

-5

Output Level (dB)

-10

-15

-20
20 100k100 1k 10k

CO=470µF

CI=1.0µF

CO=470µF

Frequency (Hz)

RI=20k

=5V RL=8

V

DD

Ω

AV= -1

Ω

Copyright  ANPEC Electronics Corp.
Rev. A.2 - Apr., 2001

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APA4800

Typical Characteristics Cont.

Frequency Response vs Output Capacitor Size

+5

+0

CO=1000µF

-5

-10

Output Level (dB)

-15

-20
20 100k100 1k 10k

CO=470µF
CO=220µF
CO=100µF

Frequency (Hz)

Customer Service

Anpec Electronics Corp.

Head Office :

5F, No. 2 Li-Hsin Road, SBIP,
Hsin-Chu, T aiwan, R.O.C.
T el : 886-3-5642000
Fax : [phone]

CI=10µF RI=20k
AV= -1 VDD=5V

Ω

=8

R

L

Frequency Response vs Output Capacitor Size

+5

+0

-5

-10

Output Level (dB)

Ω

-15

-20
20

CI=0.1µF
CI=0.47µF
CI=1µF

Frequency (Hz)

CO=10000µF

Ω

R

=20k

AV= -1

I

V

=5V RL=8

DD

Ω

100k100 1k 10k

Taipei Branch :

7F, No. 137, Lane 235, Pac Chiao Rd.,
Hsin Tien City, Taipei Hsien, Taiwan, R. O. C.
T el : 886-2-89191368
Fax : [phone]

Copyright  ANPEC Electronics Corp.
Rev. A.2 - Apr., 2001

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APA4800

φ

Packaging Information

PDIP-8 pin ( Reference JEDEC Registration MS-001)

D

E1

1

A

L

e2

e 3

A1

e 1

A2

Millimeters InchesDim

Min. Max. Min. Max.

A
A1
A2

D
e1
e2
e3

E
E1

0.38 0.015

2.92 3.68 0.115 0.145

9.02 10.16 0.355 0.400

2.54BSC 0.100BSC

0.36 0.56 0.014 0.022

1.14 1.78 0.045 0.070

7.62 BSC 0.300 BSC

6.10 7.11 0.240 0.280

E3

L

115

2.92 3.81 0.115 0.150

°

5.33 0.210

10.92 0.430

E

1

E3

15

°

Copyright  ANPEC Electronics Corp.
Rev. A.2 - Apr., 2001

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

APA4800

φ

Packaging Information

SOP-8 pin ( Reference JEDEC Registration MS-012)

HE

e1 e2

D

0.015X45

e

A1

0.004max.

Millim e te r s Inche sDim

Min. Max. Min. Max.

A 1.35 1.75 0.053 0.069

A1 0.10 0.25 0.004 0.010

D 4.80 5.00 0.189 0.197

E 3.80 4.00 0.150 0.157

H 5.80 6.20 0.228 0.244

L 0.40 1.27 0.016 0.050
e1 0.33 0.51 0.013 0.020
e2 1.27BSC 0.50BSC

10

°

8

°

A

1

L

0

°

8

°

Copyright  ANPEC Electronics Corp.
Rev. A.2 - Apr., 2001

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APA4800

Physical Specifications

Term inal Material Solder-Plated Copper (Solder Material : 90/10 or 63/37 SnPb
Lead Solderability Meets EIA Specification RSI86-91, ANSI/J-STD-002 Category 3.
Packaging 2500 devices per reel

Reflow Condition (IR/Convection or VPR Reflow)

Reference JEDEC Standard J-STD-020A APRIL 1999

Peak temperature

temperature

Pre-heat temperature

°

183 C

Time

Classificatio n R e flow Profiles

Convection or IR/

Convection

Average ramp-up rate(183°C to Peak) 3°C/second max. 10 °C /second max.
Preheat temperature 125 ± 25°C)
Temperature maintained above 183°C
Time within 5°C of actual peak temperature
Peak temperature range
Ramp-down rate
Time 25°C to peak temperature

120 seconds max
60 – 150 seconds
10 –20 seconds 60 seconds
220 +5/-0°C or 235 +5/-0°C 215-219°C or 235 +5/-0°C
6 °C /second max. 10 °C /second max.
6 minutes max.

VPR

Package Reflow Conditions

pkg. thickness ≥≥≥≥ 2.5mm
and all bgas

Convection 220 +5/-0 °C Convection 235 +5/-0 °C
VPR 215-219 °C VPR 235 +5/-0 °C
IR/Convection 220 +5/-0 °C IR/Convection 235 +5/-0 °C

Copyright  ANPEC Electronics Corp.
Rev. A.2 - Apr., 2001

pkg. thickness < 2.5mm and
pkg. volume ≥≥≥≥ 350 mm³

pkg. thickness < 2.5mm and p kg .
volume < 350mm³

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APA4800

Reliability test pro gram

Test item Method Description

SOLDERABILITY MIL-STD-883D-2003
HOLT M IL-STD-883D-1005.7
PCT JESD -22-B, A102
TST MIL-STD-883D-1011.9
ESD MIL-STD-883D-3015.7 VHBM > 2KV, VMM > 200V
Latch-Up JESD 78 10ms , Itr > 100mA

Carrier Tape & Reel Dimensions

245°C , 5 SEC
1000 Hrs Bias @ 125 °C
168 Hrs, 100 % RH , 121°C

-65°C ~ 150°C, 200 C ycles

H

Applica tion

SOP 8N

Applica tion

SOP 8N

B

C

A

L

F

E

P1

D

M

J

G

K

T2

W

V

T1

I

AEBCJKFP1D

12 + 0.3

8.0 ± 0.1 1.75± 0.1 5.5± 0.1 1.55± 0.1 1.5± 0.25 4.0 ± 0.1 2.0 ± 0.1 6.4 ± 0.1

12 - 0.1

GIHLVWMT1T2

5.2 ±0.1 2.1 ± 0.1 0.3±0.013 330±1 100±1

13+0.5

2.2±0.1 12.5± 0.5 2.0 ± 0.2

13 -0.1

(mm)

Cover Tape Dimensions

Carrier Width

Cover Tape Width

Copyright  ANPEC Electronics Corp.
Rev. A.2 - Apr., 2001

12

9.3
(mm)

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