ANPEC APA2308OI-TU, APA2308OI-TR, APA2308KI-TU, APA2308KI-TR, APA2308JI-TU, APA2308JI-TR Datasheet

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APA2308

Class AB Stereo Headphone Driver

Features

Applications

Operating Voltage

 

Single Supply

3V to 6V

 

Dual Supply

±1.5V to ± 3.0V

High Signal-to-Noise Ratio

100dB

Low Distortion

-65dB

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 ,DIP or TSSOP Package

Portable Digital Audio

Gereral Description

The APA2308 is an integrated class AB stereo headphone driver contained in an SO-8, a DIP-8 or a TSSOP-8 plastic package. The APA2308 is capable of delivering 280mW of max. Output power to an 8Ω load or 110mW to a 32Ω load with less than 10% (THD+N) from a 5V power supply. The device is fabricated in a CMOS process and has been primarily developed for portable digital audio applications .

Ordering and Marking Information

A P A 2308

H andling C ode

T em p . R ange

P ackage C ode

P ackage C ode

 

J : P D IP - 8

K : S O P - 8

O : T S S O P - 8

 

T em p . R ange

 

I : - 40 to 85 ° C

 

H andling C ode

 

T U : Tube

T R : T ape & R eel

 

 

 

 

 

A P A 2308

J :

A P A 2308

 

X X X X X - D ate C ode

 

 

X X X X X

 

 

 

 

 

 

 

 

 

 

 

A P A 2308

K :

A P A 2308

 

X X X X X - D ate C ode

X X X X X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A P A 2308 O :

A P A 2308

X X X X X - D ate C ode

X X X X X

 

 

 

 

 

 

 

 

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. B.3 - Jun., 2003

 

 

APA2308

Block Diagram

Out A 1

8

V

 

 

 

DD

Inverting Input A 2

7

Out B

 

- +

+ -

 

Non-inverting Input A 3

6

Inverting Input B

V

4

5

Non-inverting Input B

SS

 

 

 

 

APA2308

 

Absolute Maximum Ratings

Symbol

Parameter

Rating

Unit

VDD

Supply Voltage

7

V

TSC(O)

Output Short-circuit Duration,at TA=25°C,PTOT=1W

20

S

TA

Operating Ambient Temperature range

-40 to 85

°C

TJ

Maximum Junction Temperature

150

°C

TSTG

Storage Temperature Range

-65 to +150

°C

TS

Soldering Temperature , 10 seconds

260

°C

VESD

Electrostatic Discharge

-3000 to 3000*1

V

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

Thermal Characteristics

Symbol

Parameter

Value

Unit

 

 

 

 

RTHJA

Thermal Resistance from Junction to Ambient in Free Air

 

 

 

DIP-8

109

K/W

 

SO-8

210

K/W

 

 

 

 

Electrical Characteristics

VDD=5V , VSS=0V , TA=25°C , fi=1kHz , RL=32Ω ( unless otherwise noted)

 

Symbol

Parameter

Test Condition

 

APA2308

 

Unit

 

Min.

 

Typ.

 

Max

 

 

 

 

 

 

 

 

Supply

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VDD

Supply Voltage

 

 

 

 

 

 

 

 

 

Single

 

3.0

 

5.0

 

6.0

V

 

 

 

 

 

 

 

 

 

 

 

 

Dual

 

±1.5

 

±2.5

 

±3.0

 

 

 

 

 

 

 

 

 

 

 

 

VSS

Negative Supply Voltage

 

-1.5

 

-2.5

 

-3.0

V

 

IDD

Supply Current

No Load

 

 

2.5

 

5

MA

 

PTOT

Total Power Dissipation

No Load

 

 

12.5

 

25

mW

 

 

 

 

 

 

 

 

 

 

Copyright ANPEC Electronics Corp.

2

 

 

www.anpec.com.tw

Rev. B.3 - Jun., 2003

 

 

 

 

 

 

 

APA2308

Electrical Characteristics Cont.

VDD=5V, VSS=0V, TA=25°C, fi=1kHz, RL=32Ω ( unless otherwise noted)

Symbol

Parameter

Test Condition

 

APA2308

 

Unit

Min.

 

Typ.

 

Max

 

 

 

 

 

 

DC Characteristics

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VI(OS)

Input Offset Voltage

 

 

 

5

 

 

MV

IBIAS

Input Bias Current

 

 

 

10

 

 

PA

VCM

Common Mode Voltage

 

0

 

 

 

3.5

V

GV

Open-loop Voltage Gain

RL=5kΩ

 

 

75

 

 

dB

IO

Max. Output Current

(THD+N)/S<0.1%

 

 

140

 

 

MA

RO

Output Resistance

 

 

 

0.25

 

 

AC Characteristics

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VO

Output Voltage Swing

RL=32Ω*1

0.25

 

 

 

4.75

V

 

 

RL=16Ω*1

0.5

 

 

 

4.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PSRR

Power Supply Rejection Ratio

Fi=100Hz

 

 

65

 

 

dB

 

 

VRIPPLE(P-P) =100mV

 

 

 

 

 

 

 

 

 

 

 

 

\CS

Channel Separation

RL=32Ω

 

 

95

 

 

dB

CL

Load Capacitance

 

 

 

 

 

200

pF

(THD+N)/S

Total Harmonic Distortion Plus

RL=32Ω*2

 

 

-65

 

-60

dB

 

Noise to Signal Ratio

 

 

0.05

 

0.1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S/N

Signal to Noise Ratio

 

90

 

100

 

 

dB

 

 

 

 

 

 

 

 

 

FG

Unity Gain Frequency

RL=5kΩ

 

 

5

 

 

MHz

PO

Max. Output Power

(THD+N)/S<0.1%

 

 

84

 

 

mW

CI

Input Capacitance

 

 

 

3

 

 

pF

B

Power Bandwidth

Unity Gain Inverting

 

 

20

 

 

kHz

 

 

 

 

 

 

 

 

 

Notes *1 : Values are proportional to VDD ; (THD+N)/S < 0.1% *2 : VDD=5.0V ; VO(P-P)=3.5V (at 0 dB)

Copyright ANPEC Electronics Corp.

3

www.anpec.com.tw

Rev. B.3 - Jun., 2003

 

 

APA2308

Test And Application Circuits

VDD

 

 

220pF

 

 

 

 

 

 

 

 

 

 

 

 

220µF

 

 

 

15kΩ

 

VOUTA

 

 

 

 

 

 

 

 

1

8

RL

2.2µF

 

2

-

 

 

VINA

 

 

 

15kΩ

 

 

 

 

 

+

 

 

 

 

3

 

 

 

 

APA2308

 

 

VREF

 

 

 

100µF

 

 

 

 

 

typ.1/2VDD

 

5

- +

 

 

VINB

15kΩ

6

 

 

2.2µF

 

 

 

 

7

4

 

 

 

 

 

 

 

 

15kΩ

 

VOUTB

 

 

 

 

220µF

 

 

 

 

 

 

 

 

220pF

 

RL

 

 

 

 

 

Copyright ANPEC Electronics Corp.

4

www.anpec.com.tw

Rev. B.3 - Jun., 2003

 

 

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