ANPEC APA2308OI-TU, APA2308OI-TR, APA2308KI-TU, APA2308KI-TR, APA2308JI-TU Datasheet
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Class AB Stereo Headphone Driver
Copyright ANPEC Electronics Corp.
Rev. B.3 - Jun., 2003
APA2308
www.anpec.com.tw1
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.
Features
Ordering and Marking Information
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 .
Applications
• Portable Digital Audio
Gereral Description
••
••
•
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
APA2308
Package Code
J : P DIP - 8 K : SOP - 8
O : T SSO P - 8
Temp. Range
I : - 40 to 85 C
Handling Code
TU : Tube TR : Tape & Reel
°
Handling Code
Temp. Range
Package Code
APA2308 J : APA2308
XXXXX
XXXXX - Date Code
APA2308 K :
APA2308
XXXXX
XXXXX - Date Code
APA2308 O :
APA2308
XXXXX
XXXXX - Date Code
Copyright ANPEC Electronics Corp.
Rev. B.3 - Jun., 2003
APA2308
www.anpec.com.tw2
Thermal Characteristics
Absolute Maximum Ratings
Electrical Characteristics
VDD=5V , VSS=0V , TA=25°C , fi=1kHz , RL=32Ω ( unless otherwise noted)
Note : *1. Human body model : C=100pF , R=1500Ω , 3 positive pulses plus 3 negative pulses
Symbol Parameter Value Unit
R
THJA
Thermal Resistance from Junction to Ambient in Free Air
DIP-8
SO-8
109
210
K/W
K/W
Symbol Parameter Rating Unit
V
DD
Supply Voltage 7 V
T
SC(O)
Output Short-circuit Duration,at TA=25°C,PTOT=1W 20 S
T
A
Operating Ambient Temperature range -40 to 85 °C
T
J
Maximum Junction Temperature 150 °C
T
STG
Storage Temperature Range -65 to +150 °C
T
S
Soldering Temperature , 10 seconds 260 °C
V
ESD
Electrostatic Discharge -3000 to 3000
*1
V
Block Diagram
APA2308
1
2
3
4
5
6
7
8
Out A
Inverting Input A
Non-inverting Input A
Non-inverting Input B
Out B
Inverting Input B
--+
+
V
SS
V
DD
APA2308
Symbol Parameter Test Condition
Min. Typ. Max
Unit
Supply
Supply Voltage
Single 3.0 5.0 6.0
V
DD
Dual ±1.5 ±2.5 ±3.0
V
V
SS
Negative Supply Voltage -1.5 -2.5 -3.0 V
I
DD
Supply Current No Load 2.5 5 MA
P
TOT
Total Power Dissipation No Load 12.5 25 mW
Copyright ANPEC Electronics Corp.
Rev. B.3 - Jun., 2003
APA2308
www.anpec.com.tw3
APA2308
Symbol Parameter Test Condition
Min. Typ. Max
Unit
DC Characteristics
V
I(OS)
Input Offset Voltage 5 MV
I
BIAS
Input Bias Current 10 PA
V
CM
Common Mode Voltage 0 3.5 V
G
V
Open-loop Voltage Gain
R
L
=5k
Ω
75 dB
I
O
Max. Output Current (THD+N)/S<0.1% 140 MA
R
O
Output Resistance 0.25
Ω
AC Characteristics
RL=32Ω
*
1
0.25 4.75V
O
Output Voltage Swing
R
L
=16
Ω*
1
0.5 4.5
V
PSRR Power Supply Rejection Ratio Fi=100Hz
V
RIPPLE(P -P)
=100mV
65 dB
\
CS
Channel Separation
R
L
=32
Ω
95 dB
C
L
Load Capacitance 200 pF
-65 -60 dB(THD+N)/S Total Harmonic Distortion Plus
Noise to Signal Ratio
R
L
=32Ω*
2
0.05 0.1
S/N Signal to Noise Ratio 90 100 dB
F
G
Unity G ain Freque nc y
R
L
=5kΩ
5MHz
P
O
Max. Output Power
(THD+N)/S<0.1%
84
mW
C
I
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 : V
DD
=5.0V ; V
O(P-P)
=3.5V (at 0 dB)
Electrical Characteristics Cont.
VDD=5V, VSS=0V, TA=25°C, fi=1kHz, RL=32Ω ( unless otherwise noted)
Copyright ANPEC Electronics Corp.
Rev. B.3 - Jun., 2003
APA2308
www.anpec.com.tw4
Test And Application Circuits
220pF
1
2
3
4
6
7
8
+
-
+
15k
Ω
15k
Ω
15k
Ω
15k
Ω
V
INA
V
INB
R
L
R
L
220µF
100
µ
F
V
DD
V
OUTA
V
OUTB
220µF
2.2
µ
F
220pF
5
2.2µF
APA2308
V
REF
typ.1/2V
DD
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