ANPEC APA4800 handbook
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APA4800
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/ µ s |
• |
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
Applications
•Portable Digital Audio
•Personal Computers
•Microphone Preamplifier
Gereral Description
The APA4800 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 .
Ordering Information
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
Out A |
1 |
8 |
VDD |
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Inverting Input A |
2 |
7 |
Out B |
Non-inverting Input A |
- + |
+ - |
Inverting Input B |
3 |
6 |
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VSS |
4 |
5 |
Non-inverting Input B |
APA4800
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 - Apr., 2001
APA4800
Absolute Maximum Ratings
Symbol |
Parameter |
Rating |
Unit |
VDD |
Supply Voltage |
5 |
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 |
V |
Electrostatic Discharge |
-3000 to 3000 *1 |
V |
ESD |
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Note: *1. Human body model : C=100pF, R=1500Ω , 3 positive pulses plus 3 negative pulses |
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Thermal Characteristics |
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Symbol |
Parameter |
Value |
Unit |
RTHJA |
Thermal Resistance from Junction to Ambient in Free Air |
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DIP-8 |
109 |
K/W |
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SO-8 |
210 |
K/W |
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Electrical Characteristics TA=25°C, f=1kHz( unless otherwise noted)
Symbol |
Parameter |
Test Conditions |
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APA4800 |
Unit |
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Min. |
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Typ. |
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Max. |
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VDD |
Power Supply Voltage |
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2.7 |
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5.5 |
V |
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VDD=5V |
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IDD |
Supply Current |
No Load |
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2.5 |
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|
mA |
VI(OS) |
Input Offset Voltage |
|
|
|
5 |
|
50 |
mV |
|
AC Characteristics |
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(THD+N)/S |
Total Harmonic Distortion |
PO =200mW, RL=8Ω , f=1kHz |
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0.1 |
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|
% |
|
plus Noise to Signal |
PO =120mW, RL=16Ω , f=1kHz |
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0.05 |
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|
Ratio |
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PO |
Output Power |
(THD+N)/S=0.2%, f=1kHz |
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|
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|
mW |
|
|
RL=8Ω |
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|
210 |
|
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RL=16Ω |
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|
140 |
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PO |
Output Power |
(THD+N)/S=10%, f=1kHz |
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|
mW |
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|
RL=8Ω |
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|
290 |
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RL=16Ω |
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190 |
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PSRR |
Power Supply Rejection |
CB=2.2 µ F,VRIPPLE=200mVrms, |
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55 |
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dB |
|
Ratio |
f=120Hz |
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S/N |
Signal to Noise Ratio |
RL=8Ω |
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|
20 |
|
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µ Vrms |
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Copyright ANPEC Electronics Corp. |
2 |
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|
www.anpec.com.tw |
||||
Rev. A.2 - Apr., 2001 |
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APA4800
Electrical Characteristics Cont. TA=25°C, f=1kHz( unless otherwise noted)
Symbol |
Parameter |
Test Conditions |
|
APA4800 |
|
Unit |
|||
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Min. |
|
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Typ. |
|
Max. |
|
VDD=3V |
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IDD |
Supply Current |
No Load |
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|
2.2 |
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|
mA |
|
VI(OS) |
Input Offset Voltage |
|
|
|
5 |
|
|
mV |
|
AC Characteristics |
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|
|
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(THD+N)/S |
Total Harmonic Distortion |
PO =50mW, RL=8Ω , f=1kHz |
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0.15 |
|
|
% |
|
|
plus Noise to Signal |
PO =40mW, RL=16Ω , f=1kHz |
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Ratio |
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PO |
Output Power |
(THD+N)/S=0.2%, f=1kHz |
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|
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|
mW |
|
|
RL=8Ω |
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|
60 |
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RL=16Ω |
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45 |
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PO |
Output Power |
(THD+N)/S=10%, f=1kHz |
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|
|
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|
mW |
|
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RL=8Ω |
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|
90 |
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RL=16Ω |
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65 |
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Test And Application Circuits
VDD |
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220pF |
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220µ F |
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15kΩ |
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VOUTA |
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|
1 |
8 |
RL |
2.2µ F |
|
2 |
- |
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VINA |
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15kΩ |
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+ |
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3 |
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APA4800 |
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VREF |
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100µ F |
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typ.1/2VDD |
|
5 |
- + |
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VINB |
15kΩ |
6 |
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2.2µ F |
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|
7 |
4 |
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15kΩ |
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VOUTB |
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220µ F |
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220pF |
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RL |
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Copyright ANPEC Electronics Corp. |
3 |
www.anpec.com.tw |
Rev. A.2 - Apr., 2001 |
|
|
APA4800
Typical Characteristics
THD+N vs Output Power
|
10 |
|
|
|
VDD= 5V |
|
|
|
RL=8Ω |
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AV= -1 |
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BW<80kHz |
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1 |
f=20Hz |
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(%) |
|
f=20kHz |
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THD+N |
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|
0.1 |
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f=1kHz |
|
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0.0110m |
100m |
500m |
Output Power (W)
THD+N vs Frequency
|
10 |
|
|
|
|
|
VDD= 5V |
|
|
|
|
|
PO=200mW |
|
|
|
|
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RL=8Ω |
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|
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(%) |
NO FILTERS |
|
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1 |
|
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|
|
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THD+N |
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AV= -2 |
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AV= -5 |
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0.1 |
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AV= -1 |
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0.01 |
|
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|
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|
20 |
100 |
1k |
10k |
20k |
Frequency (Hz)
THD+N vs Output Power
|
10 |
|
|
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VDD= 5V |
|
|
|
RL=16Ω |
|
|
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AV= -1 |
|
|
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BW<80kHz |
|
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|
1 |
f=20Hz |
|
(%) |
|
f=20kHz |
|
THD+N |
|
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|
0.1 |
|
|
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f=1kHz |
|
|
0.0110m |
100m |
300m |
Output Power (W)
THD+N vs Frequency
|
10 |
|
|
|
|
VDD= 5V |
|
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|
PO=120mW |
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RL=16Ω |
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NO FILTERS |
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|
(%) |
1 |
|
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THD+N |
|
AV= -2 |
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AV= -5 |
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0.1 |
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AV= -1 |
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0.01 20 |
100 |
1k |
10k 20k |
Frequency (Hz)
Copyright ANPEC Electronics Corp. |
4 |
www.anpec.com.tw |
Rev. A.2 - Apr., 2001 |
|
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