APA4880
Stereo 330mW 8Ω Speak Driver With Mute
Features
•Operating Voltage
Single Supply |
3V to 7V |
Dual Supply |
±1.5V to ± 3.5V |
•Depop Circuitry Integrated.
• |
High Signal-to-Noise Ratio |
100dB |
• |
High Slew Rate |
5.5V/ms |
• |
Low Distortion |
-66dB |
•Output Power at 10% THD+N
into 8Ω |
330mW |
into 16Ω |
200mW |
•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,TSSOP or PDIP Package
Applications
•Portable Digital Audio
•Personal Computers
•Microphone Preamplifier
•CD ROM Player
•Headphone Amplifier
Gereral Description
The APA4880 is an integrated class AB stereo headphone amplifier contained in an SO-8 or a DIP-8 plastic package. The APA4880 is capable of delivering 330mW 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. Both of the depop circuitry and mute circuitry are integrated in the APA4880 , that reduces pops and clicks noise during power up and when using the mute mode(high active).
Ordering and Marking Information
APA4880 |
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P ackage C ode |
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H andling C ode |
J : P D IP - 8 |
K : S O P - 8 |
O : TS S O P -8 |
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Tem p. R ange |
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Tem p. R ange |
I : - 40 to 85 ° C |
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H andling C ode |
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P ackage C ode |
T U : Tube |
T R : Tape & R eel |
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A P A 4880 J : |
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A P A 4880 |
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X X X X X - D ate C ode |
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X X X X X |
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A P A 4880 K /O : |
A P A 4880 |
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X X X X X - D ate C ode |
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X X X X X |
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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.4 - Jan., 2003 |
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APA4880
Block Diagram
OutA |
1 |
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8 |
VDD |
INA |
2 |
A |
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B |
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7 |
OutB |
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- |
+ |
+ |
- |
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Bypass |
3 |
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6 |
INB |
VSS |
4 |
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MUTE |
5 |
Mute |
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APA4880 |
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Pin Function Description
Pin Name |
No |
I/O |
Description |
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OUTA |
1 |
O |
Channel A output pin |
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INA |
2 |
I |
Audio input channel A |
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Bypass |
3 |
I |
Connect to voltage divider for internal mid_supply bias |
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VSS |
4 |
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Ground or negative supply voltage connection for circuitry. |
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Mute |
5 |
I |
mute mode control signal input, place entire IC in mute mode when held |
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high, Imute=140 A |
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INB |
6 |
I |
Audio input channel B |
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OUTB |
7 |
O |
Channel B output pin |
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VDD |
8 |
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Supply voltage input pin |
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Absolute Maximum Ratings
Symbol |
Parameter |
Rating |
Unit |
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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
Copyright ANPEC Electronics Corp. |
2 |
www.anpec.com.tw |
Rev. A.4 - Jan., 2003 |
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APA4880
Thermal Characteristics
Symbol |
Parameter |
Value |
Unit |
RTHJA |
Thermal Resistance from Junction to Ambient in Free Air |
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SO-8 |
210 |
K/W |
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TSSOP-8 |
220 |
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PDIP-8 |
109 |
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Electrical Characteristics
TA=25°C, VDD=5V, VSS=0V, f=1kHz (unless otherwise noted)
Symbol |
Parameter |
Test Conditions |
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APA4880 |
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Unit |
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Min. |
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Typ. |
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Max. |
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IDD |
Supply Current |
No Load |
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3.0 |
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mA |
IMUTE |
Mute Current |
VPINS |
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140 |
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uA |
VI(OS) |
Input Offset Voltage |
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5 |
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mV |
AC Characteristics |
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(THD+N)/S |
Total Harmonic Distortion |
PO=200mW , RL=8Ω , f=1kHz |
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0.05 |
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% |
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plus Noise to Signal Ratio |
PO=120mW , RL=16Ω , f=1kHz |
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0.04 |
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PO=75mW , RL=32Ω , f=1kHz |
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0.03 |
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Po |
Output Power |
(THD+N)/S=0.1% , f=1kHz |
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mW |
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RL=8Ω |
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240 |
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RL=16Ω |
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150 |
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RL=32Ω |
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85 |
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(THD+N)/S=10% , f=1kHz |
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RL=8Ω |
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330 |
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RL=16Ω |
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200 |
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RL=32Ω |
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110 |
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PSRR |
Power Supply Rejection |
CS=2.2uF , VRIPPLE=200mVRMS , |
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50 |
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dB |
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Ratio |
f=120Hz |
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ATT |
Mute attenuation |
Vin=1Vrms , RL=8Ω |
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85 |
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dB |
Xtalk |
Channel Separation |
PO=200mV , RL=8Ω , Cb=2.2µ F |
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85 |
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dB |
Gv |
Open Loop Gain |
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100 |
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dB |
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Fg |
Unity Gain Frequency |
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7 |
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MHz |
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SR |
Slew Rate |
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5.5 |
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V/us |
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S/N |
Signal to Noise Ratio |
Vin=1Vrms , RL=8Ω |
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20 |
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uVrms |
Copyright ANPEC Electronics Corp. |
3 |
www.anpec.com.tw |
Rev. A.4 - Jan., 2003 |
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APA4880
Test And Application Circuits
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+5V |
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220pF |
0.1µ F |
100µ F |
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15kΩ |
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8 |
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2.2µ F |
15kΩ |
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VDD |
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220µ F |
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Vin A |
2 |
INA |
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OUTA |
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1 |
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200kΩ |
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3 |
Bypass |
Click and POP |
Mute |
Mute |
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Suppression Circuit |
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2.2µ F |
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200kΩ |
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2.2µ F |
15kΩ |
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220µ F |
INB |
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OUTB |
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Vin B |
6 |
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GND |
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15kΩ |
4 |
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220pF |
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Copyright ANPEC Electronics Corp. |
4 |
www.anpec.com.tw |
Rev. A.4 - Jan., 2003 |
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APA4880
Typical Characteristics
(%) |
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Distortion+Noise |
10 |
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5 |
VDD=5V |
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RL=8Ω |
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2 |
Av=-1 |
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1 |
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Harmonic |
0.5 |
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f=20Hz |
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0.2 |
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f=1kHz |
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0.1 |
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THD+N-Total |
0.05 |
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f=20kHz |
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0.02 |
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0.01 |
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10m |
20m |
30m |
50m |
80m |
200m |
500m |
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Output Power (W)
(%) |
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Distortion+Noise |
5 |
VDD=5V |
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RL=32Ω |
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2 |
Av=-1 |
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1 |
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Harmonic |
0.5 |
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f=20Hz |
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0.2 |
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f=20kHz |
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0.1 |
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THD+N-Total |
0.05 |
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0.02 |
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f=1kHz |
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0.01 |
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10m |
20m |
30m |
50m |
70m 100m |
300m |
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Output Power (W)
(%) |
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Distortion+Noise |
10 |
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5 |
VDD=5V |
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RL=16Ω |
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2 |
Av=-1 |
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1 |
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Harmonic |
0.5 |
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f=20kHz |
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0.2 |
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f=20Hz |
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0.1 |
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THD+N-Total |
0.05 |
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f=1kHz |
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0.02 |
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0.01 |
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10m |
20m |
30m |
50m 70m 100m |
300m |
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Output Power (W)
(%) |
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Distortion+Noise |
10 |
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5 |
VDD=3V |
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RL=8Ω |
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2 |
Av=-1 |
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1 |
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f=20Hz |
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Harmonic |
0.5 |
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0.2 |
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f=20kHz |
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0.1 |
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THD+N-Total |
0.05 |
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f=1kHz |
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0.02 |
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0.01 |
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10m |
20m |
30m |
50m |
70m |
100m |
200m |
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Output Power (W)
Copyright ANPEC Electronics Corp. |
5 |
www.anpec.com.tw |
Rev. A.3 - Jun., 2001 |
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