APA4880
Stereo 330mW 8Ω Speak Driver With Mute
Features •
Operating Voltage Single Supply Dual Supply 3V to 7V ±1.5V to ± 3.5V
Applications • • • • •
Portable Digital Audio Personal Computers Microphone Preamplifier CD ROM Player Headphone Amplifier
• • • • •
Depop Circuitry Integrated. High Signal-to-Noise Ratio High Slew Rate Low Distortion Output Power at 10% THD+N into 8 Ω into 16 Ω 3 30mW 2 00mW 100dB 5.5V/ms -66dB
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).
• • • • • • •
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
Ordering and Marking Information
APA4880
L e a d F re e C o d e H a n d lin g C o d e Tem p. Range Package Code Package Code J : P D IP - 8 K : SOP - 8 O : T S S O P -8 Tem p. Range I : - 4 0 to 8 5 ° C H a n d lin g C o d e TU : Tube TR : Tape & Reel L e a d F re e C o d e L : L e a d F re e D e v ic e B la n k : O rig in a l D e v ic e
APA4880 J :
APA4880 XXXXX
X X X X X - D a te C o d e
A P A 4 8 8 0 K /O :
APA4880 XXXXX
X X X X X - D a te C o d e
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.4 - Jan., 2003 1 www.anpec.com.tw
APA4880
Block Diagram
OutA INA 1 2 3 4 MUTE A -+ B +8 7 6 5 V DD OutB INB Mute
Bypass VSS
APA4880
Pin Function Description
Pin Name OUTA INA Bypass VSS Mute INB OUTB VDD No 1 2 3 4 5 6 7 8 I/O O I I I I O Description Channel A output pin Audio input channel A Connect to voltage divider for internal mid_supply bias Ground or negative supply voltage connection for circuitry. mute mode control signal input, place entire IC in mute mode when held high, Imute=140µA Audio input channel B Channel B output pin Supply voltage input pin
Absolute Maximum Ratings
Symbol VDD TSC(O) TA TJ TSTG TS VESD Parameter Supply Voltage Output Short-Circuit Duration , at TA=25°C , PTOT=1W Operating Ambient Temperature range Maximum Junction Temperature Storage Temperature Range Soldering Temperature , 10 seconds Electrostatic Discharge Rating 5 20 -40 to 85 150 -65 to+150 260 -3000 to 3000*1 Unit V S °C °C °C °C V
Note : *1. Human body model : C=100pF , R=1500Ω , 3 positive pulses plus 3 negative pulses
Copyright ANPEC Electronics Corp. Rev. A.4 - Jan., 2003
2
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APA4880
Thermal Characteristics
Symbol RTHJA Parameter Thermal Resistance from Junction to Ambient in Free Air SO-8 TSSOP-8 PDIP-8 Value 210 220 109 Unit K/W
Electrical Characteristics
TA=25°C, VDD=5V, VSS=0V, f=1kHz (unless otherwise noted)
Symbol IDD Parameter Test Conditions No Load VPINS Min. APA4880 Typ. Max. 3.0 140 5 0.05 0.04 0.03 240 150 85 330 200 110 50 85 85 100 7 5.5 20 Unit mA uA mV %
Supply Current IMUTE Mute Current VI(OS) Input Offset Voltage AC Characteristics (THD+N)/S Total Harmonic Distortion plus Noise to Signal Ratio Po Output Power
PSRR ATT Xtalk Gv Fg SR S/N
Power Supply Rejection Ratio Mute attenuation Channel Separation Open Loop Gain Unity Gain Frequency Slew Rate Signal to Noise Ratio
PO=200mW , RL=8Ω , f=1kHz PO=120mW , RL=16Ω , f=1kHz PO=75mW , RL=32Ω , f=1kHz (THD+N)/S=0.1% , f=1kHz RL=8Ω RL=16Ω RL=32Ω (THD+N)/S=10% , f=1kHz RL=8Ω RL=16Ω RL=32Ω CS=2.2uF , VRIPPLE=200mVRMS , f=120Hz Vin=1Vrms , RL=8Ω PO=200mV , RL=8Ω , Cb=2.2µF
mW
dB dB dB dB MHz V/us uVrms
Vin=1Vrms , RL=8Ω
Copyright ANPEC Electronics Corp. Rev. A.4 - Jan., 2003
3
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APA4880
Test And Application Circuits
+5V
220pF
0.1 µF
1 0 0 µF
15kΩ 8 2.2 µF Vin A 1 5 kΩ V DD 2 INA OUTA 1 2 0 0 kΩ 2 2 0 µF
3 2.2 µF
Bypass
Click and POP Mute Suppression Circuit
Mute
2 0 0 kΩ 2.2 µF Vin B 1 5 kΩ 2 2 0 µF 6 INB GND 1 5 kΩ 220pF 4 OUTB 7
Copyright ANPEC Electronics Corp. Rev. A.4 - Jan., 2003
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APA4880
Typical Characteristics
THD+N-Total Harmonic Distortion+Noise (%) THD+N-Total Harmonic Distortion+Noise (%)
10 5 2 1 0.5
10 5 2 1 0.5
VDD=5V RL=8Ω Av=-1
VDD=5V RL=16Ω Av=-1
f=20Hz
0.2 0.1 0.05 0.02 0.01 10m
f=20kHz
0.2 0.1 0.05
f=1kHz
f=20Hz
f=20kHz
f=1kHz
0.02 0.01 10m
20m 30m
50m
80m
200m
500m
20m
30m
50m 70m 100m
300m
Output Power (W)
Output Power (W)
THD+N-Total Harmonic Distortion+Noise (%)
THD+N-Total Harmonic Distortion+Noise (%)
10 5 2 1 0.5 0.2 0.1 0.05 0.02 0.01 10m
5 2 1 0.5
VDD=5V RL=32Ω Av=-1
VDD=3V RL=8Ω Av=-1
f=20Hz f=20kHz
f=20Hz
0.2 0.1 0.05 0.02 0.01 10m
f=20kHz
f=1kHz
f=1kHz
20m 30m 5 0 m 7 0 m 100m 300m
20m
30m
50m
70m
100m
200m
Output Power (W)
Output Power (W)
Copyright ANPEC Electronics Corp. Rev. A.3 - Jun., 2001
5
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APA4880
Typical Characteristics Cont.
THD+N-Total Harmonic Distortion+Noise (%) THD+N-Total Harmonic Distortion+Noise (%)
10 5 2 1 0.5 0.2 0.1 0.05 0.02 0.01 10m
10 5 2 1 0.5 0.2 0.1 0.05 0.02 0.01 10m
VDD=3V RL=16Ω Av=-1
VDD=3V RL=32Ω Av=-1
f=20Hz
f=20kHz
f=20Hz f=20kHz
f=1kHz
f=1kHz
20m
30m
40m 50m
70m 100m
12m
15m
20m
25m
30m 35m
45m
Output Power (W)
Output Power (W)
THD+N-Total Harmonic Distortion+Noise (%)
10 5 2 1 0.5 0.2 0.1 0.05 0.02 0.01 20
THD+N-Total Harmonic Distortion+Noise (%)
10 5 2 1 0.5 0.2 0.1 0.05 0.02 0.01 20
VDD=5V RL=8Ω Po=200mW Av=-1
VDD=5V RL=16Ω Po=120mW Av=-1
50
100
200
500
1k
2k
5k
20k
50
100
200
500
1k
2k
5k
20k
Frequency (Hz)
Frequency (Hz)
Copyright ANPEC Electronics Corp. Rev. A.3 - Jun., 2001
6
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APA4880
Typical Characteristics Cont.
THD+N-Total Harmonic Distortion+Noise (%) THD+N-Total Harmonic Distortion+Noise (%)
10 5 2 1 0.5 0.2 0.1 0.05 0.02 0.01 20
10 5 2 1 0.5 0.2 0.1 0.05 0.02 0.01 20
VDD=5V RL=32Ω Po=70mW Av=-1
VDD=3V RL=8Ω Po=70mW Av=-1
50
100
200
500
1k
2k
5k
20k
50
100
200
500
1k
2k
5k
20k
Frequency (Hz)
Frequency (Hz)
THD+N-Total Harmonic Distortion+Noise (%)
THD+N-Total Harmonic Distortion+Noise (%)
10 5 2 1 0.5 0.2 0.1 0.05 0.02 0.01 20
10 5 2 1 0.5 0.2 0.1 0.05 0.02 0.01 20
VDD=3V RL=16Ω Po=50mW Av=-1
VDD=3V RL=32Ω Po=25mW Av=-1
50
100
200
500
1k
2k
5k
20k
50
100
200
500
1k
2k
5k
20k
Frequency (Hz)
Frequency (Hz)
Copyright ANPEC Electronics Corp. Rev. A.3 - Jun., 2001
7
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APA4880
Typical Characteristics Cont.
180
70
PD-Power Disspation (mW)
PD-Power Disspation (mW)
160 140 120 100 80 60 40 20 0 0 50 100
RL=8Ω
60 50 40 30 20 10 0
RL=8Ω
RL=16Ω RL=32Ω VDD=5V Av=-1 f=1kHz BW
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