Data Sheet Advanced Analog Circuits LOW VOLTAGE AUDIO POWER AMPLIFIER General Description Features The AZ386 is a power amplifier designed for use in low voltage consumer applications. The gain is internally set to 20dB to keep external part count low, but the addition of an external resistor and capacitor between pins 1 and 8 will increase the gain to any value from 20 to 200dB. · · · · · · · The inputs are ground referenced while the output automatically biases to one-half the supply voltage. The quiescent power drain is only 24mW when operating from a 6V supply, making the AZ386 ideal for battery operation. AZ386 Wide supply voltage range: 5V to 18V Low quiescent current drain: 4.5mA Voltage gains from 20 to 200dB Battery operation Minimum external parts Low power dissipation Low distortion Applications · · · · · · · · · AM - FM radio amplifier Cordless phone TV sound systems Portable tape player amplifier Intercoms Line drivers Ultrasonic drivers Small servo drivers Power converters DIP-8 SOIC-8 Figure 1. Package Types of AZ386 June 2003 1 Rev. 1.0 Data Sheet Advanced Analog Circuits LOW VOLTAGE AUDIO POWER AMPLIFIER AZ386 Pin Configuration M Package/P Package (SOIC-8/DIP-8) GAIN 1 8 GAIN INPUT - 2 7 BYPASS INPUT + 3 6 VCC GND 4 5 VOUT Top View Figure 2. Pin Configuration of AZ386 Functional Block Diagram 6 VCC 7 BYPASS 15KΩ GAIN 8 GAIN 1 15KΩ 150Ω 5 15KΩ 1.35KΩ 2 VOUT 3 INPUT - INPUT + 50KΩ 50KΩ 4 GND Figure 3. Functional Block Diagram of AZ386 June 2003 2 Rev. 1.0 Data Sheet Advanced Analog Circuits LOW VOLTAGE AUDIO POWER AMPLIFIER AZ386 Ordering Information Package SOIC-8 DIP-8 Temperature Range -40 oC~85 oC Part Number AZ386M AZ386P Marking ID 386M AZ386P Packing Type Tube/Tape/Reel Tube Absolute Maximum Ratings (Note 1) Parameter Symbol Value Unit Power Supply Voltage VCC 20 V Package Dissipation (Note 2) PD AZ386P 1.25 W AZ386M 0.73 W Input Voltage VIN -0.4 Operating Temperature Range TOP -40 to 85 o C Junction Temperature TJ 150 o C TSTG -65 to 150 o C Storage Temperature Range Soldering Information Thermal Resistance θJA V DIP-8 Soldering (10 sec.) 260 SOIC-8 (15 sec.) 215 DIP 107 SOIC 172 oC o C/W Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "Recommended Operatiing Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods may affect device reliability. Note 2: For operation in ambient temperatures (TA) above 25oC, the device must be derated based on a 150oC maximum junction temperature and 1) a thermal resistance of 107oC/W junction to ambient for the dual-in-line package and 2) a thermal resistance of 170oC/W for the small outline package. June 2003 3 Rev. 1.0 Data Sheet Advanced Analog Circuits LOW VOLTAGE AUDIO POWER AMPLIFIER AZ386 Electrical Characteristics (Note 3) Operating Conditions: TA=25oC unless otherwise specified. Parameter Supply Voltage Quiescent Current Output Power Symbol Test Conditions POUT Typ 5 VCC IQ Min VCC = 6V, VIN = 0 4.5 Max Unit 18 V 8 mA VCC = 6V, RL = 8Ω, THD = 10% 250 325 mW VCC = 9V, RL = 8Ω, THD = 10% 500 700 mW VCC = 16V, RL = 32Ω, THD = 10% 700 1000 mW VCC = 6V, f = 1KHz 10µF from Pin 1 to 8 26 dB 46 dB BW VCC = 6V, Pins 1 and 8 open 300 KHz Total Harmonic Distortion THD VCC = 6V, RL = 8Ω, POUT = 125mW f=1KHz, Pins 1 and 8 open 0.2 % Power Supply Rejection Ratio PSRR VCC = 6V, f=1KHz, CBYPASS = 10µF, Pins 1 and 8 open, Referred to Output 50 dB 50 KΩ 250 nA Voltage Gain Bandwidth GV Input Resistance RIN Input Bias Current IBIAS VCC = 6V, Pin 2 and 3 open Note 3: All voltages are measured with respect to the ground pin, unless otherwise specified. June 2003 4 Rev. 1.0 Data Sheet Advanced Analog Circuits LOW VOLTAGE AUDIO POWER AMPLIFIER AZ386 Typical Performance Characteristics 60 6.0 5.6 Power Supply Rejection Ratio (dB) Supply Current (mA) 5.8 o TA=25 C 5.4 5.2 5.0 4.8 4.6 4.4 C7=50uF 50 C7=10uF 40 30 C7=1uF 20 No Bypass Capacitor 10 4.2 4.0 4 5 6 7 8 9 10 11 0 10 12 100 Supply Voltage (V) 1k 10k 100k Frequency (Hz) Figure 4. Quiescent Supply Current vs. Supply voltage Figure 5. Power Supply Rejection Ratio (Referred to the Output) vs. Frequency 12 50 10 RL= α RL=4Ω 6 4 30 C1,8=0 20 10 2 0 C1,8=10uF 40 RL=16Ω 8 Voltage Gain (dB) Output Voltage Swing (V) RL=8 Ω 4 5 6 7 8 9 10 11 0 100 12 1k Figure 6. Peak-to-Peak Output Voltage Swing vs. Supply Voltage 100k 1M Figure 7. Voltage Gain vs. Frequency 11 0.55 VCC=6V RL=8Ω POUT=125mW C1,8=0 0.50 0.45 10 Total Harmonic Distortion ( % ) Total Harmonic Distortion (%) 10k Frequency (Hz) Supply Voltage (V) 0.40 0.35 0.30 0.25 0.20 0.15 VCC=6V RL=8Ω f=1KHz 9 8 7 6 5 4 3 2 1 20 100 1k 10k 1 Frequency (Hz) Figure 8. Distortion vs. Frequency June 2003 10 100 Power Out ( mW ) Figure 9. Distortion vs. Output Power 5 Rev. 1.0 Data Sheet Advanced Analog Circuits LOW VOLTAGE AUDIO POWER AMPLIFIER AZ386 Typical Performance Characteristics (Continued) 1.8 1.6 1.4 1.4 1.2 Device Dissipation (W) Device Dissipation (W) 1.6 VCC=12 V 1.0 0.8 THD=3% 0.6 0.4 VCC=16 V 1.2 THD=3% 1.0 VCC=12 V 0.8 0.6 THD=3% THD=10% 0.4 THD=10% VCC=6 V 0.2 0.0 0.0 0.1 0.2 0.3 0.2 VCC=6 V 0.0 0.0 0.4 0.1 0.2 0.3 Output Power (W) 0.4 0.5 0.6 0.7 0.8 0.9 Output Power (W) Figure 10. Device Dissipation vs. Output Power (4Ω Load) Figure 11. Device Dissipation vs. Output Power (8Ω Load) Typical Applications VCC VCC 6 6 2 - 2 - 1 10KΩ AZ386 3 8 5 10KΩ 7 4 10Ω 3 7 + 4 Figure 13. Amplifier With Gain = 20dB June 2003 AZ386 VIN 0.05µF + 1 250µF 8 VIN 10µF BYPASS 250µF 5 0.05µF 10Ω Figure 14. Amplifier With Gain = 200dB 6 Rev. 1.0 Data Sheet Advanced Analog Circuits LOW VOLTAGE AUDIO POWER AMPLIFIER AZ386 Typical Applications (Continued) VCC 1.2KΩ VCC 10µF 6 2 - 250µF 8 VIN 10KΩ AZ386 3 ELDEMA CF-S-2158 1 7 6 1 AZ386 3V - 15mA 0.05µF 3 10Ω 4 BYPASS 10µF 2 - + 7 2 8 AZ386 + 7 4 10Ω 0.01µF 6 0.033µF 10KΩ 1 3 RL VCC 6 10KΩ 0.05µF Figure 16. Low Distortion Power Wienbridge Oscillator VCC - 0.01µF 47KΩ BYPASS Figure 15. Amplifier With Gain = 50dB VO 5 4.7KΩ 2 50µF 8 5 + 390Ω 30KΩ 1 8 0.1µF 250µF V o AZ386 5 0.05µF 3 10Ω - + 50µF vo 5 7 RL 4 RL 10KΩ 1KΩ f = 1KHz Figure 17. Amplifier With Bass Boost June 2003 Figure 18. Square Wave Oscillator 7 Rev. 1.0 Data Sheet Advanced Analog Circuits LOW VOLTAGE AUDIO POWER AMPLIFIER AZ386 Mechanical Dimensions DIP-8 Unit: mm 7.62±0.25 5° 9.2±0.10 6° 6° 4° 3.30±0.30 1.46±0.31 4° 0.7 φ3×0.15±0.05 0.254 0.457 0.28±0.07 2.54 10.0MAX R0.75 June 2003 6.60±0.50 0.13MIN 8 Rev. 1.0 Data Sheet Advanced Analog Circuits LOW VOLTAGE AUDIO POWER AMPLIFIER AZ386 Mechanical Dimensions (Continued) Unit: mm 0.2±0.10 7° 0.70±0.025 4.9±0.10 7° 0.22±0.03 1.55±0.20 SOIC-8 0.32 8° 8° D 6.00±0.20 0.90 1.00 3.90±0.10 φ0.8 0.20 D 20:1 ±4° 4° R0.15 R0.15 3° ±2° 0.42±0.09 June 2003 9 Rev. 1.0 Advanced Analog Circuits http://www.aacmicro.com USA: 860 Hillview Court, Suite 160, Milpitas, CA 95035, USA Tel: 408-586 8809, Fax: 408-586 8801 China: 8th Floor, Zone B, 900 Yi Shan Road，Shanghai 200233, China Tel: 86-21-6495-9539, Fax: 86-21-6485-9673 Taiwan: Room 2210, 22nd Fl, 333, Keelung Road, Sec.1, Taipei 110, Taiwan Tel: 886-2-2758 6828, Fax: 886-2-2758 6892 IMPORTANT NOTICE Advanced Analog Circuits Corporation reserves the right to make changes without further notice to any products or specifications herein. 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