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PAM8905 Datasheet(PDF) 4 Page - Diodes Incorporated |
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PAM8905 Datasheet(HTML) 4 Page - Diodes Incorporated |
4 / 9 page PAM8905 Document number: DS37026 Rev. 2 - 2 4 of 9 www.diodes.com May 2015 © Diodes Incorporated PAM8905 A Product Line of Diodes Incorporated 1.9W Class-D Audio Amplifier with Integrated Boost Converter and Battery Tracking AGC Electrical Characteristics (@VBAT=3.6V, AGC=GND, TA = +25°C, RL=8Ω+33µH, unless otherwise specified.) Symbol Parameter Test Conditions MIN TYP MAX UNIT VBAT Supply Voltage 2.8 5.2 V Po Output Power THD+N=1%,f=1kHz VBAT=3.6V 1900 mW VBAT=3.0V 1750 VBAT=2.8V 1600 THD+N Total Harmonic Distortion Plus Noise Po=1.0W,RL=8 Ω f=1kHz 0.07 % Po=2W,RL=4 Ω 0.15 PSRR Power Supply Ripple Rejection VBAT=3.6V, Inputs AC- G rounded with C=1μF f=217Hz -70 dB f=1kHz -70 SNR Signal-to-Noise Ratio A-Weighting THD+N=1% 95 dB Vop Peak Output Voltage VBAT=3.6V f=1kHz 5.75 V Vo_TH Boost Convertor Auto-Pass Through Threshold 2 Vpk Vn Output Noise Inputs AC-Grounded No A-Weighting 100 μV A-Weighting 60 η Efficiency VBAT=4.2V, Po=1.5W f=1kHz 85 % IQ Quiescent Current VBAT=3.6V No Load 4 mA Isd Shutdown Current VBAT=2.8V to 5.2V EN=0V 1 μA Rdson Static Drain-to Source On- State Resistor High Side PMOS,I=500mA VBAT=5V 260 mΩ Low Side NMOS,I=500mA VBAT=5V 160 mΩ fsw Switching Frequency VBAT=2.8V to 5.2V Boost 1200 kHz Class D 300 Gv Closed-Loop Gain 20 dB RIN Input Impedance Av=20dB 24 KΩ Vos Output Offset Voltage Input AC-Ground 10 mV Ipeak Convertor SW Peak Current VBAT=3.6V 2 A Ton Start-up Time From EN 6 mS VIH EN Input High Voltage VBAT=5V 1.3 V VIL EN Input Low Voltage VBAT=5V 0.6 |
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