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MAX9750CEUI Datasheet(PDF) 9 Page - Maxim Integrated Products |
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MAX9750CEUI Datasheet(HTML) 9 Page - Maxim Integrated Products |
9 / 30 page 2.6W Stereo Audio Power Amplifiers and DirectDrive Headphone Amplifiers _______________________________________________________________________________________ 9 TURN-ON RESPONSE (HEADPHONE MODE) MAX9750/51 toc28 10ms/div SHDN 5V/div 20mV/div HPOUT_ RL = 32 Ω TURN-OFF RESPONSE (HEADPHONE MODE) MAX9750/51 toc29 10ms/div SHDN 5V/div 20mV/div HPOUT_ RL = 32 Ω SUPPLY CURRENT vs. SUPPLY VOLTAGE SUPPLY VOLTAGE (V) 5.25 5.00 4.75 4 2 6 8 12 10 14 16 18 0 4.50 5.50 HPS = GND HPS = VDD SHUTDOWN SUPPLY CURRENT vs. SUPPLY VOLTAGE SUPPLY VOLTAGE (V) 5.25 5.00 4.75 4.50 5.50 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0 Typical Operating Characteristics (continued) (Measurement BW = 22Hz to 22kHz, TA = +25°C, unless otherwise noted.) OUTPUT POWER vs. CHARGE-PUMP CAPACITANCE AND LOAD RESISTANCE LOAD RESISTANCE ( Ω) 40 30 20 20 40 60 80 100 120 140 160 180 200 0 10 50 VDD = 5V f = 1kHz THD+N = 1% C1 = C2 = 2.2 µF C1 = C2 = 1 µF HEADPHONE OUTPUT SPECTRUM FREQUENCY (Hz) 15 10 5 0 020 -120 -100 -80 -60 -40 -20 -140 VDD = 5V f = 1kHz VOUT = -60dB RL = 32 Ω 10 100 1k 10k 100k CROSSTALK vs. FREQUENCY (HEADPHONE MODE) FREQUENCY (Hz) VCC = 5V VRIPPLE = 200mVP-P RL = 32 Ω LEFT TO RIGHT RIGHT TO LEFT -100 -80 -60 -40 -20 0 -120 |
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