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MAX9768B Datasheet(PDF) 10 Page - Maxim Integrated Products |
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MAX9768B Datasheet(HTML) 10 Page - Maxim Integrated Products |
10 / 25 page 10W Mono Class D Speaker Amplifier with Volume Control 10 ______________________________________________________________________________________ WIDEBAND OUTPUT SPECTRUM (SPREAD-SPECTRUM MODULATION MODE) FREQUENCY (MHz) 1000 10 100 -90 -100 -80 -70 -30 -40 -50 -60 0 -10 -20 1 RBW = 10kHz INPUT AC GROUNDED PWM MODE TURN-ON/OFF RESPONSE (MAX9768) MAX9768 toc32 100ms/div SHDN 2V/div OUT 500mA/div TURN-ON/OFF RESPONSE (MAX9768B) MAX9768 toc33 40ms/div SHDN 2V/div OUT 500mA/div VOLUME CONTROL LEVEL vs. VOLUME CONTROL VOLTAGE VVOL (V) 3.5 2.0 1.5 1.0 0.5 3.0 2.5 -100 -80 -60 -20 -40 20 0 -120 0 SUPPLY CURRENT (PVDD) vs. SUPPLY VOLTAGE SUPPLY VOLTAGE (V) 14 10 8 612 0.5 1.0 1.5 3.0 2.0 2.5 4.0 3.5 0 4 PWM MODE RL = ∞ FILTERLESS MODULATION SUPPLY CURRENT (VDD) vs. SUPPLY VOLTAGE SUPPLY VOLTAGE (V) 3.6 3.2 3.0 2.8 3.4 7 9 13 11 15 5 2.6 PWM MODE FILTERLESS MODULATION SHUTDOWN CURRENT vs. SUPPLY VOLTAGE SUPPLY VOLTAGE (V) 14 10 8 612 0.35 0.45 0.40 0.50 0.30 4 SHUTDOWN CURRENT = IPVDD + IDD VDD = 3.3V Typical Operating Characteristics (continued) (PVDD = 12V, VDD = 3.3V = GND = PGND = 0V, VMUTE = 0V; 0dB volume setting; all speaker load resistors connected between OUT+ and OUT-, RL = 8Ω, unless otherwise noted. CBIAS = 2.2µF, C1 = C2 = 0.1µF, CIN = 0.47µF, RIN = 20kΩ, RFB = 30kΩ, spread-spectrum modulation mode.) |
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