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MAX9702 Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX9702 Datasheet(HTML) 4 Page - Maxim Integrated Products |
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4 / 32 page  1.8W, Filterless, Stereo, Class D Audio Power Amplifier and DirectDrive Stereo Headphone Amplifier 4 _______________________________________________________________________________________ ELECTRICAL CHARACTERISTICS (VDD = 3.3V) (continued) (VDD = PVDD = CPVDD = SHDN = 3.3V, GND = PGND = CPGND = 0V, SYNC = VDD (SSM), speaker gain = +12dB, headphone gain = +1dB. Speaker load RL connected between OUT+ and OUT-, unless otherwise noted, RL = ∞. Headphone load RLH connected between HPR/HPL to GND. CBIAS = 1µF to GND, 1µF capacitor between C1P and C1N, CVSS = 1µF. TA = TMIN to TMAX, unless oth- erwise noted. Typical values are at TA = +25°C.) (Notes 1, 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS HEADPHONE AMPLIFIERS (HPS = VDD) TA = +25°C ±1.8 ±6 Output Offset Voltage VOS TMIN to TMAX ±8 mV VDD = 2.5V to 5.5V 66 75 fRIPPLE = 217Hz 73 Power-Supply Rejection Ratio (Note 4) PSRR 100mVP-P ripple, VIN = 0V, TA = +25°C fRIPPLE = 20kHz 53 dB RL = 32 Ω 48 Output Power POUT THD+N = 1%, VDD = 3.3V, TA = +25°C RL = 16 Ω 47 mW RL = 16 Ω (POUT = 40mW, f = 1kHz) 0.03 Total Harmonic Distortion Plus Noise THD+N RL = 32 Ω (POUT = 32mW, f = 1kHz) 0.015 % BW = 22Hz to 22kHz 95.5 Signal-to-Noise Ratio SNR VOUT = 1VRMS, RL = 32 Ω A-weighted 97.9 dB Charge-Pump Frequency fCP fOSC/2 kHz Into shutdown 65 Click-and-Pop Level KCP Peak voltage, 32 samples/second, A-weighted (Note 3) Out of shutdown 85 dB Slew Rate SR ±1V output step 0.3 V/µs B4 = 0 B3 = 0 -2 B4 = 0 B3 = 1 +1 B4 = 1 B3 = 0 +4 Gain (see I 2C Section) AV B4 = 1 B3 = 1 +7 dB Channel-to-Channel Gain Tracking ±0.2 % Capacitance Drive CL No sustained oscillations 300 pF Crosstalk L to R, R to L, f = 10kHz, RL = 16 Ω, POUT = 10mW 70 dB HP_ Resistance to GND In speaker mode 1 k Ω DIGITAL INPUTS ( SHDN, SYNC, SDA, SCL, HPS) Input Voltage High, SHDN, SYNC, HPS VINH 2V Input Voltage High, SCL VINH 0.7 x VDD V Input Voltage Low, SHDN, SYNC, HPS VINL 0.8 V |
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Similar Description - MAX9702 |
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