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MAX97000 Datasheet(PDF) 8 Page - Maxim Integrated Products |
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MAX97000 Datasheet(HTML) 8 Page - Maxim Integrated Products |
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8 / 33 page 
Audio Subsystem with Mono Class D Speaker and Class H Headphone Amplifier 8 ELECTRICAL CHARACTERISTICS (continued) (VLDOIN = VPVDD = VSHDN = 3.7V, VGND = VPGND = 0V. Input signal applied at INA configured single-ended, preamp gain = 0dB, HPLVOL = HPRVOL= SPKVOL = 0dB, speaker loads (ZSPK) connected between OUTP and OUTN. Headphone loads (RHP) con- nected from HPL or HPR to GND. SDA and SCL pullup voltage = 1.8V. ZSPK = J, RHP = J. CC1P-C1N = CHPVDD = CHPVSS = CBIAS = 1FF. TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25NC.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Total Harmonic Distortion + Noise THD+N POUT = 10mW, f = 1kHz RHP = 32I 0.02 % RHP = 16I 0.03 0.1 Signal-to-Noise Ratio SNR A-weighted, RHP = 16I, HPLMIX = 0x01, HPRMIX = 0x02, IN_DIFF = 0 100 dB Slew Rate SR 0.35 V/Fs Capacitive Drive CL 200 pF Crosstalk HPL to HPR, HPR to HPL, f = 20Hz to 20kHz 65 dB ANALOG SWITCH On-Resistance RON INC_ = 20mA, VCOM_ = 0V and PVDD, SWEN = 1 TA = +25NC 1.6 4 I TA = TMIN to TMAX 5.2 Total Harmonic Distortion + Noise VDIFCOM_ = 2VP-P, VCMCOM_= PVDD/2, f = 1kHz, SWEN = 1, ZSPK = 8I + 68FH 10I in series with each switch 0.05 % No series resistors 0.3 Off-Isolation SWEN = 0, COM1 and COM2 to GND = 50I, f = 10kHz, referred to signal applied to NC1 and NC2 105 dB PREAMPLIFIER Gain PGAIN_ = 000 -6.5 -6 -5.5 dB PGAIN_ = 001 -3.5 -3 -2.5 PGAIN_ = 010 -0.5 0 0.5 PGAIN_ = 011 2.5 3 3.5 PGAIN_ = 100 5.5 6 6.5 PGAIN_ = 101 8.5 9 9.5 PGAIN_ = 110 17.5 18 18.5 VOLUME CONTROL Volume Level HP_VOL = 0x1F 5.5 6 6.5 dB HP_VOL = 0x00 -68 -64 -60 SPKVOL = 0x3F 19 20 21 SPKVOL = 0x00 -31 -30 -29 Mute Attenuation f = 1kHz Speaker 109 dB Headphone 101 Zero-Crossing Detection Timeout 100 ms LIMITER Attack Time 1 ms Release Time Constant THDT1 = 0 1.4 s THDT1 = 1 2.8 |
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