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MAX9718BEUB Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX9718BEUB Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 23 page Low-Cost, Mono/Stereo, 1.4W Differential Audio Power Amplifiers _______________________________________________________________________________________ 3 ELECTRICAL CHARACTERISTICS—5V Supply (continued) (VCC = 5V, GND = 0, SHDN/SHDN = VCC (MAX9718/MAX9719), SHDM = GND (MAX9718), RIN = RF = 10k Ω (MAX971_A), TA = +25°C. CBIAS = 0.1µF, no load. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1) ELECTRICAL CHARACTERISTICS—3V Supply (VCC = 3V, GND = 0, SHDN/SHDN = VCC (MAX9718/MAX9719), SHDM = GND (MAX9718), RIN = RF = 10k Ω (MAX971_A), TA = +25°C. CBIAS = 0.1µF, no load. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Gain Accuracy MAX971_B/MAX971_C/MAX971_D ±1 % Channel-to-Channel Gain Matching MAX9719B/MAX9719C/MAX9719D ±1 % Signal-to-Noise Ratio SNR POUT = 1W, RL = 8 Ω -104 dB Thermal-Shutdown Threshold +160 °C Thermal-Shutdown Hysteresis 15 °C Maximum Capacitive Drive CLOAD Bridge-tied capacitance 500 pF Power-Up/Enable from Shutdown Time tPU 10 ms Shutdown Time tSHDN 3.5 µs Turn-Off Transient VPOP (Note 6) 50 mV Crosstalk MAX9719, fIN = 1kHz -85 dB PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Current ICC VIN- = VIN+ = VBIAS, TA = -40°C to +85°C, per amplifier (Note 2) 3.8 6.0 mA Shutdown Supply Current ISHDN SHDN = SHDM = SHDN = GND, per amplifier 0.1 1 µA VIH 0.7 x VCC SHDN, SHDN, SHDM Threshold VIL 0.3 x VCC V Common-Mode Bias Voltage VBIAS (Note 3) VCC/2 - 5% VCC/2 VCC/2 + 5% V AV = 0dB, MAX971_A/ MAX971_B ±1 ±10 AV = 3dB, MAX971_C ±1 ±15 Output Offset Voltage VOS VIN- = VIN+ = VBIAS AV = 6dB, MAX971_D ±1 ±20 mV AV = 0dB, MAX971_B 0.5 VCC - 0.7 AV = 3dB, MAX971_C 0.5 VCC - 0.8 Inferred from CMRR test AV = 6dB, MAX971_D 0.5 VCC - 1.0 Common-Mode Input Voltage VIC External gain, MAX971_A 0.5 VCC - 1.2 V Input Impedance RIN MAX971_B/MAX971_C/MAX971_D 10 15 20 k Ω -50 -60 Common-Mode Rejection Ratio CMRR fN = 1kHz -70 dB f = 217Hz -93 Power-Supply Rejection Ratio PSRR VIN- = VIN+ = VBIAS, VRIPPLE = 200mVP-P, RL = 8 Ω, CBIAS = 1µF f = 1kHz -90 dB |
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