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MAX9725CETC Datasheet(PDF) 2 Page - Maxim Integrated Products |
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MAX9725CETC Datasheet(HTML) 2 Page - Maxim Integrated Products |
2 / 14 page 1V, Low-Power, DirectDrive, Stereo Headphone Amplifier with Shutdown 2 _______________________________________________________________________________________ ABSOLUTE MAXIMUM RATINGS Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. SGND to PGND .....................................................-0.3V to +0.3V VDD to SGND or PGND ............................................-0.3V to +2V VSS to PVSS ...........................................................-0.3V to +0.3V C1P to PGND..............................................-0.3V to (VDD + 0.3V) C1N to PGND............................................(PVSS - 0.3V) to +0.3V VSS, PVSS to GND ....................................................+0.3V to -2V OUTR, OUTL, INR, INL to SGND .....(VSS - 0.3V) to (VDD + 0.3V) SHDN to SGND or PGND .........................................-0.3V to +4V Output Short-Circuit Current ......................................Continuous Continuous Power Dissipation (TA = +70 °C) 12-Bump UCSP (derate 6.5mW/ °C above +70°C)....518.8mW 12-Pin Thin QFN (derate 16.9mW/ °C above +70°C) ..1349.1mW Junction Temperature ......................................................+150 °C Operating Temperature Range ...........................-40 °C to +85°C Storage Temperature Range .............................-65 °C to +150°C Bump Temperature (soldering) Reflow............................+230 °C Lead Temperature (soldering, 10s) .................................+300 °C ELECTRICAL CHARACTERISTICS (VDD = 1.5V, PGND = SGND = 0V, VSHDN = 1.5V, VSS = PVSS, C1 = C2 = 1µF, CIN = 1µF, RL = ∞, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25 °C.) (See the Functional Diagram.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage Range VDD Guaranteed by PSRR test 0.9 1.8 V Quiescent Supply Current IDD Both channels active 2.1 3.3 mA TA = +25 °C 0.6 10 Shutdown Current ISHDN VSHDN = 0V TA = -40 °C to +85°C30 µA Shutdown to Full Operation tON 180 µs VIH VDD = 0.9V to 1.8V 0.7 x VDD SHDN Thresholds VIL VDD = 0.9V to 1.8V 0.3 x VDD V SHDN Input Leakage Current ILEAK VDD = 0.9V to 1.8V (Note 1) ±1µA CHARGE PUMP Oscillator Frequency fOSC 493 580 667 kHz AMPLIFIERS MAX9725A -2.04 -2.00 -1.96 MAX9725B -1.53 -1.5 -1.47 MAX9725C -1.02 -1.00 -0.98 Voltage Gain AV MAX9725D -4.08 -4.00 -3.92 V/V Gain Match ∆AV ±0.5 % MAX9725A/MAX9725D ±0.3 ±1.05 MAX9725B ±0.45 ±1.58 Total Output Offset Voltage VOS Input AC-coupled, RL = 32 Ω to GND, TA = +25 °C MAX9725C ±0.6 ±2.1 mV Input Resistance RIN 15 25 35 k Ω VDD = 0.9V to 1.8V, TA = +25 °C60 80 fIN = 1kHz 70 Power-Supply Rejection Ratio PSRR 100mVP-P ripple fIN = 20kHz 62 dB RL = 32 Ω 10 20 VDD = 1.5V RL = 16 Ω 25 VDD = 1.0V, RL = 32 Ω 7 Output Power (Note 2) POUT VDD = 0.9V, RL = 32 Ω 6 mW RL = 32 Ω, POUT = 12mW, f = 1kHz 0.006 Total Harmonic Distortion Plus Noise THD+N RL = 16 Ω, POUT = 15mW, f = 1kHz 0.015 % BW = 22Hz to 22kHz 89 Signal-to-Noise Ratio SNR RL = 32 Ω, POUT = 12mW A-weighted filter 92 dB |
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