MAX4908ETD+T

MAXIM INTEGRATED PRODUCTS  MAX4908ETD+T  芯片, 模拟多路复用器, 双路, 3:1, TDFN-14

The is a dual 3:1 clickless audio multiplexer with negative-signal handling in 14 pin TDFN package. It allows signals as low as VCC - 5.5V to pass through without distortion. This analogue multiplexer has a low on-resistance 0.38ohm, low supply current and operate from a single supply. It has shunt resistors on all input terminals, shunt resistor feature reduces click-and-pop sounds by automatically discharging capacitance at input terminal when they are not connected. A break before make feature further reduces popping. It use two digital control inputs CB1 and CB2 to switch between signals. The digital control inputs can accept up to +5.5V independent of supply voltage. It is used in cell phones, PDAs and handheld devices, notebook computers and MP3 players.

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Supply voltage range is 1.8V to 5.5V

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Operating temperature range from -40°C to 85°C

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Distortion free negative signal throughput down to VCC - 5.5V

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High PSRR reduces supply noise

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Channel to channel matching of 0.1ohm max

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On-resistance flatness is 0.35ohm max

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Crosstalk of -70dB typ at 20KHz

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Off-isolation of -80dB typ at 20KHz

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Total harmonic distortion is 0.02% typ

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Leakage current is 50nA, supply current is 50nA