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          SGM89000

          Capless 2Vrms Line Driver with Adjustable Gain
           
          Capless 2Vrms Line Driver with Adjustable Gain
          GENERAL DESCRIPTION

          The SGM89000 is a 2Vrms pop/click-free stereo line driver designed to allow the removal of the output DC-blocking capacitors for reduced component count and cost. The device is ideal for single supply electronics where size and cost are critical design parameters.

          The SGM89000 is capable of driving 2Vrms into a 2.5kΩ load with 3.3V supply voltage. The device has differential inputs and uses external gain setting resistors that supports a gain range of ±1V/V to ±10V/V. The use of external gain resistors also allows the implementation of a 2nd-order low pass filter to compliment DAC's and SOC converters. The SGM89000 has build-in shutdown control for pop/click-free on/off control.

          Using the SGM89000 in audio products can reduce component count compared to traditional methods of generating a 2Vrms output. The SGM89000 doesn't require a power supply greater than 3.3V to generate a 5.6VPP output, nor does the device require a split rail power supply. The SGM89000 integrates a charge pump to generate a negative supply rail that provides a clean, pop/click-free ground-biased 2Vrms output.

          The SGM89000 is available in a Green TSSOP-14 package. It operates over an ambient temperature range of -40 to +85.

          PIN CONFIGURATIONS

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          FEATURES
          • Capless Structure

             Eliminates Pop/Clicks

             Eliminates Output DC-Blocking Capacitors

             Provides Flat Frequency Response from DC to 20kHz

          • Low Noise and THD

             Typical SNR = 114dB

             Typical VN = 5.5μVrms

             Typical THD+N = 0.001% (f = 1kHz)

          • 2Vrms Output Voltage into 2.5kΩ Load with 3.3V Supply Voltage

          • Differential Input

          • -40 to +85 Operating Temperature Range

          • Available in a Green TSSOP-14 Package

          APPLICATIONS

          Set-Top Box
          LCD TV
          Blue-Ray DVD-Players
          Home Theater in a Box

          ORDERING INFORMATION

          Part NumberStatusPackagePinsPb-FreeTemp Range
          SGM89000YTS14G/TRProductionTSSOP-1414Y-40℃ to +85℃

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