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          SGM8904

          Capless 2Vrms to 3Vrms Line Driver with Adjustable Gain
           
          Capless 2Vrms to 3Vrms Line Driver with Adjustable Gain
          GENERAL DESCRIPTION

          The SGM8904 is a 2Vrms to 3Vrms 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 SGM8904 is capable of driving 3Vrms into a 2.5kΩ load with 5V supply voltage. The device has single input 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 SGM8904 has build-in shutdown control for pop/click-free on/off control.

          Using the SGM8904 in audio products can reduce component count compared to traditional methods of generating a 3Vrms output. The SGM8904 doesn't require a power supply greater than 5V to generate an 8.5VPP output, nor does the device require a split rail power supply. The SGM8904 integrates a charge pump to generate a negative supply rail that provides a clean, pop/click-free ground-biased 3Vrms output.

          The SGM8904 is available in a Green MSOP-10 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 = 5.4μVrms

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

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

          • 3Vrms Output Voltage into 2.5kΩ Load with 5V Supply Voltage

          • -40 to +85 Operating Temperature Range

          • Available in a Green MSOP-10 Package

          APPLICATIONS

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

          ORDERING INFORMATION
          Part NumberStatusPackagePinsPb-FreeTemp Range
          SGM8904YMS10G/TRProductionMSOP-1010Y-40℃ to +85℃

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