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          SGM89112

          Capless 3Vrms Line Driver with 8MHz 5th-Order Video Driver
           
          Capless 3Vrms Line Driver with 8MHz 5th-Order Video Driver
          GENERAL DESCRIPTION

          The SGM89112 is a 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 SGM89112 also has a single rail-to-rail 5th-order video filter with a -3dB bandwidth of 8MHz and a slew rate of 33V/μs. It operates from 3.0V to 5.5V power supply. The device is ideal for single supply electronics where size and cost are critical design parameters.

          The SGM89112 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 SGM89112 has build-in shutdown control for pop/click-free on/off control. The SGM89112’s video driver employs an internal level shift circuit that avoids sync-pulse clipping and allows DC-coupled output.

          Using the SGM89112 in audio products can reduce component count compared to traditional methods of generating a 3Vrms output. The SGM89112 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 SGM89112 integrates a charge pump to generate a negative supply rail that provides a clean, pop/click-free ground-biased 3Vrms output.

          The SGM89112 is available in a Green TSSOP-16 package. It operates over an ambient temperature range of -40 to +85.

          PIN CONFIGURATIONS

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          FEATURES
          • Capless Audio Driver Structure

             Eliminates Pop/Clicks

             Eliminates Output DC-Blocking Capacitors

             Provides Flat Frequency Response from DC to 20kHz

          • Low Noise and THD

             Typical SNR = 107dB

             Typical VN = 9μVrms

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

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

          • Support Single Audio Signal Input

          • Excellent SD Video Performance

          • 5th-Order Video Filter

          • 6dB Gain Video Driver

          • Video Driver can Drive Two Video Loads

          • Input Voltage Range Includes Ground

          • Operates from 3.0V to 5.5V Single Power Supply

          • Available in a Green TSSOP-16 Package

          APPLICATIONS

          Set-Top Box

          Communication Devices

          LCD TV

          Blu-Ray DVD-Players

          Home Theater in a Box

          ORDERING INFORMATION
          Part NumberStatusPackagePinsPb-FreeTemp Range
          SGM89112YTS16G/TRProductionTSSOP-1616Y-40℃ to +85℃

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