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                  帕智電子(上海)有限公司

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                  SGM89111

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

                  The SGM89111 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 SGM89111 also has a single rail-to-rail 5th-order video filter with a -3dB bandwidth of 8MHz and a slew rate of 35V/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 SGM89111 is capable of driving 3Vrms into a 2.5kΩ load with 5V 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 SGM89111 has build-in shutdown control for pop/click-free on/off control. The SGM89111’s video driver employs an internal level shift circuit that avoids sync-pulse clipping and allows DC-coupled output.

                  Using the SGM89111 in audio products can reduce component count compared to traditional methods of generating a 3Vrms output. The SGM89111 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 SGM89111 integrates a charge pump to generate a negative supply rail that provides a clean, pop/click-free ground-biased 3Vrms output.

                  The SGM89111 is available in a Green TSSOP-20 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 Differential 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-20 Package

                  APPLICATIONS

                  Set-Top Box
                  Communication Devices
                  LCD TV
                  Blu-Ray DVD-Players
                  Home Theater in a Box

                  ORDERING INFORMATION
                  Part NumberStatusPackagePinsPb-FreeTemp Range
                  SGM89111YTS20G/TRProductionTSSOP-2020Y-40℃ to +85℃

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