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STK5820 Datasheet These bits control the analog switching, selecting between the FM, external, and NICAM signals. With the NICAM source the signals select whether the de-emphasis is performed and what gain is applied after the filtering and de-emphasis stage. The signal states and their meanIng are listed in Table 4. Power-on resets t0 0/1/0. STK5820 Price . Operating voltage: 2.4V~5.2V. . Built-in 256kHz RC oscillator. . External 32.768kHz crystal or 256kHz frequency source input. . Selection of l/2 0r 1/3 bias, and selection of l/2 0r 1/3 0r 1/4 duty LCD applications . Internal time base frequency sources. . Two selectable buzzer frequencies (2kHz/4kHz). . Built-in time base generator and WDT. . Time base or WDT overflow output. . Power down command reduces power Consumption . 8 kinds oftime base/WDT clock sources. . 32x4 LCD driver. . Built-in 32x4 bit display RAM. . 3-wire serial interface. STK5820 on stock
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