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ICS91719 Datasheet(PDF) 2 Page - Integrated Circuit Systems |
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ICS91719 Datasheet(HTML) 2 Page - Integrated Circuit Systems |
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2 / 10 page ![]() 2 ICS91719 0506D—08/16/04 Pin Descriptions PIN # PIN NAME PIN TYPE DESCRIPTION 1 GND PWR Ground pin for 3V outputs 2 X1 _CLKIN IN Crystal input or CLOCKIN input 3 X2 OUT Crystal output 4 GNDA PWR Analog ground 5 VDDA PWR Analog power supply for 3V 6 VDD PWR Power supply for 3V 7 GND PWR Ground pin for 3V outputs CLKOUT OUT Modulated clock output FS_IN0 IN Latched input for input frequency select Spread enable pin Latched input for input frequency select 10 SDATA IN Data pin for I2C circuitry 5V tolerant 11 SCLK IN Clock pin for I2C circuitry 5V tolerant 12 ^PD# IN Power down 13 **REF_Stop IN Stop control for REF_CLOCK output STOP:1, RUNNING:0 14 REF_OUT/VDDREF_SEL_1.8V * * IN/OUT REF_CLOCK output 15 VDDREF_SEL_2.5V/3.3V# ^ PWR REF_CLOCK power supply voltage select 16 VDDREF PWR Power supply for REF_CLOCK ^internal pull-up **internal pull-down 8 9 ^SPREAD_ENABLE FS_IN1 IN |
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