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9FG830AFILF Datasheet(PDF) 3 Page - Integrated Device Technology |
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9FG830AFILF Datasheet(HTML) 3 Page - Integrated Device Technology |
3 / 19 page IDT® Eight Output Differential Frequency Generator for PCIe Gen3 and QPI 1680C—08/26/10 9FG830 Eight Output Differential Frequency Generator for PCIe Gen3 and QPI 3 Pin Description PIN # PIN NAME PIN TYPE DESCRIPTION 1 XIN/CLKIN IN Crystal input or Reference Clock input 2 X2 OUT Crystal output, Nominally 14.318MHz 3 VDD PWR Power supply, nominal 3.3V 4 GND PWR Ground pin. 5 REFOUT OUT Reference Clock output 6 vFS2 IN Frequency select pin. This pin has an internal 120k pull down resistor 7 vOE_7 IN Active high input for enabling output 7. This pin has a 120kohm pull down. 0 =disable outputs, 1= enable outputs 8 DIF_7 OUT 0.7V differential true clock output 9 DIF_7# OUT 0.7V differential Complementary clock output 10 VDD PWR Power supply, nominal 3.3V 11 DIF_6 OUT 0.7V differential true clock output 12 DIF_6# OUT 0.7V differential Complementary clock output 13 ^OE_6 IN Active high input for enabling output 6. This pin has an internal 120kohm pull up. 0 = disable outputs, 1= enable outputs 14 VDD PWR Power supply, nominal 3.3V 15 GND PWR Ground pin. 16 ^OE_5 IN Active high input for enabling output 5. This pin has an internal 120kohm pull up. 0 = disable outputs, 1= enable outputs 17 DIF_5 OUT 0.7V differential true clock output 18 DIF_5# OUT 0.7V differential Complementary clock output 19 VDD PWR Power supply, nominal 3.3V 20 DIF_4 OUT 0.7V differential true clock output 21 DIF_4# OUT 0.7V differential Complementary clock output 22 vOE_4 IN Active high input for enabling output 4. This pin as an internal 120kohm pull down. 0 =disable outputs, 1= enable outputs 23 SDATA I/O Data pin for SMBus circuitry, 5V tolerant. 24 SCLK IN Clock pin of SMBus circuitry, 5V tolerant. 25 DIF_STOP# IN Active low input to stop differential output clocks. 26 vSPREAD IN Asynchronous, active high input to enable spread spectrum functionality. This pin has a 120Kohm pull down resistor. 27 ^SEL14M_25M# IN Select 14.31818 MHz or 25 Mhz input frequency. This pin has an internal 120kohm pull up resistor. 1 = 14.31818 MHz, 0 = 25 MHz 28 vOE_3 IN Active high input for enabling output 3. This pin has an internal 120kohm pull down resistor. 0 =disable outputs, 1= enable outputs 29 DIF_3# OUT 0.7V differential Complementary clock output 30 DIF_3 OUT 0.7V differential true clock output |
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