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ICS9DB108 Fiches technique(PDF) 3 Page - Integrated Circuit Systems |
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ICS9DB108 Fiches technique(HTML) 3 Page - Integrated Circuit Systems |
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3 / 15 page ![]() 3 Integrated Circuit Systems, Inc. ICS9DB108 0723D—01/08/04 Pin Description (Continued) PIN # PIN NAME PIN TYPE DESCRIPTION 25 GND PWR Ground pin. 26 PD# IN Asynchronous active low input pin used to power down the device. The internal clocks are disabled and the VCO and the crystal are stopped. 27 SRC_STOP# IN Active low input to stop diff outputs. 28 HIGH_BW# PWR 3.3V input for selecting PLL Band Width 0 = High, 1= Low 29 DIF_4# OUT 0.7V differential complement clock outputs 30 DIF_4 OUT 0.7V differential true clock outputs 31 VDD PWR Power supply, nominal 3.3V 32 GND PWR Ground pin. 33 DIF_5# OUT 0.7V differential complement clock outputs 34 DIF_5 OUT 0.7V differential true clock outputs 35 OE_5 IN Active high input for enabling outputs. 0 = tri-state outputs, 1= enable outputs 36 OE_6 IN Active high input for enabling outputs. 0 = tri-state outputs, 1= enable outputs 37 DIF_6# OUT 0.7V differential complement clock outputs 38 DIF_6 OUT 0.7V differential true clock outputs 39 VDD PWR Power supply, nominal 3.3V 40 GND PWR Ground pin. 41 DIF_7# OUT 0.7V differential complement clock outputs 42 DIF_7 OUT 0.7V differential true clock outputs 43 OE_4 IN Active high input for enabling outputs. 0 = tri-state outputs, 1= enable outputs 44 OE_7 IN Active high input for enabling outputs. 0 = tri-state outputs, 1= enable outputs 45 LOCK OUT 3.3V output indicating PLL Lock Status. This pin goes high when lock is achieved. 46 IREF IN This pin establishes the reference current for the differential current-mode output pairs. This pin requires a fixed precision resistor tied to ground in order to establish the appropriate current. 475 ohms is the standard value. 47 GNDA PWR Ground pin for the PLL core. 48 VDDA PWR 3.3V power for the PLL core. |
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