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XRT91L34IV-F Datasheet(PDF) 10 Page - Exar Corporation |
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XRT91L34IV-F Datasheet(HTML) 10 Page - Exar Corporation |
10 / 38 page XRT91L34 10 QUAD CHANNEL MULTIRATE STS-12/3/1 AND STM-4/1/0 SONET/SDH CDR REV. 1.0.1 POWER AND GROUND NAME TYPE PIN DESCRIPTION AVDD1.8 PWR 42, 57, 58, 104, 105, 123 1.8V Analog Core Power Supply AVDD1.8 should be isolated from DVDD1.8 and 3.3V VDD_IO power supplies. For best results, use a ferrite bead along with an internal power plane separation. The AVDD1.8 power supply pins should have bypass capacitors to the nearest ground. DVDD1.8 PWR 51, 112 1.8V Digital Core Power Supply DVDD1.8 should be isolated from AVDD1.8 and 3.3V VDD_IO power supplies. For best results, use an internal power plane separation. The DVDD1.8 power supply pins should have bypass capacitors to the nearest ground. VDD_IO PWR 5, 6, 13, 14, 19, 20, 27, 28, 65, 66, 73, 74, 87, 88, 95, 96 3.3V Input/Output Bus Power Supply These pins require a 3.3V potential voltage for properly biasing the Differential LVDS/Differential LVPECL and LVCMOS/LVTTL input and output pins. VDD_IO should be isolated from the AVDD1.8 and DVDD1.8 Core power supplies. For best results, use a ferrite bead along with an internal power plane separation. The VDD_IO power sup- ply pins should have bypass capacitors to the nearest ground. GND_IO GND 7, 8, 15, 16, 17, 18, 25, 26, 69, 70, 77, 78, 83, 84, 91, 92 Ground for 3.3V VDD Input/Output Power Supplies It is recommended that all ground pins of this device be tied together. GND GND 43, 52, 61, 62, 100, 101, 110, 111, 121 Power Supply and Thermal Ground It is recommended that all ground pins of this device be tied together. NC 1, 2, 9, 10, 23, 24, 31, 32, 97, 128 No Connect |
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