cyclone II开发板原理图8 7 6 5 4 3 2 1 NOTES: 1. Project Drawing Numbers: Raw PCB Gerber Files PCB Design Files Assembly Drawing Fab Drawing Schematic Drawing PCB Film Bill of Materials Schematic Design Files Functional Specification PCB Layout Guidelines Assembly Rework 100-0310202-B1 110-0310202-B1 120-0310202-B1 130-0310202-B1 140-0310202-B1 150-0310202-B1 160-0310202-B1 170-0310202-B1 180-0310202-B1 210-0310202-B1 220-0310202-B1 320-0310202-B1 REV A B DATE 01/26/2005 02/17/2005 PAGES --------- DESCRIPTION Released for Protoype Production Fixed clock buffer U27 pinout. Fixed SSRAM U22 pinout to remove rework. Fixed EVM_CE2/CE3 short on TI EVM Interface. Fixed VTT Regulator U8 decoupling by adding ceramic output caps. E E 2. 894 Parts, 63 Library Parts, 874 Nets, 4299 Pins System Block Diagram ……