# # FAN_1V8 Supply # # DCDC 7 Converter Nets # ------------------------- # # # Original Rev. 27-Mar-2015 # Current Rev. 2-Dec-2016 # # # # This file holds all of the nets for DCDC Converter 7. # # This is the FAN_1V8 supply 1.800 V at 20 Amps. # # This Hub Module supply uses a GE_UDT020 converter. # # This converter powers the MGT Fanout circuits. # # # Connect the converter's V_Input, V_Output, and Ground terminals: # NET 'ISO_12V' DCDC7-2 NET 'GROUND' DCDC7-4 NET 'FAN_1V8_pre_L' DCDC7-6 # # Connect this converter's INPUT Via Arays: # NET 'ISO_12V' PVA1_DC7-1 PVA1_DC7-2 PVA1_DC7-3 PVA1_DC7-4 NET 'ISO_12V' PVA1_DC7-5 PVA1_DC7-6 NET 'ISO_12V' PVA2_DC7-1 PVA2_DC7-2 PVA2_DC7-3 PVA2_DC7-4 # # Connect this converter's GROUND and Sync = Ground Via Arays: # NET 'GROUND' PVA3_DC7-1 PVA3_DC7-2 PVA3_DC7-3 PVA3_DC7-4 NET 'GROUND' PVA4_DC7-1 PVA4_DC7-2 PVA4_DC7-3 PVA4_DC7-4 NET 'GROUND' PVA4_DC7-5 PVA4_DC7-6 PVA4_DC7-7 PVA4_DC7-8 NET 'GROUND' PVA4_DC7-9 PVA4_DC7-10 PVA4_DC7-11 PVA4_DC7-12 NET 'GROUND' PVA5_DC7-1 NET 'GROUND' PVA6_DC7-1 NET 'GROUND' PVA7_DC7-1 # # Connect this converter's OUTPUT Via Arays: # NET 'FAN_1V8_pre_L' PVA8_DC7-1 PVA8_DC7-2 PVA8_DC7-3 PVA8_DC7-4 NET 'FAN_1V8_pre_L' PVA8_DC7-5 PVA8_DC7-6 PVA8_DC7-7 PVA8_DC7-8 NET 'FAN_1V8_pre_L' PVA8_DC7-9 PVA8_DC7-10 PVA8_DC7-11 PVA8_DC7-12 NET 'FAN_1V8_pre_L' PVA9_DC7-1 NET 'FAN_1V8_pre_L' PVA10_DC7-1 NET 'FAN_1V8_pre_L' PVA11_DC7-1 # # Connect this converter's INPUT Filter: # NET 'ISO_12V' C1311-1 C1312-1 C1313-1 C1314-1 NET 'GROUND' C1311-2 C1312-2 C1313-2 C1314-2 NET 'ISO_12V' C1315-1 C1316-1 NET 'GROUND' C1315-2 C1316-2 # # Connect this converter's OUTPUT Filter # and connect the Output Filter Choke: # NET 'FAN_1V8_pre_L' C1321-1 C1322-1 C1323-1 C1324-1 C1328-1 NET 'GROUND' C1321-2 C1322-2 C1323-2 C1324-2 C1328-2 NET 'FAN_1V8_pre_L' C1325-1 C1326-1 NET 'GROUND' C1325-2 C1326-2 NET 'FAN_1V8_pre_L' C1327-1 NET 'GROUND' C1327-2 NET 'FAN_1V8_pre_L' L1301-1 NET 'FAN_1V8' L1301-2 NET 'FAN_1V8' DZ1301-1 NET 'GROUND' DZ1301-2 # # Ground this converter's unused SYNC terminal: # NET 'GROUND' DCDC7-10 # # Connect the ON_OFF and POWER_GOOD terminals: # # Recall: The ON_OFF pin is Low active, i.e. voltage low --> ON. # The POWER_GOOD is a common open drain signal # NET 'DCDC_7_OFF_ON' DCDC7-1 NET 'DCDC_7_POWER_GOOD' DCDC7-9 # # Connect the RAMP_SEQUENCE terminal: # # Recall: # # The output voltage tracks the scaled Vseq up to set point. # R1105 is the 20k Ohm series resistor. # R1106 is the scale shunt resistor to ground. NET 'CONVERTER_RAMP' R1305-2 NET 'DCDC7_RAMP_SEQUENCE' R1305-1 R1306-2 C1302-2 DCDC7-3 NET 'DCDC7_SIG_GND' R1306-1 C1302-1 # # Connect this converter's Output Voltage Control resistor # between the TRIM and SIG_GND terminals: # NET 'DCDC7_TRIM' DCDC7-5 R1302-2 NET 'DCDC7_SIG_GND' DCDC7-14 R1302-1 # # Connect this conberter's Feedback Source Point # Select Jumpers to the two possible feedback # source points. # NET 'FAN_1V8_pre_L' JMP1301-2 JMP1303-1 NET 'FAN_1V8' JMP1302-2 JMP1304-1 # Connect this converter's Differential Amp # Remote Sense input terminals V_SENSE_PLUS # and V_SENSE_MINUS: # NET 'DCDC7_DIFF_FDBK' DCDC7-7 JMP1301-1 JMP1302-1 NET 'GROUND' DCDC7-8 # # Connect this converter's Servo Loop RC components # between the Feedback Source Point Select Jumpers # and its TRIM terminal: # NET 'DCDC7_RC_FDBK' C1301-2 JMP1303-2 JMP1304-2 NET 'DCDC7_LOOP_RC' C1301-1 R1301-1 NET 'DCDC7_TRIM' R1301-2 # # Connect this converter's direct capacitor feedback # from before the LC filter to its "Trim" input. # NET 'FAN_1V8_pre_L' C1303-1 NET 'DCDC7_TRIM' C1303-2 # # Connect the PMBus to this converter and set its address # using the PMBUS_CLK, PMBUS_DATA, SMB_ALERT, ADRS0 # and ADRS1 terminals: # NET 'Hub_PMBus_SCL' DCDC7-11 NET 'Hub_PMBus_SDA' DCDC7-12 NET 'Hubs_SMB_Alert_B' DCDC7-13 NET 'DCDC7_ADRS_0' DCDC7-16 R1303-1 NET 'DCDC7_ADRS_1' DCDC7-15 R1304-1 NET 'DCDC7_SIG_GND' R1303-2 R1304-2 # # Connections to the PVAs Added during routing: # NET 'FAN_1V8_Pre_L' PVA12_DC7-1 PVA12_DC7-2 PVA12_DC7-3 NET 'FAN_1V8_Pre_L' PVA12_DC7-4 PVA12_DC7-5 PVA12_DC7-6 NET 'FAN_1V8_Pre_L' PVA13_DC7-1 PVA13_DC7-2 PVA13_DC7-3 NET 'FAN_1V8' PVA14_DC7-1 PVA14_DC7-2 PVA14_DC7-3 NET 'FAN_1V8' PVA14_DC7-4 PVA14_DC7-5 PVA14_DC7-6 NET 'FAN_1V8' PVA15_DC7-1 PVA15_DC7-2 PVA15_DC7-3 NET 'FAN_1V8' PVA15_DC7-4 PVA15_DC7-5 PVA15_DC7-6 NET 'FAN_1V8' PVA16_DC7-1 PVA16_DC7-2 PVA16_DC7-3 PVA16_DC7-4 NET 'FAN_1V8' PVA17_DC7-1 PVA17_DC7-2 PVA17_DC7-3 PVA17_DC7-4 NET 'FAN_1V8' PVA18_DC7-1 PVA18_DC7-2 PVA18_DC7-3 NET 'GROUND' PVA19_DC7-1 PVA19_DC7-2 PVA19_DC7-3 NET 'GROUND' PVA20_DC7-1 PVA20_DC7-2 PVA20_DC7-3 NET 'ISO_12V' PVA21_DC7-1