CIRCUIT DESIGN

Component list on the motherboard:

S. No	Component	Qty./crd.	Description
1	96 pin Euro connector male wire-wrap type	1	For input and for backplane connection
2	26 pin FRC connector male	4	For Output
3	MC10125 Dip-16	11	ECL-TTL converter
4	MC10124 Dip-16	6	TTL ECL converter
5	74F574 Dip-20	4	Latches
6	7C245A Dip-24	4	Lookup PROMS
7	Power Connector 4 pin male	1	For power connection
8	96 pin EURO connector female (solder type)	2	MB to DB connection

Component List for Daughter Board:

S. No	Component	Qty./crd.	Description
1	96 pin Euro connector? male (solder type)	2	MB to DB connection
2	FPGA, 6024ABC256-3 256 pin BGA	2	Main FPGAs
3	IDT 71256L20Y Small outline (J-Bend) Rams	4	For Delay and re-circulation
4	74LS123D SOIC-16	1	For reset
5	32MHz Oscillator on Dip-14	1	For test purposes
6	MC33269 D (SOP 8)	2	5 V to 3.3 V regulator
7	EPC 1441 Dip-8	2	Configuration EPROM
8	26LS31 D (SO-16)	6	TTL to TTL- differential converter for bus communication
9	26LS32 D (SO-16)	6	TTL- differential to TTL converter for bus communication
10	50 pin FRC connector (male type)	1	For bus communication
11	Reset Switch push button	1	For reset of card
12		De-coupling capacitors	One per chip and for power
13	Delay lines on Dip-8	2	For clk32, init and clk3225
14	MC10125FN (PLCC)	2	For 32.25MHz clock and init.

Components on Backplane:

S. No	Component	Qty./crd.	Description
1	96 pin Euro connector (female type)	5	For input and for backplane connection to the cards.
2	26LS31 (16 pin DIP)	24	12 for cards on same backplane and 12 for carrying bus signals to next backplane.
3	26LS32 (16 pin DIP)	24	12 for cards on same backplane and 12 for carrying bus signals to next backplane.
4	EPLD 5032	2	For bus control and card reset.
5	50 pin FRC male	7	For bus communication. 1 for connection to PC and 1for connecting to other backplane and 1 for input to each card.

Citcuit Diagrams:

IMAGE GALLARY
GOBACK TO Delay-DPC SUBSYSTEM
GOTO DIGITAL BACKEND