PCI-BOARD/S25 Altera, PCI-BOARD/S25 Datasheet - Page 16

• Manufacturer Part Number: PCI-BOARD/S25
• Manufacturer: Altera

Specifications of PCI-BOARD/S25

• Lead Free Status / Rohs Status: Supplier Unconfirmed

Stratix PCI Development Board Data Sheet
16
Figure 3. 2.5-V Regulator
+1.5-V Regulator
Linear regulator U7 generates +1.5 V for the Stratix device from +3.3 V.
+1.25-V Regulator
Linear regulator U12 generates +1.25 V for DDR SDRAM memory
termination and reference voltage.
External Power Adaptor Receptacle
J18 is a receptacle for power from a standard PC ATX power supply via
the external power adapter cable. The board settings dip switch bank (S1)
enables the external power supply, as shown in
Table 11. External Power Supply Enable
Bank (S1) Position 1 (PWR)
Board Settings Dip Switch
Off
On
+3.3 V
R13
R15
Disable external power supply.
Enable external power supply.
Amplifier
U9
Voltage Regulator
Voltage Regulator
V
V
V
IN
IN
REF
U4
U5
Description
V
V
OUT
OUT
Table
11.
Altera Corporation
+2.5 V