Altera DSP Development Kit, Stratix V Edition Instrukcja Użytkownika Pobierz pdf (Strona 65)

Chapter 2: Board Components 2–57

Power Supply

July 2012 Altera Corporation DSP Development Kit, Stratix V Edition

Reference Manual

Table 2–57 lists the flash memory component reference and manufacturing

information.

Power Supply

The development board’s power is provided through a laptop style DC power input

or through the PCI Express edge connector. The DC voltage is stepped down to the

various power rails used by the components on the board and installed into the

HSMC connectors.

An on-board multi-channel analog-to-digital converter (ADC) measures both the

voltage and current for several specific board rails. The power utilization is displayed

in a GUI that graphs power consumption versus time.

Table 2–58 lists the maximum allowed draws of the power input.

Power Distribution System

The power tree minimizes power board space for PCI Express board requirements

and gives the maximum power under 5.5 A for a 12 V PCI Express input and 3.0 A for

a 3.3 V PCI Express rail. The switching regulators are assumed to have 85% of

efficiency. Regulator inefficiencies and sharing are reflected in the currents shown,

which are conservative absolute maximum levels.

U11.F7

FLASH_RDYBSYn1

1.8-V AN7 Ready

FLASH_RESETn

1.8-V AJ6 Reset

FLASH_WEn

1.8-V AN8 Write enable

FLASH_WPn

— — Write protect

Table 2–56. Flash Pin Assignments, Schematic Signal Names, and Functions (Part 3 of 3)

Board

Reference

(U10, U11)

Schematic Signal

Name

I/O Standard

Stratix V GS Device

Pin Number

Description

Table 2–57. Flash Memory Component Reference and Manufacturing Information

Board Reference Description Manufacturer

Manufacturing

Part Number

Manufacturer

Website

U10, U11 512-Mbit synchronous flash Numonyx PC28F512P30BF www.numonyx.com

Table 2–58. Power Input Maximum Allowed Draws

Source Voltage (V) Current (A) Maximum Voltage (V)

25 W PCI Express edge connector

3.3 — —

12.0 — —

75 W PCI Express edge connector

3.3 3.00 9.0

12.0 5.50 66.0

Laptop Supply—DC input 19.0 6.30 120.0

1 2 ... 60 61 62 63 64 65 66 67 68 69 70 ... 73 74

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