Altera Transceiver Signal Integrity Development Kit, Stra Bedienungsanleitung PDF herunterladen (Seite 31)

Chapter 2: Board Components 2–23

Transceiver Channels

May 2014 Altera Corporation Transceiver Signal Integrity Development Kit

Stratix V GT Edition Reference Manual

Embedded USB-Blaster Clocks

A separate 6-MHz crystal and 24-MHz oscillator are dedicated for the embedded

USB-Blaster circuitry. The 6-MHz oscillator is to clock the FTDI FT245 USB PHY

device while the 24-MHz oscillator is to clock the MAX II CPLD device. Refer to

“FPGA Programming over Embedded USB-Blaster” on page 2–14 for the embedded

USB-Blaster implementation.

Table 2–16 lists the crystal oscillators component references and manufacturing

information.

Transceiver Channels

The transceiver signal integrity development board dedicates 31 (out of 32) 12.5-Gbps

transceiver channels from both the left and right sides of the device to various

backplane connectors—SFP+ and XFP cages, and SMA connectors. One 12.5-Gbps

channel on the 28 Gbps side of the device is a dedicated CMU clock input from the

SMA connectors. For the Stratix V GT device, the four 28-Gbps ATT channels connects

to the MMPX connectors.

Table 2–16. Crystal Oscillator Component References and Manufacturing Information

Board

Reference

Description Manufacturer

Manufacturer

Part Number

Manufacturer Website

X1 Crystal oscillator, 6.0 MHz, SMD ESC Inc. ECSX-60-32-5P-TR www.ecsxtal.com

Crystal oscillator, CMOS, 2.5 V,

24.000 MHz, SMT, ±50ppm

Epson

SG-310SDF 24.0000M-

www.epsontoyocom.co.jp/

english/index.html

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 51 52

Keine Kommentare

Altera Transceiver Signal Integrity Development Kit, Stra Bedienungsanleitung Seite 31