Altera Stratix II GX EP2SGX90 Transceiver Signal Integrit Manuel d'utilisateur télécharger pdf (Page 37)

Altera Corporation Reference Manual 2–27

May 2006 Stratix II GX EP2SGX90 Transceiver Signal Integrity Development Board

Board Components & Interfaces

Thermal

Management

Block

To ensure that the Stratix II GX device operates in the specified thermal

operating conditions, a thermal management unit is included on the

board. The on-chip temperature sensing diode needs to be monitored by

an external temperature sensor, which is the Maxim MAX1619 device

(U17). Accordingly, a SMBus interface in the PLD fabric of the

Stratix II GX device is required to monitor the thermal data, and

potentially, be an active participant with the active-cooling mechanism.

Figure 2–17 shows the on-board thermal management system diagram.

Figure 2–17. Stratix II GX Thermal Management System

The active-cooling device is similar to the Radian FB35+K52+T725 active

BGA cooler with clip.

f For more information, go to the Radian website at

http://www.radianheatsinks.com/products.html.

Temperature

Sensing

Device

Tempdiodep

Tempdioden

FET

Stratix Device

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Altera Stratix II GX EP2SGX90 Transceiver Signal Integrit Manuel d'utilisateur Page 37