Altera Stratix II GX EP2SGX90 Transceiver Signal Integrit Manual de usuario descargar pdf (Pagina 36)

2–26 Reference Manual Altera Corporation

Stratix II GX EP2SGX90 Transceiver Signal Integrity Development Board May 2006

Power Supply

Figure 2–16 shows the board’s power supply block.

Figure 2–16. Power Supply Block Diagram

The decoupling analysis for this board is performed for a maximum

current consumption by the different power supplies, see Table 2–20.

Wall AC/DC

Power Supply

5-V to 1.2-V

Switches

5-V to 3.3-V

Switches

5-V to 3.3-V

Linear

5-V Parts

16-V to 5-V

Switches

VCCINT

VCCIO

and IC

3.3-V to

1.5-V Linear

3.3-V to

1.2-V Linear

GXB

and EPLL

Clock

and GXB

VCCHTX

Table 2–20. Power Supply Pins & Maximum Current Consumption

Power Supply

Net Name in

Schematic

Power Supply Pins Connected in

Stratix II GX Device

Maximum Expected

Current Consumption

1V2 VCCINT and VCCP 4.75 A

VCCTX VCCH 290 mA

1V2A VCCR and VCCT 1.70 A

3V3 VCCIO and external components 2.45 A

3V3A VCCA and external components 1.04 A

1 2 ... 31 32 33 34 35 36 37 38 39 40

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Altera Stratix II GX EP2SGX90 Transceiver Signal Integrit Manual de usuario Pagina 36

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