Altera Cyclone II DSP Development Board Manuel d'utilisateur télécharger pdf (Page 32)

2–24 Reference Manual Altera Corporation

Cyclone II DSP Development Board August 2006

User Interfaces

Table 2–17 lists the J37 (channel A) and J36 (channel B) jumper settings

used to select the A/D converter clock.

Figure 2–11 shows the J37 and J36 pin-outs listed in Table 2–17. Pins 1 and

2 show an example jumper setting used to select the OSC clock.

Figure 2–11. J37 & J36 Pin Settings

Table 2–17. TI ADS5520 A/D Converter (U28 & U31) Clock Source Settings

Clock Source

Board

Reference

Schematic Signal Name

A/D Converter Clock Select

(J37 or J36) Jumper Setting

OSC clock OSC

CLK_OSC_ADCA (Channel A)

CLK_OSC_ADCB (Channel B)

Pins 1 and 2

FPGA clock PLL

FPGA_TO_ADC_CLK

Pins 3 and 4

SMA clock (J27) SMA

SMA_TO_ADC_CLK

Pins 5 and 6

J37 & J36

Pin 2

OSC

PLL

SMA

Pin1

1 2 ... 27 28 29 30 31 32 33 34 35 36 37 ... 111 112

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Altera Cyclone II DSP Development Board Manuel d'utilisateur Page 32