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I/O Si5338A (U2)Default FrequencyNotes

IN1/IN2

-

Not used (external clock signal supply).

IN3

25MHz

Fixed input clock signal from.

reference clock generator SiT8208AI (U3).

IN4

-

LSB of the default I2C-Adress 0x70.

IN5/IN6

-

Not used (external clock signal supply).

CLK0 A/B

100 MHz

Bank 14 clock input,

Pins: B14_L12_P, B14_L12_N

CLK1 A/B

125MHz

MGT reference clock 1 to FPGA Bank 116 MGT

CLK2 A/B

125MHz-

MGT reference clock 3 to FPGA Bank 115 MGT

CLK3-not used

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