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Frame Sync Output. Frame synchronization output at 8 kHz. FSO is synced to CLKO

and to FSI (if FSI is provided).

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High Frequency Output

ï HFO is used to derive CLKO. HFO can also clock external

devices. HFO is always a multiple of CLKO (CLKO x2, x3, or x4).

Actual frequencies are determined by device, CLKI and CLKO frequencies and Mode

Select (SEL) input, as listed in Table 2.

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Clock Input

ï Input clock (1.544, 2.048 or 4.096 MHz) to be converted.

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Clock Output

ï Output clock (1.544, 2.048 or 4.096 MHz) derived from CLKI.

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Mode Select. controls frequency conversion as listed in Table 2.

When SEL = High, higher frequency CLKI (2.048 for LXP600A and LXP602, or 4.096

MHz for LXP604) is converted to 1.544 MHz CLKO.

When SEL = Low, 1.544 MHz CLKI is converted to higher frequency CLKO (2.048 for

LXP600A and LXP602, or 4.096 MHz for LXP604).

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FSI

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Frame Sync Input

ï 8 kHz frame synchronization pulse. Tie High or Low if not used.

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Power Supply

ï +5 V power supply input.

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