Datasheet LXP604ANE, LXP602ANE, LXP600ANE Datasheet (Level One Communications)

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CLKI
SEL
HFO
CLKO
Analog
Phase-Locked
Loop
Feedback
Divider
Frequency
Converter
Output Divider
Frame Sync
Generator
FSO
FSI
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Frame Sync Output. Frame synchronization output at 8 kHz. FSO
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(if FSI is provided).
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High Frequency Outputï 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.
ê&/.,,
Clock Inputï Input clock (1.544, 2.048 or 4.096 MHz) to be converted.
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Clock Outputï 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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Frame Sync Inputï 8 kHz frame synchronization pulse. Tie High or Low if not used.
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Nominal Jitter Transfer - 2.048 MHz CLKI to 1.544 MHz CLKO (Input Jitter = 0.25 UI)
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Nominal Jitter T ransfer - 1.544 MHz CLKI to 2.048 MHz CLKO (Input Jitter = 0.25 UI)
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