Smooth clock switching method and clock system
A clock system and smooth switching technology, which is applied in transmission systems, digital transmission systems, automatic power control, etc., can solve the problems of clock phase mutation, clock edge difference, and high price
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[0023] The specific implementation of the technology adopted in the present invention will be described in detail below.
[0024] Figure 4 A schematic diagram of the composition of a dual-bus clock system with a phase-locked loop is shown according to the present invention.
[0025] Figure 4 It shows that the dual-bus clock system with phase-locked loop according to the present invention includes a main timing module 1 and a backup timing module 2, a clock / frame header bus and a single disk. A single disc can be multiple single discs (#1, . . . , #n). The following takes a single disk as an example for description.
[0026] A single disk includes: clock frame header detection / selection, analog phase-locked loop, phase-locked loop control module, clock edge difference detection module, frequency compensation circuit, and clock frame header distribution.
[0027] The single disk adopts the clock frame header dual-bus mode, and each timing module has a clock / frame header se...
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