Multi-reference clock synchronization techniques

摘要

Efficient synchronization techniques that support multiple reference clocks in an EQAM device. Consider a plurality of different modulators in the EQAM device receiving data from a corresponding plurality of different sources having corresponding different timing references (i.e., different source reference clocks). To accommodate this, the modulators all operate using a common system clock, and each modulator is provided with a phase synchronizer. The phase synchronizer synchronizes the modulated symbol phases to the corresponding reference clock.

主权项

1. An apparatus, comprising:
a phase synchronizer configured to generate symbol phase information based on a reference clock and a system clock; and a modulator coupled to the phase synchronizer, the modulator being configured to generate a symbol stream based on received data and the symbol phase information.