What is Frame Sync?
Frame sync(hronization) is the 8 KHz pulse that is presented to the CODEC to maintain its sampling frequency and sequence. Typically, a frame sync pulse is presented to a CODEC when it is supposed to feed out its 8 data bits at the data (bit) clock rate onto the PCM highway. The CODEC occupying the next time slot will get its frame sync pulse 8 data bit clocks later so that the following 8 data bits come from that CODEC. Back to Top ——————————————————————————– · What is the “Bit Clock?” The Bit Clock is the clock that determines the rate of the data bits in and out of the CODEC digital interface. This typically is 1.544 MHz in a North American system and 2.048 MHz in a European system. [See next question and answer.
