Creative 1820M 用户手册

7 - Appendix

Word Clock In/Out

E-MU Digital Audio System

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Word Clock In: Receives word clock (sample clock) from another digital device such as 
a digital video deck, digital recorder or digital mixer.

Word Clock Out: Sends word clock (sample clock) to another digital recorder. Word 
clock is always output, whether it is generated by the internal clock or passed through 
from the word clock input.

75Ω On/Off: Termination for the word clock input can be switched on or off in the 
Sync Card menu of the PatchMix DSP application. Normally word clock termination 
should be left on. If you have problems with a weak word clock signal, try turning termi-
nation off. See 

.

The diagram below shows the proper way to connect and terminate a serial word clock 
chain. Using a BNC “T” connector ensures that word clock is precisely in phase for both 
devices. The middle device has termination turned Off and the last device in the word 
clock chain has termination turned On.

A master word clock generator is preferable for larger digital setups.

T - connector

AES

ADAT Optical

This diagram shows the proper way to connect word clock if you don’t have a multi-output 
word clock generator. The last device in a Word Clock chain should have Termination ON.