CLC006 Datasheet, PDF (4/12 Pages) National Semiconductor (TI) – Serial Digital Cable Driver with Adjustable Outputs

Operation (Continued)
FIGURE 3. DC Coupled Input
DS100084-6
OUTPUT INTERFACING
The CLC006’s class AB output stage, Figure 6, requires no
standing current in the output transistors and therefore re-
quires no biasing or pull-down resistors. Advantages of this
arrangement are lower power dissipation and fewer external
components. The output may be either D.C. or A.C. coupled
to the load. A bandgap voltage reference sets output voltage
levels which are compatible with F100K and 10K ECL when
correctly terminated. The outputs do not have the same out-
put voltage temperature coefficient as 10K. Therefore, noise
margins will be reduced over the full temperature range
when driving 10K ECL. Noise margins will not be affected
when interfacing to F100K since F100K is fully voltage and
temperature compensated.
DS100084-7
FIGURE 4. Single Ended 50Ω ECL Input
DS100084-8
FIGURE 5. Differential 50Ω ECL Input
DS100084-9
FIGURE 6. Output Stage
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