The SY10/100E111 is a low-skew 1-to-9 differential driver designed for clock distribution in new, high-performance ECL systems. They accept one differential or single-ended input, with VBB used for single-ended operation. The signal is fanned out to nine identical differential outputs. An enable input is also provided such that a logic HIGH disables the device by forcing all Q outputs LOW and all Q outputs HIGH. The device is specifically designed and produced for low skew. The interconnect scheme and metal layout are carefully optimized for minimal gate-to-gate skew within the device. Wafer characterization and process control ensure consistent distribution of propagation delay from lot to lot. Since the E111 shares a common set of “basic” processing with the other members of the ECLinPS family, wafer characterization at the point of device personalization allows for tighter control of parameters, including propagation delay. To ensure that the skew specification is met, it is necessary that both sides of the differential output are terminated into 50Ω, even if only one side is being used.
The SY10E111 and SY100E111 are low‑skew 1‑to‑9 differential clock drivers for high‑performance ECL systems. They accept a differential or single‑ended input, fan‑out the signal to nine identical differential outputs, and include an enable input that disables all outputs when asserted.
The datasheet lists detailed DC and AC electrical characteristics, propagation delays, skew, setup/hold/release times, input swing limits, and mechanical package dimensions, as well as ordering codes for commercial availability.
| VEE output range | -4.2 V to -5.5 V |
|---|---|
| Propagation delay (single‑ended) | 330 ps – 730 ps |
| Within‑device skew | 25 ps – 50 ps |
| Set‑up time (EN to IN) | 200 ps |
| Hold time (IN to EN) | 0 ps – 200 ps |
| Release time (EN to IN) | 100 ps – 300 ps |
| Minimum input swing (VPP) | 250 mV |
| Common‑mode range | -1.6 V to -0.4 V |
| Rise/Fall times | 275 ps – 600 ps |
| Package dimensions | Dimensions in inches (see drawing) |
The SY10E111 provides a VEE output range of –4.2 V to –5.5 V.
The device fans the signal out to nine identical differential outputs.
The within‑device skew is specified as 25 ps to 50 ps.
Both sides of each differential output should be terminated into 50 Ω.