The SK10/100EL15W is a low skew 1:4 clock distribution chips designed explicitly for low skew clock distribution applications. This device is fully compatible with MC10EL15 & MC100EL15. The device can be driven by either a differential or single-ended ECL or, if positive power supplies are used, PECL input signal. If a single-ended input is to be used, the VBB output should be connected to the CLK* input and bypassed to VCC via a 0.01 F capacitor. The EL15W provides a VBB output for either single-ended use or as a DC bias for AC coupling to the device. The VBB pin should be used only as a bias for EL15W as its current sink/source capability is limited. Whenever used, the VBB pin should be bypassed to VCC via a 0.01 F capacitor.