The SY100EL17V is a quad differential receiver. The device is functionally equivalent to the E116 device with the capability of operation from either a ECL supply voltage (3.3V or 5V) or PECL supply voltage (+3.3V or +5V). The EL17V 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 the EL17V as its current sink/source capability is limited. Whenever used, the VBB pin should be bypassed to ground via a 0.01f capacitor.