SP5668KGMP1S PDF File ( Datasheet )

SP5668 2.7GH- 3-Wire Bus Controlled Synthesiser Preliminary Information DS4538 - 1.6 January 1997 . The SP5668 is a single chip frequency synthesiser designed for tuning systems up to 2.7GHz. The RF preamplifer contains a divide by two prescaler which can be disabled for applications up to 2GH- so enabling a step size equal to the comparison frequency up to 2GH- and twice the comparison frequency up to 2.7GHz. Comparison frequencies are obtained either from a crystal controlled on chip oscillat