SP5658 Datasheet (Mitel Networks) - 2.7GHz 3-Wire Bus Controlled Frequency Synthesiser

SP5658, 2.7GHz 3-Wire Bus Controlled Frequency Synthesiser

The SP5658 contains all the elements necessary, with the exception of a frequency reference, loop filter and external high voltage transistor, to control a varicap tuned local oscillator, so forming a complete PLL frequency synthesised source.

The device allows for operation with a high comparison f

SP5658 2.7GHz 3-Wire Bus Controlled Frequency Synthesiser Advance Information Supersedes October 1996 Media IC Handbook HB3923-2 DS4064 - 4.1 March 1998 The SP5658 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 2GHz so enabling a step size equal to the comparison frequency up to 2GHz and twice the comparison frequency up to 2.7GHz.

Comparison frequencies are obtai

SP5658 Features

* s Complete 2.7GHz single chip system s Optimised for low phase noise s Selectable divide by two prescaler s Selectable reference division ratio s Charge pump disable s Varactor line disable s ‘In

* lock’ flag s Two switching ports in 14 pin version s Four switching ports in 16 pin version s Pi