SP5659 Datasheet (Mitel Networks) - 27GHz I2C Bus Low Phase Noise Synthesiser

SP5659, 27GHz I2C Bus Low Phase Noise Synthesiser

The SP5659 contains all the elements necessary * with the exception of a frequency reference, loop filter and external high voltage transistor * to control a varactor tuned local oscillator, so forming a complete PLL frequency synthesised source.

The device allows for operation with

SP5659 2 7GHz I2C Bus Low Phase Noise Synthesiser Preliminary Information Supersedes March 1996 version, DS4206-1.8 DS4296 - 2.0 June 1998 The SP5659 is a single chip frequency synthesiser designed for tuning systems up to 2 7GHz.

The RF preamplifier drives a divide-by two prescaler which can be disabled for applications up to 2GHz, allowing direct interfacing with the programmable divider, resulting in a step size equal to the comparison frequency.

For applications up to 2 7GHz the

SP5659 Features

* s s s s s s s s s Complete 2

* 7GHz Single Chip System Optimised for Low Phase Noise Selectable 42 prescaler Selectable Reference Division Ratio Selectable Reference/Comparison Frequency Output Selectable Charge Pump Current Varactor Drive Amplifier Disable 5-Level ADC Variable I2C BUS Address f