Luff Research

Model SLSM: Single Loop Configuration

Features

In bands up to 10 GHz (fundamental)
Wide frequency range per unit (up to octave bands)
Frequency steps as low as 1 kHz
Good phase noise
Good spectral purity
Serial or parallel frequency control
Internal or external frequency reference
Small size
Low cost

Model SLSM2

Model SLSM3 / SLSM4

Block Diagram

Description

The new Luff SLSM models are advanced technology single phase-locked loop frequency synthesizer designs. These are self contained system level components. These units offer excellent performance for many applications.

In this basic architecture, a tradeoff between frequency resolution and phase noise performance needs to be made. These units are packaged in a miniature connectorized housing. The designs offer flexibility and easy customization for your specific requirement.

Model SLSM Key Specifications

	SLSM2	SLSM3	SLSM4
Output Frequency:	up to 10 GHz	up to 10 GHz	up to 10 GHz
Tuning Range:	up to octave band	up to octave band	up to octave band
Frequency Step Size:	1 MHz @ 10 GHz (typical)	1 MHz @ 10GHz (typical)	1 kHz (typical)
Spurious:	-60 dBc	-60 dBc	-60 dBc (typical)
Harmonics (typical):	-20 dBc	-20 dBc	-20 dBc
Output Power (min.):	+13 dBm	+13 dBm	+13 dBm
Output Power Variation:	3 dB	3 dB	3 dB
Frequency Control:	Parallel Coded CMOS Input	3 Wire Serial (TTL Input)	3 Wire Serial (TTL Input)
Alarm:	Open Collector	Open Collector	Open Collector
Power Requirements:	+12 / +15VDC	+5.2VDC	+5.2VDC
Size:	2.75" x 4.10" x 0.57"	2.50" x 2.50" x 0.60"	2.50" x 2.50" x 0.60"

Notes:

1. Frequency Reference: 10 MHz (typ) or Internal

2. Frequency Stability and Accuracy: Same as Input or �1 PPM with Internal Reference.

Phase Noise

See product datasheet for typical phase noise on specific units.

Samples of Specific Product Data Sheets

6500 to 7500 MHz in 1 MHz steps.

SLSM3-65007500/1M (PDF)

1000 to 2000 MHz in 1 kHz steps.

SLSM4-10002000/1K (PDF)

75 to 200 MHz in 125 kHz steps.

SLSM2-00750200/125K (PDF)