Phase Generator Board - AOS Technology - #1

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AOS TECHNOLOGY LIMITED T. +44 (0)1664 567711 F. +44 (0)1664 567712 E. mail@aost.co.uk www.aost.co.uk 46 Pate Rd MELTON MOWBRAY LE13 0RG United Kingdom Registration No. 3266182 VAT No. 684 1011 56 All information contained in this document is subject to change without notice and in no event will AOS Technology Ltd be liable for damages arising directly or indirectly from any use of the data contained herein














 
 FEATURES
Synchronously locked f,2f and 3f TTL outputs
Independently phase controlled f,2f and 3f outputs
9 bit phase control on each channel (0.7o)
Dedicated analogue O/P synchronised with f output
6.051kHz fundamental at 9 bits resolution
Single +5 volt power requirement
0 – 2 volt DAC output for experimental drive
ROM written analogue output function APPLICATIONS Designed as a primary source of modulation control and excitement for Phase Sensitive Detection (PSD) based experiments and equipment. Specifically designed as a key component in the AOS Derivative Spectroscopy System. This component board is useful in any application that requires precise control of a number of individual frequency components (f, 2f and 3f) which are derived from the same crystal standard. DESCRIPTION This board provides synchronised and phase delay controlled TTL signals at a fundamental frequency (nominally~6kHz), the first harmonic (2f) and the second harmonic (3f). It also allows the user to define an output voltage waveform (written in ROM) which can be used to drive the modulation input to laser diodes and other experimental apparatus. Designed as an OEM module for inclusion in dedicated PSD based equipment this board forms part of an ideal value-for-money integrated measurement solution. The fundamental frequency and hence the harmonics are set by a combination of crystal frequency and required bit resolution. Nominally the module is sold with a fundamental frequency of 6.051kHz although this frequency may be easily reduced by judicious selection of the main crystal frequency. It is also possible to increase the operational frequency albeit with a reduction is phase control bit resolution. AOS Technology is always very happy to here and discuss individual OEM requirements and as such this board really forms part of a extremely flexible PSD measurement system which can be tailored to individual needs.