Description Specifications Software

The frequency synthesizer module is a multifunctional device intended to prevent incompatibility problems between different models of frequency standards from different manufacturers and different generations and to provide a complete set of outputs with the standard signals in one device. Manufactured as a module, this device can be installed in any modular instrument of JSC RUKNAR and can significantly expand its functionality. The device has three independent functional blocks in one module: frequency synthesizer, standard signals former and time scale former. Optionally, any of these blocks can be excluded from the device. The module has external control via USB 2.0 interface from a PC or tablet PC. Software included.

Table 1. Available options of the sintesizer module.

Block	Option
Block	00	-01	-02	-03
1. Frequency sintesizer	√	-	√	√
2. Dual channel time scale former	√	√	-	√
3. Standard signals former	√	√	√	-

Table 2. Specification of sintesizer module.

No	Parameter	Unit	Value
No	Parameter	Unit	guaranteed	typical
Dual channel time scale former
1.	Period	s	1	1
2.	Number of outputs / type of connector		2 / SMA
3.	Pulse amplitude @ 50 Ohm load	V	не менее 2.5	2.6
4.	Pulse width	us	10 … 20	12.8
5.	Rise time	ns	not more than 5	2
6.	Fall time	ns	not more than 5	2
7.	Programmed delay between base and additional time scales in the range	us	0…999999.9	0…999999.9
8.	Delay programming step	us	0.1	0.1
9.	Synchronization error of the base time scale on the external time scale	ns	100
10.	The ability to continuously smoothly change the delay	there is
11.	The ability to save delay in memory and restore it on power-on	there is
Standard signals former
1.	The frequencies of the output signals	MHz	1, 5, 10
2.	Number of outputs / type of connector		3 / SMA
3.	Signals form		sine
4.	The effective value of the output voltage at the 50 Ohm load	V	0.8 … 1.2	1.0
5.	Second harmonics level	дБ	-30	-35
Frequency sintesizer
1.	Signals form		sinusoidal + pulse
2.	Number of outputs / type of connectors		2 / SMA
3.	Output frequency programming range	Hz	100 …100 000 000
4.	Output relative phase programming range	degree	0 … 360
5.	Phase programming step	degree	< 0.03	0.022
6.	Frequency programming step	Hz	< 4^.10^-6
7.	Second harmonic level for sinusoidal signal	dB	-30	-40
8.	The effective value of the output voltage @ 50 Ohm load for sinusoidal signal	V	0.8 … 1.2	1.0
9.	Pulse amplitude @ 50 Ohm for pulse signal	V	not more than 2.5	2.6
10.	Rise and fall width	nc	not more than 2	1,7
11.	Pulse duty cycle		0.45 … 0.55	0.48
12.	Added instability at synthesis a sinusoidal signal			< 2.0^.10^-12
13.	The ability to directly set the frequency and phase of the output signal with a specified accuracy.	there is
14.	The ability to continuously smoothly change the phase and frequency of output signal	there is
15.	The ability to save phase and frequency in memory and restore it on power-on	there is

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Frequency synthesizer module