Title :
Multi-channel down-conversion for MicroTCA.4 based control systems
Author :
Mavric, U. ; Czuba, K. ; Ludwig, F. ; Hoffmann, M. ; Piekarski, J. ; Schlarb, H. ; Sikora, D.
Author_Institution :
Deutsches Elektronen Sychrotron (DESY), Hamburg, Germany
Abstract :
One of the major benefit of the MicroTCA.4 system is to combine high-speed digital data processing AMC boards with high precision analog signal conditioning RTM boards. We present a multi-channel down-converter based on the MicroTCA.4 system operating in the 1GHz to 4GHz range with an excellent short-term amplitude stability of 6.5E-5 and phase stability of 3.5E-3 degree within a 1MHz bandwidth at 1.3GHz. The down-converter consists of the entire receiver, packed as an RTM board, which down converts the high frequency signal into an intermediate frequency, which is non-IQ sampled by a multi-channel 16-bit digitizer realized as an AMC board. We present all relevant signals along the detection chain and discuss the signal integrity within the RTM and AMC boards for a spurious free operation of the best ADCs available today.
Keywords :
analogue-digital conversion; control engineering computing; digital signal processing chips; 16-bit digitizer; ADC; MicroTCA.4 based control systems; RTM board; high frequency signal; high precision analog signal conditioning RTM boards; high-speed digital data processing AMC boards; intermediate frequency; multichannel down-conversion; multichannel down-converter; phase stability; short-term amplitude stability; Bandwidth; Frequency measurement; Noise measurement; Phase noise; Resonator filters; Signal resolution;
Conference_Titel :
Real Time Conference (RT), 2014 19th IEEE-NPSS
Print_ISBN :
978-1-4799-3658-8
DOI :
10.1109/RTC.2014.7097543
