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CLOCK SIGNAL DISTRIBUTION AMPLIFIER, CSDA-1

FEATURES

 Distributes:

1 PPS, 5 MHz & 10 MHz signals

 High Isolation

 Low phase noise

 Very good stability

 Signal fault alarm

 Battery backup available

APPLICATIONS

 Clock signal applications

 Atomic frequency standards

 Atomic time scales

 Laboratory frequency distribution

 Reference frequency distribution

 Time synchronization

DESCRIPTION

The CSDA-1 is a high performance clock signal distribution and isolation amplifier. The device is used to

provide distribution of 1 PPS signals, 5 MHz signals and 10 MHz signals. The CSDA-1 contains a pulse

distribution module with one input and five buffered outputs that can drive a 50-ohm cable. The second module

is a 5 MHz distribution amplifier with one input and five outputs. The third module provides five buffered and

isolated 10 MHz signals that are obtained by doubling the 5 MHz input signal. The channel-to-channel isolation

in the RF distribution modules is typically 125 dB and reverse isolation is typically greater than 135 dB. The

phase noise of the modules is exceptionally low, typically –150 dBc/Hz @ Fourier frequency of 1 Hz and –172

dBc/Hz @ Fourier frequency greater than 10 kHz. Both the input and outputs are matched to 50 ohms to

obtain better than 25 dB return loss. All RF outputs are AC coupled and the grounds are DC isolated to reduce

the effect of ground loops.

SpectraDynamics, Inc. ● 1849 Cherry Street Unit 2, Louisville CO, 80027 ● Phone (303) 665 1852 ● Fax (303) 604 6088

www.spectradynamics.com

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SDI FS100-RM Manual do Utilizador Página 8