19F RX Option
60
Spectrospin AG
Daedalus Lock Manual
suppresses the 10 MHz reference and other low frequency disturbances. The lower
cutoff frequency is 30 MHz (f
2H
@ 200MHz), while the upper cutoff frequency is
115MHz (f
2H
@ 750MHz). The lowpass is built as a third order filter.
Figure 14: X_Option Block Diagram
Mixer
The X_REC and X_LO- signal are processed in a mixer (Mini-Circuit: LRMS 2D)
to IF. The capacitor at the RF Input improves the mixer matching for the X_REC In-
put. X_REC and X_LO are DC coupled.
LRMS_2D data: Conversion Loss: typ. 7.5dB, max 10dB; IF: DC-1000MHz
Attenuator
The attenuator following the mixer matches the mixer to 50 Ohm and suppresses the
crosstalk between the LO and the RF path.
Highpass
The second order highpass suppresses the 10 MHz reference and other low frequen-
cy interference. A 10 MHz signal is suppressed by more than 30 dB. The cutoff fre-
quency is 30 MHz (f
2H
@ 200MHz).
Buffer Amplifier
The buffer amplifier decouples both the high and low pass filter and compensates
the mixer, filter and attenuator losses.
The unit employed is a MSA 0186 from Avantek. Its operating resistance is 560
Ohm. The DC working value of the MSA 0186 is chosen such that the DC voltage at
the output is 5V and has a current of 17.8mA. The supply voltage is +15V
(LOCK_P15V).
Data for the MSA 0186: Gain: 17dB @ 0.5GHz; Noise Figure: 5.5dB @ 0.5GHz
Lowpass Filter
The third order lowpass filter suppresses the 19F-LO (X_LO) and 19F-RF (X_REC)
signals. The cutoff frequency is 115MHz. Frequencies below 188MHz (f
19F
@
200MHZ) are suppressed by more than 40dB.
DC Decoupling
The X_OPTION is DC decoupled with a 10nF condensor.
LP
HP
Mixer
Amp
DC-BLOCK
X_REC
X_LO
Mixer
Attenuator
Highpass
Buffer Amplifier
Lowpass
DC-Decouplings
X_IF
0dB@30MHz
0dB@115MHz
A=17dB
NF=5.5dB
A=-8dB
Содержание DAEDALUS
Страница 1: ...BRUKER BRUKER SPECTROSPIN AG SERVICE MANUAL DAEDALUS LOCK Version BSMS 004 ...
Страница 6: ...Contents 6 Spectrospin AG Daedalus Lock Manual ...
Страница 14: ...8 Spectrospin AG Daedalus Lock Manual ...
Страница 16: ...10 Spectrospin AG Daedalus Lock Manual ...
Страница 19: ...Daedalus Lock Catchwords for Bash Daedalus Lock Manual Spectrospin AG 13 Figure 1 Lock Function Diagram ...
Страница 26: ...General Description 20 Spectrospin AG Daedalus Lock Manual ...
Страница 36: ...Operation 30 Spectrospin AG Daedalus Lock Manual ...
Страница 56: ...Lock Transmitter 50 Spectrospin AG Daedalus Lock Manual ...
Страница 64: ...Lock Receiver 58 Spectrospin AG Daedalus Lock Manual ...
Страница 68: ...19F RX Option 62 Spectrospin AG Daedalus Lock Manual ...
Страница 85: ...Installation Daedalus Lock Manual Spectrospin AG 79 Installation 11 2 ...
Страница 86: ...Z0 Compensation Option 80 Spectrospin AG Daedalus Lock Manual ...
Страница 90: ...Technical Data 84 Spectrospin AG Daedalus Lock Manual ...
Страница 92: ...Trouble Shooting 86 Spectrospin AG Daedalus Lock Manual ...
Страница 98: ...BSMS service tool 92 Spectrospin AG Daedalus Lock Manual ...
Страница 107: ...Error Descriptions Daedalus Lock Manual Spectrospin AG 101 ...
Страница 108: ...Lock Error Messages 102 Spectrospin AG Daedalus Lock Manual ...
Страница 114: ...Appendix 108 Spectrospin AG Daedalus Lock Manual ...
Страница 122: ...116 Spectrospin AG Daedalus Lock Manual ...
Страница 123: ...Daedalus Lock Manual Spectrospin AG 117 Lock Transmitter Index B ...
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Страница 125: ...Daedalus Lock Manual Spectrospin AG 119 Lock Transmitter Index C ...
Страница 126: ...120 Spectrospin AG Daedalus Lock Manual ...
Страница 127: ...Daedalus Lock Manual Spectrospin AG 121 19F Transmitter Option Index A ...
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Страница 129: ...Daedalus Lock Manual Spectrospin AG 123 Lock Receiver Index C ...
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Страница 131: ...Daedalus Lock Manual Spectrospin AG 125 Lock Receiver Index D E ...
Страница 132: ...126 Spectrospin AG Daedalus Lock Manual ...
Страница 133: ...Daedalus Lock Manual Spectrospin AG 127 19F Receiver Option Index A ...
Страница 134: ...128 Spectrospin AG Daedalus Lock Manual ...
Страница 135: ...Daedalus Lock Manual Spectrospin AG 129 Lock Controller Index A ...
Страница 136: ...130 Spectrospin AG Daedalus Lock Manual ...
Страница 137: ...Daedalus Lock Manual Spectrospin AG 131 Lock Controller Index B C ...
Страница 138: ...132 Spectrospin AG Daedalus Lock Manual ...
Страница 139: ...Daedalus Lock Manual Spectrospin AG 133 Lock RS232 Biggy Board ...
Страница 140: ...134 Spectrospin AG Daedalus Lock Manual ...
Страница 141: ...Daedalus Lock Manual Spectrospin AG 135 Z0 Compensation Option ...
Страница 142: ...136 Spectrospin AG Daedalus Lock Manual ...
Страница 143: ...Daedalus Lock Manual Spectrospin AG 137 Cables ...
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Страница 145: ...Daedalus Lock Manual Spectrospin AG 139 Test Equipment Index A ...