Synthesized Source Group Operation - Keysight N5224B Series Service Manual

Theory of Operation

Synthesized Source Group Operation

Synthesized Source Group Operation
Version 6 Synthesizers:
The source group produces a stable output signal by phase locking a
synthesized voltage-controlled oscillator (VCO).
For the full frequency range of the source, refer to the N5224/5B Version 6
Synthesizers and Below – Data Sheet and Technical Specifications
documents,
https://www.keysight.com/upload/cmc_upload/All/N5224B-25B_Synth6.pdf
and
https://www.keysight.com/upload/cmc_upload/All/N5224B-25B_Metrology
_Synth6.pdf
The outputs at the front panel test ports are swept, stepped or CW signals.
Maximum leveled output powers are also listed in the Data Sheet and
Technical Specifications documents.
group, refer to
Version 7 Synthesizers
The source group produces an output signal by multiplying up using a
synthesized oven-controlled crystal-oscillator (OCXO) and using this signal as
the direct digital synthesizer (DDS) assembly's reference.
For the full frequency range of the version 7 synthesizers, refer to the
"N5224/5B– (900 Hz) 10 MHz to 50 GHz – Data Sheet and Technical
Specifications documents",
https://www.keysight.com/us/en/assets/9018-04171/technical-specificatio
ns/9018-04171.pdf
https://www.keysight.com/us/en/assets/9018-04179/technical-specificatio
ns/9018-04179.pdf
5-10
1
available online at:
Figure 5-6 on page
(N5224-90003) and
(N5224-90004).
1. Version 6 synthesizers and below: For frequency ranges and maximum output
power levels, refer to the section "Test Port Output" in the N5224/5B Version 6 and
Below Synthesizers – (900 Hz) 10 MHz to 50 GHz Data Sheet and Technical Spec-
ifications documents (see hyperlinks above).
2. Version 7 synthesizers: For PNA frequency ranges and maximum output power lev-
els, refer to the section "Test Port Output" in the online Keysight document,
"N5224/5B– (900 Hz) 10 MHz to 50 GHz Data Sheet and Technical Specifica-
tions." See the hyperlink above.
3. Version 7 synthesizers: For PNA frequency ranges and maximum output power lev-
els, refer to the section "Test Port Output" in the online Keysight document,
"N5224/5B– (900 Hz) 10 MHz to 50 GHz Data Sheet and Technical Specifica-
tions." See the hyperlink above.
For a simple block diagram of the source
1
5-13.
2
available online at:
3
Keysight N5224B/25B Service Guide