Now downloading free:Stanford Research Systems www.thinksrs.com-SG384 CarrierSuppress IQ
Stanford Research Systems www.thinksrs.com-SG384 CarrierSuppress IQ free download
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| File name: | www.thinksrs.com-SG384_CarrierSuppress_IQ.pdf [preview www.thinksrs.com-SG384 CarrierSuppress IQ] |
| Size: | 88 kB |
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| Mfg: | Stanford Research Systems |
| Model: | www.thinksrs.com-SG384 CarrierSuppress IQ 🔎 |
| Original: | www.thinksrs.com-SG384 CarrierSuppress IQ 🔎 |
| Descr: | Stanford Research Systems www.thinksrs.com-SG384_CarrierSuppress_IQ.pdf |
| Group: | Electronics > Other |
| Uploaded: | 04-02-2020 |
| User: | Anonymous |
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| Extracted files: | 1 | |
| File name | Text | |
| www.thinksrs.com-SG384_CarrierSuppress_IQ.pdf | SRS Tech Note ____________________________________________________________________________________________________________________________________________________________ Carrier suppression in the SG384 RF Sig Gen when using external I/Q modulation Some customers require high carrier suppression when using the external I/Q modulation inputs. Tests have shown that the SG384 (with Option 3, External I/Q modulation inputs) can provide more than 70 dB of carrier suppression with careful control of the offset voltage on the external I/Q modulation inputs. The photo below shows the power signal envelope of a SG384 in the External I/Q modulation mode. The carrier is 0 dBm at 3 GHz. The external modulation source (from the BNC output of another SG384) is a 5 kHz, 1 Vpp sine, pulse modulated with a 50% duty cycle at 1 kHz and applied to the I input only. The DC offsets of the I&Q inputs were adjusted to minimize the carrier feedthrough during the external modulation "off" time. The | |
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