EEVblog 1770 - Rigol RSA800 Real Time Spectrum Analyser TEARDOWN + Reverse Engineering

Teardown and reverse engineering of the new Rigol RSA800 series Real Time Spectrum Analyser, from 4.5GHz to 13GHz.4.5GHz RSA804 8.5GHz RSA808 14GHz RSA814 https://www.rigolna.com/products/spectrum-analyzers/rsa800/00:00 - Rigol's new RSA800 Real Time Spectrum Analyser06:48 - Teardown11:42 - RF front end box teardown. Mad Man Muntz14:55 - Back side of the RF block16:50 - Reverse Engineering with DaveCAD22:05 - Attenuator & Preamplifier23:41 - Interesting split into separate HF and LF mixers25:47 - Preselect filters27:33 - Flux residue!28:23 - HF and LF Mixers and 1st stage PLL30:58 - Downconversion mixing explained32:48 - 2nd Stage Active IF Mixer, now we are getting serious36:01 - Final 3rd stage active mixer36:57 - Dave is WRONG, but why you might want two ADC's vs one39:20 - No Dave, it's a DAC40:25 - Speculating on the custom ADC used, and digital quadrature sampling41:49 - Mystery LTC part, and what on earth is going on here with these PCB couplers?44:32 - Teardown Conclusion45:51 - Demo comparison of a DSA815 and RSA808, Real Time vs Swept AnalysisForum: https://www.eevblog.com/forum/testgear/new-rigol-rsa800-spectrum-analyser/Datasheets:SIS378 Switch: https://www.sicoresemi.com/ueditor/php/upload/file/20250818/1755497980219246.pdfSIAT116 Attenuator: https://www.sicoresemi.com/ueditor/php/upload/file/20260427/1777277733715489.pdfLF Mixer : https://www.sicoresemi.com/ueditor/php/upload/file/20250923/1758612877124723.pdfSIM445 HF Mixer: https://www.sicoresemi.com/ueditor/php/upload/file/20260709/1783577453983448.pdfSIA070 Amplifier: https://www.sicoresemi.com/ueditor/php/upload/file/20260509/1778310579506957.pdfSIS119 Absorptive Switch: https://www.sicoresemi.com/ueditor/php/upload/file/20250324/1742806808125089.pdfSIP052 Phase Converter: https://www.sicoresemi.com/ueditor/php/upload/file/20240627/1719477861130248.pdfSIA332 Amplifier: https://www.sicoresemi.com/ueditor/php/upload/file/20240924/1727159790115927.pdfLMX2820 PLL: https://www.ti.com/lit/ds/symlink/lmx2820.pdfLTC5577 Active Mixer: https://www.analog.com/media/en/technical-documentation/data-sheets/5577f.pdfWeb Site: http://www.eevblog.comHardware Store: https://eevblog.store/Merch Store: https://eevblog.dashery.com/If you find my videos useful you may consider supporting the EEVblog on Patreon: http://www.patreon.com/eevblogOther channels:EEVblog2: http://www.youtube.com/EEVblog2EEVdiscover: https://www.youtube.com/eevdiscover#ElectronicsCreators #Rigol #spectrumanalyzer...https://www.youtube.com/watch?v=oci89u-sL0s