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Basta un [[Ondeggiatore]]!
Basta un [[Ondeggiatore]]!


== Filtro di ingresso ==
=== Quadratura ===


set di filtri passa basso LC commutabili dimensionati per reggere in futuro un piccolo trasmettitore (<5W)
[http://www.ti.com/product/sn74lvc74a sn74lvc74a] 1.65 V to 3.6 V, tpd of 5.2 ns at 3.3 V
* http://www.gqrp.com/technical2.htm
 
i sistemi di switch praticabili sono:
 
* commutatore meccanico: problemi di cablaggio e di contatti
* diodi PIN: consumano molto, non sembrano esistere per 3.3v
* microrelays DIP: consumano abbastanza e hanno problemi di contatto (a meno di non implementare il 'DC wetting', non sembrano esistere per 3.3v
* FET discreti:
** http://www.n5ese.com/tr_switch.htm
** ci sono pochi FET con Vgth < 3.3v che lavorino bene ad alta frequenza:
*** http://www.st.com/web/catalog/sense_power/FM100/CL824/SC1164/PF253858
* Digital Bus Switch: hanno una Ron non indifferente, non reggono segnali molto forti, lavorano malino a 3.3v
** http://www.m0rjd.co.uk/bus-switches.html
** http://martein.home.xs4all.nl/pa3ake/hmode/IF_switches.html
* Analog FET switch
** gira voce che quelli che operano a 3.3v hanno una pompa di carica sul gate che fa rumore. verificare.
** cose del genere possono avere senso? http://www.ti.com/general/docs/lit/getliterature.tsp?baseLiteratureNumber=slyb125
** http://www.ti.com/product/ts3a4751 0.9-Ω LOW-VOLTAGE SINGLE-SUPPLY QUAD SPST ANALOG SWITCH
** http://www.maximintegrated.com/datasheet/index.mvp/id/3351 MAX4734 0.8Ω, Low-Voltage, 4-Channel Analog Multiplexer
* Amp Buffer integrati
** Una via (solo rx)
** ABA32563 http://www.avagotech.com/pages/en/rf_ics_discretes/rf_ics/silicon_amplifiers_gain_blocks/aba-32563/ reperibili a poco, bevono 37ma
 
letture:
 
* http://www.skyworksinc.com/downloads/press_room/published_articles/MPD_062009.pdf
* http://www.skyworksinc.com/downloads/press_room/published_articles/MPD_052009.pdf
* http://www.m0rzf.co.uk/softrock7/
 
== Topologie ==
 
* http://homepage.ntlworld.com/johngduffy/Project/Chapter2.htm#Multi
* http://zimmer.fresnostate.edu/~pkinman/pdfs/Receiver%20Architectures.pdf
* http://cdn.intechopen.com/pdfs/9961/InTech-Receiver_front_end_architectures_analysis_and_evaluation.pdf
 
=== Weaver ===
 
[[File:Image007.gif]]
 
implementabile su [[Laterizio]]
* http://www.hanssummers.com/weaver.html
* http://stor1.nonoo.hu/hamdsptutorial/weavermethod.pdf


=== Phasing ===
== Demodulatore ==
[[File:SSB figure10.gif]]


implementabile su [[Laterizio]]
Basta un [[Laterizio]]!


== Primo mixer ==
== Mixer ==


=== Gilbert-cell ===
=== Gilbert-cell ===
Line 76: Line 33:
ma sembrano introvabili a 3.3
ma sembrano introvabili a 3.3


=== Commutativo ===
=== Commutativi ===


http://www.oe1ira.at/sl/mix.html
* http://www.oe1ira.at/sl/mix.html
* http://www.phonestack.com/farhan/mixermusings.pdf
* http://g4oep.atspace.com/mixers/notes_on_the_basic_operation_of_.htm


http://g4oep.atspace.com/mixers/notes_on_the_basic_operation_of_.htm
occhio al bias!
* http://www.m0rjd.co.uk/bus-switches.html
* http://www.spinelectronics.eu/ftp/SDR/IK1ODO_SDR1.html


http://www.m0rjd.co.uk/bus-switches.html occhio al bias
==== Topologie ====
===== Subarmonic =====


* Polyakov [https://soldersmoke.blogspot.com/2010/03/polyakovs-russian-mixer.html 1], [https://www.qsl.net/pa2ohh/11qrx.htm 2]


==== Switch integrati ====
===== QSD =====


* http://www.ti.com/product/ts3a4751 0.9 Ohm Low-Voltage Single-Supply Quad SPST Analog Switch tON = 14 ns, tOFF = 9 ns, essendo spst bisogna avere due segnali LO complementari
* http://www.waves.utoronto.ca/prof/svhum/ece422/sdr/qsd.html
* http://www.ti.com/product/ts5a623157 Dual 10-Ohm SPDT Analog Switch With Undershoot/Overshoot Voltage Protection
* http://kc.flexradio.com/KnowledgebaseArticle50193.aspx SDR1000
* http://www.ti.com/product/ts5a23159 1-Ohm Dual SPDT Analog Switch 5 V/3.3 V 2-Channel 2:1 Multiplexer/Demultiplexer
* http://martein.home.xs4all.nl/pa3ake/hmode/IF_detector_qsd.html
* http://www.analog.com/en/switchesmultiplexers/analog-switches/adg711/products/product.html
* http://www.itsrainingelephants.com/blog-archives/tag/adg704/  
* http://www.ti.com/product/SN74CBT3257 4 poli 2 vie, 500Mhz, 4-5.5v, 4Ω, usato da kx3
* http://www.m0nka.co.uk/wp-content/uploads/2016/03/rx_mixer.pdf
** SN74CB3Q3257 versione a 3.3v, 500Mhz, 4Ω, con pompa di carica (potenzialmente rumorosa)
* http://www.m0rzf.co.uk/resources/QSD.pdf
** SN74CBTLV3257 bw 200 mhz, 5Ω, senza pompe di carica
 
===== H-mode =====
 
ma uscire in audio da un trasformatore e' grigia
 
* http://g4oep.atspace.com/mixers/notes_on_the_basic_operation_of_.htm#The%20QRSS%20Mixer. questo ha l'uscita audio
* http://martein.home.xs4all.nl/pa3ake/hmode/fsav430.html ma l'fsav430 pare semiintrovabile
* http://www.qsl.net/g3oou/solidstatecircuits9.html con due SPDT
* magari in versione 2T
** http://martein.home.xs4all.nl/pa3ake/hmode/2t-hmode.html
** http://www.arifidenza.it/forum/topic.asp?TOPIC_ID=81490


==== Bilanciati ====
===== Bilanciati =====


# http://www.sm0vpo.com/_visitors/blocks/cmos-mix.htm non si capisce come possa funzionare
# http://home.snafu.de/graff/sbt40.pdf rf splittata a condensatori, LO split a porte logiche
# http://home.snafu.de/graff/sbt40.pdf rf splittata a condensatori, LO split a porte logiche
# http://yu1lm.qrpradio.com/HF%20SDR%20RECEIVER%20CW-SSB-DRM%20YU1LM.pdf  
# http://yu1lm.qrpradio.com/HF%20SDR%20RECEIVER%20CW-SSB-DRM%20YU1LM.pdf  
Line 109: Line 81:
#* OUT sbilanciato
#* OUT sbilanciato
#* simile a https://lz3nf.wordpress.com/2013/07/25/280/
#* simile a https://lz3nf.wordpress.com/2013/07/25/280/
# http://www.qsl.net/aa9gg/proj/dc40xx_ugly/dc40xx_ugly.htm
#* Praticamente il n 3 bilanciato
#* RF bilanciata (trasformatore)
#* 74hc4053 3xSP2T
#* OUT bilanciato
# http://www.m0nka.co.uk/?page_id=466
#* RF bilanciata a trasformatore
#* LO + !LO
#* Out sbilanciato


==== H-mode ====
==== Componenti ====


http://www.phonestack.com/farhan/mixermusings.pdf
* [http://www.ti.com/product/ts3a4751 ts3a4751] 0.9 Ohm Low-Voltage Single-Supply Quad SPST Analog Switch tON = 14 ns, tOFF = 9 ns
* http://www.analog.com/en/switchesmultiplexers/analog-switches/adg711/products/product.html
* Dual 2:1
** [http://www.ti.com/product/ts5a623157 ts5a623157] 10-Ohm, With Undershoot/Overshoot Voltage Protection
** [http://www.ti.com/product/ts5a23159 ts5a23159] 1-Ohm, Break-Before-Make, 5V/3.3V, Ton 8ns, Toff 5ns
** [https://www.ti.com/product/TS3A24159 TS3A24159] 0.3-Ω, Break-Before-Make, 1.65-V to 3.6-V, Ton 20ns, Toff 12ns
* Quad 2:1
** [http://www.ti.com/product/SN74CBT3257 SN74CBT3257] 4 poli 2 vie, 500Mhz, 4-5.5v, 4Ω
*** [https://ftp.elecraft.com/K3S/Manuals%20Downloads/E740323%20K3s%20Schematic%20Files.pdf K3S] 
*** [https://ftp.elecraft.com/KX2/Manuals%20Downloads/E740324%20KX2%20Schematic%20Files%20RevA.pdf KX2] ne usa due in RX, ognuno RF in bilanciato, out bilanciato
*** [https://ftp.elecraft.com/KX3/Manuals%20Downloads/KX3SchematicDiagramDec2012.pdf KX3] ne usa due
** SN74CB3Q3257 versione a 3.3v, 500Mhz, 4Ω, con pompa di carica (potenzialmente rumorosa)
** SN74CBTLV3257 bw 200 mhz, 5Ω, senza pompe di carica
* Dual 1:4
** [http://www.ti.com/lit/pdf/scds018 SN74CBT3253] usato da [http://www.telepostinc.com/LP-PAN2-Manual.pdf LP-PAN2]
** [http://www.onsemi.com/PowerSolutions/product.do?id=FST3253 FST3253] usato da [http://fivedash.com/resource/RXTXEnsembleSchematic.pdf softrock] (uscita sbilanciata), [http://qrp-labs.com/receiver qrplabs], [http://www.jumaradio.com/juma-trx2/ JUMA-TRX2] (entrata bilanciata e uscita bilanciata) e [https://ftp.elecraft.com/KX2/Manuals%20Downloads/E740324%20KX2%20Schematic%20Files%20RevA.pdf KX2] (in TX) Esistono anche [http://www.ti.com/product/sn74cbt3253 sn74cbt3253] 5v, 200mhz, 5Ω e [http://www.ti.com/product/sn74cbtlv3253 sn74cbtlv3253] 3.3, 200mhz, 5Ω
** http://www.ti.com/product/TS3A5017/description, 165mhz, 11Ω
** [http://www.mouser.com/ds/2/149/FSAV331-112579.pdf FSAV331] usato in [https://martein.home.xs4all.nl/pa3ake/hmode/IF_detector.html pa3ake IF_detector board] e PI5V331 o [https://www.idt.com/document/dst/qs4a210-datasheet QS4A210] in [http://www.arrl.org/files/file/Technology/tis/info/pdf/030304qex020.pdf SDR-1000]  (BAL-BAL)
* http://www.analog.com/en/switchesmultiplexers/multiplexers-muxes/adg704/products/product.html SP4T, 2.5 Ω, +1.8 V to +5.5 V


ma uscire in audio da un trasformatore e' grigia
== Diplexer ==


* http://martein.home.xs4all.nl/pa3ake/hmode/fsav430.html ma l'fsav430 pare semiintrovabile
sul diplexer che segue il mixer si gioca buona parte della dinamica del ricevitore
* http://g4oep.atspace.com/mixers/notes_on_the_basic_operation_of_.htm#The%20QRSS%20Mixer. questo ha l'uscita audio
* http://www.qsl.net/g3oou/solidstatecircuits9.html con due SPDT
* magari in versione 2T
** http://martein.home.xs4all.nl/pa3ake/hmode/2t-hmode.html
** http://www.arifidenza.it/forum/topic.asp?TOPIC_ID=81490


==== QSD ====
http://www.qrp.pops.net/dip2.asp


ma ci vuole il LO in quadratura o un accrocchio
* http://www.qrp.pops.net/dip_sup.asp
* http://www.tuberadio.com/new.html
* http://www.vk6fh.com./vk6fh/DIPLEXER%201.htm
* http://www.robkalmeijer.nl/techniek/electronica/radiotechniek/hambladen/radcom/1991/04/page39/
* http://www.qsl.net/g3oou/mixerterminations.html
* http://www.seboldt.net/k0jd/r2pamp.txt


* http://kc.flexradio.com/KnowledgebaseArticle50193.aspx SDR1000
== Filtri RF ==
* http://martein.home.xs4all.nl/pa3ake/hmode/IF_detector_qsd.html


* http://www.ti.com/lit/ds/symlink/sn74cb3t3253.pdf
set di filtri passa banda LC commutabili (<5W)
* http://www.itsrainingelephants.com/blog-archives/tag/adg704/ http://www.analog.com/en/switchesmultiplexers/multiplexers-muxes/adg704/products/product.html


Altri mixer:
* http://www.gqrp.com/technical2.htm
* http://www.analog.com/en/rfif-components/mixersmultipliers/ad8343/products/product.html ma 5v
* http://martein.home.xs4all.nl/pa3ake/hmode/bpf_intro.html
* http://www.analog.com/en/rfif-components/mixersmultipliers/ad607/products/product.html basso consumo, if 400khz-12mhz, demod quadratura


===== switch =====
== Commutazione LP e PA ==


due SPDT
i sistemi di commutazione praticabili sono:
* 2 x FSA3157      1 x SPDT 7 Ohms       4.5 V 5.2 ns 3.5 ns  un classico 
* 1 x TS5A23160DGSR 2 x SPDT 1.1 Ohms 5 V 5.5 ns 10 ns    molto asimmetrico
* 1 x TS5A23157DGSR  2 x SPDT 10 Ohms 5 V 5.7 ns 3.8 ns  piu attenuazione ma piu simmetrico


== Diplexer ==
=== meccanico ===
* commutatore meccanico: problemi di cablaggio e di contatti
* microrelays DIP: consumano abbastanza e hanno problemi di contatto (a meno di non implementare il 'DC wetting', non sembrano esistere per 3.3v


sul diplexer che segue il mixer si gioca buona parte della dinamica del ricevitore
=== stato solido ===
* http://www.psemi.com/products/rf-switches
* diodi PIN: consumano molto, non sembrano esistere per 3.3v
* FET discreti:
** http://www.n5ese.com/tr_switch.htm
** ci sono pochi FET con Vgth < 3.3v che lavorino bene ad alta frequenza:
*** http://www.st.com/web/catalog/sense_power/FM100/CL824/SC1164/PF253858
* Bus/Analog Switch: hanno una Ron non indifferente, non reggono segnali molto forti, lavorano malino a 3.3v
** http://www.m0rjd.co.uk/bus-switches.html
** http://martein.home.xs4all.nl/pa3ake/hmode/IF_switches.html
** https://w3jdr.wordpress.com/fst3253-bus-switch-as-an-rf-switch/
** http://www.ti.com/general/docs/lit/getliterature.tsp?baseLiteratureNumber=slyb125
** http://www.ti.com/product/ts3a4751 0.9-Ω LOW-VOLTAGE SINGLE-SUPPLY QUAD SPST ANALOG SWITCH
** http://www.maximintegrated.com/datasheet/index.mvp/id/3351 MAX4734 0.8Ω, Low-Voltage, 4-Channel Analog Multiplexer
* Amp Buffer integrati
** Una via (solo rx)
** ABA32563 http://www.avagotech.com/pages/en/rf_ics_discretes/rf_ics/silicon_amplifiers_gain_blocks/aba-32563/ reperibili a poco, bevono 37ma


http://www.qrp.pops.net/dip2.asp
letture:


* http://www.qrp.pops.net/dip_sup.asp
* http://www.skyworksinc.com/downloads/press_room/published_articles/MPD_062009.pdf
* http://www.tuberadio.com/new.html
* http://www.skyworksinc.com/downloads/press_room/published_articles/MPD_052009.pdf
* http://www.vk6fh.com./vk6fh/DIPLEXER%201.htm
* http://www.m0rzf.co.uk/softrock7/
* http://www.robkalmeijer.nl/techniek/electronica/radiotechniek/hambladen/radcom/1991/04/page39/
* http://www.qsl.net/g3oou/mixerterminations.html
* http://www.seboldt.net/k0jd/r2pamp.txt


== Amplificatore audio ==
== Amplificatore audio ==


preamp e filtro LP:
=== Preamp e filtro LP ===
 
* LVM772 http://www.ti.com/product/lmv772
* TL974 http://www.ti.com/product/tl974
* OPA365 http://www.ti.com/product/opa365  2.2V, 50MHz, Low-Noise, Single-Supply Rail-to-Rail Operational Amplifier
* ADA4692-2 http://www.analog.com/en/all-operational-amplifiers-op-amps/operational-amplifiers-op-amps/ada4692-2/products/product.html  Low Power, Wideband, Low Noise, Rail-to-Rail Output, Dual Op Amp


* bilanciato
** http://www.ti.com/product/ths4532 Dual, Ultra low power 0.25mA, RRO, fully differential amplifier
* sbilanciato
** LVM772 http://www.ti.com/product/lmv772
** [http://www.ti.com/product/tl974 TL974] oppure [http://www.st.com/content/st_com/en/products/amplifiers-and-comparators/operational-amplifiers-op-amps/automotive-op-amps/ts972.html ts974] low noise 4nV/√Hz - 2.7-10v
** OPA365 http://www.ti.com/product/opa365  2.2V, 50MHz, Low-Noise, Single-Supply Rail-to-Rail Operational Amplifier
** ADA4692-2 http://www.analog.com/en/all-operational-amplifiers-op-amps/operational-amplifiers-op-amps/ada4692-2/products/product.html  Low Power, Wideband, Low Noise, Rail-to-Rail Output, Dual Op Amp


PA:
=== PA ===


* TPA2005D1 https://focus.ti.com/docs/prod/folders/print/tpa2005d1-q1.html
* TPA2005D1 https://focus.ti.com/docs/prod/folders/print/tpa2005d1-q1.html
* LM4667 http://www.ti.com/product/lm4667
* LM4667 http://www.ti.com/product/lm4667
* SSM2305 http://www.analog.com/en/audiovideo-products/audio-amplifiers/ssm2305/products/product.html
* SSM2305 http://www.analog.com/en/audiovideo-products/audio-amplifiers/ssm2305/products/product.html
== PA RF ==
* RD06HVF1
* RD02LUS2 470MHz,2W
* [http://www.st.com/content/st_com/en/products/radio-frequency-transistors/rf-ldmos-transistors/7v-rf-ldmos-hf-to-2ghz/pd54008-e.html PD54008] 8 W with 11.5dB gain @ 500 MHz/7.5 V
== LDO ==
* http://www.st.com/content/st_com/en/products/power-management/linear-voltage-regulators/low-dropout-ldo-linear-regulators/ld2985.html 280 mV at 150 mA and 7 mV at 1 mA, inhibit function
== Layout ==
=== Baseband ===
* mic preamp & lowpass
* lowpass & audio pa
* [[Laterizio]]
=== LO & Mix ===
* LO [[Ondeggiatore]]
* 90' squarer
* QSD/E
=== Frontend ===
* PA RF
* band filter
* RX attenuator
* T/R switch

Latest revision as of 14:29, 19 June 2019

un ricev(trasmett)itore HF cosi piccolo da poterlo custodire comodamente tra le fauci

  • piccolo
  • economico
  • a basso consumo (<100ma rx)
  • a bassa tensione (3.3v o 5v)

VFO

Basta un Ondeggiatore!

Quadratura

sn74lvc74a 1.65 V to 3.6 V, tpd of 5.2 ns at 3.3 V

Demodulatore

Basta un Laterizio!

Mixer

Gilbert-cell

Una cella di gilbert implementata con un array di bipolari: regge piu di un mosfet dual-gate e consuma meno di un ring di diodi

HFA3101 http://www.intersil.com/en/products/amplifiers-and-buffers/transistor-arrays/transistor-arrays---gilbert-cell-uhf/HFA3101.html

DGMOS

http://sm0vpo.com/blocks/mixers-1.htm

ma sembrano introvabili a 3.3

Commutativi

occhio al bias!

Topologie

Subarmonic
  • Polyakov 1, 2
QSD
H-mode

ma uscire in audio da un trasformatore e' grigia

Bilanciati
  1. http://home.snafu.de/graff/sbt40.pdf rf splittata a condensatori, LO split a porte logiche
  2. http://yu1lm.qrpradio.com/HF%20SDR%20RECEIVER%20CW-SSB-DRM%20YU1LM.pdf
    • RF sbilanciata
    • LO + !LO
    • OUT bilanciato
    • si puo reimplementare con un singolo SPDT
  3. http://www.qrp.pops.net/K7LR-Memorial.asp

Componenti

Diplexer

sul diplexer che segue il mixer si gioca buona parte della dinamica del ricevitore

http://www.qrp.pops.net/dip2.asp

Filtri RF

set di filtri passa banda LC commutabili (<5W)

Commutazione LP e PA

i sistemi di commutazione praticabili sono:

meccanico

  • commutatore meccanico: problemi di cablaggio e di contatti
  • microrelays DIP: consumano abbastanza e hanno problemi di contatto (a meno di non implementare il 'DC wetting', non sembrano esistere per 3.3v

stato solido

letture:

Amplificatore audio

Preamp e filtro LP

PA

PA RF

  • RD06HVF1
  • RD02LUS2 470MHz,2W
  • PD54008 8 W with 11.5dB gain @ 500 MHz/7.5 V

LDO

Layout

Baseband

  • mic preamp & lowpass
  • lowpass & audio pa
  • Laterizio

LO & Mix

Frontend

  • PA RF
  • band filter
  • RX attenuator
  • T/R switch
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