Ne612 vs ne602 Nick is also building the Sudden Transceiver using Surface Mount Techniques and a CNC It's built with the finest materials, ensuring it can withstand the rigors of daily use. Let's compare it with a classic, popular NE602 mixer. This is a PLL-based demodulator. A Free & Open Forum For (discontinued ~20y back), the NE612 is the replacement. At pin 2 it exits the 4046 and is fed into a resistive divider to give a signal of about 260 mV amplitude, suitable for input into the NE612 mixer. The two transistor RF amplifier increases the sensitivity and prevents also that Local Oscillator signals from the mixer are leaking to the antenna input. Quotes, samples and datasheets at Jameco Electronics. A later version of this ic, the NE602AN, has improved dynamic range characteristics. So when they made the chips, they made a jillion NE612's, and labeled some of them NE612 and the rest NE602 to satisfy the users of both Applying the oscillator of the NE602 in low-power mixer applications December 1991 2 Author: Donald Anderson INTRODUCTION For the designer of low power RF systems, the Philips Semiconductors NE602 mixer/os-cillator provides mixer operation beyond 500MHz, a versatile oscillator capable of op - eration to 200MHz, and conversion gain, with box. 00 NE612 Datasheet. was an American multinational telecommunications company that was founded in 1928. The NE612 has two mixer inputs and two outputs. Dikalangan Amatir Radio atau Qrper cukup populer , diambil dari A brief explanation of a direct conversion receiver using the NE602 double balanced mixer and product detector IC. This is a short demo of my upconverter that makes use of NE612. The NE602 mixer, famously used in many amateur circuits, will be going out of production this year, together with its brothers NE612, SA602, SA612. However, it has plenty of uses at lower frequen- Post by MichaÅ SÅ omkowski I'm designing a HF transceiver and I'm going to use SA612/NE612 as a product detector. Then, over the holidays I decided to build a rig of some sort around the Si5351. All those things can be made using a ring mixer, balanced or unbalanced, or a mixer IC. SA602A NXP Data Sheet. The NE602 was originally de- signed for VHF receiver front ends, since the LO works up to 200 MHz. Because both mixer do not have 50 ohm output impedance so this time a 4:1 transformer is added to make it more match with the 50 ohm spectrum analyzer. That's the best we can hope for. The circuits allow for narrowband or wideband operation with input frequencies up to The IC belongs to a family of the following ICs: NE602, SA602, NE612 and SA612. NE602 Balanced Amplifier and Oscillator. or Best Offer +C $6. pdf?dl=0Experiments with radio circuits: here I use a converter board Maximum Output Voltage vs. I'm designing a HF transceiver and I'm going to use SA612/NE612 as a product detector. Unfortunately, the NE602 crumbles with a 40-meter dipole connected to the in- put, and the NE602-LM386 pair has notice- able distortion when driving a small speaker with multiple CW signals. SA602AN Based Circuit. Single-Ended Ceramic Filter NE612 c. Similar Part No. Selected category All. UHF LO generators. You can find them in smd packages and use small breakout PCBs to solder them Ta 7358 is another promising part that comes to mind. Generally the 612s are a little cheaper. Also available is the NE612. The dynamic range of the NE602 is fairly low so some form of manual or automatic gain control will be required. So when they made the chips, they made a jillion NE612's, and labeled some of them NE612 and the rest NE602 to satisfy the users of both The tuning voltage is stabilized by 4 LEDs but of course you can also use a 6. k. This technique is called direct conversion (DC). GM47: Simple 30m Band QRP Ne612, sa612. Comparison will include output voltage level and spectroscopic analysis Az első SA/NE602-ket a Signetics kezdte gyártani a nyolcvanas évek első felében. pdf?dl=0My DDS (Si5351) VFO project with sketch here: https://create. dropbox. It is a through hole kit that uses the popular NE602/612 mixer/oscillator and an LM386 audio amplifier for ear buds or a small speaker. html gibt es die Schaltung und Beschreibung. All of them work in the Beginner's Receiver with equal success. Ideally, only two frequency components will appear at the output: one at the difference frequency ( 4MHz - 3MHz = 1MHz) and one at the sum (4MHz + 3MHz = 7 MHz). '92 Im interested to get the article. The NE602 is a very low power active mixer , yet 7th overtone crystal oscillations are relatively easy to build. 5mm Audio Jack 1 Battery Conn. Because it's an active device the receiver has higher gain than those with passive mixers such as NE602 NE612 SA602A SA612A Balanced RF Amplifier and Oscillator The SA612A is a low-power VHF monolithic double-balanced mixer with on-board oscillator and voltage regulator. June 6, 2018 by Al Williams 31 Comments The NE612 is a child of the popular NE602 chip, which contains a Gilbert-cell mixer, Polish NE612 DSB Transceiver The NE602 mixer and oscillator allows a gain of about 18 dB; the same integrated is used in many similar schemes and in particular in RockMite. This would cause a lot of hum. Similar Description - NE612A: Manufacturer: Part # Datasheet: Description: NXP Semiconductors: SA602A: 109Kb / 11P: Double-balanced mixer and oscillator 1997 Nov 07: SA602A: 1Mb / 19P: Double-balanced mixer and oscillator The circuit starts with a NE612 mixer IC (IC1), which also contains an oscillator. In this test I am sending the baseband The Easy Receiver is a simple Direct Conversion circuit using the venerable NE602 as a mixer. Download (Size : 0. Description: NE602 PRIMER. Part #: NE602. NE602 PRIMER NXP Semiconductors: NE602A: 379Kb / 8P: DOUBLE BALANCED MIXER AND OSCILLATOR April 1990: NE602AD: 379Kb / 8P: DOUBLE BALANCED MIXER AND OSCILLATOR April 1990: Non-Exam Extras. So when they made the chips, they made a jillion NE612's, and labeled some of them NE612 and the rest NE602 to satisfy the users of both Figure 1 shows the equivalent circuit of This paper shows how to use the NE602 and NE5212 in VHF and a quartz crystal. As I mentioned in the previous post about it, the receiver develops and unfortunate, LOUD squeal whenever the 10K audio gain pot at sits between the NE602 and the LM386 is advanced past about the 20% position. Products in stock and ready to ship. Balanced Output Figure 4. using the NE602 and NE5212 1991 Dec 2 INTRODUCTION This paper shows how to use the NE602 and NE5212 in VHF and UHF LO generators. this huge shortage of ne612's, combined with the fact that ne602's have been discontinued/obsolete, is what convinved qrpers that I'm building a kind of sweep/spectrum analyzer and I'm noticing better signal handling with the TA7358 vs. SPICE Model for NE602 Wanted - Page 1. pcbway NE602 40m DC Receiver. It is intended for high performa There are four different versions of this chip NE602, NE612, SA602 and SA612. The very common NE612 - SA612 IC's are no longer relevant and are obsolete. NE/SA are different manufacturers, 602/612 are different test specs. From what I understand the main difference between NE and SA is that SA has extended temperature range (primarily made for military use I RF to 500MHz. However, it has plenty of uses at lower frequen- NE602 App Note - Free download as PDF File (. datasheet ne612 Understanding the NE612 Integrated Circuit. That’s the reason why I have integrated a NE602 or NE612 Double Balanced Mixer 615 mixer data sheet - (130K) in PDF format. It is a sensitive direct conversion receiver kit that covers the 40m band for cw or ssb reception. At the input we start with a potentiometer of 1 k ohm, it is the While searching for such a simple transmitter I came across the ancient mixer IC NE602 (SA602 or NE612/SA612) in one of my many tinkering boxes. Frequency of interest 10 MHz. A különbséget az elnevezések között nem a gyártó, hanem a specifikáció terén kell keresni: míg az SA Rangkaian NE612 paling sederhana diantara ketiganya. Colpitts Crystal Oscillator (Overtone Mode) November 3, 1987 NE612 FILTER K&L38780 OR EaUIVALENT ·CT MATCHES 3. If you find a datasheet with the equivalent circuit of the device, you'll see that most of the published NE602 projects boil down to well-known oscillator circuits with names from The SA/NE602 is a low-power VHF monolithic double-balanced mixer with input amplifier, on-board oscillator, and voltage regulator. Състои се от генератор и смесител. ssb receiver ne602 ne612 qrp. Brand New. Title: Microsoft Word - Document1 Document information AN1982 Applying the oscillator of the SA602A in low-power mixer applications Rev. The NE602 Oscillator. Frequency; Choosing the right OPAMP to drive an ADC (SAR ADC) Bipolar Voltage to Unipolar Voltage ADC Driver; Mixer-NE612. 7x = Be the first to review “NE602, NE612, SA602, SA612” Cancel reply. The FET source follower will have a gain of circa 0. 30. Last edited: Jul 7, 2008. NE612 Datasheet (HTML) - NXP Semiconductors NE612 Product details: DESCRIPTION The NE/SA612A is a low-power VHF monolithic double-balanced mixer with on-board oscillator and voltage regulator. For variable capacitors you could buy them from China or salvage one from an old radio. Explore the possibilities with the TA7642. I'm trying to understand how the Colpitts LC tank circuit in Philips' application note AN1982 for the NE602 works. Business & Industrial. Mike thinks a 180 pF would also work Component Changes: U1, the NE612, was replaced with an NE602. Shop by Oscillator (Replaces NE612/SA612) SA602 4pcs SA602N RF Double Balanced Mixer, Oscillator (Replaces NE612/SA612) SA602. 5 Results. The "NE602 Primer"- by Carr featured in Elektor Electronics Jan. Check the Philips app notes on NE612 "AN1982 - Applying the Oscillator of the NE602 in Low Power Mixer Applications", Signetics Linear Products Data Book, Page 4-80 NE612_PhilipsSemiconductors - Free download as PDF File (. Manufacturer: List of Unclassifed Manufacturers. 3157 4 1 published: jan 31,2023. Alignment For the receiver alignment use of an existing receiver is recommended. pdf?dl=0Testes de recepção dcRx, agora com propagação melhor e sinais mais forte Abstract: advantages and disadvantages of gilbert cell ne612 application notes NE604 Philips NE602 down converter Signetics NE565 NE602 ic Signal mixing NE602 NE612 equivalent NE602 mixer Text: Philips Components-Signetics Document Application Note Author. The resulting mixer products are taken out from pin 4. and the mixer to 500 MHz. This bandwidth is a little large for 1 IC1 NE602 NE602A NE602 or SA612, 8 pin IC 1 C6 50pF brn Trimmer capacitor, brown 1 R5 10K A A10K Green Potentiometer, Volume 1 R2 10K B B10K Green Potentiometer, Tuning 1 BNC BNC BNC Antenna Connector 1 Phone Jack Audio 3. Nigel Goodwin Super Moderator. It was headquartered in Schaumburg, Illinois and was one of the largest providers of mobile phones, telecommunication equipment, and semiconductors. A single NE602 forms both the transmitter's balanced modulator and the receiver's product detector. References This page was last edited on 9 January 2025, at Re: NE602 and NE612 end of life. ssb radio ne612 qrp radio ad9850 ad9833 si5351 40m band. However, customers kept ordering the NE602, getting angry at Signetics because their distributors were out of stock, etc. This ic, being pin-compatible with the NE602, has, like the NE602AN (which is difficult to obtain), an enlarged dynamic range. But for most of the last four decades NE602 = NE612 = SA602 = SA612. check these links on info of NE612 circuit and symbol. Usually, these two dominate over a No tune FM demodulator using an NE602 or any of its derivatives like the NE612, SA602, and SA612. 7MHz or greater. ) and 10250 kHz (C4 min. This is an active balanced mixer IC widely NE612 a. The NE602 VFO can be substituted for the FET VFO with no other circuit changes. The venerable NE602/SA612 is unfortunately now history. And I didn't see anything about it having been discontinued or obsoleted. Consult the NE602 data sheet. The tuning voltage is stabilized by 4 LEDs but of course you can also use a 6. « Last Edit: July 18, 2018, 05:44:56 pm by imo » Logged Readers discretion is advised. SSB RECEIVER NE602 NE612 SI5351 Related: sa602an ne612 ne5532 preamp valjoux 7750 ne88 chronograph ne88 watch. In receive mode pin 2 of the right NE612 is used as signal input. Both the application note and the datasheet show that pins 6 and 7 provide access to an NPN transistor with an 18K resistor from base to VCC and a 25K resistor from emitter to ground RF to 500MHz. In order to make the MRX-40 work on 80 meters, the LC ratios had to be rescaled. 5 For higher frequencies the LO input may be externally driven. All the usual suppliers show 0 stock. Link to this page. Manufacturer: NXP Semiconductors. The required input level is between 0. Datasheet: 110Kb/12P. It is, of course, possible to use smaller coil, Builder's Notes . Discover the amazing world of the NE602 integrated circuit, a complete one-chip radio! Learn how to use it as an oscillator, mixer, or balanced modulator. If we assume the audio power amplifier (not shown) has a gain of 20 dB (10x). Here is another circuit design from Cliff Donley, (K8TND) he calls “Lucky Strike”. This document discusses four high sensitivity receiver circuits that use intermediate frequencies of 10. It is unfair to judge the capabilities of direct-conversion receivers by listening only to designs optimized for simplicity and low cost. NE614A. The mixer receives signals from the antenna after passing through a bandpass filter to limit them to the 40 Meter range. The extra $5 is worth the expense. Datasheet Using a 7805 voltage regulator does a great job of isolating the NE602 from the B+ line. Masalah utama jika pakai DDS adalah supply signal butuh 200-300mV(-15dB). From what I understand the main difference between NE and SA The Elecraft KH1 transceiver appears to be an NE602-based superhet and includes two NE602 that appear to be older stock. Category. Motorola, Inc. ) by means of the variable capacitor. 11 shipping. The dynamic range of the NE602 is something which can be improved. The noise figure at 45MHz is typically less than 5dB. C $16. The oscilla-tor is a Colpitts type and is tuned here using a dual-varicap diode (D1). - NE612: Manufacturer: Part # Datasheet: Description: NXP Semiconductors: NE612A: 163Kb / 8P: Double-balanced mixer and oscillator 1990 Sep 17: NE612AD: 163Kb / 8P: Double-balanced mixer and oscillator 1990 Sep 17: RF to 500MHz. SA612 NXP Data Sheet. Get started with the basic schematic system When connecting with capacitor C and pins 1 and 7 of NE612, care should be taken to join properly: coil ends 1 and 3 with ground, 2 with capacitors C and 560 pF, and 4 with 1 nF capacitor. It is intended for low cost, low power communication systems with signal frequencies to 500MHz and local oscillator frequencies as high as 200MHz. IC in a ordinary 8-pin dual-in-line can be bought implementation (DIP) or 8-pin SO (surface-mount miniature NE602 - Double-Balanced Mixer and Oscillator NEjSA602 Double-Balanced Mixer and Oscillator Product Specification DESCRIPTION The SA/NE602 is a low-power VHF monolithic double-balanced mixer with. arduino. 2 V zener diode. There was never much difference 602 vs 612 in the first place and it evaporated long ago and NE -> SA is merely a corporate nomenclature issue. from China. nl (This is an adapted version of part of an article I wrote for the Dutch amateur radio magazine Electron, May 2023. The cool part of the gilbert cell ne602 series (and similar) is its one chip with an oscillator and a mixer and the performance is barely good enough for 1980s analog cordless phones at 49 mhz with small antennas over a short range. 2. Receiver tuning should be possible between 10050 kHz (C4 max. Philips describe their NE602 mixer (SA602A) circuit as "a low-power VHF monolithic double-balanced mixer with input amplifier, on-board oscillator, and voltage regulator. The mixer is a well known NE612 (or NE602, SA602, SA612). The 820ohm resistor should provide sufficient voltage drop but a 6v low power regulator (78L06) could be used instead. RF to 500MHz. Regards, Sarma. Optimization of such circuits is shown in the first part of this paper. Same basic specs just tested less extensively Post by JE Anyone know if these NTE7164 is a drop in replacement for NE602? Anybody know if the NE602 NE612 actually generates AM by default, without needing us to actually do anything extra (ie. NE612. Filter. This was redesignated the NE612, and was intended to replace the NE602. With this and some transistors it should be possible to build a useful modulator. $11. VFO signal is fed into pin 6. NE602 PRIMER NXP Semiconductors: NE602A: 379Kb / 8P: DOUBLE BALANCED MIXER AND OSCILLATOR April 1990: NE602AD: 379Kb / 8P: DOUBLE BALANCED MIXER AND OSCILLATOR April 1990: Unter http://elektronikbasteln. The NE612, also known as the NE612A, is a versatile analog multiplier and mixer IC that is widely used in radio frequency (RF) and intermediate frequency (IF) applications. I know that's the 602 and you were asking about 612. I started with a superhet receiver using an NE602 as I'm not sure anyone is old enough to realize what "No Tune" means. By paralleling one 150 pF with a 22 pF capacitor, the desired value is achieved. NEW! - How to link directly to this page ssb radio ne612 ne602 si5351 from tarsus/turkey. the first run of ne612's in 2 years finally occured in september 2000. By using a low cost mixer IC chip called the NE612 and some passive components Tomasz was able to build a The NE602 is an fantastic integrated circuit, complete one chip radio! The NE602/SA602/NE612/SA612 family, all have inside, an oscillator and double-balanced mixer. So when they made the chips, they made a jillion NE612's, and labeled some of them NE612 and the rest NE602 to satisfy the users of both NE612 Datasheet (PDF) - NXP Semiconductors: Click to view in HTML datasheet. Information reprinted from Signetics Data Sheet NE/SA602 Double-Balanced Mixer and Oscillator "The oscillator is capable of sustaining oscillation beyond 200MHZ in crystal or tuned tank NE602 / NE612 ssb transceiver full schematic Ini merupakan kumpulan beberapa skema diagram Transceiver yang menggunakan IC NE602, NE612, SA602, SA612 . ne612 е интегрална схема преднзначена за обработка на радиочестотни сигнали. NE602 NE612 SA602A SA612A Balanced RF Amplifier and Oscillator The SA612A is a low-power VHF monolithic double-balanced mixer with on-board oscillator and voltage regulator. NE612 DIP: IC2 : 78L06: IC3 : TL072 DIP e. It contains a Gilbert Cell Multiplier and an oscillator. The board for mixer NE602 / NE612 ssb transceiver full schematic Ini merupakan kumpulan beberapa skema diagram Transceiver yang menggunakan IC NE602, NE612, SA602, SA612 . ON1DHT's 50 MHz Converter Look under "Wireless" in his index on the left side of his home page. The NE602A is an improved NE602 and the NE602AN with AN the N means nothing as regards the IC only how it was packaged. Single-Ended Crystal Filter NES12 d. join our "electronics discussion group" Bibliography: - Philips Semiconductors - Semiconductors for Wireless Communications 1999 - IC17. T2 acts as an oscillator coil for the 455-kHz local oscillator (or, in this case, beat frequency oscillator). com/s/7xxl9irlivlaurv/MIXER_RX_NE602. This makes it very suitable for this sort of radio. Mixer A NE612 is a mixer (multiplier), with a low current consumption of about 2 mA. Modern DSP experimenters PA1DSP - Why NOT to use the NE602 Many simple receivers I see around the web are based on the NE602 (a. The gain, intercept performance, low-power and noise Re: NE602 and NE612 end of life. BAND L Toko Number VC pF C4 pF C3 pF C2 pF C1 pF Although shown for an NE602/612 oscillator, these values should work with other Colpitts VFO circuits. Perhaps Elecraft had a lot The well-known mixer NE612 (NXP) will be compared to an AN612 (Matsushita/Panasonic) mixer that has been unsoldered from an old CB-SSB-radio. I read that the mixer can either be single-ended or balanced, and a double-balanced mixer has the best performance in terms of LO-RF isolation, as both The NE612 is a child of the popular NE602 chip, which contains a Gilbert-cell mixer, and an oscillator that makes building a receiver much easier than it has been in the past. Either component will The oscillator section of an NE602 is just a single transistor with DC bias arrangement. We are indeed fortunate for one of the Sudden Transceiver builders has been keeping notes on the progress of his build and is sharing those notes with the greater ham community you can find those here Many Thanks to Nick Tile, G8INE who authored the notes. ). Read More » Advertisement Schematics here: https://www. Description: Double-balanced mixer and oscillator. NE602 application note. NE602, SA602, NE602 & SA612. It's a hit or miss with the older DIP packages, I found some of them to be DOI already, and some of them are counterfeit. You must be logged in to post a review. The 602 series IC's can replace the SA612 , SA612A, NXP Semiconductors SA602AN Audio Communication, RF Mixer. SKll TO NEXT STAGE. Before PLLs were easy to come by all FM demodulation were either discriminator or slope-detector or ratio-detector based using LC networks that required being aligned/tuned "just so" to operate properly. 9V 9V Battery Connector 12” Wire Wire 2-12 inch sections Hookup wire, 2 colors Schematics here: https://www. 3,157 views. 1dB of conversion gain in the NE602. 8 V or 8. Good luck finding any reputable sellers. Search for "NE612" or "SA612" instead. php 6905 Bytes 10-10-2024 09:10:42 MIXER - The Arduino FFT Spectrum Analyzer + Direct Conversion Receiver (NE602 + Si5351), with improvements in graphic presentation. 1-Euro 2 pieces of BATTERYCLIP 9 VOLT Whether you are sharing innovative hardware designs or finding design inspiration, this is the best place for you. This is a terrible impediment to reception, so I’ve been working on The signal of the VCO in the 4046 is buffered by feeding it into the internal phase detector. cc/ NE612 datasheet, NE612 pdf, NE612 data sheet, datasheet, data sheet, pdf, Philips, Double-balanced mixer and oscillator Negli anni 80 spopolava fra i costruttori QRP il famoso NE620/SA602, oggi il nuovo AD831 come si comporta ? Test veloce di Ik2nbu Arnaldo the world wide supply of ne602/ne612's virtually dried up during 2000 as a result of this fire and the nearly year backlog of manufacturing quotas. 00 +$9. Unfortunately, these ideas contain a number of troubling flaws that ultimately proved fatal to widespread application of this approach. 20 Below is the Pixie of W1FB, equipped with an audio filter with 741 operational circuit (and The tuning voltage is stabilized by 4 LEDs but of course you can also use a 6. SSB Transceiver 40m Band RX test NE602 , LM386, x'tal 10Mhz , DDS vfo 717. desingn by ustaoglu audio tb5cvn. Related products Toevoegen aan wenslijst. Abstract: advantages and disadvantages of gilbert cell ne612 application notes NE604 Philips NE602 down converter Signetics NE565 NE602 ic Signal mixing NE602 NE612 equivalent NE602 mixer Text: Philips Components Transmitter: SSB Modulator for USB or LSB: NE602/SA612, 4-Pole-Ladder-Filter, TX-Mixer, NE602/SA612, Power amplifer: The NE612 MUST have narrow bandfilter. of a new IIC, the Signetics NE602. It is widely used in amateur radio applications, [2] e. Posted by u/SarahC - 2 votes and 1 comment “Sensitive retro look radio capable of receiving signals from middle wave and short wave band. Modern production by NXP was branded with the SA prefix. I believe WA3RNC was the first to publish a 2 chip receiver design using the LM386 and the NE602 - the direct conversion design that launched a zillion kits :) And yes, the TR-25 uses the SA612 and the LM386 although now in a The SA602, SA612, and NE602 are virtually identical. The values below use Toko standard inductors to achieve a VFO for a range of amateur band. If you are wondering what Amateur Radio is about, it's basically a two way radio service where licensed operators throughout the world experiment and communicate with each other on frequencies reserved for license holders. No toroids available - connect NE602's pin6 to CLK1 of the Si5351 through the coax core and a 1pF cap; - connect Si535 to NE602's GND (pin3) When I connect it to the Ne612 it starts to transmit a a signal, strong enough to prevet my SDR receiver from receiving anythig at the operating frequency of the si5351. 110Kb/12P. In this section, we will delve into the intricacies of the NE612 integrated circuit, exploring its functionality and applications. 1. A slightly better way is to use a varactor diode and a ten turn pot to do the tuning. I intend to experiment the basics with an NE602 double balanced mixer. The component values depend on operating frequency and are typical for 455-kHz operation. Radio tubes are valves. NE602 Datasheet. like (I. jan 31,2023. You can use that same mixer in a superhet design, but it is definitely more work. qrp 20m IRF510 2 x NE612 LM386 LCD VFO NE612 Datasheet. The NE602 contains an LO and dou- ble-balanced mixer in an 8-pin DIP, as shown in Fig. This circuit uses an NE602 as a product detector. SA/NE612. txt) or read online for free. EEVblog Electronics Community Forum. Read More » Advertisement The data-sheets of the SA/NE612 tells that with about -15dBm of rf input you start to get IP3 compression in action, but I can't find that parameter for the Toshiba TA7358AP. Note that a passive RC filter is showtt in the audio output circuit. The NE602 is a very low power active mixer, yet 7th overtone crystal oscillations are relatively easy to build. Include description. Tube NE 612 or Röhre NE612 ID39161, IC - Integrated Circuit, SPECIAL TUBEBASE in general and Frequency converter shown. The device itself enables the possibility of listening to shortwave stations via popular RTL This design can be improved by adding a RF gain control, substituting the SA/NE602 with a SA/NE612, improving the audio amplification, and filtering, adding a digital frequency readout, a RF filter with sharper roll-out, and using varicap tuning rather than air-variable tuning(C16 is an air-variable, while C18, and C3 can be trimmers. This IC finds his applications in layer capacity communication systems, cellular radio applications, RF data left, VHF-transceivers, broadband LAN's ed. pl7. Demonstrating the performance of a direct conversion radio receiver using the NE602 IC double balanced product detector#direct #conversion #radio #radiofrequ Gilbert cell mixers Pieter-Tjerk de Boer, PA3FWM web@pa3fwm. 97MB) NE602 Datasheet box. You have to make a custom part in the CAD software or see if someone has done that. The data-sheets of the SA/NE612 tells that with about -15dBm of rf input you start to get IP3 compression in action, but I can't find that parameter for the Toshiba TA7358AP. In summary, the NE602 is the perfect choice for anyone looking for a high-performance computing device that combines style, power, and convenience. The demodulator works well with frequencies between about 420 KHz to 500 KHz. com has done. With an MC1496 you get to set your own choice of bias current Using the NE602 or NE612 mixer is a handy way to make a direct conversion receiver with only a little more work. Jadi kemungkinan berhasil saat eksperimen dengan NE612 lebih tinggi. Basically is it eential to use NE602 for a superheterodyne radio- when ready designed chips are available and are reasonably cheap. It is intended for high performance, low power communication systems. We invite you to design and share with us. Hi everyone. Opens in a new window or tab. 2 — 29 August 2014 Application note Info Content Tom Hall AK2B up in New York helped me get the Si5351 VFO and BFO going -- thanks Tom. The NE602 also boasts an impressive battery life, so you can use it all day without worrying about recharging. NE602 / NE612 ssb transceiver full schematic Ini merupakan kumpulan beberapa skema diagram Transceiver yang menggunakan IC NE602, NE612, SA602, SA612 . The rest of the oscillator has to be built out of off-chip components. no need for us to add our own DC to the message)? Details about the NE602 and NE612 mention ability to generate AM, but I was assuming these ICs are meant to produce double sideband (DSB-SC, no carrier) by default. com/s/bgq790nscps58gi/Receptor_NE602_DC. Part #: NE612. 2, a block diagram of the IC. NE612 SA612 and NE/SA602 are all same and pin compatible. W3JDR 's LTSpice NE602/SA612 Here's something we've needed for a long time: an LTSpice model for the ever-popular NE602/SA612 chip. The Mixer is fol-lowed by a crystal filter which has a centre frequency of 45 MHz and a bandwidth of 15 kHz. Each circuit uses a low-power VHF mixer and high-performance low-power IF strip. I see a lot of There are four different versions of this chip NE602, NE612, SA602 and SA612. This radio receiver is capable of receiving all MW and SW bandwidth, and can also operate as an SDR receiver, so with the help of PC and appropriate software we can decode many different types of signals. The NE602 “mixes” this with the necessary frequency to result in audio to send to the LM386 for amplification. This chip packs a mixer and oscillator into a tiny 8-pin DIP package. Welcome to Reddit's own amateur (ham) radio club. ne612 1 Articles . Homebrew SDR Ham Radio In 9 Parts. But it can be adapted for use in almost any rig that produces its modulation (be at AM or SSB) at an intermediate frequency, that is then mixed to the desired output frequency and amplified in linear fashion. The NE602 is a very rare and hard to find IC. VFO using an NE602 (or NE612) mixer. in the commercial Elecraft products, and others. Part #: NE602A. They are available for purchase commercially, or you can build your own, which is what Tomasz of mightydevices. The heart of the converter has been built around Philips SA602 (NE602 or NE612), a twice balanced mixer oscillator. Datasheet: 996Kb/6P. I'm experimenting with a SE612 mixer to learn the basis of RF. This old dinasaur "a red line says I havn't spelt it correctly" is happy that my comments re the MC1496 are agreed by others I have tried both the 602 and 612 and personally found them wanting. Google doesn't give me any useful info about it. F) to 12KHz a sample diagram is attached courtesy the designer. Print; Search While searching for such a simple transmitter I came across the ancient mixer IC NE602 (SA602 or NE612/SA612) in one of my many tinkering boxes. 19 Another Chinese Pixie 40 m FT8 by BD6CR . It is cheap and easy to obtain. Output Configuration NE612 b. Работната ѝ честота достига до 500 mhz, ne612 е сходна с ne602, sa602, ne612 и sa612. . The NE602 is not good at all for receivers, those mixer ICs only work well under circumstances where the amplitudes are known. Check the VFO frequency first. The 40B kitter offers a board version (special order) that accommodates an SMD SA612. The NE602s are set to very light bias currents and have single-ended ports. Single-Ended 1FT NE612 a. pdf), Text File (. NE612 SSB RECEIVER NE602 NE602 ne602 equivalent, ne602. Nada! I was so desperate to search NE602, NE612, SA602, SA612 all virtually identical. a the SA602, NE612 and SA612) chip. Do not let the voltage on pin 8 of the NE602 exceed 8v. Back when I started in electronics as a teen, these were still the rule, of a new IIC, the Signetics NE602. g. As far as increasing sensitivity goes, a problem immediately occurs because the radio frequency amplifiers necessary for each stage of the TRF receiver are inherently unstable. b. Find many great new & used options and get the best deals for Ne602 RF Double Balanced Mixer IC Sa602 at the best online prices at eBay! Free shipping for many products! Skip to main content. General description The SA602A is a low-power VHF monolithic double-balanced mixer with input amplifier, on-board oscillator, and voltage regulator. I'm not sure what is the optimal signal level, which should be delivered to the inputs from the IF amplifier to achieve the best performance? There is no standard symbol for NE612, just a square box. That said, I just wanted to chime in and ask about this. de/am-modulation-mit-einem-sa612-oder-sa602-ne612-ne602. Updated : January 25 th; Input amplifier Updated : The NE612 has a gain of 17dB typical (14 dB minimum). The combination of a 7805 voltage regulator and the NE602 makes a very stable VFO with a minimum of effort. 5pcs NE602AN NE602 DIP-8 Mixer & Oscillator NE602AN DIP-8 Mixer & Oscillator #su. This is a single chip superhet receiver with an intermediate frequency of zero Hertz. The 'Micro 40' is a simple DSB voice transceiver for the 7 MHz amateur band. Optimization of such circuits is shown in the first part of this paper . 0 · Duell der Mischer ICs Download the schematics here: https://www. From all circuits I found, there are two, more or less close to what I intend to build winding my own coils. I'm building a kind of sweep/spectrum analyzer and I'm noticing better signal handling with the TA7358 vs. NE615. KH: Headphone Ri > 60 Ohm: Alignment . Troubleshooting continues apace on the new NE602-based direct-conversion receiver. C1 worked out to 172 pF. So when they made the chips, they made a jillion NE612's, and labeled some of them NE612 and the rest NE602 to satisfy the users of both For image-reject receivers, instead of 1 baseband signal from a DC receiver, we get 2 baseband signals: Q or quadrature-phase that lies 90° out of phase with the I or in-phase signal (phase 0). Joe Rocci, W3JDR, developed this one back in December. NE612: 110Kb / 12P: Double-balanced mixer and oscillator 1997 Nov 07: More results. Upconverters are often used to extend the RTL-SDR dongles minimum receivable range down to the HF, MF and LF bands. From beginner to specialist, we can all communicate and learn together. I'm not sure what is the optimal signal level, which Diode ring, just like the linked article. i am making a HF upconverter, but unfortunately i do not have accsess for these chips, is there any alternatives for it ? Thanks! An NE602 Balanced Modulator T he above circuit was developed by Bill, W3DUQ and Tom, K1JJ for use in the Yaesu FT-102. iytnpoexcadbotvhxjoiyxxlsdzywxrlckcizcrrqfots