Sa612 mixer circuits

Although the modular Portable Mixer design available on these web pages has become a hit for many amateurs, some correspondents required a much simpler device, mainly for mixing mono signals. This design should fulfil their needs, featuring three inputs with switchable high/low sensitivity and unusual level-control circuits, providing high ... SA612.asc (6.13 KB, 1070 ... The model I used for SA612 mixer and an ss is attached. ... the question is how to do this from datasheet without modeling a circuit. · Microwave Mixers · Stripline Quadrature Microwave Mixers · High IP3 Mixer +40dBm - IK4AUY · 1296 MHz Diode Mixer - WA6UAM · Dual-FET HF Mixer · High Dynamic Range HF Mixer · High IP3 (33dBm) BJT Mixer · 900 MHz BJT Gilbert Mixer The SA612 Mixer is powered at 6.0 Volts because of the Zener diode. The resistor R1, therefore, is the current limiting resistor to protect the Zener D3. The C101 capacitor is connected to ground just to filter away any spurious noise that is on the power lead going into the mixer. Pin 3 of the SA612 is connected directly to ground. ble-balanced mixer in an 8-pin DIP, as shown in Fig. 2, a block diagram of the IC. The NE602 was originally de- signed for VHF receiver front ends, since the LO works up to 200 MHz. and the mixer to 500 MHz. However, it has plenty of uses at lower frequen- cies as well, and this article will ex- plore them. Circuit description Jun 04, 2014 · Note that the SA612AD is in a small surface mount package. The SA612AN is the bigger original package with pins, which makes experimentation easier. What are those boxes with "Bias"? “Bias” is inside the chip. It provides the DC reference voltages and currents needed to accurately position... The SA612 actually amplifies the output as well as mixing it. There is around 5dB of loss in mixing, and then 22dB of gain, leaving a net 15dB gain with over 5dB noise figure (because of the mixer). I have put a 4401 device to do this amplification, because the ADE-1L is only a mixer. The 50ohm output of the mixer is impedance matched to 700 ohms. ߥ˥ å ҡ Mini-Circuits ˤ ᡼ Ǥ ࡦ 륨 ճ Ҥ ߥ˥ å Ҥ ܹ Ź Ǥ The SA612A is a low-power VHF monolithic double-balanced mixer with on-board oscillator and voltage regulator. It is intended for low cost, low-power communication systems with signal frequencies to 500 MHz and local oscillator frequencies as high as 200 MHz. The mixer is a ‘Gilbert cell’ multiplier co nfiguration that provid es gain of 14 dB or more at 45 MHz. Pete showcased a nice simple rig on his web site that used a pair of SA612's in a bilateral circuit with one as the tx/rx mixer, and the other as the product detector / balanced modulator with relay switching of the IF filter between the inputs and outputs of the mixers. The SA612 is a poor performer in the RX mixer position under strong signal ... NE602AN RF Amp , Oscillator and Mixer for sale. The NE602 is a very rare and hard to find IC. The NE602A is an improved NE602 and the NE602AN with AN the N means nothing as regards the IC only how it was packaged. The 602 series IC’s can replace the SA612 , SA612A, SA612AN , NE612 , NE612A , NE612AN same pin out and they share the same data ... The problem is there with the SA612 mixer, micro, MAX232, and Osc xtal removed from the circuit. By lifting pin 1 off the op amp and using a simple 470K resistor makes the tone less harsh (still present). Of course you can’t drive your headphones this way. HORRID SQUEAL SOLVED! Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. The heart of the receiver is the SA612A is a low-power monolithic double-balanced mixer with on-board oscillator and voltage regulator. It is intended for low cost, low power communication systems with signal frequencies to 500MHz and local oscillator I built this receiving converter in December of 2018. The 50MHz RF & mixer stage is an SA612 integrated circuit followed by a 2N3904 post mixer amplifier at 28 MHz. http://www.vk2fc.com/6m_sa_612_converter.php. An Ultra-Simple Receiver For 6 Meters by N1TEV Here is a simple VHF receiver you can build without any special components or test equipment. The front end circuit is shown below. It uses the NXP / Philips NE602 double-balanced mixer chip; or, as here, the SA612, which is a lower cost version. C5 and C6 were NOT fitted in the final build. In this simple speech processor the audio signal from the first stage microphone amplifier Q202 (PC-200) is coupled to integrated oscillator and mixer circuit NE612A (SA612), which converts it to a 6.4 MHz signal. Sep 08, 2014 · First mixer is old but excellent double balanced mixer MC1496 chosen before ubiquitous SA612 because of better balance and carrier suppression and variable gain capability. On its output, MC1496 produce DSB signal that is then passed through 2,7KHz wide 8-pole crystal filter with 501,650KHz central frequency. The SA612 has a stage gain around 18/20 dB and an IP3 around -15dBm. It means that if two strong signal passing through the IF filter reach this stage they will generate important intermodulation, we hope it will be “handled†by the DSP with software BPF and Notches. Jan 13, 2003 · 2 SA612A 8 pin DIP mixer/osc 1 LM358N 8 pin DIP dual op amp 2 LM386N 8 pin DIP Audio amp 1 74HC4053N 16 pin DIP multiplexer 1 ATTINY13A 8 pin DIP Atmel processor 6 8 pin DIP socket 1 16 pin DIP socket 6 9.000 MHz, series HU-49US crystal matched 1 FT50-42 Black, Ferrite core, large 1 FT37-42 Black, ferrite core, small 2 T50-2 Red powered iron core The VCO is a varicap-controlled FET LC oscillator with an emitter-follower buffer. The amplifier is a pair of cascaded MSA-0404 MMICs. I'm not going to describe these two modules in greater detail because I recommend using a commercial VCO such as the Mini-Circuits POS-300 instead. This can be mounted adjacent to the first mixer. The receiver is a simple syperheterodyne type with quartz crystal filter. The circuit is based on two NE612 mixer IC’s and one audio amplifier LM386. The electrical circuit as it described below in the manual is intended for 14.000MHz – 14.350MHz upper single side band receiving of amateur radio transmissions. Nov 28, 2018 · Whole circuit is powered by the Bench power supply with 12V. All the connections can be seen in the below images-You can check the working of Audio Mixer Circuit in the Video given below. The circuit is working really well and there is no audible noise. We can also add multiple outputs to the circuit. Further Modifications Imagine this test with any other mixer types like DBM (diode mixers). Mixer’s performance AM sensitivity is describing with signal in mV at mixer input which will produce unwanted signal at noise level (MDS).Good values for mixers are 5-10mV or signals S9 plus 50-60 dB at mixer input. Solution for this problem is utility of better linearity ... The audio signal from the first stage microphone amplifier Q202 (PC-200) is coupled to integrated oscillator and mixer circuit NE612A (SA612), which converts it to a 6.4 MHz signal. The heterodyning action of the mixer produces a double sideband signal (DSB), which is coupled to the second integrated clipper and mixer circuit. The NE612 is an integrated circuit for processing of signals, such as in the transmission of radio signals. It comprises an oscillator and a mixer. It can handle signal frequencies up to 500 MHz and local oscillator frequencies up to 200 MHz. The mixer is a “ Gilbert cell ” multiplier configuration which provides both a gain of 14 dB and a noise figure of 5 dB at 45 MHz. Mixer TX (low) VFO RX Mixer 4 MHz Xtal Filter SA612 SA612 SA612 ~4 MHz 3 -3.05 MHz Product Detector RX (high) RX -TX = 800 Hz AF Amp BP Filter AF Out NE5532 The Product Detector The product detector’s job is to convert an incoming signal from RF frequencies to audio frequencies. It is simply another mixer whose output is in the audio frequency range. Product Detector Nov 11, 2017 · The last time I used an SA602 (a.k.a. equivalently as NE602, NE612 and SA612) was in 2003. It has poor IP3 and Dynamic Range. It was suitable in its intended application as a 45MHz 2nd IF mixer in early telecoms equipment. Using the NE602 "ELECTRONICS NOW" © Feb 1997. NE602 Page 1 : NE602 Page 2 : NE602 Page 3 : NE602 Page 4 : NE602 Page 5 : NE602 Page 6 : NE602 Page 7 : NE602 Page 8 ... mixer. A TAK-3H mixer may be substituted if higher dynamic range is needed (see text). The 2.5 x 3.5-inch board RI PC board is the heart of the Classic 40 and Sisu receivers. The board layout follows the schematic of Fig 2 fairly closely. This version uses a Mini- Circuits TAK-3H high-level mixer (in the lower-left corner of the board). The ... Sa612an Integrated Circuit Dip-8 'uk Company Since 1983 Nikko' For Sale Online. ... Sa612 Ad. Sa612 Ad - Sa612ad Soic-8 Mixer Ic Smd Version Of Sa612 - Ne612 - New ... An FPGA is an integrated circuit that can be easily reconfigured to implement various different digital circuits. ... (the crystal oscillator and the SA612 mixer). ble-balanced mixer in an 8-pin DIP, as shown in Fig. 2, a block diagram of the IC. The NE602 was originally de- signed for VHF receiver front ends, since the LO works up to 200 MHz. and the mixer to 500 MHz. However, it has plenty of uses at lower frequen- cies as well, and this article will ex- plore them. Circuit description The VCO is a varicap-controlled FET LC oscillator with an emitter-follower buffer. The amplifier is a pair of cascaded MSA-0404 MMICs. I'm not going to describe these two modules in greater detail because I recommend using a commercial VCO such as the Mini-Circuits POS-300 instead. This can be mounted adjacent to the first mixer. The SA612 Mixer is powered at 6.0 Volts because of the Zener diode. The resistor R1, therefore, is the current limiting resistor to protect the Zener D3. The C101 capacitor is connected to ground just to filter away any spurious noise that is on the power lead going into the mixer. Pin 3 of the SA612 is connected directly to ground. The SA612 has a stage gain around 18/20 dB and an IP3 around -15dBm. It means that if two strong signal passing through the IF filter reach this stage they will generate important intermodulation, we hope it will be “handled†by the DSP with software BPF and Notches. This signal is quite ragged but very suitable for driving a balanced mixer like an SA612 (e.g., in mixing applications). When C3 is placed at the “C3b” position, a much more sinusoid-like100-200 mV p-p signal is delivered at RF Out, which is more suitable for use as a “standard” 10 MHz oscillator standard in the shack. The SA612A is a low-power VHF monolithic double-balanced mixer with on-board oscillator and voltage regulator. It is intended for low cost, low-power communication systems with signal frequencies to 500 MHz and local oscillator frequencies as high as 200 MHz. The mixer is a ‘Gilbert cell’ multiplier co nfiguration that provid es gain of 14 dB or more at 45 MHz.

It’s hard to go back that far The Signetics (philips Components) NE602/SA602 is a monolithic integrated circuit containing a double balanced mixer (DBM), an oscillator, and an internal voltage regulator in a single eight-pin package. Abmessungen: 420 x 161 x 445mm. The 5 volts VCC voltage is supplied by U2, a 7805 3-terminal regulator. U2 also supplies the other SA612 mixer further down the line. On receive, the 40-meter input signal is coupled through the DC blocking capacitor C16 to pin 1. The 0.001uf capacitor has about 22 ohms impedance at 7 MHz. The VCO is a varicap-controlled FET LC oscillator with an emitter-follower buffer. The amplifier is a pair of cascaded MSA-0404 MMICs. I'm not going to describe these two modules in greater detail because I recommend using a commercial VCO such as the Mini-Circuits POS-300 instead. This can be mounted adjacent to the first mixer. Imagine this test with any other mixer types like DBM (diode mixers). Mixer’s performance AM sensitivity is describing with signal in mV at mixer input which will produce unwanted signal at noise level (MDS).Good values for mixers are 5-10mV or signals S9 plus 50-60 dB at mixer input. Solution for this problem is utility of better linearity ... Output of this circuit is designed to drive an SA612 Audio Detector. The PCB is designed to use either the MC1350 or the higher gain MC1349. Only the MC1350P is included with the kit. Install/Solder all capacitors, sockets and resistors. Wind 2 turns using the 30 GA red wire and 6 turns using the 30 GA green wire on a BN-43-2402 binocular ferrite. Ne602 vs sa602. 10 on page 25): Aug 26, 2014 · If you are an individual home-brewer in the continental US who could use some of these SA602 SMT IC’s (which are exactly the same as NE602’s), send me an e-mail – either to my e-mail address on QRZ, or to [email protected] SA612.asc (6.13 KB, 1070 ... The model I used for SA612 mixer and an ss is attached. ... the question is how to do this from datasheet without modeling a circuit. Pete showcased a nice simple rig on his web site that used a pair of SA612's in a bilateral circuit with one as the tx/rx mixer, and the other as the product detector / balanced modulator with relay switching of the IF filter between the inputs and outputs of the mixers. The SA612 is a poor performer in the RX mixer position under strong signal ... The circuit employs the 8 pin Signetics balanced mixer IC (NE602) which converts the incoming RF signal to the standard 455 Khz IF signal and provides about 13dB gain. The IF signal is amplified by a single transistor stage and audio is recovered using a biased shotkey diode (5082) and JFET buffer transistor. Jan 26, 2015 · Modifications to a Kits and Parts mixer board. This will allow use of an external vfo input to the SA612. An explanation of mixers and image frequency is also displayed. Sa612an Integrated Circuit Dip-8 'uk Company Since 1983 Nikko' For Sale Online. ... Sa612 Ad. Sa612 Ad - Sa612ad Soic-8 Mixer Ic Smd Version Of Sa612 - Ne612 - New ... Jul 27, 2012 · Posts about NE602 Receiver written by AA7EE. When 4SQRP brought out a version of the David Cripe NM0S-designed Hi-Per-Mite Filter, I noticed that it could be configured to give up to 50dB of gain. 3.7 RECEIVE MIXER Signals from the antenna are applied to a bandpass filter formed with two transformers T2, T3 and capacitors C50, C51 and C52. The antenna is link coupled to T2 while the output is fed from a tap on the tuned primary winding of T3 to for improved impedance matching. The mixer U5 is another SA612. electronic circuits can be built by pulling catalog circuits from ... Figure 3 below is an offset PLL with a mixer. ... SA612.01 1.1 10 (+5V) 2 8 4 5 376 100 100 9.83 ... Jun 11, 2009 · This long story will prove that NE602 = SA602 = NE612 = SA612 (for those of you who don't want the gory details -hi) The original NE602 was designed/manufactured by SIGNETICS for the 45MHz FM wireless telephone market. A little later, the wafer was redesigned a bit to allow the internal oscillator to operate to 200MHz and the RF to 500MHz. Figure 4 is the circuit for the 24 MHz up-converter. A parts list for the project is shown in Figure 5. Most parts for the receiver are readily available from sources like Mouser, Digi-Key, and Jameco. The SA612 is the only chip in the circuit, and is used for mixing and local oscillator functions. Integrated circuit for low power communication systems from 800-1200 Mhz. The receiver consists of a single balanced mixer with four bipolar transistors. Ñêà÷àòü øðèôò Blur áåç ðåãèñòðàöèè, ïðàìàÿ ññûëêà íà øðèôò Blur.ttf, âåðñèÿ 1.0, ðàçìåð ôàéëà 30.04 Êáàéò mixer is operating from ±5 V supplies or ac coupled when oper-ating from a single-supply of 9 V minimum. The mixer operates with RF and LO inputs as high as 500 MHz. The mixer’s IF output is available as either a differential current output or a single-ended voltage output. The differential output is Figure 4 is the circuit for the 24 MHz up-converter. A parts list for the project is shown in Figure 5. Most parts for the receiver are readily available from sources like Mouser, Digi-Key, and Jameco. The SA612 is the only chip in the circuit, and is used for mixing and local oscillator functions. Modern receivers use integrated circuit frequency synthesizers to generate VFO signals anywhere they like. Sometimes modern HF receivers escape from artifact images and harmonics by using an IF frequency way up in the VHF range. In addition, after the initial mixer stage, The VCO is a varicap-controlled FET LC oscillator with an emitter-follower buffer. The amplifier is a pair of cascaded MSA-0404 MMICs. I'm not going to describe these two modules in greater detail because I recommend using a commercial VCO such as the Mini-Circuits POS-300 instead. This can be mounted adjacent to the first mixer. The Mini-Kits EME205 9MHz BFO Demodulator Kit is part of a building block to construct a high performance M1 Series HF Transceiver. The module board is designed as a 9MHz I/F SSB and CW demodulator, and uses a SA612 Gilbert Cell Mixer to demodulate the 9MHz I/F down to a filtered audio output. 4X SA612AN QRP CIRCUITS (REPLACES NE602, 612) $8.79. Buy at Ebay. ... 10 piece-sa612ad Philips so8 Double Balanced Mixer + Oscillator sa612 SMD 10pcs. $11.89. Buy at ... Ne612 - ci.trovabio.it ... Ne612 Jun 11, 2009 · This long story will prove that NE602 = SA602 = NE612 = SA612 (for those of you who don't want the gory details -hi) The original NE602 was designed/manufactured by SIGNETICS for the 45MHz FM wireless telephone market. A little later, the wafer was redesigned a bit to allow the internal oscillator to operate to 200MHz and the RF to 500MHz. Ne602 vs sa602. 10 on page 25): Aug 26, 2014 · If you are an individual home-brewer in the continental US who could use some of these SA602 SMT IC’s (which are exactly the same as NE602’s), send me an e-mail – either to my e-mail address on QRZ, or to [email protected] … a demodulated FM signal at the output of the multiplying circuit (e.g., NE602 , SA612, or MC1496). Also note that C1 is generally 10 percent or less of C2. … voltage-controlled oscillator is simply an oscillator whose frequency can be changed by applying a control voltage.