This article demonstrates how the dh0035 may be applied to driving pin diodes and comparable loads which. Every pin diode in a switching circuit has an accompanying pin diode driver or. Minicircuits zsdr425bb coaxial switch 50w sp4t pin diode,reflective ttl driver 102500 mh. In this case a series mounted diode is used in each arm of the switch. Sp8t rf pin diode switches to 12 ghz pulsar microwave. The sky12245492lf is a compact, integrated highpower singlepole, double throw spdt pin diode switch with driver circuit for tddlte and similar. Pin diode sp4t switches from pasternack are most commonly used in rf. Pin diode switches 77 ghz sp4t and sp10t pin switches. Miwaves 911 series pin diode switches or mmic switch is a spst 912 series is spdt reflective switch that combines low loss, high isolation performance with an tegra ttl driver in a compact package. Rf measurements are compared with those of the same device driven by bipolar voltages. With a standard 5v, ttl controlled, pin diode driver, 50ns switching speeds are achievable.
Ma4sw410 datasheet26 pages macom sp4t monolithic pin. Quad driver for gaas fet or pin diode switches and attenuators, spdt pin. Sp4t octave and broadband pin diode switches mcli also offers high speed switching solution through our pin diode switch line. This model offers a typical insertion loss of 5 db and 60 db porttoport isolation with a typical switching speed of 100 nanoseconds. High power monolithic microwave surface mount mmsm seriesshunt pin diode sp2t reflective switch. Model sk455365365351515r1m is a pin diode based, single pole, four throw sp4t reflective switch with a ttl driver that operates between 55 and 65 ghz. Switches, coaxial, spdtsp4t withwithout ttl drivers, dc to 6 ghz. The mercury syetms pin diode sp4t switch family spans the frequency range of 0. Monolithic pin sp4t diode switch masw0041001193 rev.
Thermal transfer is optimized by elimination of the traditional package interface. Figure 5 shows a singlepole doublethrow spdt rf switch and its bias circuit. S2079 drivers for gaas fet switches and digital attenuators. Dsdsser ds series decoded slow 50 nsec pin diode drivers 27 kb rev 111998. Sp2t, sp3t, sp4t, sp5t and transfer switch, in a wide variety of frequency. V4 masw00410212760 3 macom technology solutions inc. Pin diode drivers introduction the dh0035dh0035c is a ttldtl compatible, dc coupled, high speed pin diode driver. Pin diode drive circuits optimized for fast switching. Infineon pin diodes come with low loss and low distortion levels and are suitable for a wide range of mobile communications and rf applications. Model sk42734035540kfkfr1 is a pin diode based, single pole, four throw sp4t reflective switch with a ttl driver that operates between 26. Usb, ethernet, and spi control interfaces available. Model sk450375365351515r1m is a pin diode based, single pole, four throw sp4t reflective switch with a ttl driver that operates between 50 and 75 ghz.
Pin diode and gaas fet switches cobham advanced electronic. Model cp4t77303030d2 and cp10t77308030d2 are pin diode based sp10t and sp4t switches that operate at the rf frequency range from 75 to 78 ghz. Connecting the switch driver control circuit to a pin diode such that it can turn diodes on and off by applying a forward or reverse bias is a challenging task. High quality signal switching in the 60 ghz ism band.
Ma4sw410 datasheet16 pages macom sp4t monolithic pin. Spdt, dpdt transfer, sp4t, sp6t, sp8t, and sp10t mechanical and solid state rf switches for 50ohm and 75ohm systems spanning dc to 40 ghz. Sk42734035540kfkfr1 waveguide switch single pole, four. They offer both high performance and integrated high speed driver controlled. The 4way series of absorptive and reflective switches operate from 100 mhz to 16 ghz. L3 nardamiteq designs and manufactures a broad line of digital pin diode switches covering multioctave bands from 80 mhz to 44 ghz. Switches, surfacemount, spstspdt sp4t sp6t, 50 ohms, dc to 6. Solidstate switches with extremely fast switching times. Sp4t rf pin diode switches to 16 ghz pulsar microwave. The approach is applied to a commercial sp4t switch. These switches are offered with a builtin ttl driver to simplify the channel switching and to reduce the switching time. References 1,2 provide a fuller treatment of this subject and can be used as a basis for rf switch switch driver interface designs. The sky12208478lf is a high power handling, singlepole, doublethrow spdt silicon pin diode switch. Part number brand min freq mhz max freq mhz insertion loss db isolation db iip3 dbm ip1db dbm compare cart.
Pin diode driver circuits are a pain to design and build. Because of the complexity of designing a highspeed current driver circuit, the fet switch typically has an advantage in switching speed as well. Pulsar microwave manufactures 8way absorptive and reflective rf switches in singlepole 8throw configuration. The dc and logic control ports are accessed via a single molex miniature. When the diode is reverse biased the switch arm is off.
Mercury systems pin diode switch family spans the frequency range of 0. Units can be customized for your application with offerings of various isolations, switching speeds, size configurations and even matched phase and amplitude. Low loss, low cost, discrete pin diode based, microwave. The bias circuit typically uses a lowpass filter between the rf circuit and the switch driver. Rf pin diode sp4t switches are passive devices that route a high frequency signal through a set transmission path. Sp4t pin diode switch designs feature excellent insertion loss as low as 1 db, isolation levels up to 75 db, and fast switching speed levels as low as 100 nsec.
Pin diode switches spdt switch spst switch low prices. External negative supply voltages may be as high as 18 volts. This will be followed by a section concerning the pin diode driver. Pindiode spmt switch with singlesupply, ttlcompatible driver. Spdt, dpdt transfer, sp4t, sp6t, sp8t, and sp10t mechanical and solid state rf. This process allows the silicon pedestals which form the series shunt diodes and vias to be embedded into low loss, low dispersion glass. Sk42734035060kfkfa3 is a ka band absorptive pin diode based, single pole, four throw sp4t switch with a ttl driver that operates between 26. Were open for business, and here to support your needs. The 999 is a driver featuring high speed and wide negative voltage range suited for driving high speed pin diode switches. This model offers a small form factor by integrating the switch and driver into a common housing and achieves a low insertion loss by minimizing high loss transmission.
The sp8t switches have an isolation of 60 db and switching time of 100 ns. The sp4t pin diode switches from panda microwave is a pin diode based, single pole, four throw sp4t reflective switch with a ttl driver, while our complete line of switches cover frequency ranges up to 40 ghz. Ultrareliable mechanical switches capable of extended life up to 10million switch cycles. The sky12245492lf is a compact, integrated highpower singlepole, doublethrow spdt pin diode switch with driver circuit for tddlte and similar. Sp4t pin diode switch operating from 500 mhz to 40 ghz up to 0. Hmic silicon sp4t pin diode switch with integrated bias network rev. Rfmicrowave switches spdt, dpdt, sp4t, sp6t, sp8t, sp10t. High reliability sp4t pin diode switches fairview microwave. Dsucser ultracompact series ultracompact pin diode drivers 52 kb rev 112098.
Dsdfser df series decoded fast pin diode drivers 27 kb rev 111998. They are rated at 200 mw maximum input power and have a switching time of 100 ns. Mcli pin diode switches are offered in many multiport models up to sp8t single pole eight throw that feature high isolation, low insertion loss, and. Sp4t rf switch ics are available at mouser electronics. This switch will allow us to deliver rf energy via an output of four and will be. Secondly, a section focusing on pin diode theory will be presented. When one of the diodes is forward biased, and so conducting a dc current, that arm of the switch is on. This series of diodes can operate up to 6ghz with highvoltage handling capabilities and together with outstanding rf performance, they simplify designin because of their extreme low forward. Sp4t pin diode nonreflective and reflective switches single pole four throw the cmik4 series of reflective and nonreflective single pole, four throw pin diode switches span the frequency range of. There are some great vendors out there that can supply you with many types of pin switch drivers commercial. Pin diode switches span the frequency range of 10mhz to 18ghz and are. Sp4t switches that operate up to 8 ghz have a maximum vswr of 1.
Macom and its affiliates reserve the right to make changes to the products or information contained herein without notice. Control options include solder pins or multipin connector. Impellimax pin diode drivers, linearizer hybrids, gaas. Metelics recommends the mpd2t28125700 pin diode driver for the msw2000, 2010, 2030, 2040 and 2050 series switches. We have extensive experience in switch design and development for critical space, telemetry, transceiver, radar, and ew applications. Mdt switch drivers contain internal spiking and decoupling capacitors. The ma4sw410 is a high performance switch suitable for use in multiband ecm, radar, and instrumentation control circuits where high isolation to insertion loss ratios are required. Hmic silicon sp4t pin diode switch with integrated bias. The technology is a packageddevice integration accomplished at the wafer level. It offers high perfor mance and an integrated high speed driver. High throw count 4t switches antenna switch modules asm. Pin diode sp4t switches frequencies from 10mhz to 20ghz all with high speed ttl driver available with variety of options small compact packages eccn. In this chapter theory surrounding pin diode switches and their use in rf and microwave applications will be presented.
Sp4t pin diode switch with ttl driver, reflective, 55 to. They fulfill broadband and narrowband requirements from 40 mhz to 12 ghz and handle 200 milliwatts input power. From 100 mhz to 24 ghz, any optimized bandwidth is available in absorptive or reflective models. Both absorptive and reflective designs are available and every model utilizes integrated ttl compatible high speed driver logic circuitry. Sp4t pin diode switch with ttl driver, reflective, 50 to. Pin diode sp4t switches from pasternack are most commonly used in rf, microwave and millimeter wave test systems for routing varying signals between instruments, allowing multiple tests to be performed at the same time using the same setup. These spdt switches are constructed using milgrade rugged coaxial packages and several models support field.
At low rf frequencies simple switch configurations, such as the spdt shown in figure 1, can be readily realised. Inputs are compatible with standard logic families. Minicircuits zsdr425bb coaxial switch 50w sp4t pin. The ma4sw410 is a sp4t, seriesshunt, broadband, pin diode switch made with macoms patented hmictm heterolithic microwave integrated circuit process. Design and simulation of a sp4t switch based on the pin. Our silicon heterolithic microwave integrated circuit hmic pin diode process is ideal for high power and broadband switches operating from 50 mhz to 26 ghz. Driver circuits for high power pin diode switches the information in this chapter is presented as a guide for the rf switch switch driver interface. The 2 to 18 18 pin diode switches offers low insertion loss and excellent vswr, high isolation that will help you achieve your.
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