The driver is compatible with 3 3 5 0 v cmos logic is decoded 2 channel outputs to supply each bias line with up to 100 ma current to forward bias the shunt diode and 100 ma and 5 to 30v to bias the series diode.
Pin diode switch driver.
Since the anode side of the pin diode switch is connected to 12v 588v of reverse bias 600v 12v is applied to the.
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The bias circuit typically uses a low pass filter between the rf circuit and the switch driver.
Thin film metalization on ceramic substrates ensures low parasitic capacitance for fast switching small size and excellent reliability.
It is capable of deliver ing peak currents in excess of one ampere at speeds up to 10 mhz.
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.
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.
Inputs are compatible with standard logic families.
Microsemi s product line of pin diode switch driver modules is designed for use in applications where gaas or fast speed si pin diodes are utilized.
This article demonstrates how the dh0035 may be applied to driving pin diodes and comparable loads which.
Qsk 5 pin diode switch driver in off mode.
Figure 5 shows a single pole double throw spdt rf switch and its bias circuit.
References 1 2 provide a fuller treatment of this subject and can be used as a basis for rf switch switch driver interface designs.
Standard switch driver data sheets.
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The back bias voltage can be selected to be any voltage between 20 v to 50 v.
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The madr 009150 switch driver is designed to work with macom s high power and high voltage pin diode switches.
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Pin diode drivers introduction the dh0035 dh0035c is a ttl dtl compatible dc coupled high speed pin diode driver.
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The 99214 is a driver featuring high speed and wide negative and positive voltage range suited for driving pin diode switch.
This driver has complementary outputs which can provide up to 200 ma bias current to a spdt pin diode switch.
Once the high voltage switch is turned on current flows from the 600v supply through the transistor and then through the 10k ohm resistor to the cathode side of the pin diode switch.
Pin diode drivers api technologies offers a complete line up of pin diode switch drivers with output current capability of 10 ma to 50 ma and switching speeds as fast as 6 ns.
