RF Transistors Forum Discussions
BAS 52-02V,hand soldering,any good advice and steps to take,thanks!
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Show LessHello everybody, I have a few questions about Low Noise RF Transistors. Because I was looking for a small input amplifier for SiPM (Silicon Photomultiplier), I designed a common-base amplifier. The model is. BFS17WH6327XTSA1 and BFR182E6327HTSA1. The circuit diagram is shown below.
Figure 1
1. When I remove c26 and R21, power the circuit, no signal is plugged in, and self-oscillation occurs.
Figure 2
2. When I design an 8-channel circuit, the outputs of the 4 channels on the left are drawn and the outputs of the 4 channels on the right are shown in Figure 3. A SIPM ARRAY WAS TESTED WITH THE CIRCUIT AS SHOWN IN FIGURE 4. THE SIGNAL OF EACH LINE OF THE DEVICE IS DIVIDED INTO TWO OUTPUTS, SUBJECT INPUT TO THE LEFT AND RIGHT CHANNELS AS SHOWN IN FIGURE 5. When the 8 channels are all output suggestions, put on the SIPM but do not power it, and the power supply to the circuit will shock. As long as the output is less than or equal to 7 channels, there will be no oscillation, as shown in Figure 6
Figure 3
Figure 4
Figure 5
Figure 6
Is this a problem with the circuit problem or the PCB design?
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Show LessI recently purchased a BFR182WH6327XTSA1 RF transistor. I intended to use it for switching at the output terminal of an FPGA. I chose it based on its 8GHz spec, aiming to support my system's communication speed of 110MHz and 110Mbps. However, it's not performing as expected. Could anyone provide information on this product's switching time, such as rise and fall times? Also, I've noticed RF transistors' datasheets often don't include switching time details, unlike through-hole transistors. Is there a specific reason for this?
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Show LessI'm designing an RF pre-amp for an SDR radio 0-500MHz and used the NE46134 which is now obsolete.
If anyone knows a drop in replacement, or functional replacement, please let me know.
Thanks
Show LessI would like to ask, what is the difference between BFP840ESD and BFP840FESD? What does an F mean?
There is only a difference in the conversion frequency and noise coefficient between the two on the data sheet, and the packaging is different. What are the other differences
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Show LessI wanted to check what suffix H6327 stand for in part number BAT6405W H6327
and if there is any link to this in the Infineon website for future reference, Thank you
Show LessHello everyone,
I am working on my master thesis project developing a high frequency (<3 GHz) photodiode amplifier, and was wondering if someone could supply me with the PCB design files of any of the BFP dev boards. Unfortunately, distributors don't seem to have them in-stock, and I am planning to use it as a template to give me a head start and save me some time.
Best regards!
Show LessHow can I increase the RF communication distance without an amplifier? What parameters can improve its communication distance?