Questions tagged [transceiver]
For questions about devices that are both transmitters and receivers.
251 questions
1 vote
1 answer
67 views
How to measure impedance when transceiver is connected to the PA/LNA instead of antenna?
I have the RF chain shown in the figure: The impedance between PA/LNA and antenna is easy to adjust: I connect a calibrated VNA to the PA/LNA side and tune until |S11| looks good. I do not know how ...
- 59
0 votes
2 answers
181 views
Transceiver input balun creates 90° phase difference instead of 180°
I am trying to understand how the balun is implemented from Samtech's SX126x transceiver Reference design application, which I think is the only of their documents that talks about it. It says: ...
- 4,314
4 votes
2 answers
699 views
High Throughput Interface between different FPGA vendors
Is there an industry standard Chip to Chip communication protocol that defines both the PMA and PCS layers ? For example, Interlaken is used for Chip to Chip communication - but from what I've read it'...
- 635
1 vote
1 answer
316 views
RS485 collision detection
Using the ADM2861E transceiver we want to detect RS485 collisions by reading the transmit echo (receiver is always enabled) and compare what was received to what was send. If not equal there may be a ...
- 131
0 votes
1 answer
104 views
What type of encoder would you use for a racquet stringing machine
I have a racquet stringing machine and would like to know what type of encoder that would be use to pull tension on a string
- 25
2 votes
1 answer
105 views
TLE6250 CAN transceiver didn't survive expected fault
I'm used to TI transceivers so I don't know if this is to be expected or not. I have a whole bus using these transceiver (five nodes). Now, the datasheet specifies: Suitable for 12 V and 24 V ...
- 9,036
0 votes
1 answer
234 views
How to connect multi-voltage transceivers in an RS485 bus?
I'm trying to design an ESP32C1-mini mcu based PCB (board 1). This PCB has an RS485 bus interface. As you know this mcu is 3.3V fed. So the transceiver I need should be 3.3V level compliant UART ...
- 891
-3 votes
1 answer
119 views
How have fiber optic bandwidths improved over time? [closed]
I want to build a sense of how fiber optic transceiver technology has improved over time, and what relevant physical limits constrain it in the limit. For instance, ChatGPT tells me that in 2010 ...
- 133
0 votes
1 answer
131 views
Piezo tr switch no echo signal
I set this circuit to use piezo as transceiver. I can perfectly transfer the transmitter signal (10 burst pulse) but as transmitter still connected onto piezo , any reveived signal is disappears. When ...
- 39
1 vote
0 answers
104 views
Piezo T/R switch
I try to use single piezo as transceiver. Is this possible if i can T/R switch using FET or BJT ? I found this schematich but not sure if it works. https://www.researchgate.net/publication/...
- 39
0 votes
0 answers
114 views
Using piezo as range sensor
My objective is to use a single piezo as a transceiver and calculate the distance between the sensor and the object that sound echos from using time of fly. I use ...
- 39
3 votes
2 answers
344 views
Sending arbitrary bitstream to SFP transceiver: minimum bitrate?
I'm trying to use a Small Form-factor Pluggable (SFP) as the laser source for a homebuilt laser gas analyzer, which means I don't actually care about transmitting data. The plan is to send an ...
- 51
0 votes
0 answers
79 views
How does CAN transceivers output CANH=3.5V and CANL=1.5V? [duplicate]
This is a questions that has been asked but did not find a clear answer. How it is the 3.5V achieved on CAN_H? Assuming there is 0.5V voltage drop on the internal diode, 0.1V on the internal MOSFET ...
0 votes
1 answer
351 views
Match 50 ohm impedance to LNA input impedance
I have following PCB version of circuit: on SMA input we have antenna strictly matched to 50 ohm, then we have regular RF switch IC, after RF switch impedance matching network and final stage is ...
- 65
0 votes
1 answer
220 views
Is GND connection required for two independent modules to communicate in MIL STD 1553 protocol?
I use a Holt IC 2130 MIL-STD-1553 transceiver. When I connect only the A and B differential lines in two independent modules, I can't communicate between the two modules, but when I connect the GND ...
- 824