Electrical Engineering

Questions tagged [transceiver]

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For questions about devices that are both transmitters and receivers.

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30 views

Using EEPROM for transceiver data communication in Tx and Rx mode?

I am planning to use EEPROM (ST-M95640-DF) in between Transceiver IC (ST-S2LP) and the MCU (STM32L152RE). I would put program commands in a read-only section of the EEPROM to be accessed easily. Now ...
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2answers
90 views

Designing mil-std-1553 transceiver [closed]

I need to design a mil-std-1553 analog front end transceiver to already designed digital 1553 ip for my ms thesis. So I need to convert digital 3.3V to analog specs level and receive and convert to ...
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23 views

Directly connecting a transceiver and DAC

I have an application where I need to take data over a standard transceiver (such as shown here: https://ii-vi.com/product/100g-cwdm4-2km-gen3-qsfp28-optical-transceiver/) and have that data drive a ...
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1answer
53 views

433 MHz Transceiver - understanding OOK demodulator parameter 'OokFixedThreshold'

I would appreciate some help to understand a parameter for this device https://www.semtech.com/products/wireless-rf/fsk-transceivers/sx1231h. I'm far from an expert at RF matters and this question has ...
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1answer
83 views

Difference between PCS and PMA loopback in transceivers

Can someone let me know the difference between PCS and PMA loopback used in XILINX transceiver IBERT testing.
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36 views

Isolated dc dc converter

What is the best way (low cost) to obtain a 5v isolated output from 24v batt? The 5v isolated is only for power transceivers so not to much current output is required
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2answers
64 views

Gigabit transceiver with MHz reference clock

I've some experience with Xilinx FPGA generating 10Gb/s over SMA loopback with on-off keying modulation (what scope shows) to perform BER test but the documentation shows it uses a reference clock in ...
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28 views

Normal Mode of CAN Controller in STM32L476 Nucleo Board is Not Working

I am using STM32L476RG Nucleo board which contains only one CAN controller(bx_CAN1) and SN65HVD233 as a CAN Transceiver. I could able to test the CAN controller by using "LOOPBACK Mode". ...
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0answers
49 views

TTE low frequency radio transceiver

I'm interested in developing a bespoke through-the-earth (TTE) radio transceiver for a measurement instrument in a limestone cave system. The issue I have is that conventional RF signals cannot ...
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2answers
57 views

SN65HVD232: Will it work if VCC = 5V?

Datasheet - SN65HVD232 Full part no - SN65HVD232D My schematic - Hi all, there is a problem in my PCB where 5V track is connected to VCC pin instead of 3.3V. Actual input should be 3.3V as per ...
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1answer
33 views

LIN transceiver instability problem

I'm using the MCP2021A for my project. In this component, there is a voltage regulator but I have no use for it. They usually power microcontroller like the PIC18F2455 but I'm using a Raspberry Pi ...
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57 views

How is a CAN Transceiver's common mode voltage range extended?

The CAN Standard states a max. common mode voltage of -2 V to +7 V. There are transceivers however, that allow for e.g. +-25 V common mode voltage range. How is that acheived? I imagine (I do not ...
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56 views

What does a transceiver like MAX 483 do, especially when it is connected to RS-485?

I cannot understand the principle that the transceiver uses. Why do we need to connect it to RS-485, and how is the data transmitted? I mean how does it transmit the data and why? It is like I cannot ...
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34 views

How does the DAC function within this circuit? How does the transceiver work in this case?

I have this circuit which I have to study but I don't know how the DAC circuit works when combined with the other components. I understand the functioning of the DAC but not that of the other ...
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36 views

Low Duty Cycle (LDC) Mode Issues on RF Transceiver

I am experimenting with Low Duty Cycle Mode (periodical sleep and active state transitions to reduce average power consumption) on the SPSGRF-915 RF Transceiver, based on the SPIRIT1 RF Module, which ...
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1answer
257 views

Conversion SSI to SPI

I want to interface an encoder based on the SSI interface with a microcontroller and only an SPI interface is available (I can't use other interfaces than SPI). As far as I see, SSI has a lot in ...
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2answers
51 views

CAN transceiver interface with two CAN BUSES

I would like to use the NXP TJA1046/TJA1048 dual CAN transceiver to connect to two CAN BUS. I would like to mux the TX1/TX2 and RX1/RX2 and connect them to single TX/RX interface on the MCU. In order ...
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1answer
124 views

How to design Power Line communication with line transceivers?

I am trying to design a communication system that will send data signals over a 400V DC voltage line by using line transceivers. I attached the LTspice schematics below. The transformer is for ...
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1answer
50 views

withstand voltage of RS-485 Transceiver

i am working with a half duplex RS-485 Transceiver ic SP3485EN with 10Mbps Data Rate datasheet :https://www.maxlinear.com/ds/sp3485.pdf i actually want the maximum working voltage (Viom) of design ...
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263 views

MCP2551 with STM32 MCU

im learning about the CAN protocol, and bought the transceiver module MCP2551 like this: I made the driver for CAN controller first in loopback mode for debug, im sending the numbers 1,2,3 and 4 with ...
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1answer
49 views

Are Dual Bus Transceiver or Analog Switch best practice to manually switch between SPI devices?

I have two different use cases for 4 lines (this could be an SPI bus or other digital signals). The goal is to manually switch all four lines between the two different use cases with just a single ...
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1answer
167 views

ISO 9141, LIN Bus, K-Line compatibility

I'm designing an automotive scan tool. For now, I'm studying about ISO 9141 and LIN Bus physical layer compatibility. I have a legacy hardware that uses L9637 to perform ISO 9141, through K-Line, but ...
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2answers
95 views

SFP+ 10GbE Module Interface

I'm in the process of learning about how SFP+ modules work under the hood. I chose a 10GBASE-T transceiver module as my case study. The module I chose is said to be complaint with SFF-8431 spec, so ...
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0answers
30 views

Sending Serial Data via CAN transciever

I am required to transmit a standard Hex payload through serial com port to a device that has a CAN transceiver. The serial configuration is as follows: 500 kbps, 1, 8, None, 1. The DUT has a CAN ...
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44 views

Compatibility and Interoperability Between CAN Standards

I'm intended to design a CAN system for a automotive scan tool. So, I need to comprise the main CAN standars used nowadays. Searching on the web I found the following options: ISO 11519-2:1994 – Low-...
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1answer
43 views

Transceiver Supply isolation with Transformer

I need to supply the Vcc2 for 2 different transceivers, one for the CAN-BUS, like the ISO1042-Q1 that have a Vcc2 of 5V, and another one (not yet defined) with a Vcc2 of 3.3V. On my PCB I have both ...
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2answers
74 views

Data Transfer without Transceiver on FPGA

While going through the transceiver component on an FPGA, I realized that data transfer can take place without transceivers as well, although the speed would reduce or in other words, as tasks ...
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1answer
49 views

Can I use SFP+ like just data cable?

i'm using zc706 (xilinx) eval board. I want to connect ZC706 and custom board for transcevier. The zc706 board has SMA, SFP+ connector for GTH trancevier. Can I use SFP connector for just cable with ...
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1answer
200 views

CAN Transceiver Interconnection to MCU (Tx, Rx and Propagation Delay)

I am working on CAN Transceiver and its connection to Micro controller (Hardware Perspective only). Referring this AppNote - What is CAN? My questions : In the above image, I see CAN transceiver ...
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2answers
253 views

Is there hardware compatibility between CAN 2.0 High Speed, Low Speed and CAN-FD?

I am studying CAN interface hardware for the design of an automotive scanner. So far, I have identified the following types of CAN: CAN 2.0 High-Speed: bit rate up to 1Mbps CAN 2.0 Low Speed: bit ...
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1answer
154 views

10GBASE-R 64B/66B Encoding/Decoding Unusual Control Block Formats

I need to design a 64B/66B decoder on receiver side of the GTY transceiver. Currently, I get 2 bit header and corresponding 64 bit descrambled payload at positive edge of every other clock cycle. So ...
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1answer
184 views

What is the purpose of these components in an LC Balun?

I'm trying to understand an antenna impedance matching / balun network that I came across in the receiving signal path in the schematics for the STEVAL-FKI868V2 S2-LP Evaluation Board, shown in the ...
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2answers
133 views

Rogue resistance between Vout and GND in LDO circuit

I'm currently developing a circuit as seen here:. I had some suggestions to check my Iout to ensure that I wasn't drawing so much current that I was causing an overheat. After a little checking I ...
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1answer
41 views

Generate high speed data using GTX transceiver of Kintex-7 FPGA board

I want to use Genesys-2 FPGA board as a BER tester for transceiver circuits. I am using IBERT IP core available in Vivado for it. Genesys-2 has an FMC connector to provide output for which I am using ...
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4answers
150 views

Voltage Regulator Overheating

I'm currently designing a simple PCB that uses a MAX3221 to send/receive RS232 over an ethernet cable along with an optional 1-wire thermocouple reading (The thermocouple breakout can be soldered in ...
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1answer
42 views

Need suggestion on 2 channel transceiver 5V to 3.3V level shifter

I need to Interface multivibrator output to control input of the analog switch. Where the maximum operating voltage of analog switch is 3.6V. So I need voltage level shifter from 5V to 3.3V. And the ...
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2answers
149 views

Can you use a CAN FD transceiver for low speed (fault tolerant) CAN?

Fault tolerant CAN (ISO11898-3) is terminated differently than high speed CAN (ISO11898-2). Therefore the signal levels for dominant and especially recessive bits differ. Newer CAN FD compatible ...
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1answer
366 views

How does a CAN transceiver work?

CAN Transceiver Transmit Mode I try to understand the transmit functionality of a CAN transceiver. I found this post a good starting point, but it doesn't completely answer my question. Block ...
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1answer
75 views

How to generate positive and negative power supplies from a single supply with high current driving capability?

I am trying to build a 1553 military standard bus transceiver (analog front end) and I am required to use a single power supply of 3.3 V. To be able to receive, my comparators need supplies of +/- 3.3-...
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1answer
54 views

Connecting CAN transceivers for devwork /home prototyping

I'm doing some home project, and would like to use this CAN transceiver (note just in case, not selecting CAN controller+transceiver chip, that's how I need it). I would like to use this transceiver ...
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1answer
84 views

RS-232 to RS-485 transceiver

I'm new in communication protocols and ICs. I would like to know if it is possible to connect a RS-232 (TX, RX and GND) to a RS-485 (Vcc, A, B and GND). I only need a half-duplex communication. The ...
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28 views

LTC2852HDD Transceiver defect when the polarity is change

I have been unsing the above transceiver for our application. I have discover that when I turn the polarity of this device, the Transceiver does not work anymore or is defect, because taking back in ...
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1answer
69 views

Gearbox in 10GBASE-R Ethernet protocol

In 10GBASE-R specification, Gearbox is defined to take care the data width adaptation between PCS & PMA. For example, after the 64b66b encoding, the PCS data width will become 66bits. The gearbox ...
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1answer
92 views

Passing <5V through bus of tri-state transceiver

I am following a schematic which implements a basic 8-bit register. The schematic is pictured below: According to the datasheet of the 74LS173 chip, The high-level output voltage is 2.4V with testing ...
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1answer
564 views

74LS245 octal bus transceiver doesn't transmit bus

I'm doing a bit of testing with the SN74LS245 IC which is an octal bus transceiver. According to what I understand in the datasheet and the given truth table, pulling the DIR (pin ...
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2answers
152 views

Termination between driver and transceiver

I have the following line driver and line transceiver driver: 74VHC244 transceiver: 74VHC245 They're connected via a 0.5m long ribbon cable with an impedance of 100Ohm. The digital signals have a ...
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1answer
97 views

Will SN74HC245N transceiver support TTL RX when blocked?

I'm actually designing a system with: ~10 "Master" boards that transmit data from slaves boards to a RS485 network 4 "Slave" boards per master one, connected trough a 3 pin jack (5V, GND and half-...
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0answers
20 views

USB transceiver or Boot loader [duplicate]

I am doing one hobby project, using STM32F103R8T6 Micro controller for my project, now I am using JTAG pins to program the controller. I will keep on modifying the firmware for my project, in this ...
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1answer
76 views

USB transceiver helps me to update firmware program to microcontroller via USB interface?

I am doing one hobby project, using STM32F103R8T6 Micro controller for my project, I would like to use USB transceiver for this micro controller, does this helps me to update my firmware program ...
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2answers
364 views

Isolated CAN transceivers as a CAN bus extender

I am designing a system to 'hack' into a CAN bus. My first idea was to split the target CAN bus, terminating both ends into isolated CAN transceivers, and use a MCU to pass packets between the buses ...

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