Questions tagged [transceiver]

For questions about devices that are both transmitters and receivers.

Filter by
Sorted by
Tagged with
1
vote
0answers
64 views

How to create an RS485-compatible line driver with an adjustable slew rate?

I need to make an RS485 compatible line driver, capable of 12Mbit/s with fast slew rate, but with the capability to reduce the slew rate to about 50ns rise/fall time when operating at lower bitrates. ...
0
votes
0answers
10 views

Ethernet Transceiver Modem block scheme: 50:50 device in block scheme

This is a system architecture of the Optical Ethernet Transceiver Modem (OETM) which allows a bidirectional transmission of optical signals and electrical signals (Ethernet). Given an optical input ...
-1
votes
1answer
41 views

Invert signal from optical transceiver

I want to achieve electrically HIGH state in this receiver (Vo tag), when there is HIGH state in the fiber. What I get now is 5 V when there is no pulse in the fiber and 0.48 V when there is (RXVCC=5 ...
0
votes
1answer
24 views

force output on a MAX3232 RS-232 transceiver

I need to probe the output RX (DOUT1/2) nets (connected to one MCU's UART) of a MAX3232 RS232 transceiver, for this I'll use the PCB test points, but I'd also like to "force" logic levels on ...
0
votes
1answer
330 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 ...
0
votes
2answers
255 views

CAN transceiver Vref connection

I am using the TI SN65HVD230DR CAN transceiver on two separate CAN buses between three microcontrollers (MCUs) -- two are on the same board, and one is off-board. This transceiver includes a Vref pin:...
2
votes
1answer
58 views

Do P/N matter for Diff Pair Clock Inputs to FPGA?

I have noticed on a schematic for an FMC card that the differential pairs of a differential LVDS oscillator do not match the corresponding FPGA transceiver reference clock pins. I.e. the P/N are ...
0
votes
0answers
27 views

SPI Line Switching for Redundant Design

I am in the process of designing a full-duplex transceiver board. I am using an ATmega328pb uC and a CC1125 radio. This is for a CubeSat project, so in the interest of redundancy, I'm I would like ...
0
votes
1answer
31 views

AX5043 RF XCVR, problem making the automatic frequency control work in GMSK

I am working with the AX5043 RF transceiver from OnSemi. I am using GMSK, and I am unable to make the automatic frequency control (AFC) work properly. I am using a bitrate of 2400 bps. To be sure to ...
1
vote
1answer
266 views

Xilinx PCIe Integrated Endpoint - Using the other transceiver on the tile

This question is specifically about the Spartan 6-75LXT (FG676) but can be applied to any Spartan 6 (and possibly other Xilinx parts as well). When using the GTP wizard by itself, there are 2 pairs ...
3
votes
2answers
219 views

What is the simplest 100km RF communication link there is?

I am looking for a technology for sending sporadic bytes over RF hundreds of kilometers away - assume line of sight. What should I look into to do that? What frequency? What modulation? Perhaps what ...
2
votes
2answers
173 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 ...
0
votes
1answer
23 views

ENABLE and T/R pins on MAX7032 Tranciever

Last month I started working with electronics a bit. With no previous knowledge and I'm getting into PCB design for many different applications. That being said please correct me if I misinterpret or ...
2
votes
2answers
131 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 ...
0
votes
1answer
661 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 ...
1
vote
0answers
47 views

CAN Transceiver circuit problem with TJA1042T/3

I am a novice designer who recently started designing circuits. Using the STM32f407VGT MCU operating at 3.3V, using the CAN1TX(PB9) CAN1RX(PB8) pins, the circuit was configured by referring to NXP's ...
0
votes
1answer
68 views

SN75176 with 3.3V

Can I connect the SN75176 RS485 transceiver with a 3.3V microcontroller? The datasheet says that it must be powered with 5V and all inputs / outputs are TTL, but I'm not sure since the minimum high ...
0
votes
1answer
78 views

Transceiver IC for radar

I'm trying to build a radar that functions in the ISM bands (433 MHz, 915 MHz, 2.4 GHz and 5.8 GHz). I'm trying to look for RF transceiver ICs that operate in these bands. Most of the ICs I'm finding ...
0
votes
1answer
45 views

Data Oversampling Transceivers

I am trying to find more information about data oversampling for transceivers when grabbing/sending a lower speed signal. I am looking into building a fully compliant HDMI 1.4b fpga core, and have ...
1
vote
0answers
41 views

SMPS mode power supply for 868 MHz operation in S2LP

I am trying to design a PCB for 868 MHz operations using S2LP, referring to the schematic from steval fki868v2. I have attached the same here. I would like to use SMPS mode and BALUN for the operation....
0
votes
1answer
98 views

Can transceiver replace SPI, I2C and other "normal" methods for high speed data transfer between FPGAs? If so, how? [closed]

SPI, I2C and UART are some well known serial methods for data transfer between devices on the same PCB. However, they all have a data rate bottleneck which is significantly lower than Multi Gigabit ...
1
vote
0answers
44 views

Fiber optic transceiver for lower speeds

I am trying to figure out if a QSFP-DD transceiver can break out 8x 10G lanes if I make/use a 1:8 fiber optic breakout cable. It seems like most Transceivers are rated for one speed only, so if I get ...
0
votes
0answers
23 views

LIN bus extender

I have an application where the nodes may be 40m apart and want to make each node a repeater as well as an operating node with a microprocessor (PIC16F1829 say). Am thinking about two MCP2021A back ...
1
vote
1answer
62 views

Is my use of the L9637 iso9141 single-wire transceiver a robust design?

Eventually, I want to tap into the K-line of my Kawasaki Ninja with an (ISO 9141) OBD reader, using an ESP32 WROVER and a L9637 single-wire transceiver. To get there, I'm at the stage of confirming ...
0
votes
1answer
33 views

Phy transceivers query

Are phy transceivers like Ethernet phy, Wlan phy and USB phy transceivers digital or analog in nature? I referred to datasheets but it just shows transmitter and receiver as a block diagram, hence ...
0
votes
0answers
29 views

Lora sx1278 implementation by Arduino Uno

I'm implementing a Lora network, with two SX1278 modules and Arduino Uno. Lora is based on three classes. A , B and C, The question is : for change For example A to B, what should exactly change in ...
0
votes
1answer
109 views

CAN bus expander circuit

I am trying to design a CAN bus expander. In this case I could implement star topology of multiple buses in parallel. It would avoid having problems with reflections and delay. For this purpose I ...
0
votes
1answer
40 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 ...
0
votes
2answers
131 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 ...
0
votes
0answers
25 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 ...
0
votes
1answer
75 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 ...
0
votes
1answer
876 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.
1
vote
2answers
5k views

Is there a table that shows how 8b/10b encoding tries to ensure running disparity on a transmission line?

In telecommunications, 8b/10b is a line code that maps 8-bit symbols to 10-bit symbols to achieve DC-balance and bounded disparity. In this case we take each 8-bit data and map it to a 10-bit symbol. ...
0
votes
1answer
45 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
0
votes
2answers
99 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 ...
0
votes
0answers
137 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". ...
2
votes
0answers
114 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 ...
0
votes
2answers
92 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 ...
0
votes
1answer
63 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 ...
1
vote
2answers
67 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 ...
1
vote
1answer
161 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 ...
0
votes
2answers
91 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 ...
1
vote
1answer
846 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 ...
0
votes
1answer
59 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 ...
2
votes
0answers
500 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 ...
1
vote
1answer
571 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 ...
1
vote
1answer
117 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 ...
0
votes
0answers
53 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 ...
3
votes
0answers
60 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-...
1
vote
1answer
60 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 ...

1
2 3 4 5