Questions tagged [transceiver]
For questions about devices that are both transmitters and receivers.
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How can I design a CAN BUS hardware interface for STM32? (TTL and CMOS issue)
I am designing a PCB based on STM32F446 and I want to include CAN BUS communication. I know I need a transceiver (from CAN_H and CAN_L to TX and RX) and a CAN Controller. I have thought about MCP2551 (...
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Kenwood transceiver output to amplifier buzzes when connected [closed]
My fire department uses a Kenwood TK690-H as a base radio. The system was used to (poorly) power 3 in ceiling speakers throughout the station.
Recently, I rewired the paging system in the station with ...
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What chip is this? I suspect it's a CAN transceiver
I couldn't find this part number after googling.. both chips appear to say:
NXP
A42/3C
EVG000 (or EV0000)
nD921
but it's hard to read. Here's a pic below. I'm guessing they are the NXP TJA1042, ...
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What conditions can cause a PCB fuse to fail and act as a resistor?
Context: Tx circuit that shoots 24V pulses into a transformer to get 240V out of it. The purpose is to drive a piezoelectric transducer.
The circuit itself has a fuse protecting it at the entrance (...
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CAN bus fault protection
Question:
Is there a way to implement with discrete components the 70V CAN bus fault protection found in some transceivers, such as TCAN1051H-Q1?
Background:
We are using the CAN transceiver ...
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Ethernet 100 BASE-TX Question
I'm using this Ethernet transceiver PHY to study the working of the RGMII interface.
I just want to understand 2 things.
1. What would be the output and input differential voltage levels on the pins 2,...
user220456
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voltage translation 1.8V and 3.3V using passive/active components
I have a chip that operates on 1.8V Vcc and has a digital interface I2C that also obviously outputs 1.8V signals and receives 1.8V signals. The datasheet says anything above 2V on VCC or digital input ...
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Horrible buzzing on custom car bluetooth
I've got an older vehicle that is wired for a CD changer. I'm using a few components to trick it into playing Bluetooth.
Components
MCP2025
Transceiver for car's LIN bus
Regulates voltage (>12V ...
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Troubleshooting CANbus 2B comms on ESP32-WROVER-based custom PCB (ABOVE WARN, ERR PASSIVE, BUS ERROR)
I am building an ESP32 WROVER-based custom PCB which includes CANbus 2B communications. This PCB is a copycat of my breadboard project.
Though on my breadboard version, the CANbus works like. charm, ...
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CAN bus termination resistor
I'm trying to design a CAN device where the user can select which device is the beginning/end device and activate the 120 ohm resistor accordingly. I've seen some examples using a switch, but I'm ...
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Intra Pair Length Mismatch Tolerance For 12.5Gbps signals
I'm making a high-speed transceiver design and want some direction regarding layout of trace length from P to N. The speeds will be up to 12.5Gbps. I have been informed by a equalizer manufacturer ...
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RFM69HCW Digital IO connection setup
I'm working to setup an RFM69HCW transceiver with an ARM microcontroller. I've read over the datasheet for the RFM69HCW and I see that DIO0 is the interrupt signal, so I've broken that one out, but ...
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RS-485 communication with slave microcontrollers driving addressable LEDs?
I am trying to figure out how to achieve the master-slave configuration shown below.
The aim is to individually address an array of 150 mA LEDs, driven by the IS31FL3265A PWM driver. For this specific ...
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Maxim MAX3485ESA+T vs SP3485EN-L/TR
I have a question about the MAX3485ESA+T RS485 Transceiver.
I ordered a PCB with a MAX3485ESA+T and the project doesn't work. The previous design was with a SP3485EN-L/TR and it worked well, but I had ...
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