RS-422 Differential Signaling (ISL8490, AdUM121N) – The Details (1/4)
First part, covering reflections, impedance matching and termination…
↓↓↓ Complete description, time index and links below ↓↓↓
In “The basics” (links below) we created a 1Mbaud RS-422 bidirectional, full-duplex, asynchronous serial connection between two Arduinos (ATmega USART/UART, Renesas ISL8490 RS-422 transceiver). But there’s a lot more to RS-422.
So in this first part of “The Details” we’ll talk about signal reflections, how they mess up your signal, and how to avoid them (impedance matching aka proper termination). At the end we go over the recommended RS-422 termination techniques.
00:00 Intro – termination, ground, galvanic isolation …
01:00 It’s terminated – what’s on the bench (recap of “The Basics”)
03:43 Without termination – signal distortions at certain frequencies
04:56 Reflected signal – at end of transmission line, phase relations
10:59 Impedance matching – of signal line with proper termination
15:06 RS-422 termination – the recommendations
19:09 Wrap-up – next up point to multipoint transmissions, bye
Tutorials Tutorials
RS-422 Differential Signaling (Renesas ISL8490, Arduino MCU) – The Basics (1/2) RS-422 Differential Signaling (Renesa...
RS-422 Differential Signaling (Renesas ISL8490, Arduino MCU) – The Basics (2/2) RS-422 Differential Signaling (Renesa...
RS-422 Differential Signaling (ISL8490, AdUM121N) – The Details (2/4) RS-422 Differential Signaling (ISL849...
FeelTech FY6800 60MHz Signal Generator Review Addendum II (Output Stage) FeelTech FY6800 60MHz Signal Generato...
RS-422 CableLength-DataRate by EE JRW - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index...
Texas Instruments, Application Report, RS-422 and RS-485 Standards Overview and System
Configurations http://focus.ti.com/lit/an/slla070d/s...
#rs422 #tutorials #tutorial #how-to #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
In “The basics” (links below) we created a 1Mbaud RS-422 bidirectional, full-duplex, asynchronous serial connection between two Arduinos (ATmega USART/UART, Renesas ISL8490 RS-422 transceiver). But there’s a lot more to RS-422.
So in this first part of “The Details” we’ll talk about signal reflections, how they mess up your signal, and how to avoid them (impedance matching aka proper termination). At the end we go over the recommended RS-422 termination techniques.
00:00 Intro – termination, ground, galvanic isolation …
01:00 It’s terminated – what’s on the bench (recap of “The Basics”)
03:43 Without termination – signal distortions at certain frequencies
04:56 Reflected signal – at end of transmission line, phase relations
10:59 Impedance matching – of signal line with proper termination
15:06 RS-422 termination – the recommendations
19:09 Wrap-up – next up point to multipoint transmissions, bye
Tutorials Tutorials
RS-422 Differential Signaling (Renesas ISL8490, Arduino MCU) – The Basics (1/2) RS-422 Differential Signaling (Renesa...
RS-422 Differential Signaling (Renesas ISL8490, Arduino MCU) – The Basics (2/2) RS-422 Differential Signaling (Renesa...
RS-422 Differential Signaling (ISL8490, AdUM121N) – The Details (2/4) RS-422 Differential Signaling (ISL849...
FeelTech FY6800 60MHz Signal Generator Review Addendum II (Output Stage) FeelTech FY6800 60MHz Signal Generato...
RS-422 CableLength-DataRate by EE JRW - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index...
Texas Instruments, Application Report, RS-422 and RS-485 Standards Overview and System
Configurations http://focus.ti.com/lit/an/slla070d/s...
#rs422 #tutorials #tutorial #how-to #robertssmorgasbord
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