Grzegorzbecker: /* Standard Equipment */

2025-03-01T16:34:12Z

Standard Equipment

← Older revision		Revision as of 16:34, 1 March 2025
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	\| style="text-align: center;"\|<b>KAmod Multiplexer</b>		\| style="text-align: center;"\|<b>KAmod Multiplexer</b>
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	* Assembled and ~~started~~ module		* Assembled and tested module
	* 1 x straight goldpin header 8-pin raster 2.54 mm		* 1 x straight goldpin header 8-pin raster 2.54 mm
	* 1 x angled goldpin header 10-pin raster 2.54 mm		* 1 x angled goldpin header 10-pin raster 2.54 mm
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	[[File:KAmod_Multiplexer_3.jpg\|none\|800px\|thumb\|center]]		[[File:KAmod_Multiplexer_3.jpg\|none\|800px\|thumb\|center]]
	</center>		</center>

	===== Schematic =====		===== Schematic =====
	<center>		<center>

Grzegorzbecker: Created page with "jzpdf ====== Description ====== KAmod Multiplexer - Analog, 8-channel digitally controlled electronic switch

[https://kamami.pl/en/Expanders-of-the-IO/1194868-kamod-multiplexer-analogowy-8-kanalowy-przelacznik-elektroniczny-sterowny-cyfrowo-5906623496150.html KAmod Multiplexer] contains the CD4051 circuit, which is an analog, 8-channel multiplexer/demultiplexer. The circuit can operate with analog signals with an amplitude of up to 20 VPP and provides..."

2025-02-28T08:33:05Z

Created page with "__jzpdf__ ====== Description ====== KAmod Multiplexer - Analog, 8-channel digitally controlled electronic switch [https://kamami.pl/en/Expanders-of-the-IO/1194868-kamod-multiplexer-analogowy-8-kanalowy-przelacznik-elektroniczny-sterowny-cyfrowo-5906623496150.html KAmod Multiplexer] contains the CD4051 circuit, which is an analog, 8-channel multiplexer/demultiplexer. The circuit can operate with analog signals with an amplitude of up to 20 VPP and provides..."

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__jzpdf__
====== Description ======
KAmod Multiplexer - Analog, 8-channel digitally controlled electronic switch 
[https://kamami.pl/en/Expanders-of-the-IO/1194868-kamod-multiplexer-analogowy-8-kanalowy-przelacznik-elektroniczny-sterowny-cyfrowo-5906623496150.html KAmod Multiplexer] contains the CD4051 circuit, which is an analog, 8-channel multiplexer/demultiplexer. The circuit can operate with analog signals with an amplitude of up to 20 VPP and provides low resistance in the on state. The active channel is selected by a sequence of states on 3 digital inputs. 
<center>
[[File:KAmod_Multiplexer_1.jpg|550px]]
[[File:KAmod_Multiplexer_2.jpg|550px]]
</center>
 

===== Basic parameters =====
* Power supply 3...20 V (single or symmetrical)
* Contains CD4051 chip
* 8-channel analog electronic switch: 8 inputs/outputs ↔ 1 input/output
* Can operate with analog signals with an amplitude of up to 20 VPP (however, the signal amplitude value cannot exceed the supply voltage on both the positive - VDD and negative - VEE, power supply rail)
* Typical resistance of the switched on channel is approx. 470 Ω with a 5V power supply and approx. 125 Ω at 15 V

 

===== Standard Equipment =====

<center>
{| class="wikitable" style="width: 1000px;"
|-
! style="text-align: center;"|Code
! style="text-align: center;"|Description
|-
| style="text-align: center;"|KAmod Multiplexer
| style="text-align: left;"|
* Assembled and started module
* 1 x straight goldpin header 8-pin raster 2.54 mm
* 1 x angled goldpin header 10-pin raster 2.54 mm
|}
</center>
 
<center>
[[File:KAmod_Multiplexer_3.jpg|none|800px|thumb|center]]
</center>
===== Schematic =====
<center>
[[File:KAmod_Multiplexer_sch.png|none|800px|thumb|center]]
</center>

===== Block diagram =====
The figure shows the operation of an 8-channel multiplexer/demultiplexer - the CD4051 circuit. Additionally, symbols corresponding to the markings on the KAmod Multiplexer module PCB have been added.
<center>
[[File:KAmod_Multiplexer_blok.png|none|500px|thumb|center]]
</center>
 
The INH signal is connected on the PCB to the power supply ground, thanks to which the Y input/output is always active.
 
===== Signal layout on the board =====
 
<center>
{| class="wikitable" style="width: 1000px;"
|-
! style="text-align: center;"|Designation
! style="text-align: center;"|Function
|-
| style="text-align: center;"|Y
| style="text-align: left;"| analog input/output that is electronically connected to one of the signals X0...X7 
|-
| style="text-align: center;"|X0...X7
| style="text-align: left;"| 8 analog inputs/outputs 
|-
| style="text-align: center;"|S0...S3
| style="text-align: left;"| digital control inputs in binary system 
|-
| style="text-align: center;"|G
| style="text-align: left;"|power supply ground (VSS) 
|-
| style="text-align: center;"|V+
| style="text-align: left;"|power supply input – positive pole (VDD) 
|-
| style="text-align: center;"|V-
| style="text-align: left;"|power supply input – negative pole (VEE) for symmetrical power supply, or ground for single power supply 
|}
</center>
 
All module signals are output on two single-row connectors J1 and J2, with a pitch of 2.54 mm. The location of individual signals is described on both sides of the module board:
 
<center>
[[File:KAmod_Multiplexer_syg.png|none|900px|thumb|center]]
</center>
 
Some signals – Y and G appear 2 or 3 times, but they are the same signals.
 
===== Power =====
The KAmod Multiplexer module can be powered by a single, stabilized DC voltage of 3...20 V. In this case, the V+ pin requires a positive power supply pole, while the G and V- pins should be connected to the power supply ground:
<center>
[[File:KAmod_Multiplexer_pwr.png|none|500px|thumb|center]]
</center>
In some applications, a dual or symmetrical power supply will be required, e.g. in circuits with audio signals. In this case, a power supply with two voltages should be supplied, the sum of which will be 3...20 V. The V+ pin requires a positive power supply pole, the G pin is the power supply ground, while the V- pin requires a negative power supply. The connection diagram for such a configuration is shown in the figure below:
<center>
[[File:KAmod_Multiplexer_pwr_2.png|none|450px|thumb|center]]
</center>
 
===== Dimensions =====
The dimensions of the KAmod Multiplexer board are 27x18.3 mm. There are 2 mounting holes on the board with a diameter of 3.2 mm.

<center>
[[File:KAmod_Multiplexer_wym.png|none|650px|thumb|center]]
</center>
 

===== External links =====
*[https://wiki.kamamilabs.com/images/b/b0/CD4051b.pdf CD4051B datasheet]
*[https://wiki.kamamilabs.com/images/0/0b/KAmod-Multi4051_step.zip CAD model (STEP)]

KAmod Multiplexer - Revision history

Grzegorzbecker: /* Standard Equipment */