User Guide
UG001012
AS8579 Adapter Board
User Manual (HW/SW)
AS8579-SS_EK_AB v1-00 • 2021-Apr-16
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Content Guide
Content Guide
1
1.1
1.2
2
2.1
2.2
3
Introduction ................................... 3
Kit Content .................................................... 3
Ordering Information .................................... 4
Board Description ......................... 5
Detailed Description ..................................... 6
Pinout ........................................................... 7
Hardware ........................................ 9
5
3.1
3.2
4
Schematic ..................................................... 9
Layout ......................................................... 10
Revision Information ................... 11
Legal Information ......................... 12
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Introduction
1 Introduction
This manual explains how to use the AS8579-SS_EK_AB hardware. The Hardware is designed to test and evaluate the features of AS8579 capacitive sensor. The AS8579 is a sensor, which measures the capacitive value by separately measuring the 10-bit Information (accumulated to 14-bit) of I and Q.
This 14-bit information provides the capacitance of the application. The I and Q data can be read over a standard SPI interface.
For first setting up, please see application note: AS8579_SPI_Configuration_AN001003_1-00.
1.1 Kit Content
Figure 1:
AS8579 Adapter Board Kit Content
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1.2 Ordering Information
Ordering Code
AS8579-SS_EK_AB
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Description
AS8579 Adapter Board
AS8579 Adapter Board
Introduction
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2 Board Description
AS8579 Adapter Board
Board Description
The PCB can be connected via standard SPI to a microcontroller. The Production-Programmer from
SD4Y and the ams I&P-Box are also recommended tools for communication/programming interface.
If you want to connect the I&P box to the Adapter Board, a level shifter is needed (the I&P Box works with 3.3 V voltage levels).
The PCB is equipped with all necessary peripheral components for easy evaluation.
Figure 2:
AS8579 Adapter Board
Figure 3:
BOM
Symbol
U1
C1
C2
X1
Description
Capacitive sensor AS8579
Capacitor 100 nF
Capacitor 1 µF
Oscillator 48 MHz
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2.1 Detailed Description
Figure 4:
AS8579 Adapter Board Overview
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Board Description
Figure 5:
Description
Components
Supply
SPI Pins
SEN Lines
VAR/ FIX SEN
Oscillator
AS8579
Bypass Caps
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Description
Pin 5 V supply and ground
Communication and Programming Interface
Sensing interface
Pins for cable and PCB shielding
Oscillator for clock generation of system clock frequency input
Settings: EDIV=0000b (default value) -> CLK_E divider is 12 and resulting system clock is 4 Mz
Capacitive sensor
Recommended decoupling capacitors
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2.2 Pinout
Figure 6:
AS8579 Adapter Board Pinout
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Board Description
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Figure 7:
Pinout
Pin #
P1-9
P1-10
P1-11
P1-12
P1-13
P1-14
P1-15
P1-16
P2-1
P2-2
P1-1
P1-2
P1-3
P1-4
P1-5
P1-6
P1-7
P1-8
Symbol
SEN0
SEN1
SEN2
SEN3
SEN4
SEN5
SEN6
SEN7
5V
GND
CSn
MOSI
CLK
MISO
SEN9
SEN8
FIX_SEN
VAR_SEN
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Description
Sensing Lines (0-7)
5 V supply
Ground
SPI – Chip select
SPI – Master out slave in
SPI – Clock
SPI – Master in slave out
Sensing Lines (8-9)
PCB shielding driver
Cable shielding driver
AS8579 Adapter Board
Board Description
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A
B
C
D
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3 Hardware
1
3.1 Schematic
Figure 8:
Schematic
2
SEN0
SEN1
SEN2
SEN3
SEN4
SEN5
SEN6
SEN7
P1
7
8
5
6
3
4
1
2
9
10
11
12
13
14
15
16
Header 8X2A
5V
CSn
MOSI
CLK
MISO
SEN9
SEN8
GND
AS8579 Adapter Board
Hardware
FIX_SEN
VAR_SEN
P2
1
2
Header 2
3
5V 1
X1
Enable Control GND
2
5V 4
VDD
48MHz_oscillator
OUT
5V
3
C1
100nF
GND
GND
CSn
MOSI
CLK
MISO
13
14
15
16
17
18
19
20
21
22
23
24
U1
ECLK
TEST_ENABLE
CS
DIN
SCLK
VDD1
VDD2
DOUT
VSS1
VSS2
REG1
REG2
FIX_SEN
VAR_SEN
SEN0
SEN1
SEN2
SEN3
SEN4
SEN5
SEN6
SEN7
SEN8
SEN9
AS8579
3
2
5
4
1
8
7
6
12
11
10
9
FIX_SEN
VAR_SEN
SEN0
SEN1
SEN2
SEN3
SEN4
SEN5
SEN6
SEN7
SEN8
SEN9
GND
C2
1µF
GND
1
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4
A
B
C
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3
Size
A4
Project Title
AS8579-SS_EK_AB
Date 08.03.2021
Originator azen Sheet 1
4
Revision
1.0
of 1
D
3.2 Layout
Figure 9:
PCB Layout
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Hardware
(1) All dimensions in mm.
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4 Revision Information
AS8579 Adapter Board
Revision Information
Changes from previous version to current revision v1-00 Page
●
●
Initial production version all
Page and figure numbers for the previous version may differ from page and figure numbers in the current revision.
Correction of typographical errors is not explicitly mentioned.
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5 Legal Information
AS8579 Adapter Board
Legal Information
Copyrights & Disclaimer
Copyright ams AG, Tobelbader Strasse 30, 8141 Premstaetten, Austria-Europe. Trademarks Registered. All rights reserved.
The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner.
Demo Kits, Evaluation Kits and Reference Designs are provided to recipient on an “as is” basis for demonstration and evaluation purposes only and are not considered to be finished end-products intended and fit for general consumer use, commercial applications and applications with special requirements such as but not limited to medical equipment or automotive applications. Demo Kits, Evaluation Kits and Reference Designs have not been tested for compliance with electromagnetic compatibility (EMC) standards and directives, unless otherwise specified. Demo Kits, Evaluation Kits and Reference Designs shall be used by qualified personnel only. ams AG reserves the right to change functionality and price of Demo Kits, Evaluation Kits and Reference Designs at any time and without notice.
Any express or implied warranties, including, but not limited to the implied warranties of merchantability and fitness for a particular purpose are disclaimed. Any claims and demands and any direct, indirect, incidental, special, exemplary or consequential damages arising from the inadequacy of the provided Demo Kits, Evaluation Kits and Reference Designs or incurred losses of any kind (e.g. loss of use, data or profits or business interruption however caused) as a consequence of their use are excluded. ams AG shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow out of ams AG rendering of technical or other services.
RoHS Compliant & ams Green Statement
RoHS Compliant : The term RoHS compliant means that ams AG products fully comply with current RoHS directives. Our semiconductor products do not contain any chemicals for all 6 substance categories plus additional 4 substance categories (per amendment EU 2015/863), including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, RoHS compliant products are suitable for use in specified lead-free processes. ams Green (RoHS compliant and no Sb/Br/Cl) : ams Green defines that in addition to RoHS compliance, our products are free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) and do not contain Chlorine (Cl not exceed 0.1% by weight in homogeneous material).
Important Information : The information provided in this statement represents ams AG knowledge and belief as of the date that it is provided. ams AG bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. ams AG has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. ams AG and ams AG suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
Headquarters ams AG
Tobelbader Strasse 30
8141 Premstaetten
Austria, Europe
Tel: +43 (0) 3136 500 0
Please visit our website at www.ams.com
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For further information and requests, e-mail us at [email protected]
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