CY3280-MBR Cypress Semiconductor Corp, CY3280-MBR Datasheet - Page 13

• Manufacturer Part Number: CY3280-MBR
• Description: BOARD EVAL CAPSENSE EXPRESS
• Manufacturer: Cypress Semiconductor Corp
• Series: CapSense® Express™ SmartSense™r

Specifications of CY3280-MBR

• Design Resources: CY3280-MBR Schematic CY3280-MBR Bill of Materials CY3280-MBR Gerber Files CY3280-MBR Board Layout
• Sensor Type: Touch, Capacitive
• Sensing Range: 4 Buttons/Keys
• Voltage - Supply: 3V
• Embedded: No
• Utilized Ic / Part: CY8CMBR2044
• Operating Voltage: 1.71 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Operating Current: 2.88 A
• Silicon Core Number: CY8CMBR2044
• Silicon Family Name: PSoC
• Kit Contents: 2x AAA Batteries, Axial Capacitors 10pF, 22pF, 33pF, 68pF, Quick Start Guide
• Rohs Compliant: Yes
• For Use With/related Products: CY8CMBR2044
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Interface: -
• Sensitivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 428-3083

3.1
3.2
3.2.1
3.2.2
CY3280-MBR CapSense Express with SmartSense Auto-Tuning Kit Guide, Doc. # 001-64772 Rev. **
3.
Kit Features
This section demonstrates the main features of CY8CMBR2044 CapSense controller using the
CY3280-MBR kit.
Features of CY8CMBR2044 CapSense Controller
CY8CMBR2044 has the following features:
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Refer the
Note All features of the CY3280-MBR2044 CapSense controller can be enabled together. For ease
of demonstration, each feature is enabled separately in this document.
SmartSense Feature
The following steps help to demonstrate the SmartSense feature of CY8CMBR2044 CapSense
controller using CY3280-MBR kit. Before proceeding, power the kit in default mode using the
procedure provided in the section
Enable SmartSense Feature
CY8CMBR2044 CapSense controller is built around robust CSD capacitive sensing method and
patented SmartSense auto tuning algorithm. There is no action required to enable SmartSense
feature in CY8CMBR2044 CapSense controller. It is automatically enabled on power up.
Test CapSense Buttons with SmartSense Feature Enabled
Touch any CapSense button; the respective LED turns on. When the finger is released, the
respective LED turns off.
Connect the 10-pF capacitor provided with the kit to the J5 connector, the mark on the capacitor
connector facing up. This increases the parasitic capacitance of the CS2 sensor input, which is
connected to BTN2 sensor.
Press the power button to turn off the kit; press again to turn on power. Automatic self tuning is
performed only on power up and not on run time.
Touch BTN2, there is no difference in the way it works. Note that although the parasitic capacitance
of the sensor is increased, the sensor continues to work with automated tuning.
SmartSense
Toggle
Flanking sensor suppression (FSS)
Delay off
ScanRate/Sleep
ARST
CY8CMBR2044 data sheet
2.5 Power the Kit on page
for more details on these features.
11.
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