F990SLIDEREK Silicon Laboratories Inc, F990SLIDEREK Datasheet

F990SLIDEREK

Manufacturer Part Number

F990SLIDEREK

Description

EVAL CAPACITIVE TOUCH SLIDER

Manufacturer

Silicon Laboratories Inc

Series

QuickSense™r

Datasheets

1.F990SLIDEREK.pdf (2 pages)

2.F990SLIDEREK.pdf (8 pages)

Specifications of F990SLIDEREK

Sensor Type

Touch, Capacitive

Sensing Range

Slider

Voltage - Supply

Embedded

Yes, MCU, 8-Bit

Utilized Ic / Part

C8051F990

Processor To Be Evaluated

C8051F990

Processor Series

C8051F99x

Data Bus Width

12 bit

Operating Supply Voltage

3 V

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Interface

Sensitivity

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

Other names

336-1962

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C8051F990 S

1. Kit Contents

The C8051F990 Slider Evaluation Kit contains the following items:



For more detailed discussions on capacitive sensing best practice methods and QuickSense firmware, please refer

to the following documents:



2. C8051F990 Slider Evaluation Kit Overview

The C8051F990 Slider Evaluation Kit demonstrates the system level possibilities that can be achieved when

combining Silicon Laboratories QuickSense™ technology with the C8051F99x ultra low power capacitive sensing

MCU. The result is a battery powered capacitive sensing solution that has the following features:



Rev. 0.2 11/10

C8051F990 Slider board (with pre-installed 3.0 V coin cell battery—CR2032)

F990Slider-EK Quickstart Guide

AN366: QuickSense Firmware API

AN367: Understanding Capacitive Sensing Signal to Noise Ratios and Setting Reliable Thresholds

AN418: Baselining in the QuickSense firmware API

AN447: Printed Circuit Design Notes for Capacitive Sensing with the CS0 Module

AN494: QuickSense Communications Interface

Low Power Wake-on-Slide—Allows the system to be designed without any mechanical components. The

system wakes up when the user slides a finger across the slider. The system has a shelf life of over 5 years in

this low power wake-on-slide mode. For more information on how the wake-on-slide feature achieves gesture

recognition in a low-power system, see "3.5. Wake-on-Slide Firmware Functionality" on page 3.

QuickSense™ Slider Control—Allows multiple capacitive sensing pads to be bound together to form a slider

control. The QuickSense API performs all required calculations and notifies the application software of the

finger position on the slider. The slider demo demonstrates this capability and has a runtime of over 120 hours

at the maximum LED setting. Runtime is limited by LED current and can be increased by dimming the LED.

Gesture Recognition—Quicksense™ events enable the ability to detect gestures, such as a “pinch”, on the

slider. In this system, the “pinch” gesture is used to switch between different demonstration modes.

Miniature Size—The C8051F990 MCU has a built in SmaRTClock oscillator (no crystal required) and is

available in a 3x3 mm package. The sleep mode current is 300 nA and the active mode current is 150 µA/MHz.

Battery Meter—Using the C8051F990’s 12-bit ADC, the system is able to measure the battery voltage and

determine the remaining battery capacity.

LED Dimmer—The system dynamically reduces LED power consumption by driving the LEDs with a PWM

signal. Taking advantage of the fast 2 µs wake-up time, the MCU can efficiently wake up from sleep, adjust the

state of the LED, and go back to sleep very efficiently. This allows a flicker-free, low power, LED dimming mode.

LIDER

Figure 1. C8051F990 Slider Evaluation Board

VALUATION

F 9 9 0 - S l i d e r - E K U G

I T

SER

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F990-Slider-EK UG

UIDE

Related parts for F990SLIDEREK

F990SLIDEREK Summary of contents

Page 1

C8051F990 S LIDER 1. Kit Contents The C8051F990 Slider Evaluation Kit contains the following items:  C8051F990 Slider board (with pre-installed 3.0 V coin cell battery—CR2032)  F990Slider-EK Quickstart Guide For more detailed discussions on capacitive sensing best practice methods ...

Page 2

F990-Slider- C8051F990 Slider Evaluation Kit Demo The C8051F990 Slider Evaluation Board is ready to use out of the box. Simply lay the board on a flat surface, remove the paper tab to allow the battery to make contact ...

Page 3

Wake-on-Slide Firmware Functionality The F99x slider firmware operates in a low-power state until the user slides a finger across the slider sensor. Firmware stays in this low-power state while continuously sampling the slider by following the state machine shown ...

Page 4

F990-Slider-EK UG Figure 3. Activity Profile for the C8051F99x Slider Firmware 4 Rev. 0.2 ...

Page 5

Schematics F990-Slider-EK UG Rev. 0.2 5 ...

Page 6

F990-Slider- OCUMENT HANGE IST Revision 0.1 to Revision 0.2  Added firmware description and related application notes.  Modified out-of-box instructions. 6 Rev. 0.2 ...

Page 7

N : OTES F990-Slider-EK UG Rev. 0.2 7 ...

Page 8

... Should Buyer purchase or use Silicon Laboratories products for any such unintended or unauthorized ap- plication, Buyer shall indemnify and hold Silicon Laboratories harmless against all claims and damages. Silicon Laboratories, Silicon Labs, and QuickSense are trademarks of Silicon Laboratories Inc. Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders 8 Rev ...

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