SI1102EK Silicon Laboratories Inc, SI1102EK Datasheet

SI1102EK

Manufacturer Part Number

SI1102EK

Description

BOARD EVAL FOR SI1102

Manufacturer

Silicon Laboratories Inc

Series

QuickSense™r

Datasheet

1.SI1102EK.pdf (4 pages)

Specifications of SI1102EK

Mfg Application Notes

Si114x irLED Guide AppNote

Sensor Type

Proximity, Infrared

Embedded

Utilized Ic / Part

Si1102

Operating Voltage

2 V to 5.25 V

Maximum Operating Temperature

+ 85 C

Minimum Operating Temperature

- 40 C

Description/function

Evaluation Kit

Package / Case

ODFN-8

Software

Software Included

For Use With/related Products

Si1102

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

Voltage - Supply

Interface

Sensitivity

Sensing Range

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

Other names

336-1826

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S i 11 0 2 E

1. Kit Contents

The Si1102 Evaluation Kit contains the following items:



2. Hardware Overview

The Si1102EK uses a Silicon Laboratories Si1102 to measure infrared proximity. The Si1102 strobes an infrared

LED at a frequency defined by the potentiometer labeled R2. The Si1102 measures the amount of infrared light

that reflects onto the Si1102 package. If the reflected light magnitude exceeds a threshold set by the potentiometer

labeled R1, the Si1102’s PRX output pin latches low, which turns on the blue LED labeled D2. The board is pow-

ered by a CR2032 battery, and the supply current can be connected or disconnected from the Si1102 and the LEDs

using the switch labeled S1. Header H1 provides access to the Si1102’s pins.

Figure 1 shows the Si1102EK board. Table 1 lists the signals connected to each of header H1’s pins.

For more information regarding Si1102 functionality, please see the Si1102 data sheet.

Rev. 0.1 10/09

board) – Potentiometer

Si1102EK evaluation board

CR2032 battery

controls the proximity

R1 (bottom side of

threshold

D2 – proximity

indicator LED

VALUATION

H1 Pin #

Figure 1. Si1102 Evaluation Kit Board

Si1102 Pin #

Table 1. Header H1 Pin-Out

N/C

I T

power switch

S1 – battery

SER

’

Signal Name

D1 – infrared LED

Si1102

Ground

SREN

VDD

PRX

TXO

N/C

UIDE

S i 11 0 2 - E K

controls Si1102 infrared

board) – Potentiometer

LED strobe frequency

R2 (bottom side of

Si1102-EK

Related parts for SI1102EK

SI1102EK Summary of contents

Page 1

... CR2032 battery, and the supply current can be connected or disconnected from the Si1102 and the LEDs using the switch labeled S1. Header H1 provides access to the Si1102’s pins. Figure 1 shows the Si1102EK board. Table 1 lists the signals connected to each of header H1’s pins. For more information regarding Si1102 functionality, please see the Si1102 data sheet. ...

Page 2

Si1102-EK 3. Schematics 2 Rev. 0.1 ...

Page 3

N : OTES Rev. 0.1 Si1102-EK 3 ...

Page 4

... 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. ...

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