ELECTRONIC COMPONENTS

SHARP IrDA Control Infrared Transceiver

SHARP Electronic Components

9

Rev. 1.0.1, November 26, ‘98

8. Application Circuit and Recommended Components

Parts

Recommended Value

CX1

470pF, + 10%, Ceramic

CX2

0.1

µF, + 10%, Ceramic

CX3

4.7

µF, + 20%, Aluminum

CX4

0.1

µF, + 10%, Ceramic

CX5

560pF, + 10%, Ceramic

R1

10

Ω, + 5%, 0.125 Watt

R2

8.2k

Ω, + 1%, 0.125 Watt

R3

820

Ω, + 5%, 0.125 Watt

R4

4.7

Ω, + 5%, 0.5 Watt

9. Waveform Examples

The following diagram shows and example of IrDA Control implementation using Sharp IrDA Control Infrared

Transceiver. The waveform of the implemented system with Sharp IrDA Control Infrared Transceiver will be as shown

below:

LEDA

TXD

Vo

RESET

IRTx1

IRRx1

FRESET

I

II

SD

RxCNT

A

Figure 9.1 IrDA Control Transceiver Implementation

Receiver

Transmitter

1

2

3

4

5

6

7

8

9

10

11

IRRX

3.3V

CX1

CX2

CX3

CX4

CX5

R1

R2

R3

R4

5V

IRTX

FERESET

Figure 8.1 GP2W2002YK Application Circuit Example

Section

Waveform

I

16PSM code x 1.5MHz

II

Receiver Original Output