4

Notes:

1. Tiedthroughexternalresistor,R2,toVled.Refertothetablebelowforrecommendedseriesresistorvalue.

2. ThispinisusedtotransmitserialdatawhenSDpinislow.Ifheldhighforlongerthan50ms,theLEDisturnedoff.DoNOTfloatthispin.

3. ThispiniscapableofdrivingastandardCMOSorTTLload.Noexternalpull-uporpull-downresistorisrequired.Thepinisintri-statewhenthe

transceiverisinshutdownmode

4. CompleteshutdownofICandPINdiode.ThepinisusedforsettingIRreceiverbandwidth,rangeofIRLEDcurrentandRCdriveprogramming

mode.Refertosectionon“BandwidthSelectionTiming”and“RemoteControlDriveModes”formoreinformation.DoNOTfloatthispin.***

5. ConnecttoASIClogiccontrollersupplyvoltageorVcc.ThevoltageatthispinshouldbeequaltoorlessthanVcc.

6. LogichighturnsontheRCLED.Ifheldhighlongerthan50ms,theRCLEDisturnedoff.DoNOTfloatthepin.

7. (i)Regulated,2.4Vto3.6V

(ii)Thispinrecommendedtoturnonbeforeotherpin.

8. Connecttosystemground.

Marking Information

Theunitismarkedwith‘XYWLL’ontheshield

Y=year

W=workweek

LL=lotnumber

Order Information

Part Number

Packaging Type

Package

Quantity

ASDL-3023-021

TapeandReel

FrontOption

2500

ASDL-3023-008

TapeandReel

TopOption

2500

ASDL-3023–S21(Shielded)

TapeandReel

FrontOption

2500

I/O Pins Configuration Table

Pin

Symbol

Description

I/O Type

Notes

1

LEDA

LEDAnode

Note1

2

TxD_IR

IrDAtransmitterdatainput.

Input.

ActiveHigh

Note2

3

RxD

IrDAreceivedata

Output.

ActiveLow

Note3

4

SD

Shutdown

Input.

ActiveHigh

Note4

5

IOVCC

Input/OutputASICvoltage

Note5

6

TxD_RC

RCtransmitterdatainput.

Input.

ActiveHigh

Note6

7

VCC

SupplyVoltage

Note7

8

GND

Ground

Note8

ASDL-3023-021, ASDL-3023-008 and ASDL-3023-S21

Pinout, Rear View

Figure 2a. Pin out for ASDL-3023-021 and ASDL-3023-008,

Figure 2b. Pin out for ASDL-3023-S21

8

6

4

7

5

2

3

1

Rear View

8

6

4

7

5

2

3

1

Rear View

(Shielded)