Linx-technologies RXD-xxx-KH2 User Manual download pdf

DESCRIPTION

The KH2 Series is ideally suited for volume use

in OEM applications such as remote control /

command and keyless entry. It combines a

high-performance RF receiver with an on-board

decoder. When paired with a matching KH2

Series transmitter / encoder module, OEM

transmitter, or LC or LR Series transmitter and

Holtek HT640 encoder combination, a highly

reliable wireless link is formed that is capable of

transferring the status of eight parallel inputs for

distances of up to 3000 feet. Ten tri-state

address lines provide 59,049 (3

10)

different

addresses for security and uniqueness. Housed

in a compact SMD package, the KH2 module

utilizes an advanced synthesized architecture to achieve an unmatched blend of

performance, size, range and cost. No external RF components are required except

an antenna, making design integration straightforward.

KH2 SERIES RECEIVER / DECODER DATA GUIDE

WIRELESS MADE SIMPLE

®

Revised 7/21/11

Figure 1: Package Dimensions

0.630"

1.430"

LOT 1000

RF RECEIVER/DECODER

0.180"

RXD-418-KH2

n Remote Control / Command

n Keyless Entry

n Garage / Gate Openers

n Lighting Control

n Call Systems

n Home / Industrial Automation

n Fire / Security Alarms

n Remote Status Monitoring

n Wire Elimination

APPLICATIONS INCLUDE

n Low cost

n Long range

n On-board decoder

n 8 parallel binary outputs

n 3

10

addresses for security and

uniqueness

n Ultra-low power consumption

n Compact SMD package

n Advanced synthesized

architecture

n Received data output

n Transmission validation

n No production tuning

n No external RF components

required (except an antenna)

n Pin-compatible with original KH

FEATURES

PART # DESCRIPTION

TXE-315-KH2 Transmitter / Encoder 315MHz

TXE-418-KH2 Transmitter / Encoder 418MHz

TXE-433-KH2 Transmitter / Encoder 433MHz

RXD-315-KH2 Receiver / Decoder 315MHz

RXD-418-KH2 Receiver / Decoder 418MHz

RXD-433-KH2 Receiver / Decoder 433MHz

EVAL-***-KH2 Basic Evaluation Kit

*** = Frequency

Receivers are supplied in tubes of 20 pcs.

ORDERING INFORMATION

RXD-315-KH2

RXD-418-KH2

RXD-433-KH2

1 2 3 4 5 6 ... 10 11

Summary of Contents

Page 1 - WIRELESS MADE SIMPLE

DESCRIPTIONThe KH2 Series is ideally suited for volume usein OEM applications such as remote control /command and keyless entry. It combines ahigh-per

Page 2 - RFIN >-35dBm

Page 19Page 18LEGAL CONSIDERATIONSWhen working with RF, a clear distinction must be made between what is technicallypossible and what is legally accep

Page 3 - Decoder Stage

LINX TECHNOLOGIES159 ORT LANEMERLIN, OR 97532PHONE: (541) 471-6256FAX: (541) 471-6251www.linxtechnologies.comU.S. CORPORATE HEADQUARTERSWIRELESS MADE

Page 4 - SETTING THE RECEIVER ADDRESS

Page 3Page 2ABSOLUTE MAXIMUM RATINGSSupply Voltage VCC-0.3 to +3.6 VDCSupply Voltage VCC, Using Resistor -0.3 to +5.2 VDCAny Input or Output Pin -0.3

Page 5 - INTERFERENCE CONSIDERATIONS

Page 5Page 4PIN ASSIGNMENTSNCD0D1 NCRSSIA9A8A7A6D2GNDVCCPDND3ANTGND123456782122232425262728D4DATAVT A3A2A1A0D5D6D7A5A491011121314151617181920Figure 7:

Page 6 - MICROSTRIP DETAILS

Page 7Page 6DECODER OPERATIONThe KH2 Series receiver utilizes the HT658decoder from Holtek. The decoder receivesdata transmitted by the encoder andint

Page 7 - Absolute Maximum Solder Times

Page 9Page 8TYPICAL APPLICATIONSThe figure below shows an example of a basic remote control receiver utilizingthe KH2 Series receiver module. When a k

Page 8 - GENERAL ANTENNA RULES

BOARD LAYOUT GUIDELINESIf you are at all familiar with RF devices, you may be concerned aboutspecialized board layout requirements. Fortunately, becau

Page 9 - F = operating frequency

PAD LAYOUTThe following pad layout diagram is designed to facilitate both hand andautomated assembly.PRODUCTION GUIDELINESThe modules are housed in a

Page 10 - NOTE APPLICATION NOTE TITLE

Page 15Page 14ANTENNA CONSIDERATIONSThe choice of antennas is a criticaland often overlooked designconsideration. The range,performance, and legality

Page 11 - LINX TECHNOLOGIES

Page 17Page 16A whip-style antenna provides outstanding overall performanceand stability. A low-cost whip is can be easily fabricated from awire or ro

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