RECEIVER/DECODER 433MHZ KH2 SER

RXD-433-KH2

Manufacturer Part NumberRXD-433-KH2
DescriptionRECEIVER/DECODER 433MHZ KH2 SER
ManufacturerLinx Technologies Inc
SeriesKH2
RXD-433-KH2 datasheet
 


Specifications of RXD-433-KH2

Frequency433MHzSensitivity-102dBm
Data Rate - Maximum5 kbpsModulation Or ProtocolASK, OOK
ApplicationsGarage Openers, RKE, Security AlarmsCurrent - Receiving5mA
Data InterfacePCB, Surface MountAntenna ConnectorPCB, Surface Mount
FeaturesBuilt-in Remote Control DecoderVoltage - Supply2.7 V ~ 3.6 V
Operating Temperature-40°C ~ 70°CPackage / CaseNon-Standard SMD
Board Size36.3 mm x 16 mm x 4.6 mmMinimum Operating Temperature- 40 C
Supply Voltage (min)2.7 VProductRF Modules
Maximum Frequency433.92 MHzSupply Voltage (max)3.6 V
Maximum Operating Temperature+ 70 CLead Free Status / RoHS StatusLead free / RoHS Compliant
Memory Size-  
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RXD-315-KH2
RXD-418-KH2
RXD-433-KH2
®
WIRELESS MADE SIMPLE
KH2 SERIES RECEIVER / DECODER DATA GUIDE
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 KH
Series transmitter / encoder module, OEM
transmitter, or LC or LR Series transmitter and
Holtek HT640 encoder combination, a highly
reliable wireless link is formed, capable of
transferring the status of 8 parallel inputs for
distances of up to 3,000 feet. Ten tri-state
10)
address lines provide 59,049 (3
different
addresses for security and uniqueness. Housed
Figure 1: Package Dimensions
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.
FEATURES
Low cost
Advanced synthesized
architecture
Long Range
On-board decoder
Received data output
8 parallel binary outputs
Transmission validation
10
No production tuning
3
addresses for security and
uniqueness
No external RF components
required (except an antenna)
Ultra-low power consumption
Pin-compatible with original KH
Compact SMD package
APPLICATIONS INCLUDE
ORDERING INFORMATION
Remote Control / Command
PART #
Keyless Entry
TXE-315-KH
Garage / Gate Openers
TXE-418-KH
Lighting Control
TXE-433-KH
Call Systems
RXD-315-KH2
Home / Industrial Automation
RXD-418-KH2
Fire / Security Alarms
RXD-433-KH2
Remote Status Monitoring
EVAL-***-KH2
Wire Elimination
*** = Frequency
Receivers are supplied in tubes of 20 pcs.
1.430"
RF RECEIVER/DECODER
0.630"
RXD-418-KH2
LOT 1000
0.180"
DESCRIPTION
Transmitter / Encoder 315MHz
Transmitter / Encoder 418MHz
Transmitter / Encoder 433MHz
Receiver / Decoder 315MHz
Receiver / Decoder 418MHz
Receiver / Decoder 433MHz
Basic Evaluation Kit
Revised 1/28/08

RXD-433-KH2 Summary of contents

  • Page 1

    ... Keyless Entry TXE-315-KH Garage / Gate Openers TXE-418-KH Lighting Control TXE-433-KH Call Systems RXD-315-KH2 Home / Industrial Automation RXD-418-KH2 Fire / Security Alarms RXD-433-KH2 Remote Status Monitoring EVAL-***-KH2 Wire Elimination *** = Frequency Receivers are supplied in tubes of 20 pcs. 1.430" RF RECEIVER/DECODER 0.630" RXD-418-KH2 LOT 1000 0.180" ...

  • Page 2

    ... CC With Dropping Resistor 4.3 Supply Current I 4.0 CC Power-Down Current I 20.0 PDN RECEIVER SECTION Receive Frequency Range RXD-315-KH2 – RXD-418-KH2 – RXD-433-KH2 – Center Frequency Accuracy – -50 LO Feedthrough – – IF Frequency F – IF Noise Bandwidth N – 3DB Data Rate – 100 Data Output: ...

  • Page 3

    PIN ASSIGNMENTS 1 NC ANT 2 D0 GND GND RSSI 5 VCC A9 6 PDN DATA ...

  • Page 4

    DECODER OPERATION The KH2 Series receiver utilizes the HT658 decoder from Holtek. The decoder receives data transmitted by the encoder and interprets the first 10 bits of the code period as address and the last 8 bits as data. A ...

  • Page 5

    ... D7 A0 GND RXD-XXX-KH2 Figure 12: Basic Remote Control Receiver The ten-position DIP switch is used to set the address to either ground or floating. Since the floating state is a valid state, no pull-up resistors are needed. The data line outputs can only source about 1mA of current, so transistor buffers are used to drive the buzzer and LED. 1mA is sufficient to activate most microcontrollers, but the manufacturer’ ...

  • Page 6

    BOARD LAYOUT GUIDELINES If you are at all familiar with RF devices, you may be concerned about specialized board layout requirements. Fortunately, because of the care taken by Linx in designing the modules, integrating them is very straightforward. Despite this ...

  • Page 7

    PAD LAYOUT The following pad layout diagram is designed to facilitate both hand and automated assembly. 0.065" 0.610" 0.100" Figure 17: Recommended PCB Layout PRODUCTION GUIDELINES The modules are housed in a hybrid SMD package that supports hand or automated ...

  • Page 8

    ANTENNA CONSIDERATIONS The choice of antennas is a critical and often overlooked design consideration. The range, performance, and legality link are critically dependent upon the antenna. While adequate antenna performance can often be obtained by trial and ...

  • Page 9

    COMMON ANTENNA STYLES There are literally hundreds of antenna styles and variations that can be employed with Linx RF modules. Following is a brief discussion of the styles most commonly utilized. Additional antenna information can be found in Linx Application ...

  • Page 10

    LEGAL CONSIDERATIONS NOTE: Linx RF modules are designed as component devices that require external components to function. The modules are intended to allow for full Part 15 compliance; however, they are not approved by the FCC or any other agency ...

  • Page 11

    WIRELESS MADE SIMPLE U.S. CORPORATE HEADQUARTERS LINX TECHNOLOGIES, INC. 159 ORT LANE MERLIN, OR 97532 PHONE: (541) 471-6256 FAX: (541) 471-6251 www.linxtechnologies.com Disclaimer Linx Technologies is continually striving to improve the quality and function of its products. For this ...