TXE-433-KH2 Linx Technologies Inc, TXE-433-KH2 Datasheet
TXE-433-KH2
Specifications of TXE-433-KH2
Related parts for TXE-433-KH2
TXE-433-KH2 Summary of contents
Page 1
... APPLICATIONS INCLUDE ORDERING INFORMATION Remote Control / Command Keyless Entry PART # Garage / Gate Openers TXE-315-KH2 Lighting Control TXE-418-KH2 TXE-433-KH2 Call Systems RXD-315-KH2 Home / Industrial Automation RXD-418-KH2 Fire / Security Alarms RXD-433-KH2 Remote Status Monitoring EVAL-***-KH2 Wire Elimination *** = 315, 418 (Standard), 433.92MHz. ...
Page 2
... TXE-418-KH2 – TXE-433-KH2 – Center Frequency Accuracy – -75 Output Power Harmonic Emissions TXE-315-KH2 -40 TXE-418-KH2 -40 TXE-433-KH2 -45 ANTENNA PORT RF Output Impedance R – OUT ENCODER SECTION Data Length – – 26 bits 3x Average Data Duty Cycle – – Encoder Oscillator F – ENC Data Input: Logic Low – ...
Page 3
PIN ASSIGNMENTS 1 LADJ/GND ANT 2 D0 GND GND A8 5 VCC Figure 6: ...
Page 4
ENCODER OPERATION The KH2 Series transmitter internally utilizes the HT640 encoder from Holtek. The encoder begins a three-word transmission cycle when the Transmission Enable line (TE) is pulled high. This cycle will repeat itself for as long as the TE ...
Page 5
... TXE-xxx-KH2 VCC CR2032 3V LITHIUM GND R2 100K GND Figure 11: Basic Remote Control Transmitter 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 lines are pulled high by momentary pushbuttons. Since the floating state is interpreted as a low by the decoder, no pull-down resistors are needed ...
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 14: 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 ...