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LC SERIES TRANSMITTER MODULE DATA GUIDE

■ Remote control

■ Keyless entry

■ Garage / Gate openers

■ Lighting control

■ Medical monitoring / Call systems

■ Remote industrial monitoring

■ Periodic data transfer

■ Home / Industrial automation

■ Fire / Security alarms

■ Remote status / Position sensing

■ Long-range RFID

■ Wire Elimination

APPLICATIONS INCLUDE:

■ Low Cost

■ No External RF Components

Required

■ Ultra-low Power Consumption

■ Compact Surface-Mount Package

■ Stable SAW-based Architecture

■ Supports Data Rates to 5,000 bps

■ Wide Supply Range (2.7-5.2 VDC)

■ Direct Serial Interface

■ Low Harmonics

■ No Production Tuning

The LC Series is ideally suited for volume use

in OEM applications such as remote control,

security, identification, and periodic data

transfer. Packaged in a compact SMD package,

the LC transmitter utilizes a highly optimized

SAW architecture to achieve an unmatched

blend of performance, size, efficiency and cost.

When paired with a matching LC series

receiver, a highly reliable wireless link is

formed, capable of transferring serial data at

distances in excess of 300 Feet. No external RF

components, except an antenna, are required,

making design integration straightforward, even

for engineers lacking previous RF experience.

TXM-315-LC

TXM-418-LC

TXM-433-LC

PHYSICAL DIMENSIONS

DESCRIPTION:

FEATURES:

Revised 12/21/01

PART # DESCRIPTION

EVAL-***-LC Basic Evaluation Kit

MDEV-***-LC Master Development Kit

TXM-315-LC Transmitter 315 MHZ

TXM-418-LC Transmitter 418 MHZ

TXM-433-LC Transmitter 433 MHZ

RXM-315-LC Receiver 315 MHZ

RXM-418-LC Receiver 418 MHZ

RXM-433-LC Receiver 433 MHZ

*** Insert Frequency

Not covered in this manual

LC Transmitters are supplied in tube

packaging - 50 pcs. per tube.

ORDERING INFORMATION

Summary of content (9 pages)

PAGE 1
TXM-315-LC TXM-418-LC TXM-433-LC LC SERIES TRANSMITTER MODULE DATA GUIDE PHYSICAL DIMENSIONS DESCRIPTION: The LC Series is ideally suited for volume use in OEM applications such as remote control, security, identification, and periodic data transfer. Packaged in a compact SMD package, the LC transmitter utilizes a highly optimized SAW architecture to achieve an unmatched blend of performance, size, efficiency and cost.
PAGE 2
PERFORMANCE DATA– TXM-***-LC +8 +7 +6 +5 CC +4 +3 +2 +1 0 -1 -2 -3 -4 -5 -6 -7*NOTE* Exceeding any of the 2.5 5.0 (V) 4.0 4.5 3.0 3.5 Absolute Maximum Ratings: Supply voltage V , using pin 7 -0.3 Operating temperature -30°C Storage temperature -45°C Soldering temperature +225°C Any input or output pin -0.3 ABOUT THESE MEASUREMENTS The performance parameters listed below are based on module operation at 25°C from a 3.3Vdc supply unless otherwise noted.
PAGE 3
TRANSMITTER AUTOMATED ASSEMBLY PRODUCTION GUIDELINES For high-volume assembly most users will want to auto-place the modules. The modules have been designed to maintain compatibility with most pick-and-place equipment; however, due to the module's hybrid nature certain aspects of the automated assembly process are far more critical than for other component types. Following are brief discussions of the three primary areas where caution must be observed.
PAGE 4
PHYSICAL PACKAGING MODULE DESCRIPTION The transmitter is packaged as a hybrid SMD module with eight pads spaced 0.100" apart on center. The SMD package is equipped with castellations which allow for side introduction of solder. This simplifies prototyping or hand assembly while maintaining compatibility with automated pick-and-place equipment. Modules are available in tube or tape-and-reel packaging (see page 1 for ordering information).
PAGE 5
TRANSMITTING DATA Once a reliable RF link has been established, the challenge becomes how to effectively transfer data across it. While a properly designed RF link provides reliable data transfer under most conditions, there are still distinct differences from a wired link that must be addressed. Since the LC modules do not incorporate internal coding/decoding, a user has tremendous flexibility in how data is formatted and sent.
PAGE 6
3. Depending on the type of antenna being used and duty cycle of incoming data, the output power of the LC module may be higher than FCC regulations allow. The output power of the module is intentionally set high since many designers pair the module with an inefficient antenna in order to realize cost or space savings. Since attenuation is often required it is generally wise to provide for its implementation. Output Power dBm Two methods of attenuation are available using the LC module.
PAGE 7
GUIDELINES FOR ACHIEVING OPTIMUM ANTENNA PERFORMANCE 1. Proximity to objects such as a user’s hand or body, or metal objects will cause an antenna to detune. For this reason the antenna shaft and tip should be positioned as far away from such objects as possible. 2. Optimum performance will be obtained from a 1/4- or 1/2-wave straight whip mounted at a right angle to the groundplane.
PAGE 8
LEGAL CONSIDERATIONS NOTE: LC Series Modules are designed as component devices which 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 worldwide. The purchaser understands that approvals may be required prior to the sale or operation of the device, and agrees to utilize the component in keeping with all laws governing its operation in the country of operation.
PAGE 9
U.S. CORPORATE HEADQUARTERS: LINX TECHNOLOGIES, INC. 575 S.E. ASHLEY PLACE GRANTS PASS, OR 97526 Phone: (541) 471-6256 FAX: (541) 471-6251 http://www.linxtechnologies.com Disclaimer Linx Technologies is continually striving to improve the quality and function of its products; for this reason, we reserve the right to make changes without notice. The information contained in this Data Sheet is believed to be accurate as of the time of publication. Specifications are based on representative lot samples.