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Radio Frequency (RF) Communications provide a way to add a vast array of additional functionality and convenience to the vehicle and the home. RF communications enable a wide variety of safety and comfort features which include:
Automotive
•
Remote Keyless Entry (RKE)
• Passive Entry (PE)
• Tire Pressure Monitoring Systems (TPMS)
Consumer and Industrial
• Home and building control
• Industrial Automation
Freescale has a complete portfolio of low power wireless solutions, from standalone radio-frequency devices to system-in-packages embedding industry–leading microcontrollers. Optimized for wireless access, control and monitoring applications in automotive, consumer and industrial markets, these devices support all ISM frequency bands (315, 434, 868 and 915MHz) and offer best throughput and power performances while minimizing current consumption.
Select the best product according to features list below:
| Product Type |
Transmitter |
Receiver |
Transceiver |
TAG Reader |
| Frequency |
315, 434, 868, 915 MHz |
304, 315, 426, 434, 868, 915 MHz |
304, 315, 426, 434, 868, 915 MHz |
125 KHz, 315-915 MHz |
| Operating Temp. Range |
-40°C to +125°C |
-40°C to +85°C |
-40°C to +85°C |
-40°C to +125°C |
| Data Rate (max) |
11 kbps |
20 kbps |
20 kbps |
8 kbps |
| Tx Output Power |
5 dBm |
N/A |
7 dBm |
|
| Tx Current |
4.4 mA |
N/A |
13.5 mA |
N/A |
| Rx Sensitivity |
N/A |
-108 dBm |
-108 dBm |
5mV |
| Rx Current |
N/A |
9.2 mA |
9.2 mA |
1.5mA |
| Modulation |
OOK, FSK |
OOK, FSK |
OOK, FSK |
|
Solutions
Remote Keyless Entry (RKE) systems
RKE systems that make it possible to unlock doors and release trunk latches remotely, using a key fob or other similar device, are among the most popular vehicle access applications today. Most RKE systems also combine anti-theft alarms and panic buttons, features that enhance the system by adding the benefit of security. Freescale was one of the early pioneers in RKE system development and is now the first to offer an integrated low-voltage microcontroller with embedded RF for developers of RKE applications.
Vehicle immobilization systems
More and more automotive manufacturers worldwide are incorporating anti-theft vehicle immobilization technology into their designs, with the goal of increasing security and decreasing theft. In fact, European automakers have been mandated to include immobilization systems in all new vehicles because European insurance companies now require immobilization systems as a condition of acquiring insurance. This trend, which began in Germany, is expected to become the defacto standard for the entire auto industry in just a few short years. Freescale's vehicle access control solutions, which include the microcontrollers, tag readers, transmitters and receivers to combine RKE and vehicle immobilization in one system, offer a quick design-in solution to meet this growing market.
Passive entry systems
In a passive entry system, no specific user action—such as inserting a key in a lock—is necessary to achieve secure vehicle entry. Freescale is paving the way for new applications in hands-free passive entry, by developing complete system-level solutions with optimized hardware and software partitioning.
