Remote Keyless Entry (RKE)
A remote keyless entry (RKE) system is designed to lock and unlock vehicle doors remotely. When a driver pushes a button on a key fob, a transmitter in it emits an modulated RF signal. A vehicle's on-board receiver demodulates the RF signal and provides the demodulated data to a microcontroller.
详情介绍
Remote Keyless Entry (RKE)
A remote keyless entry (RKE) system is designed to lock and unlock vehicle doors remotely. When a driver pushes a button on a key fob, a transmitter in it emits an modulated RF signal. A vehicle's on-board receiver demodulates the RF signal and provides the demodulated data to a microcontroller.
RKE System Block Diagram
Recommended Products
- RF-Devices
| Part Number | Functions Availability | Frequency(Hz) | FSK | ASK | Package | Operating Voltage | |||
|---|---|---|---|---|---|---|---|---|---|
| TX | RX | Local | RF | IF | |||||
| TC32306FTG |  |
|
VCO +PLL |
315 M to 915 M | 230 k/280 k (built in) |
|
|
QFN36 | 2.0 to 5.5 V |
Note: This transceiver IC can also be used as a receive-only IC.
- Automotive Microcontrollers
| Part Number | ROM | RAM | Remarks | Package | Operating Voltage |
|---|---|---|---|---|---|
| TMP89FM82TDUG | 32 KB | 2 KB |
|
LQFP 48 | 4.5 to 5.5 V (@8MHz) |
| TMPM358FDTFG | 512 KB | 80 KB |
|
LQFP100 | 4.5 to 5.5 V |
- System Power Supply ICs
| Part Number | Functions | Output Voltage | Output Current | Package | Operating Voltage |
|---|---|---|---|---|---|
| TB9005FNG | CPU voltage regulator (with WDT) |
5 V | 8 mA | SSOP20 | 6 to 18 V |
| TB9021FNG | CPU voltage regulator (with WDT) |
5 V | 200 mA | TSSOP16 | 6 to 18 V |
| TB9042FTG** | CPU voltage regulator |
1.5/1.2 V 5 V 5 V 5/3.3 V(Backup) |
1000 mA 400 mA 100 mA 10 mA |
HQFN52 | 7 to 20 V |
| TB9044AFNG** | CPU voltage regulator DC/DC + LDO (with WDT, SPI) |
5V 5V 5V 5 V |
400 mA 100 mA 100 mA 100 mA |
HTSSOP48 | 2.7 to 18 V |
**: Under development