PEPS keyless solution_bom_schematic_user Manual Operation manual document download

Passive entry and passive start (PEPS), as a new generation of anti-theft technology, is gradually developing and growing. It has gradually entered the mid-range car market from the high-end car market. Not only Mercedes-Benz, BMW and other high-end car manufacturers have widely adopted PKE, such as Ford Mondeo, Nissan Teana and brand new Mazda.And other medium-sized models have also adopted this technology. PEPS is not a traditional key, but a smart key, similar to a smart card. When the driver enters the specified range, the system determines whether it belongs to a legally authorized driver by identification, and then automatically opens the door. After entering the car, the driver only needs to press a button to start the ignition device.


As a global leader in the field of secure and connected vehicles, NXP Semiconductor recently launched the world's first truly independent chip smart car access control solution, called NCF29A1. The solution is packaged in HVQVN32 and integrates a keyless system (PKE), a remote radio frequency transmitter, and an anti-theft locking system. Using this ultra-compact device, a brand new key design and size can be realized in the case of smart phones, smart watches or smart phones to support the improvement of car access control systems through mobile devices. Unlike traditional solutions on the market, NCF29A1 can enhance the experience of automotive customers, realize functions such as welcome lights or automatic locking when leaving, and have a wider control range and lower energy consumption.

Pinjia's PEPS solution is completely based on NXP's NCF29A1 chip. With the help of a compact structure, it can be embedded in the watch on the wrist in order to achieve convenient keyless entry and simple one-key start.

►Product entity diagram

►Plan block diagram

Core technical advantages

1. Automatically unlock within 2 meters

2. When the key is out of power, backup the unlocking function
3. Positioning in the car, keyless start
4. Backward compatible with RKE (Remote Keyless Entry)

►Program specifications

1. NCF29A1 has excellent LF (low frequency) front-end sensitivity, and low quiescent current can achieve the longest battery life.；
2. The distance can be defined, the activation range can be limited, and the actual distance of the remote control function that is related to safety can be controlled.；
3. 3 Single-chip solutions, including IMMO transponders, UHF transmitters and RISC controllers, can realize new safety functions；
4. It can adapt to various frequencies below 1GHz in different regions, from 310 to 447MHz, 868/915MHz (can be configured on request)；
5. Allows multi-channel RF frequency hopping operation, better anti-interference performance and higher stability.；
6. Within a wide dynamic range, locate the key by using the 3D LF interface of RSSI (received signal strength indicator) (the error is within 5 cm).；
7. The minimum number of external components can help system suppliers and depot customers further reduce costs.； 
8. The AES algorithm, which is widely recognized in the industry, helps to effectively prevent key cloning/vehicle theft.； 
9. An ultra-low-power programmable µC core that can be flexibly configured.

BOM document: click to download
Schematic document: Click to download
User Manual document: Click to download