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Passive Keyless Entry Chip
More information about this product upon NDA. Please access our NDA FAQS page
The NCF29AG/NCF29AH is an extremely compact single chip solution, ideally suited for automotive applications with combined vehicle immobilization and keyless entry/start functions. The device incorporates a highly sensitive 125 kHz wake-up receive, a highly accurate RSSI measurement unit, a UHF transmitter, a LF security transponder and a RISC controller on the same chip and requires only a few external components. Thanks to the outstanding LF sensitivity the chip is enabling unprecedented passive keyless range. The security transponder operation is supported even with depleted or without an external battery supply. The device supports all field proven NXP load modulation transponders, and in addition, a new charge and talk transponder using active back transmission.
For additional information and sample availability, contact your local Sales Office.
Product Details
Features
- Superior LF range at Ultra Low Power
- > 2 years battery life time (CR2032)
- Backwards compatible to NXP predecessor devices
- External 32 kHz Xtal is optional
- Robust operation in LF jammed environments
- Narrow Band RSSI ± 3% accuracy
- NXP legacy load modulation transponder
- New charge and talk transponder bosting the transponder range
- Single lithium cell operation, 1.95 V to 3.6 V
- Single chip security transponder and keyless entry solution optionally complemented by NXP MEMS motion sensor
- Optional relay station attack hardening with NXP NCJ29D5CHN for secure ranging
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