User's Manual

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Smart Key ECU

Product Outline

Product Description

Product Type Number

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RF characteristic Nominal frequency 433.92MHz

Local oscillator frequency 52.9025MHz (Crystal)

RF Antenna Internal antenna

LF characteristic Nominal frequency 134.2kHz

Local oscillator frequency 4.2944MHz (Crystal)

LF Antenna External antenna (Ferrite antenna coil)

Transponder

characteristic

Nominal frequency 134.2kHz

Local oscillator frequency 4.00MHz (Ceramic Resonator)

Transponder Antenna External antenna (antenna coil)

Power Supply Nominal supply voltage 12V DC

The Smart Key system is a comfort

feature that allows the user to lock, unlock

the doors of the vehicle

without using a

mechanical key.

The user has to carry with him the Smart

Key Fob as a wireless authentication i

performed when toggle button

or Start

Stop Button inputs are triggered.

For communication with the SMART

Key

FOB, Smart Key ECU

generates a

request (challenge) as an encoded and

modulated signal (134.2 kHz..) at the

inductive antenna outputs and receives

the SMART Key

FOB's response via the

external RF ANT and internal receiver

This product is installed inside the vehicle.

Appearance

Unit : mm

Summary of content (5 pages)

PAGE 1
Smart Key ECU Product Outline Appearance The Smart Key system is a comfort feature that allows the user to lock, unlock the doors of the vehicle without using a mechanical key. The user has to carry with him the Smart Key Fob as a wireless authentication is performed when toggle button or Start Stop Button inputs are triggered. For communication with the SMART Key FOB, Smart Key ECU generates a request (challenge) as an encoded and modulated signal (134.2 kHz..
PAGE 2
. Technical description of the system 2.1 Type number -Smart Key ECU : EN00120 2.2 Specifications - Nominal Power supply voltage : 12VDC Receiver(RF) -Nominal frequency : 433.92MHz -Oscillator frequency : 52.9025MHz (Crystal) -Type of modulation : FSK(F1D) -Type of receiving system : Super-heterodyne -Antenna : RF ANT : Internal antenna Transmitter(LF) -Nominal frequency : 134.2kHz -Oscillator frequency : 4.
PAGE 3
. Outline of the system A Smart Key system is a comfort feature that allows the user to lock, unlock without using a mechanical key. Once the user has accessed into the vehicle, with his Smart Key Fob he has the possibility to switch between terminals (OFF-ACC-IGN) and to start the engine. The user has to carry with him the Smart Key Fob as a wireless authentication is performed when toggle button or Start Stop Button inputs are triggered. 3.1.
PAGE 4
3.4 Installation in vehicle The Smart Key ECU is installed inside the vehicle. Smart Key FOB LF ANT RF ANT TP ANT Smart Key ECU LF ANT Driver RF Receiver Transponder Driver Installation in vehicle Fig. Outline of the System Smart Key FOB Door Handle with LF Antenna Start Stop Button with Transponder Antenna Smart Key ECU with RF Internal Antenna RF Receiver and LF Driver LF Antenna Fig.
PAGE 5
FCC Warning This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.