Omron Automotive Electronics Korea OKA-350R RF Keyless Entry System (Receiver) User Manual HD FCC IC
Omron Automotive Electronics Korea Co., Ltd. RF Keyless Entry System (Receiver) HD FCC IC
Users Manual
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OMRON
AUTOMOTIVE
ELECTRONICS
KOREA
OKA - 350R
RECEIVER, RF Keyless Entry System
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Table of contents
1. Constitution of the Radio Frequency Keyless Entry system Controller
for vehicle ................................................................................................................. 1
2. Operation Description ............................................. 2
3. Block diagram ........................................................................................................... 3
4. Specification ............................................................................................................... 4
5. Features ...................................................................................................................... 5
6. Derivatives ................................................................................................................. 5
7. PCB ............................................................................................................................. 6
7.1 Circuit diagram ................................................................................................... 6
7.2 Parts layout ...................................................................................................... 7
7.3 Parts list .............................................................................................................. 11
7.4 Connector ............................................................................................................ 14
7.5 Photographs ........................................................................................................ 15
8. RF module ................................................................................................................ 18
8.1 Block diagram ................................................................................................... 18
8.2 Circuit diagram .................................................................................................. 19
8.3 Part layout ......................................................................................................... 20
8.4 Part list .............................................................................................................. 21
9. Sticker ......................................................................................................................... 23
Caution: Any changes or modifications to the equipment not expressly approved by the
party responsible for compliance could void user's authority to operate the equipment.
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1. Constitution of the Radio Frequency Keyless Entry
System for vehicle
The radio frequency keyless entry is a system that it controllers locking and unlocking the door by
wireless remote controller. This system consists of three components. The TRANSMITTER is a device that
transmits the signal when the button is pressed. The transmission signal consists of several synchronous
codes, unique identification code , security code and function code. The RECEIVER is fixed inside the
vehicle. It works intermittently to prevent the battery exhaustion. When the receiver detects the synchronous
code , it runs continuously to receive the signals completely. After receiving the signal, the receiver decides
which operation will be performed. The user can select the following operations by pressing the button of
the remote transmitter.
OPERATION ACTION
LOCK lock the door
UNLOCK unlock the door
TRUNK open the trunk
PANIC alarm the siren
Transmitter
f = 313.85MHz
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2. Operation description
REMOTE TRANSMITTE
LOCK
UNLOCK
TRUNK
LOCK
UNLOCK
TRUNK
PANICPANIC
You can lock and unlock your vehicle with the remote transmitter.
LOCK
When you push the LOCK button, all the doors will lock.
You cannot lock any of the doors with the remote transmitter if any door is open or the key is the
ignition switch.
UNLOCK
When you push the UNLOCK button, all the doors will unlock.
You cannot unlock any of the doors with the remote transmitter if any door is open or the key is in
the ignition switch.
TRUNK
When you push continuously the TRUNK button during 0.5s, TRUNK will open.
PANIC
When you push the PANIC button, Siren will alarm.
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3. Block diagram
This is the block diagram concerning to the receiver.
POWER 12V(car battery)
SOURCE(5V)
RECEIVING data
MODULE EEPROM
16BIT
CPU
input
output DRIVING DOORLOCK
CIRCUIT ACTUATOR
4MHz
Signal of vehicle status
figure 3.1 block diagram of the transmitter
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4. Specification
4.1 CPU
Type
ROM
RAM
Clock frequency
Clock frequency generation
Package
MB90F867(16bit)
Manufacturer : FUJITSU
128KByte
6KByte
4MHz
Crystal resonator
100pin QFP
4.2 EEPROM
Type
Memory
Package
S-93C56XXX
Manufacturer: Seiko. Elec
2Kbit
8pin SOP
4.3 RF Receiver Module
Type
Local clock frequency
Frequency generation
Modulation Scheme
Bandwidth
Carrier Detect Sensitivity
G8X21RX
Manufacturer: OMRON IDA.
313.85MHz
Crystal resonator
FM (Single Superheterodyne)
±200KHz
11dBuVemf
4.4 Others
Dimension
Weigh
Battery
Operation Voltage,Current
Operation Temperature
150mm×100mm×34mm
262g (Antenna included)
CAR Battery(DC 12V)
DC12V,60mA(4mA on standby)
-30℃˜+80℃
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5. Features
5.1 Door lock control
The LOCK relay in the receiver drives the door lock actuators to "LOCK"-side when LOCK button
of transmitter was pressed. The UNLOCK relay in the receiver drives the door lock actuators
to
"UNLOCK"-side when UNLOCK button of transmitter was pressed.
These facility doesn't work if the key is inserted the key clinder or the door is open.
5.2 Battery saving
Because of the power source of the receiver is car Battery, it is very important problem to minimize
a power consumption. The receiver's CPU works intermittently to prevent the battery exhaustion.
6. Derivatives
OKA-350R is an integrated controller for a car body control, includes the keyless entry receiver.
The integrated. controller consists of the multiple control functions as follows, centralized door lock,
turn-signal lamp, room-lamp, intermitted wiper, power window timer, ignition key illumination,
warning buzzer and so on.