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RF600E Datasheet Preview

RF600E Datasheet

RF / IR Encoder / Decoder Chipset RF Evaluation Boards

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RF / IR Encoder / Decoder Chipset
RF Evaluation Boards,
RF600E
RF600D
Highly Secure
Protocol
RF Encoder & Decoder IC’s
Simple to Use
Stand Alone Operation
Achieves Maximum Range from RF Modules
1 – 4 Switch Options (15 states)
www.DataSheet4U.coDmecoder Serial Output
Led Indication of Transmission
Directly Compatible with Keeloq Decoder
Easy Learn Feature of Transmitters
Sleep Mode
Up to 48 Transmitters can be Learned
Optimum Range:
AM up to 100m
FM up to 200m
IR up to 20m
Compatible with RF Solutions Systems
Typical Applications
General Purpose Remote Control
Automotive alarm systems
Gate and garage openers
Electronic door locks
Identity tokens
Burglar alarm systems
Encoder
2.0-6.6V operation
Automatic Battery Level Monitor
‘Manchester’ modulation
8 pin DIP/SOIC package
Description
The RF Solutions RF600E, & RF600D are easy to use
encoder and decoder I/C’s. They have been designed to
achieve the maximum possible range from any radio / Infra
Red transmitter receiver set.
Unlike other encoder /decoder devices the RF600E/600D
provide an unprecedented level of security which prevents
copying or grabbing whist also obtaining optimum range
from the transmitter and receiver.
The devices are very easy to use and can be inserted
directly into a circuit. The RF600D has an easy learn
feature enabling it to learn up to 7 unique RF600E encoder
devices in standalone mode or up to 48 encoder devices
when used in conjunction with an external EEPROM.
These devices enable a simple but secure remote
telemetry application whilst obtaining the maximum range
from the radio set.
18
27
RF600E
36
45
Decoder
18 pin DIP/SOIC package
4 Digital Outputs (15 States)
Asynchronous serial interface
4.5V – 5.5V operation
1 18
2 17
3 16
4 15
5 RF600D 14
6 13
7 12
8 11
9 10
DS600-9 Sept ‘04
©2004 Reg. No. 227 4001, ENGLAND
Page 1




rfsolutions

RF600E Datasheet Preview

RF600E Datasheet

RF / IR Encoder / Decoder Chipset RF Evaluation Boards

No Preview Available !

RF / IR Encoder / Decoder Chipset
RF Evaluation Boards,
RF600E
RF600D
Transmitter Encoder RF600E
Operational Description
The RF600E is a simple device to use. As shown in the typical application circuits, it requires only the
addition of input switches and RF circuitry for use as the transmitter in the end application. Transmission is
automatic without user intervention.
The RF600E will wake up upon detecting a switch closure and then delay approximately 6.5 ms for switch
debounce. The encrypted or hopping code portion of the transmission will change every time a button is
pressed, even if the same button is pushed again.
www.DataSheet4U.com
Achieving Optimum Range
Range is dependant on many factors including
1. RF Power output
2. Receiver sensitivity
3. Antenna efficiency
4. Local environmental conditions and any local Interference
5. Data Type which is being transmitted.
Whilst items 1-4 are dependant on the system hardware design, item ‘5’ is equally important and often
overlooked.
Given that there is a legal maximum power output which can be transmitted, and a limit on the sensitivity
of the receiver (usually constrained by cost), and that the antenna can never achieve 0dB loss (100%
efficiency), then the data type is an important aspect of the design.
The RF600E/D chipset use a fully balanced Manchester encoded data protocol designed for optimum use
of the radio transmission path.
The data format automatically includes a pre-amble, synchronisation header, followed by the encrypted
and fixed code data then a CRC check. The actual packet size is 67 bits. Each transmission is followed by
a guard period before another transmission can begin.
The data encryption provides up to four billion changing code combinations and includes the function bits
(based on which buttons were activated) along with other data and synchronization information that the
decoder uses.
Manchester encoding the data enables the superhetrodyne receiver ‘data slicer’ to maintain efficiency for
the duration of the data packet, (unlike many other encoder/decoder systems) which results in reduced bit
errors and therefore ensures maximum range.
Low Battery Indication
The RF600E reads the battery status (voltage) on each operation. If the voltage is detected as being
below 3.8 volts (typical) then a flag bit is transmitted to the decoder where it is made available.
Custom Versions
Custom versions of the RF600E / D chipset are available, programmed with a unique ‘Manufacturers Key’
which means that the transmitter and receiver will respond only to other devices with the same unique
manufacturers key. This provides a bespoke remote chipset for OEM applications. Please contact our
sales department for further information.
DS600-9 Sept ‘04
©2004 Reg. No. 227 4001, ENGLAND
Page 2


Part Number RF600E
Description RF / IR Encoder / Decoder Chipset RF Evaluation Boards
Maker rfsolutions
Total Page 24 Pages
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