RF600T_03 Datasheet, PDF (9/11 Pages) rfsolutions.ltd – Low-Power-Radio Transceiver IC

Low-Power-Radio Transceiver IC
RF600T
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 structure and coding is an important aspect of the design.
The RF600T uses a fully balanced Manchester encoded data protocol designed for optimum use of the
radio transmission path. Manchester encoding enables the 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.
Custom Versions
Customisation of the RF600T is available, please contact our sales department for further information.
Technical Specifications: Absolute Maximum Ratings
Item
Rating
Units
Supply voltage
-0.3 to 6.9
V
Input voltage
-0.3 to VDD + 0.3
V
Output voltage
-0.3 to VDD+ 0.3
V
Max output current
25
mA
Storage temperature
-55 to +125
°C (Note)
Lead soldering temp
300
°C (Note)
ESD rating
4000
V
Note: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device.
Electrical Characteristics
Operating current (average)
Vdd = 2 - 3V
Vdd = 3 - 6.6V
High level Input voltage
Low level input voltage
High level output voltage
Low level output voltage
Output Pin Current rating
LED sink current
Min
0.55V_DD
0.3
0.7V_DD
Typical
0.3
0.7
-
5.0
Max
1.2
1.6
V_DD+0.3
0.15V_DD
0.08V_DD
25
25
Unit
mA
V
V
V
V
mA
mA
DS601-2
11^th Dec 2003
©2003 Reg. No. 227 4001, ENGLAND
Page 9