RF600T-EVAL RFSOLUTIONS [rfsolutions.ltd], RF600T-EVAL Datasheet

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RF600T-EVAL

Manufacturer Part Number
RF600T-EVAL
Description
Smart Com Radio Transceiver IC
Manufacturer
RFSOLUTIONS [rfsolutions.ltd]
Datasheet
DS601-4
The RF600T provides a simple interface between TTL level asynchronous serial data sources and standard
RF modules (Transceiver, Transmitter or Receiver) with minimal interface required.
The RF600T performs all the necessary data manipulation and encryption required by the Radio module to
achieve a reliable radio link whilst providing a simple data interface to the users controller.
The device has been designed to obtain the maximum range from the Radio medium using automatic data
packet generation with ‘Manchester’ encoding and CRC based error checking. In addition, in addressed
mode, automatic retries ensure that the host is informed of successful or failed data packet delivery. The
RF600T uses control lines to handle the flow of data to and from the host, and incorporates a 190 byte data
buffer.
Typical Applications
Hardware Features
Enables Easy Radio Communications
Connects directly to RF Module
Simple CMOS/TTL Data Interface
Performs all Data Encryption for Reliable Data Comms.
Addressed Mode With Acknowledge
Broadcast Mode
Automatic Retry
Achieves Maximum Range From RF Modules
Optional host Flow Control
Two Telemetry I/O Lines (addressed mode only)
Compatible With Most RF Modules
Wireless RS232
Cable Replacement
Alarm Systems
Communications Systems
Local Area Networking
3.0 – 5.5V Operation. (2.0 – 5.5V optional)
190 Byte data Buffer
‘Manchester’ Modulation
CRC Error Checking
18 pin DIP/SOIC Package
2 Digital Telemetry Lines (addressed mode only)
Asynchronous Serial Host Interface
25
RF600T-EVAL
Part Number
th
RF600T-SO
Smart Com Radio Transceiver IC
JUN 2004
RF600T
Evaluation Kit for Smart Radio Modules
Transceiver IC PDIP Package
Transceiver IC SMT Package
©2004 Reg. No. 227 4001, ENGLAND
Description
1
2
3
4
5
6
7
8
9
LEARN
GND
RxR
MODE
TxH
CTS
RTS
RxH
TxR
Page 1
RF600T
18pin PDIP
18pin SO
Package
OUT1
OUT2
OSC1
RxEN
TxEN
OSC2
Vcc
IN2
IN1
18
15
17
16
14
13
12
11
10
RF600T

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RF600T-EVAL Summary of contents

Page 1

... The RF600T uses control lines to handle the flow of data to and from the host, and incorporates a 190 byte data buffer. Part Number RF600T RF600T-SO RF600T-EVAL th DS601-4 25 JUN 2004 Description ...

Page 2

... RF600T and its associated radio transceiver module. The RF600T must be configured before power up for either the broadcast or addressed mode of operation by means of the MODE pin (6). Note that for security, broadcast nodes will not receive data from addressed nodes. ...

Page 3

... System Operation – Addressed Mode Each RF600T is programmed at manufacture with a 24 bit serial number which uniquely identifies the device addressed point to point system, these serial numbers are used as the device address for the nodes in the system and non-volatile eeprom memory in the device stores the address of the ‘ ...

Page 4

... As shown in the pin function list above, a number of output pins have dual usage. During power up they are briefly configured as inputs to allow the selection of system options as shown below. Note that any load connected to these pins must not bias the RF600T pin such that the option setting network is significantly disturbed. ...

Page 5

... RxH Serial data for the host which has been received over the RF link. Idle mark ‘1’. CTS Handshake line to the host. When ‘0’ tells the host that it is Clear To Send data to the RF600T for transmission over the RF link. RTS Handshake line from the host. When ‘ ...

Page 6

... The logic of these outputs is such that when the RF600T wishes to transmit, it will take the RXEN line high and the TXEN line low. When the RF600T wishes to receive, it will take the RXEN line low and the TXEN line high. ...

Page 7

... Testing of a prototype system can best be carried out using two PC’s running HyperTerminal with the properties set as follows. (options not listed can be left in default state) Connect to: direct to COM1 or COM2 Configure (port settings): Baud rate: 9600 or 19200 depending on RF600T setting. Data bits: 8 Parity: none Stop bits: 1 Flow control: hardware ...

Page 8

... Smart Com Radio Transceiver IC Application Circuit The circuit shown below is for a typical RF600T application way ‘D’ connector provides an RS232 termination to the host system and the RXQ1 hybrid contains all of the circuitry required to implement the RF path. In many applications it will be possible to dispense with the option links and hard-wire the options to the desired settings ...

Page 9

... TXDATA_HOST input of one RF600T will then appear on the RXDATA_HOST pin of the other RF600T. Note that in this circuit the host data rate is fixed at 9600 bauds and the ‘RF’ data element time is 400 us. Either broadcast or addressed modes may be used depending on the setting of the option link. ...

Page 10

... 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 ...

Page 11

... LED sink current th DS601-4 25 JUN 2004 Rating Units -0.3 to 6.9 -0.3 to VDD + 0.3 -0.3 to VDD+ 0.3 25 -55 to +125 °C (Note) 300 °C (Note) 4000 Min Typical 0.3 0.7 0.55V V DD 0.3 0.15V 0.7V DD 0.08V - 5.0 ©2004 Reg. No. 227 4001, ENGLAND RF600T Max Unit 1.2 mA 1 Page 11 ...

Page 12

... Smart Com Radio Transceiver IC th DS601-4 25 JUN 2004 ©2004 Reg. No. 227 4001, ENGLAND RF600T Page 12 ...

Page 13

... Use of R.F. Solutions as critical components in life support systems is not authorised except with express written approval from R. F. Solutions Ltd. th DS601-4 25 JUN 2004 R. F. Solutions Ltd., Unit 21, Cliffe Industrial Estate, Lewes, E Sussex, BN8 6JL, England Fax +44 (0)1273 480 661 Email sales@rfsolutions.co.uk http://www.rfsolutions.co.uk ©2004 Reg. No. 227 4001, ENGLAND RF600T Page 13 ...

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