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TRXQ1-433

P1-P3P4-P6P7-P9P10-P12
DS0353-9 March ‘05 ©2005 Reg. No. 227 4001, ENGLAND Page 1
TRXQ1
RXQ1
FM N
ARROW BAND TRANSCEIVERS
•
RF Transceiver or Intelligent Modem Versions
•
Host Data Rate upto 19,200 Baud
•
Data Rates to 20 K baud.
•
2 Selectable RF Channels
•
Narrowband Crystal Controlled
•
Optimal Range 200m
•
Supply Voltage 3-5V
•
Very Stable Operating Frequency
•
Low Profile Ceramic DIL Package
• Operates from –20 to +85
0
C
RXQ1 Version
•
RF Transceiver Version Only
TRXQ1 Version
•
Transceiver With RF600T Incorporated
•
Serial Data Interface with Handshake
•
Selectable Dumb or Intelligent Modem Modes
•
On Board 190 Byte Buffer
Description
The RXQ1 / TRXQ1 radio transceiver modules provide reliable wireless communications for the transfer of
data at rates of up to 20 K baud. Their unique features of narrow band operation and user channel selection
combined with excellent interference rejection make them an ideal choice for next generation applications.
Operating within the 433.92MHz band the modules can operate in two narrow band channels; 433.92 MHz
and 434.33MHz. The modules use a crystal controlled design which provides narrow band performance which
is far superior to other wideband ‘SAW’ based designs.
The TRXQ1 Smart Radio Transceiver has the functions of a complete radio modem, it simply requires
CMOS/TTL data at the transmit input and the corresponding transceiver(s) output the same data
There RXQ1 provides a basic Radio transceiver.
Possible applications include one-to-one and multi-node wireless links in applications including car and
building security, EPOS, inventory tracking, remote industrial process monitoring and computer networking.
Because of their small size and low power requirements, both modules are ideal for use in portable, battery-
powered applications such as hand-held terminals.
Part Numbering
Part Number Description
TRXQ1-433F Smart Transceiver Module 433MHz
FM-RXQ1-433 Transceiver Module 433MHz
RF600T-EVAL Evaluation Kit for Smart Radio Modules
Applications
•
Wireless Security Systems
•
EPOS Terminals
•
Sensor Data logging
•
Remote Telemetry & Telecommand
•
Remote Meter Reading
DS0353-9 March ‘05 ©2005 Reg. No. 227 4001, ENGLAND Page 2
TRXQ1
RXQ1
FM N
ARROW BAND TRANSCEIVERS
RXQ1 Pinout Detail
RF Gnd. 1
Antenna 2
RF Gnd. 3
10 Gnd.
11 nc
12 Rx Data
13 nc
14 Tx Data
15 Tx Select
16 Rx Select
17 Vcc
18 Channel Select
Top View
RXQ1
FM Transceiver
nc 4
Gnd. 5
nc 6
nc 7
nc 8
Gnd. 9
22.86
30.48
7
Pin Descriptions
Pin
Number
Name Type Description
1,3
RF GND
In
For best results, these pins should be connected to the ground
plane against which the antenna radiates.
2
Antenna
In / Out
Nominal 50 ohm input/output impedance capacitively isolated from
the internal circuit.
4, 6, 7, 8,
11, 13
nc
- No Connection
5, 9, 10
GND
In Connect to 0 volts.
12
Rx
Out
Received data output to host controller (CMOS logic out)
representing true data as supplied to the transmitter.
14
Tx
In
Transmit data input from host controller
Data input to the transmitter can be directly interfaced to CMOS
logic drive operating on the same supply voltage as the transceiver
15
Tx SELECT
In Transmit select. Active LOW.
16
Rx SELECT
In Receive select. Active LOW.
17
Vcc
In
Positive supply voltage connection. Decouple with 100n ceramic
capacitor to ground.
18
CS
In
Channel Select;
Logic 0 selects 433.92MHz
Logic 1 selects 434.33MHz
Operation Table
Tx Select RX Select Function
0 0 Power Down Mode
0 1 Transmit Mode
1 0 Receive Mode
1 1 Power Down Mode
DS0353-9 March ‘05 ©2005 Reg. No. 227 4001, ENGLAND Page 3
TRXQ1
RXQ1
FM N
ARROW BAND TRANSCEIVERS
RXQ1 Operating Parameters
Absolute Maximum Ratings
Operating temperature: -20
0
C to +70
0
C
Storage temperature: -40
0
C to +100
0
C
Supply Voltage -0.3 to 6V
Data input -0.3 to Vcc + 0.3v
Electrical Characteristics:
Min. Typ. Max. Units Notes
DC Levels
Supply voltage 2.7 3 5.25 V 1
Supply current (Transmit Mode) 26 mA
Supply current (Receive Mode) 12 mA
Supply current (Standby Mode) 8 uA
Data input/output high 0.7xVcc Vcc V
Data input/output low 0 0.3xVcc V
RF
Working Frequency
433.92 /
434.33
MHz
Receiver sensitivity -100 dBm
RF power out (transmitter) 5 dBm
Into 50
Ω
FM Deviation +/- 15 KHz
IF Bandwidth 65 85 KHz
Harmonic Spurious Emissions -50 dBc
Operating Temperature -20 +70 Deg C
Dynamic Timing
Power up to stable receiver data out 5 mS 2
Power up to full RF out 4 mS 2
Standby to RX mode 3 mS
Standby to TX mode 2 mS
Changing from TX to RX mode 3 mS
Changing from RX to TX mode 1 mS
Data Bit rate 20 20,000 bps
Notes
1. Supply voltage should have <10mV ripple.
RXQ1 Applications
The RXQ1 is a dual band ‘transceiver only’ RF module, which has applications in many areas where reliable
half duplex communications are required over ranges up to 200 metres. The crystal controlled narrow band
design gives optimum performance in the 433 MHz band and the dual channel capability allows for the design
of more complex networks than had previously been possible.
P1-P3P4-P6P7-P9P10-P12

TRXQ1-433

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Description:
RF TXRX MODULE ISM<1GHZ
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