Radiometrix Hartcran House, 231 Kenton Lane, Harrow, HA3 8RP, England 23 April 2007 Tel: +44 (0) 20 8909 9595, Fax: +44 (0) 20 8909 2233 TX3B-xxx.xx-64 869MHz869MHz Wide Band F Wide Band FMM Transm Transmiittertter 869MHz869MHz Wide Band F Wide Band FMM Transm Transmiittertter The TX3B radio transmitter module is an enhanced high power replacement for the European version TX3A-869-64 transmitter Two frequency variants are available in the European unlicensed band, one with 5mW RF power with no duty cycle restriction other with 8mW RF power with 1% duty cycle restriction. Figure 1: TX3B-869.85-64 transmitter Features Complies with European harmonised standards EN 300 220 and EN 301 489 869.85MHz 5mW 100% duty cycle or 868.30MHz 8mW 1% duty cycle RF power output +9dBm (8mW) on 868.30MHz +7dBm (5mW) on 869.85MHz Data rates up to 64kbps Crystal controlled PLL FM transmit circuitry Supply: 2.9V - 16V 14mA (8mW) 32 x 12.5 x 3.8mm Available for operation in the 868-870MHz band in Europe, it combine full screening with internal filtering to ensure EMC compliance by minimising spurious radiation and susceptibility. The TX3B and matching RX3A will suit one-to-one and multi-node wireless links in such applications as car and building security, EPOS and inventory tracking, remote industrial process monitoring and data networks. 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. Applications Tracing and asset tracking systems Handheld terminals Meter reading systems Industrial telemetry and telecommand Data loggers In-building environmental monitoring and control Security and fire alarms Vehicle data up/download sales radiometrix.com TX3B - Short Technical Overview www.radiometrix.com NEWFunctional description The TX3B transmitter module uses a frequency modulated crystal-locked PLL and operates between 2.9V and 16V at a current of 14mA nominal. At 3V supply it delivers nominally 9dBm (8mW) RF output. The SIL style TX3A measures 32 x 12 x 3.8 mm, excluding pins. supply 5 regulator 2.9 - 16V 4 En 868MHz band ref 35kHz pass filter 64 PA 2 osc LPF RF out V C O 7 TXD Loop 3 Filter RF gnd 6 1 0V User interface 3.8 mm 32 mm 12.0 12.5 mm mm Radiometrix TX3B PCB level 1 = RF GND 15.24 mm 2 = RF OUT 3 = RF GND 2 3 4 5 6 7 1 4 = En 5 = Vcc 6 = 0V 7 = TXD 7 holes, 0.7 mm dia, pin spacing 2.54 mm Fig. 2: TX3B physical dimensions TX3B pin Name Function 1, 3 RFgnd RF Ground 2 RF out 50 RF output to the antenna 4 EN Pull high to enable Transmitter 5 VCC 2.9V - 16V DC power supply 6 0V Ground 7 TXD DC coupled input for 3V CMOS logic. R = 100k in Note: Pin out as TX2A and standard TX3A Ordering information For European applications in the 868 - 870MHz band: 869.85MHz Transmitter: TX3B-869.85-64 Matching RX3A receiver: RX3A-869.85-10 (10kbps version) RX3A-869.85-64 (64kbps version) 868.30MHz Transmitter: TX3B-868.30-64 Matching RX3A receiver: RX3A-868.30-10 (10kbps version) RX3A-868.30-64 (64kbps version) sales radiometrix.com TX3B - Short Technical Overview www.radiometrix.com