User Manual Transceiver Module TC695 UM-TC695-V1-0.DOC [ Word 2000 ] sedh/dous HBC Page 1 / 6 – Transceiver Module TC 695 HBC-radiomatic GmbH • 74564 Crailsheim • Germany Information and specifications subject to change without notice. www.hbc-radiomatic.
User Manual Transceiver Module TC695 Page 2 / 6 UM-TC695-V1-0.DOC [ Word 2000 ] sedh/dous Manufactured by: HBC-radiomatic GmbH Haller Strasse 47 – 53 74564 Crailsheim, Germany Telephone: +49 ( 0 ) 79 51 – 3 93 – 0 Fax: +49 ( 0 ) 79 51 – 3 93 – 50 E-mail: info@radiomatic.com http://www.hbc-radiomatic.com HBC-radiomatic GmbH is not liable for any misprints or errors! – All rights reserved. ™ HBC-radiomatic is a registered German trademark.
User Manual Transceiver Module TC695 UM-TC695-V1-0.DOC [ Word 2000 ] sedh/dous Page 3 / 6 Table of Contents Warnings ........................................................................ 4 Function description of the TC695 ................................. 5 Technical Data ................................................................ 8 Appendix: Block diagram HBC-radiomatic GmbH • 74564 Crailsheim • Germany Information and specifications subject to change without notice. www.hbc-radiomatic.
User Manual Transceiver Module TC695 Page 4 / 6 UM-TC695-V1-0.DOC [ Word 2000 ] sedh/dous Warnings This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference and (2) this device must accept any interference received, including interference that may cause undesired operation.
User Manual Transceiver Module TC695 UM-TC695-V1-0.DOC [ Word 2000 ] sedh/dous Page 5 / 6 Function description of the TC695 UHF transceiver for data transfer. Consisting of: 1 2 3 4 General First receiver Second receiver Transmitter 1 General: The TC695 is a UHF transceiver with fast transmit-receive switchover and 2 independent receivers. The frequency range is 902 – 917 MHz, according to the hardware version. The operating voltage is 5.6-7.2 Volts for battery-operated units with five 1.2V cells.
User Manual Transceiver Module TC695 Page 6 / 6 UM-TC695-V1-0.DOC [ Word 2000 ] sedh/dous 2.3 Oscillator and frequency synthesizer The VCO1 generates the first oscillator frequency with a power of about 0 dBm. With Q1 the signal is amplified to about 6dBm. A portion of the amplitude of the oscillator signal is led back to the double synthesizer U8 via the voltage divider R29-R32 for reference voltage formation. The synthesizer U8 is fed with 12.8 MHz via a highly stable (+-2ppm 30/+70 deg.
User Manual Transceiver Module TC695 UM-TC695-V1-0.DOC [ Word 2000 ] sedh/dous Page 7 / 6 3 Transmitter: 3.1 Transmission oscillator The transmitter operates according to the mixing principle. Transmission oscillator Q10 generates the frequency 45 MHz with the quartz oscillator XT3 and is amplified via Q5 and Q6 to about 10 dBm and then travels via the transmit-receive switch U6 to the mixer MI1 3.
User Manual Transceiver Module TC695 Page 8 / 6 UM-TC695-V1-0.DOC [ Word 2000 ] sedh/dous Technical Data Common data (RX+TX): Frequency range: 902.025 ... 918.000 MHz Operating voltage: 5.6 ... 7.2 V Channel pattern: 25 kHz LF transmission bandwidth: 150 Hz .... 4.8 kHz Modulation type: F9D Operating temperature range: -30 ...
User Manual Transceiver Module TC695 UM-TC695-V1-0.DOC [ Word 2000 ] sedh/dous Page 9 / 6 Request options at TC695: 1. Byte: IdentByte = h72 (ID code for TC695 transceiver) 2. Byte: Number of bytes in this string (HBC protocol agreement) = h07 3. Byte: Operating RF channel = 0xx ( up to max. h7F) 4.
User Manual Transceiver Module TC695 Page 10 / 6 www.hbc-radiomatic.com 2004-12-15 UM-TC695-V1-0.DOC [ Word 2000 ] sedh/dous HBC-radiomatic GmbH • 74564 Crailsheim • Germany Information and specifications subject to change without notice.
