T6-915-20

Radio Transmitter & Receiver Modules T6 / R6 Features • • • • • • Miniature SIL Package Fully Shielded Data Rates Up To 64kbits/S Range upto 200 Metres Single Supply Voltage Industry Pin Compatible QFMT6-XXX Description The QFMT6 AND QFMR6 miniature UHF radio modules enable the implementation of a reliable telemetry link at data rates of up to 64 Kbits/s. The QFMT6 is based on a classical phase lock loop using a crystal reference oscillator. This results in an accurately controlled RF output in the frequency domain. A significant advantage of this is that narrow filtering can then be used in the receiver, which results in high interference immunity. In addition, the modules are fitted with an on-board voltage regulator which enhances performance from improved supply filtering and also ensures a constant RF output level. The QFMR6 is based on the single conversion superhet principle utilising a crystal based phase lock loop for accurate generation of the local oscillator. This allows use of high Q bandpass filters resulting in good adjacent channel selectivity and high interference immunity. The QFMT6 and QFMR6 modules will suit one-to-one and multi-node wireless links in applications including building and car security, remote industrial process monitoring and computer networking. Because of its small size and low power requirements, these modules are ideal for use in portable battery powered wireless applications. These modules may be used within areas of high interference, or ‘radio traffic’. Due to the design, they provide a highly reliable radio link. • • • • • • • Temp range –20°c + 55°c European Versions; 868.4 MHz for 10% duty cycle band 869.85 MHz for 100% duty cycle band American version; 915.0MHz Bandwidth Efficient PLL technology QFMR6-XXX • • • • • • • • • • • • Single conversion FM superheteodyne using RF SAW and ceramic IF filtering at 10.7 MHz Image rejection 60dB Analogue, digital outputs Signal strength output (RSSI) Incorporates AGC for improved dynamic range Dynamic range better than 120dB Single 5V supply Applications Vehicle Alarm Systems Remote Gate Controls Garage Door Openers Domestic And Commercial Security DS306-3 May 03 2003 REG No 277 4001, England. Page 1 Radio Transmitter & Receiver Modules Connection Diagram / Dimensions QFMT6 Transmitter 3.4 mm 31.5 mm T6 / R6 CE 10 mm T6 (Pin spacings 2.54 mm) 19.57 mm 1 2 3 4 5 1.5mm Pin Descriptions RF GND (pin 1) RF Ground pin is internally connected to pin 4 (0V) This pin should ideally be connected to the nearest ground plane (e.g. coax braid, main PCB ground plate etc.) RF OUT (pin 2) 50Ω RF antenna output. To achieve best results the antenna impedance must match that of the module. VCC (pin 3) +Ve supply pin (3.0 to 9.0 volts). The module will generate RF when VCC is present. It is strongly recommended that a 100nF capacitor decouples the supply rail as close as possible to this pin. GND (pin 4) Supply and data ground connection, connected to pin 1. Data IN (pin 5) This input has an impedance of 47KΩ and should ideally be driven by a CMOS logic drive or compatible. The drive circuitry should be supplied with the same supply voltage as the Tx module. Ordering Information: Part No T6-8684-20 T6-8684-64 T6-86985 T6-915-20 T6-915-64 Description SIL Transmitter 868.4MHz 20Kbps Data rate SIL Transmitter 868.4MHz 64Kbps Data rate SIL Transmitter 869.85 MHz SIL Transmitter 915.0 MHz 20Kbps Data rate SIL Transmitter 915.0 MHz 64Kbps Data rate DS306-3 May 03 2003 REG No 277 4001, England. Page 2 Radio Transmitter & Receiver Modules Absolute Maximum Ratings: Transmitter QFMT6 Operating temperature: -20°C to +55°C Storage temperature: -40°C to +100°C Supply Voltage (pin 3) Data input (pin 5) 10V 10V T6 / R6 Electrical Characteristics: Transmitter QFMT6 Pin Supply voltage Current & RF POWER Min. 2.3 typ. 5.0 Max. 10.0 units Volts notes 3 868.40 MHz Supply current @ VCC = 5V RF power RF & Data 3 2 7 1 -50 -50 ±10 35 10 100 15 64000 mA mW dBm dBm KHz KHz mS bits/s µs 1 1 2 2 2nd harmonic Harmonics @ > 1GHz Initial frequency accuracy Modulation bandwidth @ -3dB Power up time to full RF Data rate Data pulse width Notes 1. Measured into a 50Ω impedance a 10mW version is planned for production 2. The limit for the European spec EN 300 220 is –36dBm DS306-3 May 03 2003 REG No 277 4001, England. Page 3 Radio Transmitter & Receiver Modules Connection Diagram / Dimensions QFMR6 Receiver T6 / R6 4.5 mm 49.05 mm CE 17 mm R6 (Pin spacings 2.54 mm) 1.5mm 31 mm 1 2 34 56 7 Pin Descriptions RF IN (pin 1) 50Ω RF input from antenna, connect using shortest possible route. This input is isolated from the internal circuit using the air gap of the front end SAW RF filter RF GND (pin 2) RF ground connection, preferable connected to a solid plane. RSSI / Carrier Detect (pin 3) The Received Signal Strength Indicator provides a DC output voltage proportional to the RF input signal. The amplitude of the RSSI voltage increases with increasing RF signal strength. A simple transistor interface can yield a carrier detect logic output. GND (pin 4) Connect to power supply ground. VCC (pin 5) +Ve supply pin. Operation from a 5V supply able to source6mA at less than Vp-p ripple. AF (pin 6) Audio frequency output. (max 40uA source) DATA OUT (pin 7) CMOS compatible output. This may be used to drive external decoders. To reduce any noise on this output add a 56pF cap from this pin to GND. Ordering Information: Part No R6-8684-20 R6-8684-64 R6-86985 R6-915-20 R6-915-64 Description SIL Receiver 868.40 MHz 20Kbps Data rate SIL Receiver 868.40 MHz 64Kbps Data rate SIL Receiver 869.85 MHz SIL Receiver 915 MHz 20Kbps Data rate SIL Receiver 915 MHz 64Kbps Data rate DS306-3 May 03 2003 REG No 277 4001, England. Page 4 Radio Transmitter & Receiver Modules Absolute Maximum Ratings: Receiver QFMR6 Operating temperature: -10°C to +55°C -40°C to 80°C option available Storage temperature: -40°C to +100°C Supply Voltage (pin 5) RF Input (pin 1) 7V +20dBm (100mw) T6 / R6 Electrical Characteristics: Receiver QFMR6 (20 Kbits/s version) min. Supply voltage Supply current Supply ripple Data output high Data output low RF typ. 5.0 6 =>4.0