T7G-434-075

FM 433MHz Narrow Band T7 / R7 T7G / R7G Features • Miniature SIL Package • FM Narrow Band • Fully Shielded • Narrow Band Crystal Stabilised • Data Rates Up To 20 Kbits/S • En 300-220 Compliant • Data & AF Out • CD Implemented On Data Output • RSSI Output • Selective Ceramic IF Filters T7/R7 Modules • Wide Operating Voltage (2.2 - 10 Vdc). • Optimal Range 600 metres T7G/R7G Modules • 3 or 5 Volt Operating Voltage • 3 Channels available from Stock • Optimal Range 1,000 metres Applications • Telemetry Systems • Wireless Networking • Domestic And Commercial Systems Wireless Security • • Panic Attack Facility Remote Control For Cranes Etc General Description The T7/R7 series are miniature narrow band transmitter and receiver UHF radio modules, which enable the implementation of a simple telemetry link at data rates up to 20Kbits/s. These narrow band UHF radio modules provide a very high RF performance for general purpose applications. The transmitter modules have a power output of up to 25mW. When combined with a very high receiver sensitivity these modules obtain a very high performance of range and reliability within the 433MHz band. Available for operation between 433.075 and 434.725 MHz in 25KHz steps there are currently 3 different frequency channels available from stock. (others available to special order) The T7G and R7G genesis modules represent the latest generation of narrow band transmitters. They retain the same industry standard footprints and are fully compatible with the T7 and R7 modules to enable incorporation into both new and existing designs. The improved sensitivity of the R7G enables a range of up to 1Km when used with the T7G modules. DS307-7 Oct 05 ©2004 REG No 277 4001, England. Page 1 FM 433MHz Narrow Band Frequency Channels T7 / R7 These modules are available at 4345.075MHz only. T7 / R7 T7G / R7G T7G / R7G These modules are available in 34 discrete frequency channels from 433.075 to 434.725 MHz in 50KHz steps. The table below shows the list of possible frequency channels. CH. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 (1) Stock Item (2) Future Development FREQ/MHz 433.075(2) 433.125(2) 433.175(2) 433.225(2) 433.275(2) 433.325(2) 433.375(2) 433.425(2) 433.475(2) 433.525(2) 433.575(2) 433.625(2) 433.675(2) 433.725(2) 433.775(2) 433.825(2) 433.875(2) CH. 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 FREQ/MHz 433.925(2) 433.975(2) 434.025(2) 434.075 (1) 434.125(2) 434.175(2) 434.225(1) 434.275(2) 434.325 (2) 434.375(2) 434.425(2) 434.475(2) 434.525 (1) 434.575(2) 434.625(2) 434.675(2) 434.725(2) DS307-7 Oct 05 ©2004 REG No 277 4001, England. Page 2 FM 433MHz Narrow Band Absolute Maximum Ratings: Transmitter (all voltage versions) T7 Operating Temperature Storage Temperature Supply Voltage Data Input Min. -25°C -40°C Max. +55°C +100°C 12V 10V Min. -10°C -40°C T7G T7 / R7 T7G / R7G Max. +55°C +100°C 5.5V 5.5V Electrical Characteristics: Transmitter Min. DC Levels Supply (5V variants) Supply (3V variants) Current & RF Power Supply current @ VCC = 5V RF output power @ VCC = 5V Supply current @ VCC = 3V RF output power @ VCC = 3V RF & Data (All Variants) 2nd harmonic -60 -40 Harmonics @ > -60 -50 1GHz Initial frequency +/-25 +/-25 accuracy Frequency accuracy +/-30 over full temp range Modulation 20 30 bandwidth @ -3dB Power up time to full 5 5 RF Data rate 20 Data pulse width 50 50 Notes 1. Measured into a 50Ω impedance. 2. The limit for the European spec EN 300 220 is -36dBm 3. A +/-2.5KHz Deviation on the RF carrier is also available Part No T7-434-075 T7G-434-075 T7G-434-075-3V T7G-434-225 T7G-434-525 T7G-434-525-3V DS307-7 Oct 05 T7 Typ. 5.0 - Max. 12.0 - Min. 4.5 2.2 T7G Typ. 5.0 3.0 Max. 5.5 4.0 Units Pin Notes 2.2 - Volts Volts 3 3 7 3 - 24 25 22 13 mA mW mA mW 3 2 3 2 1 1 1 1 dBm dBm Hz ±27 KHz KHz ms 20 kbits/s µs 2 2 3 Description SIL Transmitter 434.075MHz SIL Transmitter 434.075MHz SIL Transmitter 434.075MHz, 3 Volt version SIL Transmitter 434.225MHz SIL Transmitter 434.525MHz SIL Transmitter 434.525MHz, 3 Volt version Page 3 ©2004 REG No 277 4001, England. FM 433MHz Narrow Band Absolute Maximum Ratings: Receiver R7 Operating Temperature Storage Temperature Supply Voltage RF Input Min. -10°C -40°C Max. +55°C +100°C 7V +20dBm (100mW) Min. -10°C -40°C R7G T7 / R7 T7G / R7G Max. +55°C +100°C 5.5V +10dBm (10mW) Note: Receiver modules with operating temperatures from -40°C to +80°C are also available Electrical Characteristics: Receiver Min. DC Levels Supply voltage Supply current Supply ripple Data output high Data output low RF RF sensitivity IF Bandwidth Initial frequency accuracy Max R.F. input E.M.C. Spurious responses up to 1GHz LO leakage, conducted LO leakage, radiated Image rejection DYNAMIC TIMING Power up to stable data (With RF signal present) Signal to stable data (With PSU already on) Power up to valid RSSI ( With RF signal Present ) Mark:space ratio Bit rate 4.5 R7 Typ. 5 6 =>4.5