Announcing the new UHF FM narrow band transceiver module STD-302Z for 434 MHz

June 28, 2018 | 16:04
Image: Circuit Design, STD-302Z
Image: Circuit Design, STD-302Z
Circuit Design Inc, the leading supplier of low power radio modules, has recently developed the UHF FM narrow band transceiver module STD-302Z for industrial remote control and telemetry applications.
Like its predecessor STD-302S, the STD-302Z can be manufactured to various frequency bands / power levels while offering the same superior interference rejection and sensitivity through the use of SAW filter. Discrete design ensures long term availability and as before narrowband FM operation offers benefits such as stable operation at maximum data rate of 9600 bps. In addition, the STD-302Z receive performance has been improved to allow reliable communication in safety critical applications - even during tough RF conditions enabling category 1 (EN 300 220)*1 receiver status to be achieved. Maintaining identical housing and pin layout to STD-302S, shock and vibration resistance has also been improved for applications involving rough handling.
As a transceiver, bi-directional communication is possible. The STD-302Z internal PLL circuitry allows own channel table to be programmed by inputting serial data. Simple DI and DO pins for user data provide transparent interface and use of own protocol.
Technical features:

- 434 MHz / 10 mW
- Operating range 3.0 - 5.5 V
- Programmable RF channel
- PLL controlled VCO
- High receiver sensitivity
- Excellent vibration & shock resistance / Mechanical durability
- Receiver category 1
- Blocking: -20 dBm
- Adjacent channel selectivity: -50 dBm
- Adjacent channel saturation: -20 dBm
- Spurious response rejection: -44 dBm (1st,2nd mix)
- RED (EN 300 220)
- SAW filter to avoid interference from other radio systems.
- Other frequency versions will be available
(480 MHz (Taiwan), 458 MHz (UK), 447 MHz (Korea), 419 MHz (China), 429 MHz (Japan),
869 MHz (EU))

*1 Receiver category 1
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