ISM-Band FSK Transceiver
The ISM frequency band FSK/OOK transceiver is an OEM telemetry system for the
transmission of digital (biphase) data signals.
The system is providing half duplex transmission with a data rate up to 40 KBit/s.
The transmission power can be adapted to the received signal strength to ensure
a high data throughput for all systems sharing the transmission band and minimizes
the radiated power.
As a standard, the transceiver is equipped with two antenna connectors and a diversity
switch to avoid interferences from radio wave reflections and fading. A received signal
strength indicator (RSSI) signal and the lock-in state of the PLL can be monitored via
the board connector.
The system can be fitted to work in four different ISM frequency bands:
315 MHz (USA, Japan), 433 MHz, 868 MHz and 915 MHz (USA).
In addition, a version of the transceiver with an on-board antenna without diversity is
Overview of the technical specifications:
|Available frequency bands (ISM)
||315 MHz, 433 MHz, 868 MHz, 915 MHz
|Maximum output power
Data rate (digital)
|110 Bit/s - 40 KBit/s
||20 KHz with FM
||serial, LV-CMOS level
|Supply current transmit mode
|Supply current reception mode
|Supply current standby mode
|Dimensions with antenna connectors
||42 x 35 mm
|Dimensions with internal antenna
||51 x 35 mm
To download the complete datasheet (as PDF), click here.