The Renesas/Semtech/AMiHo co-developed AM070 is an 868 MHz embedded modem with a built-in microcontroller based on a Renesas MCU family and the Semtech SX1231 RF modem. It transmits 20 mW output and supports a very low current standby for battery powered applications.
The modem is designed primarily for use in Wireless Meter-Bus applications and is supplied with an EN13757-compliant Wireless M-Bus software stack. It is also suitable for use in other 868 MHz ISM-band, home automation applications including LED lighting, gateways and concentrators, door and shutter control, heating and ventilation. It can be used as a standalone modem or embedded in a developer’s application.
To aid hardware design, a full reference design is provided including schematics, bill of materials and PCB Gerber files, free for incorporation into customers’ designs. Software support includes drivers and EN13757-4:2005 Wireless M-Bus RF stack level drivers, plus utilities and sample application code.
The AM070 features 64 KB Flash memory as well as 2 KB of non-volatile and 3 KB of RAM data memory. It operates from a supply of 2,2 to 3,75 V over the temperature range from -40°C to +85°C. Maximum output power is +13 dBm and receiver sensitivity figures are -114 dBm at 4,8 Kbps, -105 dBm at 32,768 Kbps and -101 dBm at 100 Kbps. The modem measures 20 x 50 x 10 mm and offers 2,54 mm pin headers for solder/socket mount. Connections are provided for additional GPIO, as is a Hirose UF.L antenna socket.
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