User's Manual
Table Of Contents
- 1 GENERAL DESCRIPTION
- 2 FUNCTIONAL DESCRIPTION
- 2.1 Simplified firmware flow chart and block diagram
- 2.2 Pin out
- 2.3 Pin description and operational characteristics
- 2.4 Absolute maximum ratings (non operating)
- 2.5 Maximum ratings (operating)
- 2.6 Power management and voltage regulators
- 2.7 Configuration
- 2.8 Radio telegram
- 2.9 Transmit timing
- 2.10 Charging circuitry
- 2.11 Energy consumption
- 3 APPLICATIONS INFORMATION
- 4 AGENCY CERTIFICATIONS
USER MANUA
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V0.6
© 2010 EnOcean | www.enocean.com STM 320 / STM 320C / STM 321C User Manual V0.6 | Page 10
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STM 320 / STM 320C / STM 321C
3 APPLICATIONS INFORMATION
3.1 Helical antenna
868 MHz
315 MHz
Antenna recommendation:
STM 320 without host PCB STM 320 with host PCB
Glass, wood, concrete, metal
868MHz: > 2mm
315MHz: > 4mm
868MHz: > 5mm
315MHz: > 10mm
Plastic
Host PCB
GND plane