TCM320C ENOCEAN, TCM320C Datasheet - Page 30

• Manufacturer Part Number: TCM320C
• Description: MODULE SOC RF TXRX W/8051 MCU
• Manufacturer: ENOCEAN
• Series: -r

Specifications of TCM320C

• Frequency: 315MHz
• Data Rate - Maximum: 125kbps
• Modulation Or Protocol: ASK
• Applications: General Purpose
• Power - Output: 5dBm
• Sensitivity: -98dBm
• Voltage - Supply: 2.6 V ~ 3.3 V
• Current - Receiving: 33mA
• Current - Transmitting: 24mA
• Data Interface: PCB, Through Hole
• Memory Size: 32kB Flash, 2kB RAM
• Antenna Connector: On-Board, Wire Whip
• Operating Temperature: -25°C ~ 85°C
• Package / Case: Module
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 1084-1000; S3033-K320

USER MANUAL
TCM 300 / 300C / 320 / 320C
3.5
In order to provide a good radio performance, great attention must be paid to the power
supply and a correct layout and shielding. It is recommended to place a 22 µF ceramic ca-
pacitor between VDD and GND close to the module (material: X5R, X7R, min 6.3 V to avoid
derating effects). In addition a 470 nH coil shall be inserted (Murata LQW18A, 0603) in the
power supply line.
For best performance it is recommended to keep the ripple on the power supply rail below
10 mVpp (see 2.4).
3.6
© 2010 EnOcean | www.enocean.com
All GND pins must be connected to GND. Be careful not to create loops! The
ground must be realized ideally on both sides of the PCB board with many vias. At
least there must be a short star connection. Otherwise RF performance can be
reduced!
The length of lines connected to I/Os should not exceed 5 cm.
It is recommended to have a complete GND layer, at least below the module and
directly connected components. GND must however be avoided 0…0.3mm below
the PCB in the area marked by the circle in the figures below.
The RVDD line should be kept as short as possible. Please consider recommenda-
tions in section 3.10.
Power supply requirements
Layout recommendations
V1.25
TCM 300 / 300C / 320 / 320C User Manual V1.25 | Page 30/52