User Manual
Table Of Contents
- Content
- CHAPTER 1 M210-2G description
- Chapter 2 M210-2G connection
- Chapter 3 Command interface reference manual
- Chapter 4 User's Guide
- appendix A How to load a key in A coupler
- appendix B ERROR CODE
M210-2G - DATASHEET - M210-2G
DS - 12
Version 1.1
Power supply
CHARACTERISTICS
To power up the coupler, just set Vdd PIN to 5V, and connect the ground.
PIN description Min. Typical Max. Unit
VDD DC voltage 4.75 5 5.25 V
Ripple<30MHz 50 mVss
Supply current 50 mA
Electrical characteristics
NOISE INFLUENCE
If coupler is integrated in a noisy environment, a PI filter on the power supply line is needed
to lower the noise level. It has to be as close as possible to the coupler.
If a RS232 driver is used, it may induce noise on the power supply line, and a PI filter
should be added. More over, noise induced by this kind of device is around 400kHz, which
is the frequency used by the 15 693 protocol. To avoid any problem on our coupler (noise
emission), or on any other device connected to the power supply line, a PI filter should be
added also on the power supply line of the RS 232 driver, as close as possible to this
component.
Driver RS232
Coupler
Serial
line
Rx Tx
Vcc
Vcc
10µF
10µH
10µF
10µF
10µF
10µH
Filter component values are choosen so that frequencies under 1MHz are eliminated. This
will avoid RF noise on the coupler receiver.