DEMOBOARD-U3600BM Atmel, DEMOBOARD-U3600BM Datasheet - Page 13

• Manufacturer Part Number: DEMOBOARD-U3600BM
• Description: BOARD DEMO FOR U3600BM
• Manufacturer: Atmel
• Type: Cordless Phone ICr

Specifications of DEMOBOARD-U3600BM

• Contents: Board, Software and Documentation
• For Use With/related Products: U3600BM
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

5. Principle of RSSI Function, RSSI Diagrams
Figure 5-1.
4804A–CT0–03/06
Solution 1
Solution 2
Solution 3
RSSI Investigation to Measure Receive Level with a Microcontroller
Voltage dependent on the average of
ones and zeros. This voltage is measured
by an A/D converter and represents
receive level.
DACO-data representing
the receive level
Samples taken by micro-
controller during sample
period
DACO-data
representing the
receive level
Voltage dependent on the average of
ones and zeros. This voltage is measured
by an A/D converter and represents
receive level.
DACO
DACO
Sample period
Comparator
with fix level
converter
controller
Micro-
A/D
Analyzing method:
By changing the comparison register
value, the comparator switches at a
certain register value. This value is
then the corresponding field-strength.
The microcontroller then
calulates the average of
the number of ones and zeros
during a sample period and
this average value represents
the receive level.
controller
controller
Micro-
Micro-
U3600BM
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