EVB71120_15 Datasheet, PDF (5/18 Pages) Melexis Microelectronic Systems – 300 to 930MHz Receiver Evaluation Board Description

EVB71120
300 to 930MHz Receiver
Evaluation Board Description
1.4 Operating Modes
ENRX
0
1
Note: ENRX is pulled down internally.
Description
Shutdown mode
Receive mode
1.5 Frequency Range
Two different receive frequency ranges can be selected by the control signal RFSEL.
RFSEL
Description
0
Input frequency range 300 to 470MHz
1
Input frequency range 610 to 930MHz
1.6 LNA Selection
LNASEL
Description
0
LNA1 active, LNA2 shutdown
Hi-Z
LNA1 and LNA2 active
1
LNA1 shutdown, LNA2 active
Note: Hi-Z state means pin LNASEL is left floating (pin is internally pulled to V_CC/2 in this case).
1.7 External IF2 Selection
IFSEL
0
1
Description
IF2 = 455 kHz
IF2 = 10.7 MHz
1.8 Demodulation Selection
MODSEL
0
1
Description
ASK demodulation
FSK demodulation
1.9 Data Slicer
SLCSEL
0
1
Description
Averaging detection mode
Peak detection mode
39012 71120 01
Rev. 006
Page 5 of 18
EVB Description
Nov/15