ALPHA RF T
RANSCEIVER
d1..d0: select VDI response time
d1
0
0
1
1
d0
0
1
0
1
Response
Fast
Medium
Slow
Always on
ALPHA-TRX433S
ALPHA-TRX915S
g1..g0: select LNA gain
g1
0
0
1
1
g0
0
1
0
1
LNA gain (dBm)
0
-6
-14
-20
r2..r0: select DRSSI threshold
r2
0
0
0
0
1
1
1
1
r1
0
0
1
1
0
0
1
0
r0
0
1
0
1
0
1
0
1
RSSIsetth [dBm]
-103
-97
-91
-85
-79
-73
Reserved
Reserved
The actual DRSSI threshold is related to LNA setup:
SSI
th
= RSSI
setth
+ G
LNA.
Data Filter Command
bit
15
1
14
1
13
0
12
0
11
0
10
0
9
1
8
0
7
al
6
ml
5
1
4
s
3
2
f2
1
f1
0
f0
POR
C22Ch
1
al: Enable clock recovery auto-lock
ml: Enable clock recovery fast mode
s: select data filter type
s
Filter type
Digital filter
0
Analog RC filter
1
f1..f0: Set DQD threshold
DSALPHA-TRX-6
Feb ‘11
©2009
RF Solutions Ltd.
Page 8