SX1210 SEMTECH [Semtech Corporation], SX1210 Datasheet - Page 53

• Manufacturer Part Number: SX1210
• Description: Ultra-Low Power Integrated UHF Receiver
• Manufacturer: SEMTECH [Semtech Corporation]

The detailed description of the RXParam register is given in Table 24.
Table 24: RXParam Register Description
Name
PassiveFilt
ButterFilt
PolypFilt_center
Res
PolypFilt_on
Bitsync_off
Sync_on
Sync_size
Sync_tol
Res
Rev 2– Sept 8
ADVANCED COMMUNICATIONS & SENSING
6.4. Receiver Configuration parameters - RXParam
th
, 2008
Bits
7-4
3-0
7-4
3-0
7
6
5
4-3
2-1
0
Address (d)
16
16
17
17
18
18
18
18
18
18
RW
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Description
Typical single sideband bandwidth of the passive low-pass filter.
PassiveFilt = 0000
Sets the receiver bandwidth. For BW information please refer to
sections 3.3.5 (FSK) and 3.3.6 (OOK).
(d): “0011” => f
Central frequency of the polyphase filter (100kHz recommended):
(d):“0011” => f
Reserved
(d): “1000”
Enable of the polyphase filter, in OOK Rx mode:
0
1
Bit synchronizer: control in Continuous Rx mode:
0
1
Sync word recognition:
0
1
Sync word size:
00
01
10
11
Number of errors tolerated in the Sync word recognition:
00
01
10
11
Reserved
(d):”0”
f
f
0
c
=
=
off (d)
on
on (d)
off
off (d)
on
200
8 bits
16 bits
24 bits
32 bits (d)
0 error (d)
1 error
2 errors
3 errors
Page 53 of 73
f
0
kHz
+
200
.
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
0
12
C
F
= 100 kHz
kHz
xtal
= 200 kHz
8 .
MHz
MHz
.
12
65 kHz
82 kHz
109 kHz
137 kHz
157 kHz
184 kHz
211 kHz
234 kHz
262 kHz
321 kHz
378 kHz (d)
414 kHz
458 kHz
514 kHz
676 kHz
987 kHz
f
xtal
8 .
.
1
MHz
MHz
+
Val
(
.
PolypFilt
1
+
Val
8
(
ButterFilt
_
8
center
)
)
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SX1210