EVB7122 Datasheet, PDF (8/24 Pages) Melexis Microelectronic Systems – 27 to 930MHz Transceiver Evaluation Board Description

EVB7122
27 to 930MHz Transceiver
Evaluation Board Description
3.1 Register Overview
WORD
DATA
MSB
LSB
23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Bit No.
0 0 0 0 0 0 0 1 1 1 1 1 0 0 Depends on FS0/FS1 voltage level after power up default
A
23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Bit No.
0 1 0 1 1 1 0 0 1 1 1 0 1 0 Depends on FS0/FS1 voltage level after power up default
B
23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Bit No.
1000
Depends on FS0/FS1 voltage level after power up
default
C
23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Bit No.
1100100
Depends on FS0/FS1 voltage level after power up
default
D
3.1.1 Default Register Settings for FS0, FS1
FS1
0
0
1
1
Note:
FS0
Channel
frequency
0
868.30 MHz
1
433.92 MHz
0
915.00 MHz
1
315.00 MHz
d – decimal code
BAND
1
0
1
0
VCOCUR
[1:0]
11
01
11
00
RR
[9:0]
16d
32d
32d
18d
NR
[ 16 :0 ]
1919d
1894d
4047d
766d
RT
[ 9 :0 ]
16d
32d
32d
18d
NT
[ 16 : 0 ]
1943d
1942d
4095d
793d
A detailed description of the registers function and their configuration can be found in the following sections.
39012 07122 02
Rev. 005
Page 8 of 24
EVB Description
June/07