EVB7122 Melexis Company, EVB7122 Datasheet - Page 12

• Manufacturer Part Number: EVB7122
• Description: Evaluation Board For Th7122 And Th71221
• Manufacturer: Melexis Company

3.1.5
39012 07122 02
Rev. 006
MODCTRL
ERTM
LDTM
Name
NT
D – word
[18:17]
[20:19]
[16:0]
Bits
[21]
64d .. 131071d
00
01
10
11
00
01
10
11
0
1
external modulation control
Modulation will be set via pin ASK/FSK.
internal modulation control
Modulation will be set via bit MODSEL (bit 19 in A-word). Nevertheless pin ASK/FSK must be
connected to either VCC or VEE.
256 clocks
16 clocks
16 clocks
64 clocks
2 clocks
4 clocks
8 clocks
4 clocks
Page 12 of 24
Feedback divider ratio in TX operation mode
#default
#default
Set the unlock condition of the PLL
Set the lock condition of the PLL
Set mode of modulation control:
Set the maximum allowed number of reference clocks
(1/f
can be in-consecutive.
Set the minimum number of consecutive edges of phase
detector output cycles, without appearance of any unlock
condition.
RO
Description
) during the phase detector output signals (UP & DOWN)
Evaluation Board Description
27 to 930MHz Transceiver
EVB7122
EVB Description
#default
June/08