Rf Frequency Synthesizer; Settling Time - CMOSTEK CMT2310A Manual

1.6 RF Frequency Synthesizer

Parameter
Frequency range
Frequency deviation
range
Frequency resolution
Frequency tuning time
Phase noise
@ 433 MHz
Phase noise
@ 868 MHz
Notes:
[1]. For 2 FSK and 4 FSK, F
right) and the centered frequency point.

1.7 Settling Time

Parameter
Settling time
Table 6. RF Frequency Synthesizer
Symbol
F Require different matching networks.
RF
675 ~ 960 MHz
450 ~ 640 MHz
338 ~ 450 MHz
F
DEV_RNG
225 ~ 320 MHz
[1]
169 ~ 225 MHz
135 ~ 169 MHz
113 ~ 135 MHz
F
RES
t
TUNE
10 kHz Frequency Offset
100 kHz Frequency Offset
PN
433
1 MHz Frequency Offset
10 MHz Frequency Offset
10 kHz Frequency Offset
100 kHz Frequency Offset
PN
868
1 MHz Frequency Offset
10 MHz Frequency Offset
represents the frequency difference between the frequency points at the far ends (left and
DEV
Table 7. Settling Time
Symbol
T From Sleep to RX
SLP-RX
T From Sleep to TX
SLP-TX
T From Standby to RX
STB-RX
T From Standby to TX
STB-TX
T From RFS to RX
RFS-RX
T From TFS to TX
TFS-RX
From TX to RX
T
TX-RX
(Ramp down requires 2T
Condition
Condition
time)
symbol
Rev 1.0E | Page9/50
CMT2310A
Min. Typ. Max.
675 960
338 640
113 320
600
400
300
200
150
120
100
60
60
-101
-114
-129
-134
-100
-109
-126
-129
Min. Typ. Max.
660
660
160
160
16
16
2T
symbol
+168
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