Rf Frequency Synthesizer - CMOSTEK CMT2380F64 Manual

T
STB-TX
T
RFS-RX
Settling time
T
TFS-RX
T
TX-RX
T
RX-TX
Notes:
[1]. Both of TSLP-RX and TSLP-TX are depend on the crystal oscillator startup time, which is mainly related to the crystal itself.

1.7 RF Frequency Synthesizer

Parameter
Frequency range
Synthesizer frequency
resolution
Frequency tuning time
Phase noise@ 433 MHz
Phase noise@ 868 MHz
Phase noise@ 915 MHz
From Standby toTX
From RFS to RX
From TFS toTX
From TX to RX
（Ramp Down time needs 2 T
From RX to TX
Symbol
Different matching network is required
F
RF
F
RES
t
TUNE
10 kHz frequency deviation
100 kHz frequency deviation
500 kHz frequency deviation
PN
433
1 MHz frequency deviation
10 MHz frequency deviation
10 kHz frequency deviation
100 kHz frequency deviation
500 kHz frequency deviation
PN
868
1 MHz frequency deviation
10 MHz frequency deviation
10 kHz frequency deviation
100 kHz frequency deviation
500 kHz frequency deviation
PN
915
1 MHz frequency deviation
10 MHz frequency deviation
）
symbol
Condition
Rev 0.3 | 12 / 83
CMT2380F64
350
20
20
2 T
+350
symbol
350
Min. Typ. Max.
760 1020
380 510
190 340
127
170
25
150
-94
-99
- 118
- 127
- 134
-92
-95
- 114
- 121
- 130
-89
-92
- 111
- 121
- 130
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Unit
MHz
MHz
MHz
MHz
Hz
us
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz