
Preliminary Specification
TUA6100B6
High-Frequency-Products
9
26.1.01
8.11.2 GHz PLL programming
Note: the maximum operating frequency of the synthesizer VCO is 2.9 GHz
for the low side VCO mode and VCO at Fin application is not yet available.
8.11.3 Synthesizer VCO band switching
Programming tables of the synthesizer VCO band switching controlled by the GHz-PLL
The GHz VCO must be switched in any case at RFin =1525 MHz if a tuning range including frequencies below
and above 1525 MHz is used.
programmable tuning ranges of the synthesizer VCO controlled by GHz PLL for Fin= 950 - 2150 MHz
0.5
0.66
0.75
1
1
1
F
Input
1.33
4
3
1.5
3
2
2
4
2
GHz-PLL
R-Counter
N-Counter
Possibilities of 2 band splitting without VCO at input frequency
712
1076
1076
1424
2152
1434
Possibilities of 3 band splitting without VCO at input frequency
700
1075
934
934
1:1.51 tuning range
Fvco
min
Fvco
max
Fin
min
Fin
max
<- + ->
712
1900
2870
1425
2152
<- + ->
1900
2870
950
1435
MHz
<- + ->
949
<- + ->
MHz
band switching
at 1430 MHz
1:1.53 tuning range
Fvco
min
Fvco
max
830
712
2173
2867
2182
2445
1900
2910
MHz
Fin
min
Fin
max
1400
2150
1245
1400
949
1245
1630
2150
1455
1630
950
1455
MHz
band switching
at 1455, 1630
1245, 1400 MHz
low side VCO
VCO at Fin
high side VCO
Register 01
Subaddress 01H
D23GHz VCO
Switch
Register 01
Subaddress 01H
N1
2
D21
D20
0
0
0
1
1
0
1
1
recommended switching for band splitting
(high side VCO), Fvco = 1900 - 2870 MHz
1
0
: 2
Register 02
Subaddress 02H
R1
2
D13
D12
0
0
0
1
1
0
1
1
N0
2
N-Counter
GHz-PLL
: 3
: 4
: 2
: 3
R0
2
R-Counter
GHz-PLL
: 3
: 4
: 2
: 3
0
3.4-6.2 GHz
1
6-8.6 GHz
recommended
switching at 1525 MHz
RFin below 1525 MHz
RFin
2 band
< 1430 MHz < 1455 MHz
RFin
3 band
0
1
: 4
0
3.4-6.2 GHz
1
0
: 2
0
0
: 3
not used
1455-1620
MHz
RFin above 1525 MHz
1
6-8.6 GHz
0
0
: 3
0
1
: 4
> 1430 MHz > 1620 MHz
(low side VCO), Fvco = 712 - 1076 MHz
1
: 4
0
0
0
: 3
< 1430 MHz < 1245 MHz
0
0
: 3
1
0
: 2
not used
1245-1400
MHz
0
1
: 4
1
0
: 2
> 1430 MHz > 1400 MHz
-----------------
2
4
2
3
3
4
2
2
3
3
4
4
R
2
N
2
------
F
vco
2
N
2
-------
F
in
=
F
vco
2
N
2
-------
F
in
=