3.2
3.2.1
RF diodes
Varicap diodes
Varicap selection guide on www.nxp.com/varicaps
Easy-to-use parametric filters help you choose
the right varicap for your design.
Why choose NXP’s varicap diodes:
`
Reference designs for TV and radio tuning
`
Direct matching process
`
Small tolerances
`
Short lead time
`
Complete portfolio covering broad range of frequencies and packages (including leadless)
`
Reliable volume supply
VCO and FM radio tuning varicap diodes
@ f = 1 MHz
Type
Package
Number
of
diodes
1
1
1
1
2
1
2
1
1
Config-
uration
SG
SG
SG
SG
CC
SG
CC
SG
SG
C
d
min
(pF)
6.4
14.4
25
36.5
89
28.2
76
19.9
19.9
C
d
typ
(pF)
-
16
-
-
95
-
81
-
-
C
d
max
(pF)
7.2
17.6
28.5
42.5
102
33.5
86
23.2
23.2
@ V
R
=
(V)
1
1
1
0.5
1
0.2
1
1
1
C
d
min
(pF)
2.55
4.2
4.8
11.8
25.5
7.2
25.5
4.5
4.5
C
d
typ
(pF)
-
4.8
-
-
27.6
-
27.6
-
-
C
d
max
(pF)
2.95
5.4
6.8
13.8
29.7
11.2
29.7
5.4
5.4
@ V
R
=
(V)
4
7.5
4
2
7.5
2.3
7.5
7.5
7.5
C
d1
/
C
d2
min
2.2
2.7
-
2.8
3.1
2.5
2.6
3.7
3.7
CC:
SG:
C
d1
/
C
d2
max
-
3.9
-
-
3.8
-
3.3
5.2
5.2
@ V1
=
(V)
1
1
-
0.5
1
0.2
1
1
1
@ V2
=
(V)
4
7.5
-
2
7.5
2.3
7.5
7.5
7.5
r
s
typ
(Ω)
-
0.4
-
0.25
0.25
0.35
0.2
0.35
0.35
r
s
max
(Ω)
0.6
0.7
0.8
-
0.5
0.6
0.4
0.5
0.5
@f=
(MHz)
470
470
100
100
100
100
100
100
100
^ Includes special design for FM car radio (CREST-IC:TEF6860)
^^ Includes special design for mobile phone tuner ICs
Type of connection:
common cathode
single
TV / VCR / DVD / HDD varicap diodes - UHF tuning
@ f = 1 MHz
Type
Package
C
d
min
(pF)
Matched
Unmatched
1.9
1.951
1.951
1.9
1.9
1.95
1.87
1.89
1.7
C
d
typ
(pF)
2.1
2.1
2.1
2.1
-
2.1
2
2.04
-
C
d
max
(pF)
2.25
2.225
2.225
2.25
2.25
2.22
2.13
2.18
2.1
@ V
R
=
(V)
28
28
28
28
28
28
10
25
28
C
d1
/C
d2
min
C
d1
/C
d2
typ
C
d1
/C
d2
max
@ V
1
=
(V)
1
1
1
1
1
1
1
2
0.5
@ V
2
=
(V)
28
28
28
28
28
28
10
25
28
r
s
typ
(Ω)
-
0.6
0.6
0.6
0.65
0.65
0.65
0.65
-
r
s
max
(Ω)
0.75
0.75
0.75
0.75
-
-
-
0.7
0.75
@f=
(MHz)
470
470
470
470
470
470
470
470
470
@
C
d
=
(pF)
9
9
9
9
9
30
9
9
9
2
2
2
2
2
2
2
1.8
-
∆C
d
/
C
d
@ V
1
=
(V)
0.5
1
1
1
1
1
1
2
-
@ V
2
=
(V)
28
28
28
28
28
28
10
25
-
10
10
10
10
10
5
5
10
-
@
N
s
=
8.2
8.45
8.45
8.45
-
8.45
6
6.3
8.9
9
9
9
9
9
9
7
7.3
-
10
10.9
10.9
10
-
10.9
-
-
12
Bold
= highly recommended product
78
NXP Semiconductors RF Manual 16
th
edition
PHILIPS [ NXP SEMICONDUCTORS ]
