CRYSTAL
FILTERS
LINEAR PHASE FILTERS
Linear phase crystal filters are designed for Bessel or
Gaussian pulse signal transmission with consideration to
the linearity of phase characteristics.
I
Features
8
8
8
8
Maximum flat group delay
Low insertion loss
Compactness and light weight
Stable temperature characteristics
I
Attention on use
8
Cannot be washed except for D types.
I
Linear Phase Filters
Model
YF10.7-4
YF10.7-6
YF10.7-8
YF10.7-12
YF10.7-16
YF10.7-20
YF10.7-48
21M15BP
21M20BP
Nominal
Frequency
(MHz)
10.7
10.7
10.7
10.7
10.7
10.7
10.7
21.4
21.4
Pole
6
6
6
6
5
5
7
4
4
Group Delay Ripple Insertion Terminating Operating
Variation
Impedance Temp. Range Type
Loss
(Ω// pF)
(˚C)
(µs) (dB) (dB)
(dB) (kHz) (dB) (kHz) (dB) (kHz) (kHz)
Pass Bandwidth
Attenuation band width
3
3
3
3
3
3
3
3
3
±3.6
±5.4
±7.2
±10.8
±14.4
±18
±86.4
±7.5
±10
60
60
60
60
40
40
60
30
35
±20
±30
±40
±65
+110
–80
+130
–100
—
—
—
—
—
—
—
50
—
—
—
—
—
—
—
—
±60
—
±4
±6
±8
±12
±16
±20
±48
±7.5
±10
10
10
6
5
5
4
3
8
5
1
1
1
1
1
1
2
1
1
4
4
4
4
6
6
6
2
2
50//0
50//0
50//0
50//0
50//0
50//0
50//0
IN
3.9k//–3
OUT
5.5k//–3
–10~+50
–10~+50
–10~+50
–10~+50
–10~+50
–10~+50
–10~+50
–20~+70
–20~+70
D-109
D-109
D-109
D-109
D-109
D-109
D-109
D-161-D
D-161-D
±360
±32
±65
Model : YF10.7-8
70
ATT(dB)
80
Model : YF10.7-8
-10°C
25°C
50°C
60
50
60
30
20
10
G.DELAY(µs)
20
30
40 (kHz)
40
40
20
-40
-30
-20
-10
0
10
10.7MHz
0
–16
–8
0
10.7MHz
8
16 (kHz)
D-109
_
55
+1
(mm)
D-161-D
–
11
+ 1
(mm)
_
22
+1
–
4
+ 0.5
6
_ 1
2
_
7
+1
1.5
– 0.2
–
11.5
+ 0.5
–
7.4
+ 0.5
+
+
2 – ø0.8
2-M2.6
_
48
+0.5
4 – ø0.3
GND
_
7.5
+0.5
_
22
+1
GND
–
8.5
+ 0.5
196
2 2
–
7
+1
Analog electronics
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