MONOLITHIC CRYSTAL FILTERS
ECS’s Monolithic Crystal Filters have very
high Q’s and excellent temperature and
aging characteristics. These filters offer
narrow and intermediate bandwidths. The
monolithic crystal filter is smaller and more
cost effective than a discrete crystal
filter. With the addition of coupling
capacitors between two-pole sections, they
can be cascaded to produce four, six and
eight (or more) pole filter responses.
FEATURES
• High stability for wide temperature ranges
• Sharp cut-off
• RoHS Compliant (Pb Free)
ELECTRICAL CHARACTERISTICS (10.7 and 21.4 MHz)
For 12.5 KHz Channel Spacing (Operating Temperature -20 to +70˚C)
MODEL
ECS-10.7-7.5A
ECS-10.7-7.5B
ECS-10.7-7.5C
ECS-10.7-7.5D
ECS-21K7.5A
ECS-21K7.5B
ECS-21K7.5C
ECS-21K7.5D
ECS-21K7.5E
NOMINAL
FREQ. (f
O
)
(MHz)
10.7
10.7
10.7
10.7
21.4
21.4
21.4
21.4
21.4
NUMBER
OF
POLES
2
4
6
8
2
4
6
8
10
PASSBAND
3dB MIN.
(KHz)
±3.75
±3.75
±3.75
±3.75
±3.75
±3.75
±3.75
±3.75
±3.75
RIPPLE
MAX.
(dB)
0.5
1.0
2.0
2.0
0.5
1.0
2.0
2.0
2.0
INSERTION
LOSS MAX.
(dB)
1.5
2.5
3.5
4.0
2.0
2.5
3.0
4.0
4.5
STOPBAND
MAX.
(dB) (KHz)
20 ±18
40 ±14
45 ±8.75
65 ±8.75
18 ±12.5
35 ±12.5
45 ±8.75
65 ±9
75 ±8.75
65 ±12.5
90 ±12.5
STOPBAND
MAX.
(dB) (KHz)
GUARANTEED
ATTENUATION
(dB) (f
O
±KHz)
35 +300 ~ +1000
50 -200 ~ -1000
65 +300 ~ +1000
80 -200 ~ -1000
65 ±12.5 ~ ±300
90 ±12.5 ~ ±300
75 -910
90 ±910
65 ±12.5 ~ ±300
90 ±12.5 ~ ±300
90 ±12.5 ~ ±300
TERMINATING
IMPEDANCE
(Ohms/pF)
1800//5.0
1800//4.0
1800//3.5
1800//3.5
1500//6.0
850//5.0
850//5.0
850//5.0
850//5.0
CASE
HC-49/U
HC-49/U x 2
SC-3
SC-4
UM-1
UM-1 x 2
SC-1
SC-1
SC-2
65 ±12.5
90 ±12.5
90 ±10.5
For 20 KHz Channel Spacing (Operating Temperature -20 to +70˚C)
MODEL
ECS-10.7-12A
MF 10.7-12B
MF 10.7-12C
MF 10.7-12D
ECS-21K12A
ECS-21K12B
ECS-21K12C
ECS-21K12D
NOMINAL
FREQ. (f
O
)
(MHz)
10.7
10.7
10.7
10.7
21.4
21.4
21.4
21.4
NUMBER
OF
POLES
2
4
6
8
2
4
6
8
PASSBAND
3dB MIN.
(KHz)
±6.0
±6.0
±6.0
±6.0
±6.0
±6.0
±6.0
±6.0
RIPPLE
MAX.
(dB)
0.5
1.0
2.0
2.0
0.5
1.0
2.0
2.0
INSERTION
LOSS MAX.
(dB)
2.0
2.5
3.0
4.0
2.0
2.5
3.0
4.0
STOPBAND
MAX.
(dB) (KHz)
18 ±23
40 ±20
45 ±14
65 ±14
18 ±23
40 ±20
45 ±14
65 ±14
65 ±20
90 ±20
60 ±20
90 ±20
STOPBAND
MAX.
(dB) (KHz)
GUARANTEED
ATTENUATION
(dB) (f
O
±KHz)
35 +300
40 -200
65 +300
80 -200
65 ±20
90 ±20
35 +350
50 -200
65 +350
70 -200
65 ±20
90 ±20
~
~
~
~
~
~
~
~
~
~
~
~
+1000
-1000
+1000
-1000
±300
±300
+1000
-1000
+1000
-1000
±300
±300
TERMINATING
IMPEDANCE
(Ohms/pF)
2500//2.5
2500//1.5
2800//1.0
2800//1.0
1200//3.0
1200//2.5
1200//2.5
1200//2.5
CASE
HC-49/U
HC-49/U x 2
SC-3
SC-4
UM-1
UM-1 x 2
SC-1
SC-1
ECS, INC. INTERNATIONAL
1105 S. RIDGEVIEW, OLATHE, KS 66062 • 913-782-7787 • 800-237-1041 • FAX 913-782-6991 • WWW.ECSXTAL.COM
CRYSTAL FILTERS
74
CRYSTAL FILTERS
MONOLITHIC CRYSTAL FILTERS
ELECTRICAL CHARACTERISTICS (10.7 and 21.4 MHz)
For 25 KHz Channel Spacing (Operating Temperature -20 to +70˚C)
MODEL
ECS-10.7-15A
ECS-10.7-15B
ECS-10.7-15C
ECS-10.7-15D
ECS-10.7-15E
ECS-21K15A
ECS-21K15B
ECS-21K15C
ECS-21K15D
ECS-21K15E
NOMINAL
FREQ. (f
O
)
(MHz)
10.7
10.7
10.7
10.7
10.7
21.4
21.4
21.4
21.4
21.4
NUMBER
OF
POLES
2
4
6
8
10
2
4
6
8
10
PASSBAND
3dB MIN.
(KHz)
±7.5
±7.5
±7.5
±7.5
±7.5
±7.5
±7.5
±7.5
±7.5
±7.5
RIPPLE
MAX.
(dB)
0.5
1.0
2.0
2.0
2.0
0.5
1.0
2.0
2.0
2.0
INSERTION
LOSS MAX.
(dB)
2.0
2.5
3.0
4.0
4.5
1.5
2.0
2.5
3.0
4.0
STOPBAND
MAX.
(dB) (KHz)
18 ±25
40 ±25
45 ±17.5
70 ±17.5
75 ±15
18 ±25
40 ±25
45 ±17.5
65 ±17.5
75 ±17.5
65 ±25
90 ±25
90 ±20
65 ±25
90 ±25
90 ±20
STOPBAND
MAX.
(dB) (KHz)
GUARANTEED
ATTENUATION
(dB) (f
O
±KHz)
35 +300
40 -200
55 +300
80 -200
65 ±25
90 ±25
90 ±20
35 +350
50 -200
65 +350
80 -200
65 ±25
90 ±25
90 ±25
~
~
~
~
~
~
~
~
~
~
~
~
~
~
+1000
-1000
+1000
-1000
±300
±300
±300
+1000
-1000
+1000
-1000
±300
±300
±300
TERMINATING
IMPEDANCE
(Ohms/pF)
3000//2.0
3000//2.0
3000//1.5
3000//1.5
3000//1.5
1500//3.0
1500//2.0
1500//2.0
1500//2.0
1500//2.0
CASE
HC-49/U
HC-49/U x 2
SC-3
SC-4
SC-5
UM-1
UM-1 x 2
SC-1
SC-1
SC-2
For 50 KHz Channel Spacing (Operating Temperature -20 to +70˚C)
MODEL
ECS-10.7-30A
ECS-10.7-30B
ECS-10.7-30C
ECS-10.7-30D
ECS-21K30A
ECS-21K30B
ECS-21K30C
ECS-21K30D
NOMINAL
FREQ. (f
O
)
(MHz)
10.7
10.7
10.7
10.7
21.4
21.4
21.4
21.4
NUMBER
OF
POLES
2
4
6
8
2
4
6
8
PASSBAND
3dB MIN.
(KHz)
±15
±15
±15
±15
±15
±15
±15
±15
RIPPLE
MAX.
(dB)
0.5
1.0
2.0
2.0
0.5
1.0
2.0
2.0
INSERTION
LOSS MAX.
(dB)
1.5
2.5
3.0
3.5
1.5
2.0
2.5
3.5
STOPBAND
MAX.
(dB) (KHz)
15 ±50
30 ±40
60 ±45
70 ±40
15 ±45
40 ±50
45 ±35
70 ±35
65 ±50
90 ±50
STOPBAND
MAX.
(dB) (KHz)
GUARANTEED
ATTENUATION
(dB) (f
O
±KHz)
30 +300 ~ +1000
40 -300 ~ -1000
30 ±40 ~ ±300
60 ±45 ~ ±300
90 ±50 ~ ±300
35 +350 ~ +1000
45 -300 ~ -1000
65 +350 ~ +1000
80 -250 ~ -1000
65 ±50 ~ ±300
90 ±50 ~ ±1000
TERMINATING
IMPEDANCE
(Ohms/pF)
5000//0
5500//-1.0
5500//-1.0
5500//-1.0
1500//1.0
1800//0.5
2200//0.5
2200//0.5
CASE
HC-49/U
HC-49/U x2
SC-3
SC-4
UM-1
UM-1 x 2
SC-1
SC-1
90 ±50
45 MHz Monolithic Crystal Filters (Operating Temperature -20 to +70˚C)
MODEL
ECS-45K7.5A
ECS-45K7.5B
ECS-45K15A
ECS-45K15B
ECS-45K20A
ECS-45K20B
ECS-45K30A
ECS-45K30B
NOMINAL
FREQ. (f
O
)
(MHz)
45.0
45.0
45.0
45.0
45.0
45.0
45.0
45.0
NUMBER
OF
POLES
2
4
2
4
2
4
2
4
PASSBAND
3dB MIN.
(KHz)
±3.75
±3.75
±7.5
±7.5
±10
±10
±15
±15
RIPPLE
MAX.
(dB)
1.0
1.0
1.0
1.0
0.5
1.0
1.0
1.0
INSERTION
LOSS MAX.
(dB)
2.0
4.0
2.0
3.0
2.0
3.0
2.0
3.0
STOPBAND
MAX.
(dB) (KHz)
10 ±12.5
30 ±12.5
15 ±25
30 ±25
15 ±30
35 ±40
15 ±50
35 ±50
STOPBAND
MAX.
(dB) (KHz)
GUARANTEED
ATTENUATION
(dB) (f
O
±KHz)
65
90
75
90
65
90
70
90
-910
±910
-910
±910
-910
±910
-910
±910
TERMINATING
IMPEDANCE
(Ohms/pF)
350//10.5
350//6.5
650//5.0
650//3.0
910//2.5
910//2.5
1200//1.5
1200//0.7
CASE
UM-1
UM-1 x 2
UM-1
UM-1 x 2
UM-1
UM-1 x 2
UM-1
UM-1 x 2
ECS, INC. INTERNATIONAL
1105 S. RIDGEVIEW, OLATHE, KS 66062 • 913-782-7787 • 800-237-1041 • FAX 913-782-6991 • WWW.ECSXTAL.COM
CRYSTAL FILTERS
75
CRYSTAL FILTERS
MONOLITHIC CRYSTAL Filters
55 MHz Monolithic Crystal Filters (Operating Temperature -20 to +70˚C)
MODEL
ECS-55K15A
ECS-55K15B
ECS-55K20A
ECS-55K20B
ECS-55K30A
ECS-55K30B
ECS-55K32A
ECS-55K32B
NOMINAL
FREQ. (f
O
)
(MHz)
55.0
55.0
55.0
55.0
55.0
55.0
55.0
55.0
NUMBER
OF
POLES
2
4
2
4
2
4
2
4
PASSBAND
3dB MIN.
(KHz)
±7.5
±7.5
±10
±10
±15
±15
±16
±16
RIPPLE
MAX.
(dB)
1.0
1.0
1.0
1.0
1.0
1.0
0.5
1.0
INSERTION
LOSS MAX.
(dB)
2.0
3.0
2.0
3.0
2.0
3.0
2.5
5.0
STOPBAND
MAX.
(dB) (KHz)
15 ±25
30 ±25
15 ±30
25 ±25
15 ±50
30 ±50
4 ±29.5
30 ±52
STOPBAND
MAX.
(dB) (KHz)
GUARANTEED
ATTENUATION
(dB) (f
O
±KHz)
70
90
75
90
70
90
65
80
-910
±910
-910
±910
-910
±910
-910
±910
TERMINATING
IMPEDANCE
(Ohms/pF)
600//3.0
600//1.5
910//2.5
910//1.0
1200//1.5
1200//0.7
1250//1.3
1250//0.5
CASE
UM-1
UM-1 x 2
UM-1
UM-1 x 2
UM-1
UM-1 x 2
UM-1
UM-1 x 2
70 MHz & 90 MHz Monolithic Crystal Filters (Operating Temperature -20 to +70˚C)
MODEL
ECS-70K15A
ECS-70K15B
ECS-70K20A
ECS-70K20B
ECS-90M20A
ECS-90M20B
NOMINAL
FREQ. (f
O
)
(MHz)
70.0
70.0
70.0
70.0
90.0
90.0
NUMBER
OF
POLES
2
4
2
4
2
4
PASSBAND
3dB MIN.
(KHz)
±7.5
±7.5
±10
±10
±10
±10
RIPPLE
MAX.
(dB)
1.0
1.0
1.0
1.0
1.0
1.0
INSERTION
LOSS MAX.
(dB)
2.5
4.0
2.5
4.0
2.5
4.0
STOPBAND
MAX.
(dB) (KHz)
15
40
15
35
15
30
±25
±35
±28
±40
±30
±30
STOPBAND
MAX.
(dB) (KHz)
GUARANTEED
ATTENUATION
(dB) (f
O
±KHz)
35
70
35
70
35
70
-910
±910
-910
±910
-910
±910
TERMINATING
IMPEDANCE
(Ohms/pF)
2000//-1.0
2000//-1.0
2500//-1.0
2500//-1.0
2500//-1.0
2500//-1.0
CASE
UM-1
UM-1 x 2
UM-1
UM-1 x 2
UM-1
UM-1 x 2
DIMENSIONS AND ELECTRICAL DIAGRAMS (mm)
Attenuation
(dB)
2.5 Max.
11.1 Max.
7.3 Max.
8.0 Max.
11.2
Stopband width
Stopband width
(µ sec)
Attenuation
Attenuation
curve
Spurious response
Group
delay curve
20±1
Group delay
distortion
4.88
±
0.2
ø 0.43
4.7
3.75
±0.2
15 Min.
Attenuation
guaranteed
t
Passband
width
Ripple
Specified
attenuation
Group delay
time
Figure 1) HC-49/U
GND
ø 0.35
L
8.0
3.2
Loss
fo
Nominal
frequency
Frequency
Figure 2) UM-1
H
Figure 3) MCF Characteristics Curve
7 Min.
Dø
1.5
A
CASE
SC-1
SC-2
SC-3
SC-4
SC-5
L
11
13.4
15
DIMENSIONS (mm)
W
H
A
B
D
8.5
8.5
11.5
11.5
7.4
9.8
9.0
13.4
17.8
2.0
2.0
2.5
2.5
2.5
0.30
0.30
0.43
0.43
0.43
SG
Zt
MCF
Zt
Zt
MCF
Dot mark
Zt
MCF
4
GND
0.3
OUT
B
12.0 15.0
C
C
LM
SG
C
C
C
LM
W
B
18.5 12.0 15.0
23.0 12.0 15.0
IN
A
GND
2-POLE MCF
Zt: Terminating Impedance
4-POLE MCF
Zt: Terminating Impedance
Figure 4) SC Pkg with Dimensional Chart
Figure 5) MCF Test Circuits
ECS, INC. INTERNATIONAL
1105 S. RIDGEVIEW, OLATHE, KS 66062 • 913-782-7787 • 800-237-1041 • FAX 913-782-6991 • WWW.ECSXTAL.COM
CRYSTAL FILTERS
76
CRYSTAL FILTERS
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