MONOLITHIC CRYSTAL Filters
55 MHz Monolithic Crystal Filters (Operating Temperature -20 to +70˚C)
RIPPLE
MAX.
(dB)
NOMINAL
FREQ. (f
(MHz)
NUMBER
OF
POLES
PASSBAND
3dB MIN.
(KHz)
INSERTION
LOSS MAX.
(dB)
STOPBAND
MAX.
(dB) (KHz)
STOPBAND
MAX.
(dB) (KHz)
GUARANTEED
ATTENUATION
TERMINATING
IMPEDANCE
(Ohms/pF)
MODEL
O
)
CASE
(dB) (f
O
KHz)
ECS-55K15A
ECS-55K15B
ECS-55K20A
ECS-55K20B
ECS-55K30A
ECS-55K30B
ECS-55K32A
ECS-55K32B
55.0
55.0
55.0
55.0
55.0
55.0
55.0
55.0
2
4
2
4
2
4
2
4
7.5
7.5
10
10
15
15
16
16
1.0
1.0
1.0
1.0
1.0
1.0
0.5
1.0
2.0
3.0
2.0
3.0
2.0
3.0
2.5
5.0
15 25
30 25
15 30
25 25
15 50
30 50
70
90
75
90
70
90
65
ꢀ0
-910
600//3.0
600//1.5
910//2.5
910//1.0
1200//1.5
1200//0.7
1250//1.3
1250//0.5
UM-1
UM-1 x 2
UM-1
UM-1 x 2
UM-1
UM-1 x 2
UM-1
UM-1 x 2
910
-910
910
-910
910
4
29.5
-910
910
30 52
70 MHz & 90 MHz Monolithic Crystal Filters (Operating Temperature -20 to +70˚C)
RIPPLE
MAX.
(dB)
NOMINAL
FREQ. (f
(MHz)
NUMBER
OF
POLES
PASSBAND
3dB MIN.
(KHz)
INSERTION
LOSS MAX.
(dB)
STOPBAND
MAX.
(dB) (KHz)
STOPBAND
MAX.
(dB) (KHz)
GUARANTEED
ATTENUATION
TERMINATING
IMPEDANCE
(Ohms/pF)
MODEL
O
)
CASE
(dB) (f
O
KHz)
ECS-70K15A
ECS-70K15B
ECS-70K20A
ECS-70K20B
ECS-90M20A
ECS-90M20B
70.0
70.0
70.0
70.0
90.0
90.0
2
4
2
4
2
4
7.5
7.5
10
10
10
10
1.0
1.0
1.0
1.0
1.0
1.0
2.5
4.0
2.5
4.0
2.5
4.0
15 25
40 35
15 2ꢀ
35 40
15 30
30 30
35
70
35
70
35
70
-910
2000//-1.0
2000//-1.0
2500//-1.0
2500//-1.0
2500//-1.0
2500//-1.0
UM-1
UM-1 x 2
UM-1
UM-1 x 2
UM-1
910
-910
910
-910
910
UM-1 x 2
DIMENSIONS AND ELECTRICAL DIAGRAMS (mm)
Attenuation
(dB)
2.5 Max.
11.1 Max.
7.3 Max.
Stopband width
Stopband width
(µ sec)
Attenuation
curve
Attenuation
Spurious response
Group
delay curve
Group delay
distortion
4.88 ± 0.2
t
3.75 ±0.2
Attenuation
guaranteed
Passband
width
Specified
attenuation
ø 0.43
4.7
Ripple
Group delay
time
Figure 1) HC-49/U
GND
ø 0.35
Frequency
fo
Loss
Nominal
frequency
8.0
L
Figure 3) MCF Characteristics Curve
Figure 2) UM-1
Dot mark
Zt
Zt
Zt
Zt
DIMENSIONS (mm)
1.5
A
CASE
Dø
L
W
H
A
B
D
MCF
MCF
MCF
SC-1
SC-2
SC-3
SC-4
SC-5
11 ꢀ.5 11.5 7.4
13.4 ꢀ.5 11.5 9.ꢀ
15 12.0 15.0 9.0
2.0 0.30
2.0 0.30
2.5 0.43
OUT
GND
IN
LM
SG
SG
LM
C
C
C
C
C
1ꢀ.5 12.0 15.0 13.4 2.5 0.43
23.0 12.0 15.0 17.ꢀ 2.5 0.43
2-POLE MCF
Zt: Terminating Impedance
4-POLE MCF
Zt: Terminating Impedance
A
GND
Figure 5) MCF Test Circuits
Figure 4) SC Pkg with Dimensional Chart
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
ECS [ ECS, INC. ]
