MONOLITHIC CRYSTAL FILTERS
ECS’s Monolithic Crystal Filters have very
FEATURES
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
•
High stability for wide temperature ranges
• Sharp cut-off
• RoHS Compliant (Pb Free)
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.
ELECTRICAL CHARACTERISTICS (10.7 and 21.4 MHz)
For 12.5 KHz Channel Spacing (Operating Temperature -20 to +70˚C)
RIPPLE
MAX.
(dB)
NOMINAL NUMBER
PASSBAND
3dB MIN.
(KHz)
INSERTION
LOSS MAX.
(dB)
STOPBAND
MAX.
(dB) (KHz)
STOPBAND
GUARANTEED
ATTENUATION
(dB) (fO
KHz)
TERMINATING
IMPEDANCE
(Ohms/pF)
MODEL
FREQ. (f
(MHz)
O
)
OF
MAX.
CASE
POLES
(dB) (KHz)
35 +300 ~ +1000
50 -200 ~ -1000
65 +300 ~ +1000
ꢀ0 -200 ~ -1000
65 12.5 ~ 300
90 12.5 ~ 300
75 -910
ECS-10.7-7.5A
ECS-10.7-7.5B
10.7
10.7
2
4
3.75
3.75
0.5
1.0
1.5
2.5
20 1ꢀ
40 14
1ꢀ00//5.0
1ꢀ00//4.0
HC-49/U
HC-49/U x 2
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
10.7
10.7
21.4
21.4
21.4
21.4
21.4
6
ꢀ
2
4
6
3.75
3.75
3.75
3.75
3.75
3.75
3.75
2.0
2.0
0.5
1.0
2.0
2.0
2.0
3.5
4.0
2.0
2.5
3.0
4.0
4.5
45 ꢀ.75
65 ꢀ.75
1ꢀ 12.5
35 12.5
45 ꢀ.75
65 12.5
90 12.5
1ꢀ00//3.5
1ꢀ00//3.5
1500//6.0
ꢀ50//5.0
ꢀ50//5.0
ꢀ50//5.0
ꢀ50//5.0
SC-3
SC-4
UM-1
UM-1 x 2
SC-1
90 910
65 12.5
90 12.5
90 10.5
65 12.5 ~ 300
90 12.5 ~ 300
90 12.5 ~ 300
ꢀ
10
65
9
SC-1
SC-2
75 ꢀ.75
For 20 KHz Channel Spacing (Operating Temperature -20 to +70˚C)
RIPPLE
MAX.
(dB)
NOMINAL
FREQ. (f
(MHz)
NUMBER PASSBAND
INSERTION
LOSS MAX.
(dB)
STOPBAND
MAX.
(dB) (KHz)
STOPBAND
MAX.
(dB) (KHz)
GUARANTEED
ATTENUATION
(dB) (fO
KHz)
TERMINATING
IMPEDANCE
(Ohms/pF)
MODEL
O
)
OF
3dB MIN.
(KHz)
CASE
POLES
35 +300 ~ +1000
40 -200 ~ -1000
65 +300 ~ +1000
ꢀ0 -200 ~ -1000
65 20 ~ 300
90 20 ~ 300
35 +350 ~ +1000
50 -200 ~ -1000
65 +350 ~ +1000
70 -200 ~ -1000
65 20 ~ 300
90 20 ~ 300
ECS-10.7-12A
MF 10.7-12B
10.7
10.7
2
4
6.0
6.0
0.5
1.0
2.0
2.5
1ꢀ 23
40 20
2500//2.5
2500//1.5
HC-49/U
HC-49/U x 2
MF 10.7-12C
MF 10.7-12D
10.7
10.7
6
ꢀ
6.0
6.0
2.0
2.0
3.0
4.0
45 14
65 14
60 20
90 20
2ꢀ00//1.0
2ꢀ00//1.0
SC-3
SC-4
ECS-21K12A
ECS-21K12B
21.4
21.4
2
4
6.0
6.0
0.5
1.0
2.0
2.5
1ꢀ 23
40 20
1200//3.0
1200//2.5
UM-1
UM-1 x 2
ECS-21K12C
ECS-21K12D
21.4
21.4
6
ꢀ
6.0
6.0
2.0
2.0
3.0
4.0
45 14
65 14
65 20
90 20
1200//2.5
1200//2.5
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
ECS [ ECS, INC. ]
