ECS-10.7-7.5A Datasheet, PDF (1/3 Pages) ECS, Inc. – MONOLITHIC CRYSTAL FILTERS

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
NOMINAL NUMBER
FREQ. (fO) OF
(MHz) POLES
PASSBAND
3dB MIN.
(KHz)
RIPPLE
MAX.
(dB)
INSERTION
LOSS MAX.
(dB)
STOPBAND
MAX.
(dB) (KHz)
ECS-10.7-7.5A
10.7
2
±3.75
0.5
1.5
20 ±18
ECS-10.7-7.5B
10.7
4
±3.75
1.0
ECS-10.7-7.5C
10.7
6
±3.75
2.0
ECS-10.7-7.5D
10.7
8
±3.75
2.0
ECS-21K7.5A
21.4
2
±3.75
0.5
ECS-21K7.5B
21.4
4
±3.75
1.0
ECS-21K7.5C
21.4
6
±3.75
2.0
ECS-21K7.5D
21.4
8
±3.75
2.0
ECS-21K7.5E
21.4
10
±3.75
2.0
2.5
40 ±14
3.5
45 ±8.75
4.0
65 ±8.75
2.0
18 ±12.5
2.5
35 ±12.5
3.0
45 ±8.75
4.0
65 ±9
4.5
75 ±8.75
STOPBAND
MAX.
(dB) (KHz)
65 ±12.5
90 ±12.5
65 ±12.5
90 ±12.5
90 ±10.5
GUARANTEED
ATTENUATION
(dB) (fO ±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)
CASE
1800//5.0 HC-49/U
1800//4.0
1800//3.5
1800//3.5
1500//6.0
850//5.0
850//5.0
850//5.0
850//5.0
HC-49/U x 2
SC-3
SC-4
UM-1
UM-1 x 2
SC-1
SC-1
SC-2
For 20 KHz Channel Spacing (Operating Temperature -20 to +70˚C)
MODEL
NOMINAL
FREQ. (fO)
(MHz)
NUMBER PASSBAND
OF
3dB MIN.
POLES
(KHz)
RIPPLE
MAX.
(dB)
INSERTION
LOSS MAX.
(dB)
ECS-10.7-12A
10.7
2
±6.0
0.5
2.0
STOPBAND
MAX.
(dB) (KHz)
18 ±23
MF 10.7-12B
10.7
MF 10.7-12C
10.7
MF 10.7-12D
10.7
ECS-21K12A
21.4
4
±6.0
1.0
6
±6.0
2.0
8
±6.0
2.0
2
±6.0
0.5
2.5
40 ±20
3.0
45 ±14
4.0
65 ±14
2.0
18 ±23
ECS-21K12B
21.4
ECS-21K12C
21.4
ECS-21K12D
21.4
4
±6.0
1.0
6
±6.0
2.0
8
±6.0
2.0
2.5
40 ±20
3.0
45 ±14
4.0
65 ±14
STOPBAND
MAX.
(dB) (KHz)
60 ±20
90 ±20
65 ±20
90 ±20
GUARANTEED
ATTENUATION
(dB) (fO ±KHz)
35 +300 ~ +1000
40 -200 ~ -1000
65 +300 ~ +1000
80 -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
TERMINATING
IMPEDANCE
(Ohms/pF)
CASE
2500//2.5 HC-49/U
2500//1.5
2800//1.0
2800//1.0
1200//3.0
HC-49/U x 2
SC-3
SC-4
UM-1
1200//2.5
1200//2.5
1200//2.5
UM-1 x 2
SC-1
SC-1
ECS, INC. INTERNATIONAL 1105 S. RIDGEVIEW, OLATHE, KS 66062 • 913-782-7787 • 800-237-1041 • FAX [phone] • WWW.ECSXTAL.COM
CRYSTAL FILTERS 74 CRYSTAL FILTERS