Data Sheet

76
ECS, INC. INTERNATIONAL 1105 S. RIDGEVIEW, OLATHE, KS 66062 • 913-782-7787 • 800-237-1041 • FAX [phone] • WWW.ECSXTAL.COM
CRYSTAL FILTERS CRYSTAL FILTERS
MONOLITHIC CRYSTAL Filters
W
H7 Min.
Dø
4
B
0.3
B
A
A
OUT
L
1.5
GND
IN
GND
Attenuation
(dB)
(µ sec)
Stopband width
Stopband width
Attenuation
curve
Group
delay curve
Ripple
Frequency
Loss
fo
Nominal
frequency
Passband
width
Group delay
time
Attenuation
guaranteed
Specified
attenuation
Attenuation
t
Group delay
distortion
Spurious response
SG
MCF
C
LM
C
Zt Zt
2-POLE MCF
Zt: Terminating Impedance
SG
MCF
C
LM
C
Zt
Zt
4-POLE MCF
Zt: Terminating Impedance
MCF
C
Dot mark
ø 0.43 4.7
11.2
11.1 Max.
20±1
4.88 ± 0.2
Figure 1) HC-49/U
ø 0.35
8.0 Max.
7.3 Max.
8.0
2.5 Max.
15 Min.
3.75 ±0.2
3.2
GND
Figure 2) UM-1
Figure 5) MCF Test Circuits
Figure 4) SC Pkg with Dimensional Chart
Figure 3) MCF Characteristics Curve
DIMENSIONS AND ELECTRICAL DIAGRAMS (mm)
DIMENSIONS (mm)
CASE
LWH A BD
SC-1 11 8.5 11.5 7.4 2.0 0.30
SC-2 13.4 8.5 11.5 9.8 2.0 0.30
SC-3 15 12.0 15.0 9.0 2.5 0.43
SC-4 18.5 12.0 15.0 13.4 2.5 0.43
SC-5 23.0 12.0 15.0 17.8 2.5 0.43
NOMINAL NUMBER PASSBAND
RIPPLE
INSERTION STOPBAND STOPBAND GUARANTEED TERMINATING
MODEL FREQ. (fO) OF 3dB MIN. MAX. LOSS MAX. MAX. MAX. ATTENUATION IMPEDANCE CASE
(MHz) POLES (KHz) (dB) (dB) (dB) (KHz) (dB) (KHz) (dB) (fO
±KHz
) (Ohms/pF)
ECS-70K15A 70.0 2 ±7.5 1.0 2.5 15 ±25 35 -910 2000//-1.0 UM-1
ECS-70K15B 70.0 4 ±7.5 1.0 4.0 40 ±35 70 ±910 2000//-1.0 UM-1 x 2
ECS-70K20A 70.0 2 ±10 1.0 2.5 15 ±28 35 -910 2500//-1.0 UM-1
ECS-70K20B 70.0 4 ±10 1.0 4.0 35 ±40 70 ±910 2500//-1.0 UM-1 x 2
ECS-90M20A 90.0 2 ±10 1.0 2.5 15 ±30 35 -910 2500//-1.0 UM-1
ECS-90M20B 90.0 4 ±10 1.0 4.0 30 ±30 70 ±910 2500//-1.0 UM-1 x 2
70 MHz & 90 MHz Monolithic Crystal Filters (Operating Temperature -20 to +70˚C)
NOMINAL NUMBER PASSBAND
RIPPLE
INSERTION STOPBAND STOPBAND GUARANTEED TERMINATING
MODEL FREQ. (fO) OF 3dB MIN. MAX. LOSS MAX. MAX. MAX. ATTENUATION IMPEDANCE CASE
(MHz) POLES (KHz) (dB) (dB) (dB) (KHz) (dB) (KHz) (dB) (fO
±KHz
) (Ohms/pF)
ECS-55K15A 55.0 2 ±7.5 1.0 2.0 15 ±25 70 -910 600//3.0 UM-1
ECS-55K15B 55.0 4 ±7.5 1.0 3.0 30 ±25 90 ±910 600//1.5 UM-1 x 2
ECS-55K20A 55.0 2 ±10 1.0 2.0 15 ±30 75 -910 910//2.5 UM-1
ECS-55K20B 55.0 4 ±10 1.0 3.0 25 ±25 90 ±910 910//1.0 UM-1 x 2
ECS-55K30A 55.0 2 ±15 1.0 2.0 15 ±50 70 -910 1200//1.5 UM-1
ECS-55K30B 55.0 4 ±15 1.0 3.0 30 ±50 90 ±910 1200//0.7 UM-1 x 2
ECS-55K32A 55.0 2 ±16 0.5 2.5 4 ±29.5 65 -910 1250//1.3 UM-1
ECS-55K32B 55.0 4 ±16 1.0 5.0 30 ±52 80 ±910 1250//0.5 UM-1 x 2
55 MHz Monolithic Crystal Filters (Operating Temperature -20 to +70˚C)