ECS-21K-30A ECS Inc, ECS-21K-30A Datasheet - Page 3

• Manufacturer Part Number: ECS-21K-30A
• Description: MONO CRYST FILTER 50KHZ 2POLE
• Manufacturer: ECS Inc

Specifications of ECS-21K-30A

• Frequency: 21.4MHz Center
• Impedance: 1.5K Ohm
• Filter Type: Monolythic Crystal
• Insertion Loss: 1.5dB
• Ripple: 0.5dB
• Package / Case: 3 Pin SIP
• Mounting Type: Through Hole
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: X711

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