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QEF21M4A12

Description
Crystal Filter, 1 Function(s), 21.4MHz, 6kHz BW(delta f), Monolithic,
CategoryAnalog mixed-signal IC    filter   
File Size25KB,1 Pages
ManufacturerRakon Limited
Download Datasheet Parametric View All

QEF21M4A12 Overview

Crystal Filter, 1 Function(s), 21.4MHz, 6kHz BW(delta f), Monolithic,

QEF21M4A12 Parametric

Parameter NameAttribute value
MakerRakon Limited
Reach Compliance Codeunknown
Other features2 POLE
Maximum attenuation frequency (+/- delta f)25 kHz
Attenuation at maximum frequency20 dB
Bandwidth (+/- delta f)6 kHz
Center frequency or cutoff frequency (fo/fc)21.4 MHz
structureMONOLITHIC
filter typeCRYSTAL FILTER
Input/output impedance1200 OHM//3
Maximum insertion loss2 dB
Installation typeTHROUGH HOLE MOUNT
Number of functions1

QEF21M4A12 Preview

STANDARD CRYSTAL FILTERS
21.4 MHz ; Monolithic crystal filters ; Through hole
21.4 MHz
Monolithic crystal filters - Standard - Through hole
T
YPE
N
B
.
POLES
P
ASSBAND
dB
3
3
3
6
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
± KHz
3.75
3.75
3.75
3.75
6
6
6
6
7.5
7.5
7.5
7.5
10
10
10
10
15
15
15
15
S
TOPBAND
ATTENUATION
QEF21M4A7.5
QEF21M4B7.5
QEF21M4C7.5
QEF21M4D7.5
QEF21M4A12
QEF21M4B12
QEF21M4C12
QEF21M4D12
QEF21M4A15
QEF21M4B15
QEF21M4C15
QEF21M4D15
QEF21M4A20
QEF21M4B20
QEF21M4C20
QEF21M4D20
QEF21M4A30
QEF21M4B30
QEF21M4C30
QEF21M4D30
2
4
6
8
2
4
6
8
2
4
6
8
2
4
6
8
2
4
6
8
dB ± KHz
20
18
40
14
60 12.5
65 8.75
20
25
40
20
45
14
65
14
18
25
40
25
60
25
65 17.5
18
40
60
65
15
30
65
65
34
34
33
23
50
45
55
35
dB
85
85
80
G
UARANT
.
A
TTENUAT
.
± KHz
dB
30
60
65
12.5
90
30
60
65
20
90
30
50
65
25
85
30
50
65
90
30
60
70
90
R
IPPLE
I
NSERTION
T
ERMINATION
P
ACKAGE
O
LD
T
EMEX
MAX
.
LOSS MAX
.
I
MPEDANCE
REFERENCE
dB
dB
KΩ//pF
0.5
2
0.85//5
UM1
TE5180 M2
0.85//5 Cc16pF UM1 x2 TE5190 2M2
1
2.5
2
3
0.85//5
SM2
-
2
4
0.85//5
SM2
-
0.5
2
1.2//3
UM1
-
1.2//2.5 Cc10pF UM1 x2
-
1
2.5
2
3
1.6//1
SM2
-
2
3
1.2//2.5
SM2
-
0.5
1.5
1.5//2
UM1
TE5260 M2
1
2
1.5//2 Cc8pF UM1 x2 TE5270 2M2
2
2.5
1.5//2
SM2
-
2
3
1.5//2
SM2
-
0.5
1
2
2
1
1
2
2
2
2
3
4
1.5
2.5
3
3.5
1.8//1.5
1.8//1.5 Cc7pF
1.6//2
1.5//2
3//0
3//0
3//0
2.2//0.5
UM1
UM1 x2
SM2
SM2
UM1
-
-
-
-
TE5300 M2
85
35
85
55
UM1 x2 TE5310 2M2
SM2
-
SM2
-
Notes:
- Parallel termination capacity is adjusted for optimum filter response.
4-16
Vol. 2
SALES OFFICES: VISIT OUR WEB SITE AT
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