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P21U8D

Description
Crystal Filter, 1 Function(s), 21.4MHz, 3.75kHz BW(delta f), Monolithic
CategoryAnalog mixed-signal IC    filter   
File Size30KB,2 Pages
ManufacturerPletronics
Download Datasheet Parametric View All

P21U8D Overview

Crystal Filter, 1 Function(s), 21.4MHz, 3.75kHz BW(delta f), Monolithic

P21U8D Parametric

Parameter NameAttribute value
MakerPletronics
Reach Compliance Codeunknown
Other features8 POLES
Maximum attenuation frequency (+/- delta f)9 kHz
Attenuation at maximum frequency60 dB
Bandwidth (+/- delta f)3.75 kHz
Center frequency or cutoff frequency (fo/fc)21.4 MHz
structureMONOLITHIC
filter typeCRYSTAL FILTER
high11.5 mm
Input/output impedance850 OHM//4
Maximum insertion loss4 dB
length11 mm
Manufacturer's serial numberP21U8D
Installation typeTHROUGH HOLE MOUNT
Number of functions1
physical sizeL11XB8.5XH11.5 (mm)/L0.433XB0.335XH0.453 (inch)
Base Number Matches1
PLETRONICS 21.4 MHz MONOLITHIC CRYSTAL FILTER SERIES
PLETRONICS 21.4 MHz MONOLITHIC CRYSTAL FILTER
(UM-1) SERIES
©
Package Outlines
Part#
(Click to
Order)
Channel
Spacing
# of
poles
Passband
dB
Stopband
dB
Ripple
kHz
dB
Loss
dB
Terminating
Impedance
//pF//pF
850//6
850//4//16
850//4
850//4
1200//3
1200//2//10.5
1200//2
1200//2
1200//2
1600//1.5
1600//1.5
1600//3
1600//2//7
1600//2
1600//2
1600//2
2300//-1
2300//0.5//3
2300//0.5
2300//0.5
Package
Code
kHz
±3.75
±3.75
±3.75
±3.75
±6.0
±6.0
±6.0
±6.0
±6.0
±6.0
±6.0
±7.5
±7.5
±7.5
±7.5
±7.5
±15.0
±15.0
±15.0
±15.0
kHz
±18.0
±14.0
±8.75
±9.0
±25.0
±20.0
±14.0
±14.0
±14.0
±14.0
±14.0
±25.0
±25.0
±17.5
±17.5
±16.0
±50.0
±50.0
±35.0
±35.0
dB
P21U8A
P21U8B
P21U8C
P21U8D
P21U12A
P21U12B
P21U12C
P21U12D
P21U12E
P21U12CH
P21U12DH
P21U15A
P21U15B
P21U15C
P21U15D
P21U15E
P21U30A
P21U30B
P21U30C
P21U30D
2
4
3
3
3
3
3
3
3
3
3
3
3
3
3
6
6
6
3
3
3
3
20
40
45
60
20
40
45
65
75
45
65
18
40
45
65
75
18
40
45
65
0.5
1.0
65
90
±12.5
±12.5
2.0
2.0
0.5
1.0
65
90
90
65
90
±20.0
±20.0
±16.0
±20.0
±20.0
2.0
2.0
2.0
2.0
2.0
0.5
1.0
65
90
90
±25.0
±25.0
±18.0
2.0
2.0
2.0
0.5
1.0
65
80
±50.0
±50.0
2.0
2.0
2.0
2.5
3.5
4.0
1.5
2.0
3.0
3.0
3.5
3.0
3.0
1.5
2.0
2.5
3.0
4.0
1.5
2.0
2.5
3.0
A-5
A-5X2
D-5
D-5
A-5
A-5X2
D-5
D-5
E-5
D-5
D-5
A-5
A-5X2
D-5
D-5
E-5
A-5
A-5X2
D-5
D-5
12.5
kHz
6
8
2
4
6
20
kHz
8
10
6
8
2
4
25
kHz
6
8
10
2
4
50
kHz
6
8
http://www.pletronics.com/21MHZ.htm (1 of 2) [1/17/2002 3:04:58 PM]
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