Datasheet

21.4MHz Monolithic Crystal Filters
GMCF-21
12.5kHz Channel Spacing
Model
Number
Centre
Frequency
(MHz)
Number
of Poles
Pass Band
dB @ kHz
Attenuation
Band
dB @ kHz
In-Band
Ripple
(dB)
Insertion
Loss
(dB)
21G7A
21.400
2
3
±3.75
20
±18.0
0.5
1.5
21G7B
21.400
4
3
±3.75
40
±14.0
1.0
2.5
21G7C
21G7D
21.400
21.400
6
8
3
3
±3.75
±3.75
65
90
±12.5
±12.5
2.0
2.0
3.0
4.0
In-Band
Ripple
(dB)
Insertion
Loss
(dB)
Guaranteed
Attenuation
(dB @ kHz)
35
50
65
80
65
90
+350 ~ +1000
-200 ~ -1000
+350 ~ +1000
-200 ~ -1000
±12.5 ~ ±300
±12.5 ~ ±300
Termination
(Ω // pF)
Package
Style
850 // 6.0
UM-1/3L
850 // 5.0
(CC=16pF)
850 // 5.0
850 // 5.0
UM-1/3Lx2
F11/8A
F11/8A
20.0kHz Channel Spacing
Model
Number
Centre
Frequency
(MHz)
Number
of Poles
Pass Band
dB @ kHz
Attenuation
Band
dB @ kHz
21G12A
21.400
2
3
±6.0
20
±25.0
0.5
1.5
21G12B
21.400
4
3
±6.0
40
±20.0
1.0
2.5
21G12C
21G12D
21G12E
21.400
21.400
21.400
6
8
10
3
3
3
±6.0
±6.0
±6.0
65
90
75
90
±20.0
±20.0
±14.0
±16.0
2.0
2.0
2.0
2.5
3.0
3.5
In-Band
Ripple
(dB)
Insertion
Loss
(dB)
Guaranteed
Attenuation
(dB @ kHz)
35
50
65
80
65
90
+350 ~ +1000
-200 ~ -1000
+350 ~ +1000
-200 ~ -1000
±20.0 ~ ±300
±20.0 ~ ±300
Termination
(Ω // pF)
Package
Style
1200 // 3.0
UM-1/3L
1200 // 2.5
(CC=10.5pF)
1200 // 2.5
1200 // 2.5
1200 // 2.0
UM-1/3Lx2
F11/8A
F11/8A
F13/8A
25.0kHz Channel Spacing
Model
Number
Centre
Frequency
(MHz)
Number
of Poles
Pass Band
dB @ kHz
Attenuation
Band
dB @ kHz
21G15A
21.400
2
3
±7.5
18
±25.0
0.5
1.5
21G15B
21.400
4
3
±7.5
40
±25.0
1.0
2.5
21G15C
21G15D
21G15E
21.400
21.400
21.400
6
8
10
3
3
6
±7.5
±7.5
±7.5
65
90
75
90
±25.0
±25.0
±16.0
±18.0
2.0
2.0
2.0
2.5
3.0
4.0
In-Band
Ripple
(dB)
Insertion
Loss
(dB)
Guaranteed
Attenuation
(dB @ kHz)
35
50
65
80
65
90
+350 ~ +1000
-200 ~ -1000
+350 ~ +1000
-200 ~ -1000
±25.0 ~ ±300
±25.0 ~ ±300
Termination
(Ω // pF)
Package
Style
1500 // 2.0
UM-1/3L
1500 // 2.0
(CC=8.0pF)
1500 // 2.0
1500 // 2.0
1600 // 2.0
UM-1/3Lx2
F11/8A
F11/8A
F13/8A
35.0kHz Channel Spacing
Model
Number
Centre
Frequency
(MHz)
Number
of Poles
Pass Band
dB @ kHz
Attenuation
Band
dB @ kHz
21G20A
21.400
2
3
±10.0
18
±34.0
0.5
2.0
21G20B
21.400
4
3
±10.0
40
±35.0
1.0
21G20C
21G20D
21.400
21.400
6
8
3
3
±10.0
±10.0
60
80
±34.0
±30.0
Guaranteed
Attenuation
(dB @ kHz)
2.5
35
50
65
+350 ~ +1000
-200 ~ -1000
±300 ~ ±1000
2.0
2.0
2.5
3.0
60
80
±34.0 ~ ±300
±30.0 ~ ±300
In-Band
Ripple
(dB)
Insertion
Loss
(dB)
Termination
(Ω // pF)
Package
Style
1800 // 1.5
UM-1/3L
1500 // 2.0
(CC=6.5pF)
1800 // 1.5
1800 // 1.5
UM-1/3Lx2
F11/8A
F11/8A
50.0kHz Channel Spacing
Model
Number
Centre
Frequency
(MHz)
Number
of Poles
Pass Band
dB @ kHz
Attenuation
Band
dB @ kHz
21G30A
21.400
2
3
±15.0
15
±45.0
0.5
1.5
21G30B
21.400
4
3
±15.0
40
±50.0
1.0
2.5
21G30C
21G30D
21.400
21.400
6
8
3
3
±15.0
±15.0
65
80
±50.0
±50.0
2.0
2.0
2.5
3.0
Guaranteed
Attenuation
(dB @ kHz)
35
45
65
80
65
80
+350 ~ +1000
-300 ~ -1000
+350 ~ +1000
-300 ~ -1000
±50.0 ~ ±300
±50.0 ~ ±300
Termination
(Ω // pF)
Package
Style
3000 // 0.5
UM-1/3L
3000 // -0.5
(CC=3.0pF)
2200 // 0.5
2200 // 0.5
UM-1/3Lx2
F11/8A
F11/8A
 Operating temperature range of -20 to +70°C.
 Most UM-1 models also available in UM-4 or UM-5
 Formed leads and jacket SM option for UM-1, UM-4, UM-5
Tel: +44 1460 256 100
21 Jan 2005
Fax: +44 1460 256 101
E-mail: sales@golledge.com
Web: www.golledge.com
Package Drawings
GMCF
UM-1/3L, UM-4/3L & UM-5/3L
HC49/3L & HC49T/3L
Connec ƟŶŐ
Marks
R//C
Connec ƟŶŐ
Marks
R//C
R//C
Cc
CONNECTIONS
CONNECTIONS
UM-1/3Lx2 is a pair of UM-1/3Ls connected as shown.
UM-1JN/3L, UM-4JN/3L & UM-5JN/3L
Tel: +44 1460 256 100
06 Mar 2000
Fax: +44 1460 256 101
R//C
Cc
HC49/3Lx2 is a pair of HC49/3Ls connected as shown.
UM-1JC/3L, UM-4JC/3L & UM-5JC/3L
E-mail: sales@golledge.com
Web: www.golledge.com
Package Drawings
GMCF
F11/8A
F13/8A
F15/12B
F18/12P
Tel: +44 1460 256 100
06 Mar 2000
Fax: +44 1460 256 101
E-mail: sales@golledge.com
Web: www.golledge.com