Document
FILTERS FOR COMMUNICATIONS EQUIPMENT RESIN MOLDED, MULTI-ELEMENT CFVM/CFZM SERIES
The CFVM line of ceramic filters are 7-element devices connected in ladder form while the CFZM line of filters contain 9-elements. These highly selective filters offer improved stopband attenuation and are recommended for use in a variety of applications. Available in 450kHz and 455kHz versions.
FILTERS
DIMENSIONS: mm
CFVM450/455kHz
10.5
6.5
CFZM450/455kHz
6.3
0.15 1.1
3.5
8.3 ቢባ ቤብ ቦ
4.3
0.7 0.5
10.5
6.5
6.3
0.15
8.6 ቢባ
ቤብቦቧ
3.5 4.3
0.7 0.5
1.75
1.1
1.9 2.6 2.6
1.2
1.9 1.9 1.9
Note: For safety purposes, connect the output of filters to the IF amplifier through a DC blocking capacitor. Avoid applying a direct current to the output of ceramic filters.
SPECIFICATIONS
Nominal Center Part Number Frequency
(kHz)
CFVM455B
455
CFVM455C
455
CFVM455D
455
CFVM455E
455
CFVM455E10
455
CFVM455F
455
CFVM455G
455
CFVM455H
455
Nominal Center Part Number Frequency
(kHz)
CFZM455B
455
CFZM455C
455
CFZM455D
455
CFZM455E
455
CFZM455E10
455
CFZM455F
455
CFZM455G
455
CFZM455H
455
3dB Bandwidth (kHz) min.
±10 ±9 ±7 ±5.5 ±5.0 ±4.2 — —
3dB Bandwidth (kHz) min.
±10 ±9 ±7 ±5.5 ±5.0 ±4.2 — —
6dB Bandwidth (kHz) min.
±15 ±13 ±10 ±8 ±7.0 ±6 ±4 ±3
6dB Bandwidth (kHz) min.
±15 ±13 ±10 ±8 ±7.5 ±6 ±4 ±3
Ripple
(dB) max.
3 3 3 3 3 3 3 3
Ripple
(dB) max.
3 3 3 3 3 3 3 3
60dB Bandwidth (kHz) max.
±25 ±23 ±20 ±16 ±12.5 ±12 ±10 ±7.5
70dB Bandwidth (kHz) max.
±25 ±23 ±20 ±16 ±12.5 ±12 ±10 ±7.5
Attenuation (dB) min.
50 50 50 50 50 50 50 50
Attenuation (dB) min.
70 70 70 70 70 70 70 70
Spurious Response (dB) min.
25 25 25 25 25 25 25 25
Spurious Response (dB) min.
40 40 40 40 40 50 50 50
Insertion Loss (dB) max.
4 4 4 6 6 6 6 6
Insertion Loss (dB) max.
4 4 4 6 6 6 6 7
Input/Output Impedance (⍀)
1000 1000 1500 1500 1500 1500 1500 1500
Input/Output Impedance (⍀)
1000 1000 1500 1500 1500 1500 1500 1500
PART NUMBERING SYSTEM
CFVM/CFZM
455 D
SERIES
450 or 455 Frequency in kHz
BANDWIDTH
̆Applicable in North American market only. ̄Applicable in European market only. For more detailed information regarding this product line in North America, see Catalog No. P-05-D. To receive additional information on Murata Products call 1-800 -831-9172. For more detailed information regarding this product line in Europe, see Catalog No. P05E-8.
119
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