Center Frequency Bandwidth (Total) Ripple (max.) *Insertion Stop Band Group Delay (max.) Source
____________________________________________________________
______________
___
Part Nom. Tol. 3dB (min.) 6dB (min.) 40dB (max.) Point of Loss Atten. (min.) Point of And Load
Number (kHz) ± (kHz) (kHz) (kHz) (kHz) dB Measure (max.) at ± 100kHz SMeasure Impedance
dB dB (Ohms)
CFUCG455E-TC 455 1.5 — 15 30 1.5 — 6 27 — — 1500
CFUCG455F-TC 455 1.5 — 12 25 1.5 — 6 27 — — 1500
CFUCG455G-TC 455 1 — 9 20 1.5 — 6 25 — — 1500
CFUCG455FX-TC 455 1.5 — 12 30 1 — 6 27 25 — 1500
CFUCG455GX-TC 455 1 — 9 25 1 — 6 25 25 — 1500
CFUCG455HX-TC 455 1 — 6 20 1 — 7 25 25 — 1500
SFGCG455AX-TC 455 2.0 — 35 80 1 — 4 25 15 — 1000
SFGCG455BX-TC 455 1.5 — 30 70 1 — 5 25 15 — 1000
SFGCG455CX-TC 455 1.5 — 25 60 1 — 6 25 15 — 1000
SFGCG455DX-TC 455 1 — 20 50 1 — 7 23 20 — 1500
SFGCG455EX-TC 455 1 — 15 40 1 — 8 23 20 — 1500
SFPC455E-TC01 455 1.5 — 15 30 — — 6 27 — — 1500
SFPC455F-TC01 455 1.5 — 12 25 — — 6 27 — — 1500
SFPC455G-TC01 455 1 — 9 20 — — 6 25 — — 1500
SFPC455H-TC01 455 1 — 6 18 — — 6 25 — — 2000
CFWC455CZ-TC 455 — 21 to 26 — — 0.5 ±10.5 6 50 27 ±10.5 1000
CFWC455CZ2-TC 455 — 18 to 22 — — 0.5 ±9 6 50 27 ±9 1000
DIMENSIONS: mm SFPC
CFUCG/SFGCG
PRELIMINARY SPECIFICATIONS SMD 455kHz
*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.
CG01-J 437
PIEZO FILTERS
SURFACE MOUNTED CHIP PIEZOELECTRIC CERAMICS FILTERS
FOR AM APPLICATIONS CFUCG, SFGCG, SFPC, CFWC 455kHz
Along with the development of the AM chip filter, IF filters
for AM radios have also been made smaller, thinner and in
a chip configuration for surface mounting. This is one more
example of Murata Electronics’ leadership in converting
conventional electronic components to chip technology.
6.5
1.0 4.0 3.0
1.0
1.5 1.5
6.0
1.0 ± 0.1 1.0 ± 0.1 1.2 ± 0.1
0.9 ± 0.1
Sealing
CO.5
Sealing
7.5
max. 4.0
max.
: INPUT
: OUTPUT
: GROUND
7.0
50D
*
7.5
3.0
1.5 1.5 1.6
2.0 2.0
8.4
max. 5.0 max.
Sealing
SPECIFICATIONS
CFWC TEST CIRCUIT
: INPUT
: OUTPUT
: GROUND
Body Color: Cream
Tolerance without notice: ±0.3 mm
(in mm)
Sealing
Sealing
7.5 max.
6.5
1.2 ± 0.1
3.0 5.5 3.0
11.5
1.5 ± 0.3 5.5 3.0
1.2 ± 0.1 1.2 ± 0.1
1.2 ± 0.1
1.5 ± 0.3
3.0
max.
C0.3
Input Marking
Rg + R1 = Input/Output Impedance
CFWC455 Series
R.F.
Voltmeter
E2
R1
Rg R2
S.S.G.
0 dBm
E1
Connection
: INPUT
: OUTPUT
: GROUND
E4
*
*: EIA-J Monthly Code
•
PIEZO FILTERS
PIEZO FILTERS
SURFACE MOUNTED CHIP PIEZOELECTRIC CERAMIC FILTERS
FOR AM APPLICATIONS SFGCG, SFPC, CFUCG, CFWC 455kHz
438 CG01-J
CHARACTERISTICS (TYP.)
PAD DIMENSIONS: mm
PLASTIC TAPE DIMENSIONS: mm
SFGCG455BX
405 455 505
Frequency (kHz)
Attenuation (dB)
G.D.T. (sec.)
Attenuation (dB)
445 455 465
Frequency (kHz)
400
300
200
100
0
0
4
8
12
16
20
24
28
32
36
40
200
100
0
0
10
20
30
40
50
60
70
80
90
100
CFWC455E4
SFPC SFGCG/CFUCG CFWC
SFPC – TC01 REEL
SFGCG/CFUCG – TC REEL
CFWC – TC REEL
6.95
1.2 1.4
0.7 0.7 11.5
1.2
2.0
2.0
3.5
3.0
1.8
0.75
1.55
2.3
5.5
GND
IN OUT
4-R3.0 GND
3.0
7.5 max.
6.5
2.475 2.0
1.1
0.925 2.0
0.9
1.55
7.45
1.6
0.8
2.0
4.0 ± 0.1
2.0 ± 0.1
12.0 ± 0.1
7.8 ± 0.1
2.2 ± 0.2
13.0 ± 0.2
17.5 ± 1.0
7.4 ± 0.1
Covering Tape 5.3 ± 0.1
8.8 ± 0.1
7.5 ± 0.1
6.75 ± 0.1
9.2 ± 0.1
16.0 ± 0.3
1.75 ± 0.1
(330)
1.5 –0.1
+0.0
(80)
2.0 ± 0.1
8.0 ± 0.1
6.7 ± 0.1
2.0 ± 0.2
13.0 ± 0.5
22.5 max.
17.5 ± 0.5
6.3 ± 0.1
Covering Tape
Direction of Feed 4.2 ± 0.1
7.7 ± 0.1
7.5 ± 0.1
6.75 ± 0.1
8.1 ± 0.1
16.0 ± 0.2
1.75 ± 0.1
(178)
1.5 –0.1
+0.0
(80)
4.0 ± 0.1
2.0 ± 0.1
12.0 ± 0.1 8.1 ± 0.1
2.0 ± 0.2
13.0 ± 0.5
25.5 ± 0.5
30.5 max.
7.7 ± 0.1
Covering Tape
Direction of Feed
3.2 ± 0.1
12.0 ± 0.1
0.4 ± 0.1
11.5 ± 0.1
12.4 ± 0.1
24.0 ± 0.3
1.75 ± 0.1
(178)
1.5 –0.1
+0.0
(62)
G.D.T. (sec.)
4.0 ± 0.1
1.2
22.9 max.
