CFWS450HT [MURATA]
Ceramic BPF, 0.45MHz;
| 型号： | CFWS450HT |
| 厂家： | 
muRata |
| 描述： | Ceramic BPF, 0.45MHz |
| 文件： | 总5页 (文件大小：153K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
This is the PDF file of catalog No.P10E-4.
No.P10E4.pdf 99.5.24
CERAFIL® is the Registered Trademark
of Murata Manufacturing Co., Ltd.
CERAMIC FILTER
High Selectivity Ladder Type
Series 450 - 470kHz
SFPS/CFWS
!SPECIFICATION
Selectivity
6dB Band
Width
(kHz) min.
Insertion Matching
Part
Number
Compo-
sition
Loss
Impedance
T9kHz off
(dB) min.
(dB) max.
(kΩ)
T3.0
(T4.0)
T3.0
4 Elements
Ladder Type
SFPS450H
CFWS450HT
40 (60)
50 (75)
6 (1.5)
6 (2.0)
2.0
6 Elements
Ladder Type
2.0
(
(T4.0)
SFPS450H
CFWS450HT
) : Typ. value
"For synthesizers, the available center frequencies are 450, 459
and 468 kHz. Standard tolerance is T1 kHz.
"Because of excellent shape factor, wide-band width and high
selectivity, this series is the most suitable to car radios and all-
band radios.
"SFPS 450I, designed for narrow band use, are also available.
Please contact us for further information.
!DIMENSIONS
SFPS450H
8.0T0.3
CFWS450HT
11.0T0.5
MARKING
MARKING
EIAJ
CODE
EIAJ
CODE
!THE RECOMMENDED IFT (7Z7mm)
Type
SFPS/CFWS-H
Item
0.8T0.1
0.8T0.1
Winding specifications
(1) - (2)
(2) - (3)
(4) - (6)
28T
0.15
0.15T0.05
0.6T0.1
0.6T0.1
2.7T0.3
1.2T0.5
2.9T0.3 2.9T0.3 2.6T0.3
(4) (3) (2) (1)
(5)
1.2T0.5
S(3)
(2)
(4)S
(6)
Connection
(1) Input
(2) Ground
(3) Output
Connection
(2)
(1)
(1)
Input
(3)
(2)(3)(4) Ground
60T
125T
(1)
(5)
Output
2.3T0.5 2.3T0.3
3.3T0.5
(in mm)
(Bottom view)
No-load Qu
40
Tuning Capacitance
180pF
®
-
"Matching of CERAFIL SFPS/CFWS H with the IFT is decided
by the Qu of the IFT and the IFT secondary side impedance, |Z2|.
Set the Qu at about 40 because a Qu value which is too high
(e.g., 90) may produce ripple in the waveform. It is recommended
to mach the impedance of |Z2| with that of the CERAFIL®.
!TEST CIRCUIT
CFWS450HT
SFPS450H
(3)
(5)
2kΩ
(1)
2kΩ
(1)
(2)
(2) (3) (4)
RF
RF
Volt meter
Volt meter
S.S.G.
S.S.G.
(Rg=50Ω)
(Rg=50Ω)
3
This is the PDF file of catalog No.P10E-4.
No.P10E4.pdf 99.5.24
CERAFIL® is the Registered Trademark
of Murata Manufacturing Co., Ltd.
CERAMIC FILTER
High Selectivity Ladder Type
Series 450 - 470kHz
SFPS/CFWS
!FREQUENCY CHARACTERISTICS (with IFT)
"Frequency Characteristics
IFT+SFPS450H
IFT+CFWS450HT
0
10
20
30
40
50
60
70
0
10
20
30
40
50
60
70
430
440
450
460
470
430
440
450
460
470
Frequency (kHz)
Frequency (kHz)
"Spurious Characteristics
IFT+SFPS450H
IFT+CFWS450HT
0
10
20
30
40
50
60
70
80
0
10
20
30
40
50
60
70
80
0
0
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
Frequency (kHz)
Frequency (kHz)
4
This is the PDF file of catalog No.P10E-4.
No.P10E4.pdf 99.5.24
CERAFIL® is the Registered Trademark
of Murata Manufacturing Co., Ltd.
CERAMIC FILTER
Series Temperature
-
-
SF /PF /BF
!TEMPERATURE CHARACTERISTICS
SFPS450H
SFZ455JL
+1
Temperature (D)
60
80
+1
Temperature (D)
40
40
40
20
20
20
-
20
0
0
60
40
40
40
20
20
20
80
0
0
-20
-20
-20
0
0
0
-1
-1
+1
0
+1
0
60
80
-
20
20
60
80
Temperature (D)
Temperature (D)
-1
-1
+1
0
Temperature (D)
60
80
+1
0
Temperature (D)
60
80
-
0
-1
-1
PFW455J
+1
0
60
40
20
80
-20
0
Temperature (D)
-1
+1
0
60
40
80
-
20
20
0
0
20
20
Temperature (D)
-1
+1
0
-
60
40
80
Temperature (D)
-1
11
This is the PDF file of catalog No.P10E-4.
No.P10E4.pdf 99.5.24
CERAFIL® is the Registered Trademark
of Murata Manufacturing Co., Ltd.
CERAMIC FILTER
Series Application
-
-
SF /PF /BF
!APPLICATION CIRCUIT
"Car Radio (SFPS450H/BFU450C4N)
"Car Radio (SFZ455JL3/SFU455A3)
BFU450C4N
Vcc (+8V)
Station Det. Out
Ant
Input
100k
430p
V tune
10k
2.7k
120
AF Out
+
4.7µH
10k
SFU455A3
0.047µ
+
0.01µ
100p
0.01µ
0.47µ
20
1
19
2
18
3
17
16
15
14
13
12
9
11
10
2
4
6
8
10
12
14
16
18
µPC1216V2 (NEC)
µPC1216V2 (NEC)
4
5
6
7
8
1
3
5
7
9
11
13
15
17
19
1µ
+
Det.
Output
+
ANT.
0.01µ
SFPS450H
100µH
0.047
µZ2
SFZ455JL3
100
Vcc
(+13V)
2SK315
"Portable Radio (SFU455B)
FM PF
FM OSC
FM CERAFIL
®
CERAMIC DISCRIMINATOR
(CDA10.7MC1)
(SFE10.7MA5)
+
FM/AM
BAND SELECT
R
+
IF
OUT
FM IF
IN
25
26
Vcc
15
9
7
6
14 17
2
19
FM DISCRI
METER
REG
OUT
FM
FM IF
AMP
8
FM
TUNING
METER
RIPPLE
FILTER
FRONT
END
REGULATOR
12
13
10
+
BPF
DETECTOR
28
1
AM ANT
CXA1019M (SONY)
VOL
AM
FRONT
END
AM IF
AF
AMP
PRE/POWER
AMP
27
SP
+
DETECTOR
AGC
AMP
AM IF
IN
20 16
AF IN
11
18
22
23
21
+
4
24
3
DEP
OUT
AM OSC
+
+
+
®
AM CERAFIL
(SFU455B)
VOL
12
This is the PDF file of catalog No.P10E-4.
No.P10E4.pdf 99.5.24
CERAFIL® is the Registered Trademark
of Murata Manufacturing Co., Ltd.
CERAMIC FILTER
Series Application/Notice
-
-
SF /PF /BF
"Portable Radio (SFU455B)
IS2236
0.022µF
100k
CSB
456F16
FM
+
ST
L3
L1
L2
T1
4.7µ
-
AM
10µF
+
L
MO
+
+
-
-
15p
FM
OSC
+
-
-
FM
PF
R
AM
OSC
DEF
OUT
OUT Vcc1
LPF1 LPF2
VCO
MPX
IN
OUT
L
OUT
R
AM
PF IN
4.7µ
24
23
22
21
20
19
AF
18
17
16
15
14
ST
13
PRE
Phase
COM
Phase
COM
FM
AM
TA8122AN (TOSHIBA)
VCO
DECODER
OSC OSC
Freq
Divider
AM
MIX
AM/FM
AM
RF
AM
DET
HYS
SW
MONO SW
AM
MIX
AM
AGC
AM
IF
L
FM
DET
TUN
LED
ST
LED
FM
RF
FM
IF
DET
1
2
3
4
5
6
7
8
9
10
TUN
LED
11
12
FM
RF IN
FM
MIX
AM
MIX
AM
AGC
AM
IF IN
FM
IF IN
GND1
Vcc2
ST
LED
GND2
QUAD
+
BPF
0.033µ
-
T2
Vcc
(3V)
10µH
+
SFU455B SFE10.7MA5Z2
CDA
10.7MG16
-
!NOTICE
"Matching condition should be evaluated to perform stable
electrical characteristics which are specified.
"In case of covering filter with over coat, conditions, such
as material of resin, cure temperature and so on should
be evaluated well.
"Washing of filter is not acceptable due to unsealed
construction.
"Filter might be damaged when an excess stress was
applied.
13
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