60
20
!Note • Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
CERAFILr (Filters/Traps/Discriminators) for Audio/Visual Equipment
CERAFILr 455kHz SFPLA/CFWLA Series
■ Features
SFPLA/CFWLA series for AM use is one of the most
recommendable intermediate filters, having such
distinctive features as high selectivity, high
stability, high attenuation, and adjustment-free
operation. Additionally its easy matching with IC
helps create an easy circuit design.
This is the most recommendable for car-stereo and
all band radio with high attenuation.
3.0
±
0.3
7.0±0.3
4.2±0.3
7.3±0.3
0.8±0.1
0.6±0.1
1.2±0.5
8.0±0.3
MARKING
EIAJ
CODE
3.3±0.5
2.7
±
0.3
(1)(2)
(3)
0.3±0.1
1.5max.
0.15±0.05
Connection
(1) : Input
(2) : Ground
(3) : Output
(in mm)
SFPLA Series
4.3±0.3
0.15
1.5max.
2.3±0.5 2.0±0.3
2.9±0.3
11.0±0.5
MARKING
EIAJ
CODE
1.2±0.5
(1)(2)
(4) (3)
(5)
1.35±0.5
7.0±0.5
3.5±0.5
0.6±0.1
0.8±0.1
7.5±0.5
2.6±0.3
Connection
(1) : Input
(2)(3)(4) : Ground
(5) : Output
(in mm)
2.92.9——0.30.3
2.9±0.3
CFWLA Series
Part Number Center
Frequency (fo)
(kHz)
6dB
Bandwidth
(kHz)
Selectivity (+)
(dB) Selectivity (-)
(dB) Insertion Loss
(dB)
Input/Output
Impedance
(ohm) Element
SFPLA450KJ1A-B0 450 ±1.0kHz fn±2.0 min. 40 min.[fn+7.5kHz] 40 min.[fn-7.5kHz] 6.0 max. 2000 4
SFPLA450KH1A-B0 450 ±1.0kHz fn±3.0 min. 40 min.[fn+9kHz] 40 min.[fn-9kHz] 6.0 max. 2000 4
CFWLA450KJFA-B0 450 (fn) fn±2.0 min. 50 min.[fn+7.5kHz] 50 min.[fn-7.5kHz] 7.0 max. 2000 6
CFWLA450KHFA-B0 450 (fn) fn±3.0 min. 50 min.[fn+9kHz] 50 min.[fn-9kHz] 6.0 max. 2000 6
Insertion Loss: at minimum loss point
Center frequency (fo) is defined by the center of 6dB bandwidth.
(fn) means nominal center frequency (450kHz).
For safety purposes, connect the output of filters to the IF amplifier through a D.C. blocking capacitor. Avoid applying a direct current to the output of ceramic filters.
The order quantity should be an integral multiple of the "Minimum Quantity" shown in the package page.
■ Recommended IFT (7x7)
(1)
(2)
S(3) (4)S
(6)
Type
Item
Winding Specification
No load Qu
Tuning Capacitance
40
180pF
SFPLA/CFULA/CFWLA
(1)—(2) (2)—(3) (4)—(6)
60T 125T 28T
(Bottom view)
• Matching of CERAFILrSFPLA/CFULA/CFWLA series with IFT is decided
by the Qu of IFT and 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 match the impedance of |Z2|
with that of the CERAFILr.
■ Test Circuit
Input Output
R1
Rg
SSG
Ground
R2 RF
Voltmeter
Rg+R1 =R2 : Input/Output Impedance
Continued on the following page.
Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this PDF catalog to prevent smoking and/or burning, etc.
This catalog has only typical specifications. Therefore, you are requested to approve our product specifications or to transact the approval sheet for product specificaions before ordering.
!Note P50E.pdf 03.4.16
61
20
!Note • Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
Continued from the preceding page.
■ Frequency Characteristics
IFT+SFPLA450KH1A-B0
0
10
20
30
40
50
60
70
Attenuation (dB)
430 440 450 460 470
Frequency (kHz)
IFT+CFWLA450KHFA-B0
70
60
50
40
30
20
10
0
430 440 450 460 470
Frequency (kHz)
Attennation (dB)
■ Frequency Characteristics (Spurious)
IFT+SFPLA450KH1A-B0
70
60
80
50
40
30
20
10
0
012345678910
Frequency (kHz)
Attennation (dB)
IFT+CFWLA450KHFA-B0
70
60
80
50
40
30
20
10
0
012345678910
Frequency (kHz)
Attennation (dB)
Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this PDF catalog to prevent smoking and/or burning, etc.
This catalog has only typical specifications. Therefore, you are requested to approve our product specifications or to transact the approval sheet for product specificaions before ordering.
!Note P50E.pdf 03.4.16
