CDBC450C54
Ceramic Discriminator
1. APPLICATION
This specification is applied to ceramic discriminator :
CDBC450C
54
used for quadrature detection with IC : TA31142F (TOSHIBA )
2. SPECIFICATION No.: QJ/A5•25•0512
MODEL NAME
Part Name
CDBC450C54
3. DIMENSIONS : ( mm )
Customer’s Part No.
Customer’s Draving No.
Material
Case
Terminal
Base Sealing
List
Polybutenetelephthalate
(mixture of glass fiber)
Phosphor bronze Ag Clad
Epoxy
resin
4.
MAXIMUM RATINGS
4.1
Withstanding Voltage
(Between each terminal)
4.2 Insulation Resistance
(Between each terminal)
4.3 Input signal level
4.4 Operating Temperature Range
4.5 Storage Temperature Range
:
:
:
:
:
D.C. 5OV. 1 minute
100 MΩ min. at D.C. 100V
5dB (50Ω Termination )
- 20℃ to + 80
℃
-40℃ to +85
℃
SHENZHEN LUGUANG ELECTRONIC TECHNOLOGY CO.,LTD.
CDBC450C54
Ceramic Discriminator
5. ELECTRICAL CHARACTERISTICS
Item
5-1
5-2
5-3
5-4
5-5
( 0℃ to + 40
℃
)
Requirements
±4.0
KHz min.
40
±
20 mV
3.0% max.
50V D.C. for 1 minute
Receiver Audio 3dB Bandwitdth (from 450KHz)
Receiver Audio Output Voltage (at 450KHz)
Distortion (at 450 KHz)
Withstanding Voltage
Test Method
Input signal Condition Input level
: 80dB
Frequency Deviation :
±4.0KHz
Modulation Frequency : 1 KHz
1) Recoverd Audio
Input the above signal and sweep the carrier frequency
3dB Bandwidth
around 450 KHz and find out the maximum audio
output frequency. Then sweep the carrier frequency
again and find two frequencies which are observed
-3dB attenuation points from the maximum point .
Higher frequency point is called (f1) and lower called
(f2), (f1-455KHz)is defined as upper 3dB bandwidth
and (455Khz-f2) defined as lower 3 dB bandwidth.
2)
Receiver Audio
Output Voltage
Receiver audio output voltage shall be measured
when carrier frequency is adjusted to 450KHz.
Carrier frequency is adjusted to 450Khz. And
then ,distortion shall be measured with 1 kHz
modulation frequency.
3) Distortion
6. PRYSICAL AND ENVIRONMENTAL CHARACTERISTICS
Test Item
6-1
Lead Strength
Lead Pulling
Lead Bending
Condition of Test
Requirements
After force 1.0Kg is applied to each lead in axial
direction. filter shall be measured.
No mechanical damage
When force of 0.5Kg is applied to each lead in axial and the measured values
shall meet item 5.
。
direction the lead shall be folded up to 90
from the
axial direction and folded back to the axial direction .
Filter shall be measured after being applied vibration of
6-2
Vibration
SHENZHEN LUGUANG ELECTRONIC TECHNOLOGY CO.,LTD.
CDBC450C54
Ceramic Discriminator
amplitude of 1.5mm with 600 to 3,300 r.p.m. band of
vibration frequency to each of 3 perpendicular
directions for 2 hour .
6-3
6-4
6-5
Random Drop
Filter shall be measured after 3 times random dropping
from the height of 30cm on concrete floor
-20
℃
to +80
℃
Temperature Filter shall be measured within
Characteristics temperature range.
Humidity
Filter shall be measured after being placed in a chamber
with 90 to 95% R. H. at 40±2℃ for 100 hours and
then being placed in natural condition for 2 hour.
Lead terminals are immersed up to 1.5mm from filter’s
body in soldering bath of 260±5℃ for 5±0.5 seconds
and then filter shall be measured after being placed in
natural condition for 2 hour.
The measured values
shall meet Table 1.
6-6
Resistance to
Soldering Heat
6-7 Life Test（High Filter shall be measured after being placed in chamber
Temperature） with 80℃ for 100 hours and then being placed in
natural condition for 2 hour.
6-8
Life Test
Filter shall be measured after being placed in a chamber
（Low
with -20℃ for 100 hours and then being placed in
Temperature） natural condition for 2 hours.
Thermal Shock After temperature cycling of -20℃
（30
minutes） +80
to
℃（30
minutes）was performed 5 times. Filter shall be
returned to room temperature. And filter shall be
measured after being placed in natural condition for 2
hours.
6-9
Item
Receiver Audio 3dB Bandwidth
(from 450KHz)
Receiver Audio Output Voltage
(at 450KHz)
Distortion
( at 450KHz)
Withstanding Voltage
Table 1.
Requrements
±4.0
KHz min.
40±20 mV
4.0 % max.
50V D. C. for 1 minute.
SHENZHEN LUGUANG ELECTRONIC TECHNOLOGY CO.,LTD.
京公网安备 11010802033920号
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