HDF204MS21 Datasheet, PDF (3/10 Pages) Shoulder Electronics Limited. – This specification shall cover the characteristics of SAW filter With 204M used for IF

SAW FILTER
HDF204M SMD-21
1. SCOPE
This specification shall cover the characteristics of SAW filter With 204M used for IF
applications.
2. ELECTRICAL SPECIFICATION
DC Voltage VDC
AC Voltage Vpp
Operation temperature
Storage temperature
RF Power Dissipation
10V
10V50Hz/60Hz
-40℃ to +85℃
-45℃ to +85℃
0dBm
2.1Electrical characteristics
Parameter
Minimum Typical Maximum Unit
Center Frequency,Fo
Insertion loss at 204 MHz
Including losses in matching test
circuit show below
1 dB Lower Frequency
1 dB Upper frequency
Amplitude Variation
203.7~204.3 MHz
Group delay variation
203.7~204.3 MHz
Rejection⁽⁴⁾
194~200 MHz
200~201.5 MHz
201.5~202 MHz
206.0~206.5 MHz
206.5~209 MHz
209~214 MHz
Optimal source Impedance⁽⁵⁾
Optimal Load Impedance⁽⁵⁾
204.3
26
36
36
35
35
38
38
204
10.5
203.56
204.43
12.0
203.8
0.6
1.2
170
38
38
38
35
43.5
46.4
8ohm//99nH
8ohm//99nH
MHz
dB
MHz
dB
nsec.
dB
ohm
ohm
Temperature coefficient of frequency
+1.7
ppm/K
Notes:
1.All specifications are based on the test circuit shown below
2. This specification is valid for room temperature only
3.Electrical margin has been built into the design to account for the variations due to manufacturing tolerances
4.Relative to insertion loss at 204 MHz
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