Preliminary Data Sheet
Operating Temperature Range:
(2)
-10 to +80
o
C
Part Number 856278
374 MHz SAW Filter
Electrical Specifications
(1)
Parameter
(3)
Center Frequency, f
0
Maximum Insertion Loss
367 - 381 MHz
Lower 3 dB Bandedge
Upper 3 dB Bandedge
Stop Band Rejection
(4)
274 - 331 MHz
331 - 352 MHz
352 - 357.5 MHz
390.5 - 396 MHz
396 - 404 MHz
404 - 417 MHz
417 - 474 MHz
Amplitude Variation
(5)
367 - 381 MHz
Group Delay Variation
(5)
367 - 381 MHz
Triple Transit Suppression
Source Impedance
(6)
Load Impedance
(6)
Notes:
1.
2.
3.
4.
5.
6.
All specifications are based on the test circuit shown below
In production, devices will be tested at room temperature to a guardbanded specification to ensure electrical compliance over
temperature
Electrical margin has been built into the design to account for the variations due to temperature drift and manufacturing tolerances
All attenuation measured over the defined frequency range and referenced to minimum insertion loss
Total variation over the defined range
This is the optimum impedance in order to achieve the performance shown
Minimum
-
-
-
382.5
45
40
30
30
35
40
40
-
30
-
-
Typical
374
9
363.5
384.5
50
45
35
35
41
45
45
0.75
40
40
200
200
Maximum
-
10
365.5
-
-
-
-
-
-
-
-
1.0
100
-
-
-
Unit
MHz
dB
MHz
MHz
dB
dB
dB
dB
dB
dB
dB
dB
nsec
dB
Ω
Ω
Test Circuit:
Actual matching values may vary due to PCB layout and parasitics
18pF
2
6
15nH
3
18pF
1,4,5,8
7
22pf
200Ω
22pf
200Ω
Balanced
200Ω
27nH
Subject to change or obsolescence without notice
Rev A
15-Aug-2003
Page 2 of 5
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