Data Sheet
Operating Temperature Range:
(2)
+25
o
C
Part Number 856409
1842.5 MHz SAW Filter
Electrical Specifications
(1)
Parameter
(3)
Center Frequency
Maximum Insertion Loss
1805 - 1880 MHz
Absolute Attenuation
100 - 1200 MHz
1200 - 1705 MHz
1705 - 1764 MHz
1764 - 1785 MHz
1920 - 1980 MHz
1980 - 3000 MHz
3000 - 5415 MHz
5415 - 5640 MHz
5640 - 6000 MHz
Output Amplitude Balance (|S
31
/S
21
|)
1805 - 1880 MHz
Output Phase Balance [Φ(S
31
)-ΦS
21
+180]
1805 - 1880 MHz
Input/Output VSWR
1805 - 1880 MHz
Source Impedance
(4)
Load Impedance (Balanced)
(4)
Notes:
1.
2.
3.
4.
Minimum
-
-
25
25
20
9
15
20
20
41
38
-1.5
-10
-
-
-
Typical
1842.5
1.5
38
33
25
12
18
26
42
45
42
1.3
2
2.0
50
200||18nH
Maximum
-
2.0
-
-
-
-
-
-
-
-
-
1.5
10
2.5
-
-
Unit
MHz
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
degree
Ω
Ω
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
This is the optimum impedance in order to achieve the performance shown
Test Circuit:
2
4
18nH
50Ω
1,3,5
6
200
Ω
50
Ω
Single-ended
Input
200
Ω
Balanced
Output
Subject to change or obsolescence without notice
Rev D
08-Dec-2004
Page 2 of 7
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