Part Number 856234
183.6 MHz SAW Filter
Data Sheet
Electrical Specifications (1)
Operating Temperature Range: (2)
-30 to +85 oC
Parameter (3)
Minimum
Typical
Maximum
Unit
Center Frequency, f0
-
183.6
-
MHz
Insertion Loss at 183.6 MHz
Excluding losses due to matching
-
7.4
9.2
11.6
182.970
-
dB
dB
Including losses in matching test circuit shown below
-
9.8
Lower 5 dB Point
Upper 5 dB Point
Amplitude Variation
183.3 - 183.9 MHz
RMS Phase Variation
182.97 - 184.23 MHz
Attenuation (4)
-
182.893
184.311
MHz
MHz
184.230
-
-
0.4
1.6
1.25
3.2
dB p-p
deg RMS
f0 - 2.05 MHz
33
33
33
33
33
33
33
33
45
40
40
38
40
36
40
40
-
-
-
-
-
-
-
-
dB
dB
dB
dB
dB
dB
dB
dB
f0 - 1.70 MHz
f0 - 1.25 MHz
f0 - 0.90 MHz
f0 + 0.90 MHz
f0 + 1.25 MHz
f0 + 1.70 MHz
f0 + 2.05 MHz
Rejection (4)
10.0 - 171.6 MHz
171.6 - 174.6 MHz
174.6 - 182.7 MHz
184.5 - 192.6 MHz
192.6 - 195.6 MHz
195.6 - 367.2 MHz
Optimal Source Impedance (5)
Optimal Load Impedance (5)
45
38
33
33
38
45
-
60
50
38
36
48
50
-
-
-
-
-
-
-
-
dB
dB
dB
dB
dB
dB
Ω
800Ω||49nH
380Ω||39.5nH
-
Ω
Notes:
1. All specifications are based on the test circuit shown below
2. In production, devices will be tested at room temperature to a guardbanded specification to ensure electrical compliance over
temperature
3. Electrical margin has been built into the design to account for the variations due to manufacturing tolerances
4. Relative to insertion loss at 183.6 MHz
5. This is the complex conjugate of the unmatched filter’s impedance resulting in maximum power transfer
Test Circuit:
Actual matching values may vary due to PCB layout and parasitics
47pF
120pF
120pF
4
5
9
1000Ω
Single-ended
input
500Ω
Balanced
output
47nH
0.5pF
43nH
500Ω
1000Ω
1,2,3
6,7,8,10
Subject to change or obsolescence without notice
Rev B
04-Mar-2003
Page 2 of 5
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