Data Sheet
Part Number 855653
374 MHz SAW Filter
Electrical Specifications
(1)
Operating Temperature Range:
(2)
-40 to +85
o
C
Parameter
(3)
Minimum Typical Maximum Unit
Center Frequency
- 374 - MHz
Insertion Loss
- 8.5 11 dB
Lower 3 dB Bandedge
Upper 3 dB Bandedge
-
382.5
362
386
365.5
-
MHz
MHz
Absolute Attenuation
274 - 341 MHz
341 - 352 MHz
352 - 357.5 MHz
390.5 - 396 MHz
396 - 430 MHz
430 - 474 MHz
50
40
10
10
30
45
55
60
50
37
45
50
-
-
-
-
-
-
dB
dB
dB
dB
dB
dB
Passband Ripple
- 0.6 1 dB p-p
Group Delay Ripple
- 60 100 nsec p-p
Triple Transit Suppression
30 40.5 - dB
Source Impedance
(4)
- 50 -
Ω
Load Impedance
(4)
- 50 -
Ω
Substrate Material
- YZ LiNbO
3
- -
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 temperature drift and manufacturing tolerances
4. This is the optimum impedance in order to achieve the performance shown
5. Sawtek’s production specifications reflect the typical performance in a 50 ohm single-ended system. This filter can be used in both
single-ended and/or differential modes at each port. In addition, similar performance can be achieved in source and load
impedances ranging from 50 to 500 ohms.
Test Circuit:
Actual matching values may vary due to PCB layout and parasitics
50 Ω
Single-ended
1,2,4,5,6,7
8,10,11,12
50
Ω
12pF
22nH
15pF
93
50
Ω
Subject to change or obsolescence without notice Rev A 08-Oct-2002 Page 2 of 5
