220.380 MHz Bandpass Filter
1.260 MHz Bandwidth
Preliminary Specifications
Typical Performance
8
0
-8
-16
-24
-32
-40
-48
-56
-64
-72
216.38
217.18
217.98
Part Number 855693
218.78
219.58
220.38
221.18
221.98
222.78
223.58
224.38
Horizontal: 800 kHz/Div
Vertical: 8 dB/Div
Horizontal: 200 kHz/Div
Vertical: 1 dB/Div
Input
Output
50Ω
Horizontal: 7.5 MHz / Div
Vertical: 10 dB /Div
50Ω
Specifications
Parameter
Center Frequency, f
o
Insertion Loss
5 dB Lower Frequency
5 dB Upper Frequency
33 dB Lower Frequency
33 dB Upper Frequency
Attenuation at 219.13 MHz (Specified at 25°C)
Attenuation at 221.63MHz (Specified at 25°C)
Attenuation at 218.33 MHz
Attenuation at 222.43 MHz
Amplitude Variation over the f
o
±
.300 MHz
Phase Ripple over the f
o
±
.615 MHz
Ultimate Rejection
Substrate Material
Operating Temperature Range
Sawtek Inc.
Unit
MHz
dB
MHz
MHz
MHz
MHz
dB
dB
dB
dB
dB p-p
deg rms
dB
-
°C
Minimum
-
-
-
221.01
219.13
-
35
35
-
-
-
-
-
-
-30
Typical
220.38
7.2
219.64
221.2
219.29
221.55
44
42
48
48
0.5
2.1
50
Quartz
25
Maximum
-
9
219.75
-
-
221.63
-
-
1.2
3.5
-
-
80
Telephone: (407) 886-8860
Fax: (407) 886-7061
8/25/99
Preliminary Specifications
(Cont.)
Notes
220.380 MHz
1.260 MHz
Bandpass Filter
Bandwidth
Part Number 855693
(1) 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 1000 ohms.
(2) The typical insertion loss may vary slightly depending on actual source and load impedances, matching configuration
and PC board layout.
(3) Inductors with
±2%
tolerance may be required.
(4) In production, devices will be tested at room temperature to a guardbanded specification to ensure electrical
compliance over temperature.
Matching Configurations
50Ω Single-ended
50Ω Single-ended / 500Ω Balanced
TBD
L1 = 12 nH, L2 = 27nH, L3 = 30 nH, L4 = 12 nH
Package Outline
SMP-28B
Dimensions shown are in
millimeters (inches).
Sawtek Inc.
Telephone: (407) 886-8860
Fax: (407) 886-7061
8/25/99
京公网安备 11010802033920号
EEWORLD
