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141 MHz SAW Filter
1.05 MHz Bandwidth
Part Number SF0141CD11968S
TYPICAL PERFORMANCE
Horizontal: 1 MHz/div
Vertical (from top):
Magnitude
Magnitude
Group Delay Deviation
10
1
200
dB/div
dB/div
ns/div
SPECIFICATION
Parameter
Center Frequency, Fc 1
Passband Width 2
Insertion Loss at Fc
3.75 dB Bandwidth
40 dB Bandwidth
Stopband Rejection, 79.75 – 139.75 MHz & 142.25 MHz - 202.25 MHz
Amplitude Ripple 3
Group Delay Ripple 3
Return Loss at Input and Output 3 5
Phase Linearity 4
Absolute Delay
Source and Load Impedance
Operating Temperature Range
Min
1.18
40
8
2.34
Typ
141
1.05
11.8
1.43
2.29
45
0.8
125
12
0.6
2.39
50
0
Max
14
2.5
1.0
300
2.0
2.54
+85
Units
MHz
MHz
dB
MHz
MHz
dB
dB p-p
ns p-p
dB
deg rms
µs
Ω
°C
Notes:
1. Fixed reference. All specified bandwidths are centered at this frequency.
2. Defined bandwidth, centered at 141 MHz. Other parameters are specified over this bandwidth.
3. Over the passband.
4. Over 141 MHz +/- 630 kHz.
5. When matched using external components as described below.
Spectrum Microwave
400 Nickerson Road, Marlborough, MA 01752, USA • Phone 1-508-251-6400 • Fax 1-508-251-6401
www.SpectrumMicrowave.com
DSSF0141CD11968S
Rev A
11-Mar-2010
ECN 36650 Page 1 of 2
141 MHz SAW Filter
1.05 MHz Bandwidth
Part Number SF0141CD11968S
PACKAGE OUTLINE
Units:
mm
Pin Configuration:
Input:
1
Input Return: 10
Output:
6
Output Return: 5
Ground:
2, 3, 4, 7, 8, 9
MATCHING CIRCUIT
Ls1
Ls2
1
6
Cp1
Cp2
10
Typical component values:
(Minimum Q = 45)
Ls1 = 124 nH
Cp1 = 56 pF
5
Ls2 = 110 nH
Cp2 = 52 pF
Notes:
1. Component values shown are those used in the Spectrum Microwave test fixture. Values used in a
particular application may differ from this, depending on board layout.
2. 2% components or better are recommended in order to meet the return loss specification over the full
operating temperature range.
ISO 9001
Registered
All specifications are believed to be accurate and reliable. However, Spectrum Microwave reserves the right to make changes without notice.
© 2010 All rights reserved.
Spectrum Microwave
400 Nickerson Road, Marlborough, MA 01752, USA • Phone 1-508-251-6400 • Fax 1-508-251-6401
www.SpectrumMicrowave.com
DSSF0141CD11968S
Rev A
11-Mar-2010
ECN 36650 Page 2 of 2