NDK WF872G0140CB

SAW Device
SAW Filter for Radio Communication
For Industrial Use
n Features
l A low-loss filter.
l Excellent guaranteed attenuation.
l Surface-mount type.
Pb
Free
n Specifications
Model
WF872G0140CB
Item
min.
typ.
Nominal frequency : f0 (MHz)
−
140
−
Insertion loss at f0
−
10.4
13
1-dB passband width (MHz)
15
16.7
−
3-dB passband width (MHz)
16
17.6
−
40-dB passband width (In Band)(MHz)
−
21.4
22.0
Amplitude deviation (f0±6.4MHz)(dB)
−
0.6
0.9
Group delay time ripple (f0±6.4MHz)(ns)
−
78
140
−
+85
Passband width
(rel to f0)
Operating temperature range (°C)
−40
Terminating impedance (Ω)
50 (with matching)
n Dimensions
n Characteristics
mm
13.3
10
9
8
7
PAD NO.
6
12
GND
12
INPUT
6
OUTPUT
5
3
[In-band characteristics]
CH1 A/R LOG MAG
REF –10.440 dB
1.000 dB/
4
1.8
2
CONNECTION
Others
6.5
11
1
max.
3×2.54
2
3
0.1
1
Reference land pattern
5.05
1
4
CH1
CENTER(MHz) 140.0000
SPAN(MHz) 50.000
6
10
9
8
3.3
10.1
2.54
6.5
11
12−0.8
12
1.8
5
[Out-of-band characteristics]
7
12−1.40
CH1 A/R LOG MAG
REF –10.440dB
10.000 dB/
1.27
0.10
13.3
n Matching Circuit
L1
IN
12
6
L2
OUT
SAW
50Ω
C1
C2
50Ω
CH1
CENTER(MHz) 140.0000
SPAN(MHz) 100.000
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