SAW Device
SAW Filter for RKE
n
Features
l
This is a low-loss filter.
l
Excellent out-of-band characteristics
For Industrial Use
Pb
Free
n
Specifications
Model
Item
Nominal frequency : f
0
(MHz)
Minimal insertion loss (IL)(dB)
3-dB passband width (kHz)
Amplitude deviation (dB)
314.84 to 315.16MHz
10 to 288MHz
288 to 307MHz
307 to 311MHz
311 to 314MHz
Guaranteed attenuation (dB)
316 to 321MHz
321 to 326MHz
326 to 338MHz
338 to 600MHz
600 to 1000MHz
Operating temperature range (°C)
Terminating impedance (Ω)
min.
–
–
–
–
53
40
27
10
8
20
40
48
50
–40
WF866B0315CH
typ.
315
3.5
600
1.3
58
50
35
15
15
30
50
54
55
–
510//–3.7pF
max.
–
5.0
–
2.5
–
–
–
–
–
–
–
–
–
+105
n
Dimensions
mm
3.8±0.2
7
6
5
PAD NO.
Others
3.8±0.2
1
5
CONNECTION
GND
INPUT
OUTPUT
n
Characteristics
CH1 A/R LOG MAG
REF –2.840 dB
10.000 dB/
8
4
1
2
3
1.3max
Reference land pattern
4.2
1
2
3
6–0.9
1.9
1.9
1.4
CH1
CENTER(MHz) 315.0000
SPAN(MHz) 50.000
1.4
1.8
0.8
n
Matching Circuit
4.2
62nH
IN
1
5
62nH
OUT
SAW
50Ω
11pF
2 3 4 6 7 8
11pF
50Ω
8
4
0.1
7
6
1.27
5
0.8
0.8
0.8
1.25
8–0.6
1.4
1.25
sa09_071102_WF866B0315CH_e1
NDK [ NIHON DEMPA KOGYO ]
