FUJITSU MEDIA DEVICES
APPLICATION
ELECTRICAL CHARACTERISTICS
SAW RESONATOR
SRU315RAEC1-TB12R
OSCILLATOR FOR THE KEYLESS ENTRY SYSTEM
TRANSMITTER.
* The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by
Fujitsu Media Devices for any infringements of patents or other rights of the third parties which may result from its use. No license is granted by
implication or otherwise under any patent or patent rights of Fujitsu Media Devices or others.
* The information contained herein may be changed without prior notice. It is therefore advisable to contact Fujitsu Media Devices before proceeding
with the design of equipment incorporating this product.
No.SRU315RAEC1-TB12 2002-04-01
FREQUENCY CHARACTERISTICS
PACKAGE DIMENSION
1.33 1.27 0.40
T
#3
#6
#2
#1
#12 #11 #10
#7
#8
#9
4.80
Type Name
Lot. No.
#4 #5
#3
#6
#2
#1
#12 #11 #10
#7
#8
#9
#4 #5
Unit : mm
No.
1
2
3~7
8
9~12
Functions
Ground
I / O
Ground
I / O
Ground
It is necessary to ground any terminal
without Pin No. 2 and 8.
0.70
0.60
1.50 0.80
1.45
5.20
(Ta = 25°C unless otherwise noted)
fr
Ar
CTE
Typ.
315.0
1.0
3.5
-
Min.
314.9
-
2.5
-40
Max.
315.1
2.5
4.5
+10
Unit
MHz
dB
pF
kHz
Item
Resonant frequency
Resonant loss
Parallel capacitance
Temp. frequency drift
(Ta=-20~+60°C)
FREQUENCY ( MHz )
315.0314.6 314.8 315.2 315.4
(5dB/div)
FEATURES ABSOLUTE MAXIMUM RATINGS (Ta=25°C)
PACKING
MEASURMENT CIRCUIT
FUJITSU MEDIA DEVICES LTD.
o
/ 180
o
/ 80
12.4
3.1 0.9 2.2
1.27
0.7 4.4 0.7
1.27 0.6
#3
#4 #5 #6
#2
#1
#12 #11 #10
#7
#8
#9
(1) ~ (12) is as the terminal number of SAW filter.
(2) and (8) are for hot line.
Other terminals are for ground.
1) 50 ohm Source and load system. (RF Filter)
2) Low insertion loss.
3) Surface mount IR reflowable package.
4) Packing in emboss tape.
5) High driving power 0.1 W max. (RF Filter)
Embossed carrier dimensions The pattern example of PC board for SAW filter
Item
DC voltage
Driving power
Operating temp.
Storage temp.
Electrode Ratings
0 V
0.2mW
-20 ~ +60°C
-55 ~ +85°C
Notes
Between any
two electrodes
Between input
and ground
(Ta = 25°C unless otherwise noted)
50Ω
50Ω
28
It is necessary to ground
any terminal without
Pin No. 2 and 8.
1.9
o
/ 13.0
o
/ 21
R1.0
1 2
8
User direction of feed Output
Input
1 pin
5.0
C-D
unit : mm
(4.75) 5.5 1.75
5.4
1.9
8.0
o
/ 1.55
o
/ 1.55 4.0 2.0 A
0.3
D
12.0
B
C
A-B
