ABLSOLUTE MAXIMUM RATINGS:
CERAMIC SURFACE-MOUNT, ONE-PORT
SAW RESONATORS
ASR315S2
Marking:
ASR
315S2
FEATURES:
SAW resonator 315.0 MHz, Fundamental mode.
Small ceramic surface-mount.
SMD makes reflow soldering possible.
Gold plated terminals.
CHARACTERISTICS UNIT
min. typ. max.
STANDARD SPECIFICATIONS
STANDARD SPECIFICATIONS
Center frequency
Fc MHz 314.925 315.000 315.075
Tolerance from 315
MHz
f
C
kHz
- 75 -
Insertion loss
IL dB - 1.5 2.0
Unloaded quality factor Q
U
- - 13,900 -
Loaded quality factor 50
Q
L
- - 2,100 -
Shunt capacitance
Co pF - 2.6 -
Motional resistance
R1
- 19 29
Motional inductance
L1
H
- 96.199 -
Motional capacitance C1 fF - 2.8392 -
Turn-over temperature To
C
25 40 55
Temperature coefficient Tc
ppm/
C
2
-
0.032
-
Aging absolute first year [A]
ppm
- - 10
DC insulation resistance
M
1.0 - -
DC voltage 30Vdc
Operating temperature -40C to +85C
Maximum power dissipation 10dBm
Equivalent circuit:
Test circuit:
Pin No.
Function
1 Input/Output
2 Output/Input
3 & 4 Case GND
Dimensions: Inches (mm)
29 Journey Aliso Viejo, CA 92656 USA
(949) 448-7070 F
AX
: (949) 448-8484
E-
MAIL
:
abinfo
@
abracon.com
I
NTERNET
A
DDRESS
:
www.abracon.com
NOTE: All specifications and markings subject to change without notice
ABRACON
C O R P O R A T I O N
ABRACON IS
ISO 9001 / QS 9000
CERTIFIED
-200
-150
-100
-50
0
-200
-150
-100
-50
0
-80 -60 -40 -20 0 +20 +40 +60 +80
fc=fo, Tc=To
T=Tc -To(
o
C)
Typical Frequency Response
Temperature Characteristics
S11
CH1
1
1:Transmission /M Log Mag 5.0 dB/ Ref -2.0 dB
2: Off
Center 315.000 MHz Span 0.75 MHz
Packaging option: -T for tape and reel, see appendix H.
Reflow profile, see appendix E. Reliability specifications,
Enviromental and mechanical specifcations, see page 91 in the Abracon Catalog
0.25
(6.3)
0.11
(2.9)
0.17
(4.44)
0.19
(4.8)
0.08
MAX
(2.0)
0.08
(2.08)
0.047
(1.2)
0.043
MAX
(1.1)
0.06
MAX
(1.53)
1
2
4
3
To 50
Load
To 50
Load
1
2
4
3
Rm
Lm
Cm
Cp
0.05pF
-37
-32
-27
-22
-17
-12
-7
-2
6.3 x 4.4 x 2.08mm
CH1 MRK1 314.981 MHz
-1.12 dB
1
2
dB
COMMON APPLICATIONS:
Quartz frequency stabilization of fixed-frequency transmitters at 315.0 MHz.
Wireless car alarm, Garage door opener. (RKE)
Mobile communications systems
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