16
ABLSOLUTE MAXIMUM RATINGS:
LEADED, TO -39 PACKAGE, ONE-PORT
SAW RESONATORS
ASR315
Center frequency
Fr MHz 314.925 315.000 315.075
Tolerance from 315
MHz
f
C
kHz
-
75 -
Insertion loss
IL dB - 1.5 2.2
Unloaded quality factor Q
U
- - 12.500 -
Loaded quality factor 50
Q
L
- - 2,000
-
Aging absolute first year [A]
ppm - - 10
DC insulation resistance
M
1.0 - -
Shunt capacitance
Co pF -
2.0
-
Motional resistance
R1
-
19 29
Motional inductance
L1
H
- 120.311 -
Motional capacitance C1 fF - 2.1240 -
Turnover temperature To
C
25 40
55
Temperature coefficient T
C
ppm/C
2
-
0.037
-
CHARACTERISTICS UNIT
min. typ. max.
STANDARD SPECIFICATIONS
STANDARD SPECIFICATIONS
Reliability specifications, see SAW application notes.
Equivalent circuit:
Test circuit:
Pin No.
Function
1 Input/Output
2 Output/Input
3 Case GND
Dimensions: Inches (mm)
9.8 x 9.8 x 3.6 mm
Marking:
ASR
315
FEATURES:
One-port SAW resonator 315 MHz. Fundamental mode.
Wide operating temperature range.
0.3660.008
(9.300.20)
0.140.008
(3.400.20)
0.12 min.
(3.0)
0.0180.008
(0.450.20)
0.1
(2.54)
0.2
(5.08)
Rm
Lm
Cm
0.5pF*
Cp
From 50 ohms
source
0.5pF*
To 50 ohms
load
2
1
Co=Cp+0.25pF*
-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
CH1
1
1:Transmission /M Log Mag 5.0 dB/ Ref -1.50 dB
2: Off
DC voltage 30 Vdc
Operating temperature -40C to +85C
Maximum power dissipation 10dBm
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
S16
Center 315.000MHz, Span 0.008 MHz
* Case Parasitics
CH1 MRK3 315.000MHz
-1.35 dB
COMMON APPLICATIONS:
Quartz frequency stabilization of fixed-frequency transmitters at 315.00 MHz.
Wireless car alarm, Garage door opener. (RKE)
Mobile communications systems
PDF 
ZIP