SAW Components
Data Sheet R 2706
2
May 09, 2001
SAW Components
R 2706
915,00 MHz
Resonator
Data Sheet
SMD Ceramic package QCC8C
Features
s
2-port resonator
s
nominal 180-phase at resonance
s
Provides reliable, fundamental mode, quartz fre-
quency stabilization i.e. in transmitters or local
oscillators
Terminals
s
Ni, gold plated
Dimensions in mm, approx. weight 0,1 g
Pin configuration
2
Input / Ouptput
6
Output / Input
7
Ground (Input / Output)
3
Ground (Output / Input)
4,8
Ground (case)
Electrostatic Sensitive Device (ESD)
Type
Ordering code
Marking and Package
according to
Packing
according to
R2706
B39921-R2706-U310
C61157-A7-A56
F61074-V8070-Z000
Maximum ratings
Operable temperature range
T
A
45/+85
C
Storage temperature range
T
stg
45/+85
C
DC voltage
V
DC
0
V
between any terminals
Source power
P
s
0
dBm
3
May 09, 2001
SAW Components
R 2706
915,00 MHz
Resonator
Data Sheet
Characteristics
Reference temperature:
T
A
= 25 C
Terminating Source impedance:
Z
S
= 50
Terminating Load impedance:
Z
L
= 50
1)
Temperature dependence of
f
c
:
f
c
(
T
A
) =
f
c
(
T
0
)(1 +
TC
f
(
T
A
T
0
)
2
)
min.
typ.
max.
Center frequency
f
c
914,65
915,00
915,35
MHz
(center frequency between 3 dB points)
Minimum insertion attenuation
min
--
7,0
9,0
dB
Phase at f
c
--
130
--
el.
Loaded quality factor
Q
L
3500
4300
--
Unloaded quality factor
Q
U
6000
7600
--
Ageing of f
c
--
--
50
ppm
Equivalent circuit elements
Motional capacitance
C
1
--
0,225
--
fF
Motional inductance
L
1
--
134,5
--
H
Motional resistance
R
1
--
100
--
Input / Output capacitance
C
0
--
1,9
--
pF
Temperature coefficient of frequency
1)
TC
f
--
0,03
--
ppm/K
2
Turnover temperature
T
0
0
--
30
C
4
May 09, 2001
SAW Components
R 2706
915,00 MHz
Resonator
Data Sheet
Published by EPCOS AG
Surface Acoustic Wave Components Division, SAW CE AE PD
P.O. Box 80 17 09, D-81617 Mnchen
EPCOS AG 2001. All Rights Reserved.
As far as patents or other rights of third parties are concerned, liability is only assumed for compo-
nents per se, not for applications, processes and circuits implemented within components or
assemblies.
The information describes the type of component and shall not be considered as assured
characteristics.
Terms of delivery and rights to change design reserved.
For questions on technology, prices and delivery please contact the sales offices of EPCOS AG or
the international representatives.
Due to technical requirements components may contain dangerous substances. For information on
the type in question please also contact one of our sales offices.
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