SAW Components
Data Sheet R 2707
SAW Components
Resonator
Data Sheet
R 2707
303,825 MHz
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
6
7
3
4,8
Input / Ouptput
Output / Input
Ground (Input / Output)
Ground (Output / Input)
Ground (case)
Type
R2707
Ordering code
B39301-R2707-U310
Marking and Package
according to
C61157-A7-A56
Packing
according to
F61074-V8070-Z000
Electrostatic Sensitive Device
(ESD)
Maximum ratings
Operable temperature range
Storage temperature range
DC voltage
Source power
T
A
T
stg
V
DC
P
s
–45/+85
–45/+85
12
0
˚C
˚C
V
dBm
between any terminals
2
May 09, 2001
SAW Components
Resonator
Data Sheet
Characteristics
Reference temperature:
Terminating Source impedance:
Terminating Load impedance:
R 2707
303,825 MHz
T
A
= 25 ˚C
Z
S
= 50
Ω
Z
L
= 50
Ω
min.
typ.
max.
MHz
Center frequency
(center frequency between 3 dB points)
Minimum insertion attenuation
Phase at f
c
Loaded quality factor
Unloaded quality factor
Ageing of f
c
Equivalent circuit elements
Motional capacitance
Motional inductance
Motional resistance
Input / Output capacitance
Temperature coefficient of frequency
1)
Turnover temperature
1)
Temperature
f
c
303,750
303,825 303,900
α
min
ϕ
Q
L
Q
U
—
—
4000
6500
—
8,5
150
6700
10000
—
0,307
894
160
2,4
–0,03
—
10
—
—
—
±
50
—
—
—
—
—
40
dB
˚ el.
ppm
fF
µH
Ω
pF
ppm/K
2
˚C
C
1
L
1
R
1
C
0
—
—
—
—
—
10
TC
f
T
0
dependence of
f
c
:
f
c
(T
A
) =
f
c
(T
0
)(1 +
TC
f
(T
A
–
T
0
)
2
)
3
May 09, 2001
SAW Components
Resonator
Data Sheet
R 2707
303,825 MHz
Published by EPCOS AG
Surface Acoustic Wave Components Division, SAW CE AE PD
P.O. Box 80 17 09, D-81617 München
©
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.
4
May 09, 2001
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