SAW Components
Resonator
Data Sheet
R2712
804.50 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
s
Passivation layer: Protec
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
R2712
Ordering code
B39801-R2712-U310
Marking and Package
according to
C61157-A7-A56
Packing
according to
F61074-V8169-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
0
0
˚C
˚C
V
dBm
between any terminals
2
Oct 02, 2003
SAW Components
Resonator
Data Sheet
Characteristics
Reference temperature:
Terminating Source impedance:
Terminating Load impedance:
R2712
804.50 MHz
T
A
= 25 ˚C
Z
S
= 50
Ω
Z
L
= 50
Ω
min.
typ.
804.5
max.
804,75
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
804,25
α
min
ϕ
Q
L
Q
U
—
—
3000
6300
—
6,3
140
3700
7500
—
0,293
133,8
91
1,6
–0,03
—
8,3
—
—
—
dB
˚ el.
−10/+40
ppm
—
—
—
—
—
35
fF
µH
Ω
pF
ppm/K
2
˚C
C
1
L
1
R
1
C
0
—
—
—
—
—
15
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
Oct 02, 2003
SAW Components
Resonator
Data Sheet
R2712
804.50 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 2003. All Rights Reserved. Reproduction, publication and dissemination of this bro-
chure and the information contained therein without EPCOS’ prior express consent is prohibited.
The information contained in this brochure describes the type of component and shall not be con-
sidered as guaranteed characteristics. Purchase orders are subject to the General Conditions for
the Supply of Products and Services of the Electrical and Electronics Industry recommended by the
ZVEI (German Electrical and Electronic Manufacturers’ Association), unless otherwise agreed.
This brochure replaces the previous edition.
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
Oct 02, 2003