SAW Components
Data Sheet R 734
2Jul 26, 2002
SAW Components R 734
304,325 MHzResonator
Data Sheet
Ceramic package QCC8C
Features
■1-port resonator
■Provides reliable, fundamental mode, quartz fre-
quency stabilization i.e. in transmitters or local
oscillators
Terminals
■Ni, gold plated
Dimensions in mm, approx. weight 0,1 g
Pin configuration
2 Input
6 Output, grounded in 1-port conf.
4,8 Ground (case)
1,3 float
5,7 float / ground
Electrostatic Sensitive Device (ESD)
Type Ordering code Marking and Package
according to
Packing
according to
R 734 B39301-R 734-U310 C61157-A7-A56 F61074-V8070-Z000
Maximum ratings
Operable temperature range
T
A–45/+120 ˚C
Storage temperature range
T
stg –45/+120 ˚C
DC voltage
V
DC 12 V between any terminals
Source power
P
s0 dBm
3Jul 26, 2002
SAW Components R 734
304,325 MHzResonator
Data Sheet
Characteristics
Reference temperature:
T
A= 25 ˚C
Terminating source impedance:
Z
S= 50 Ω
Terminating Load impedance:
Z
L= 50 Ω
1) Center frequency is defined as maximum of the real part of the admittance
2) If used in two port configuration (pin 2-input, pin 6-output)
C
0 is reduced by approx. 0,3 pF.
3)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 frequency1)
f
c304,275 304,325 304,375 MHz
Minimum insertion attenuation αmin — 1,4 1,7 dB
Unloaded quality factor
Q
U8000 13700 —
Ageing of
f
c——±50 ppm
Equivalent circuit elements
Motional capacitance
C
1— 2,13 — fF
Motional inductance
L
1— 128,40 — µH
Motional resistance
R
1—1828Ω
Parallel capacitance 2)
C
0— 3,2 — pF
Temperature coefficient of frequency 3)
TC
f— – 0,03 — ppm/K2
Turnover temperature
T
015 — 45 ˚C
4Jul 26, 2002
SAW Components R 734
304,325 MHzResonator
Data Sheet
Published by EPCOS AG
Surface Acoustic Wave Components Division, SAW CE AE
P.O. Box 80 17 09, 81617 Munich, GERMANY
.EPCOS AG 2002. Reproduction, publication and dissemination of this brochure and the informa-
t
ion contained therein without EPCOS’ prior express consent is prohibited.
Purchase orders are subject to the General Conditions for the Supply of Products and Services of
t
he Electrical and Electronics Industry recommended by the ZVEI (German Electrical and Electronic
Manufacturers’ Association), unless otherwise agreed.
T
his brochure replaces the previous edition.
For questions on technology, prices and delivery please contact the Sales Offices of EPCOS AG or
t
he international Representatives.
Due to technical requirements components may contain dangerous substances. For information on
t
he type in question please also contact one of our Sales Offices.
