SAW Components
Data Sheet B3678
SAW Components
Low-Loss Filter
Data Sheet
B3678
246,0 MHz
Ceramic package
QCC8C
Features
Low-loss IF filter
Low insertion attenuation
Low amplitude ripple
Usable passband 1 MHz
No matching network required for operation
at 200
Ω
(input) and 50
Ω
(output)
q
Balanced input, unbalanced output
q
Ceramic package for
Surface Mounted
Technology
(SMT)
q
q
q
q
q
Terminals
q
Ni, gold-plated
Dimensions in mm, approx. weight 0,1 g
Pin configuration
5, 6
2
1
4, 8
3, 7
Type
B3678
Balanced Input (200
Ω)
Output (50
Ω)
To be grounded
Case ground
Not connected
Ordering code
B39251-B3678-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
T
stg
V
DC
P
s
– 25 / + 85
– 40 / + 85
0
0
˚C
˚C
V
dBm
2
Nov 17, 1999
SAW Components
Low-Loss Filter
Data Sheet
Characteristics
Operating temperature range:
Terminating source impedance:
Terminating load impedance:
B3678
246,0 MHz
T
= -25 to +85˚C
Z
S
= 200
Ω
Z
L
= 50
Ω
min.
typ.
246,00
max.
—
MHz
Nominal frequency
Maximum insertion attenuation
245,5 ... 246,5
Amplitude ripple
in any 200 kHz span:
245,5 ... 246,5
245,5 ... 246,5
MHz
MHz
f
N
α
max
MHz
∆α
—
—
1,9
2,5
dB
—
—
∆τ
0,2
0,1
0,4
0,2
dB
dB
Group delay ripple
(p-p)
245,8 ... 246,2
245,5 ... 246,5
Attenuation
100,0
226,0
256,0
266,0
268,0
...
...
...
...
...
226,0
236,0
266,0
268,0
500,0
MHz
MHz
α
rel
MHz
MHz
MHz
MHz
MHz
—
—
10,0
15,0
40,0
50,0
ns
ns
40
7
7
25
35
50
50
15
40
50
—
—
—
—
—
dB
dB
dB
dB
dB
3
Nov 17, 1999
SAW Components
Low-Loss Filter
Data Sheet
Transfer function
(reduced three port meaurement)
B3678
246,0 MHz
Transfer function
(reduced three port meaurement)
4
Nov 17, 1999
SAW Components
Low-Loss Filter
Data Sheet
B3678
246,0 MHz
Published by EPCOS AG
Surface Acoustic Wave Components Division, OFW E NK
P.O. Box 80 17 09, D-81617 München
©
EPCOS AG 1999. 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.
5
Nov 17, 1999
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