SAW Components
Low Loss Filter
PreliminaryData Sheet
B4057
1228.0 MHz
Ceramic package
DCC6D
Features
q
q
q
q
q
Low loss RF filter for GPS receivers
Usable passband 20 MHz
Low insertion attenuation, low amplitude ripple
Unbalanced to balanced operation
Ceramic package for
Surface Mounted
Technology
(SMT)
Terminals
q
Ni, gold-plated
Dimensions in mm, approx. weight 0,037 g
Pin configuration
2
4, 6
1, 3, 5
1, 3, 5
Input, unbalanced
Output, balanced
To be grounded
Case ground
Type
B4057
Ordering code
B39122-B4057-U510
Marking and Package
according to
C61157-A7-A68
Packing
according to
F61074-V8089-Z000
Electrostatic Sensitive Device
(ESD)
Maximum ratings
Operable temperature range
Storage temperature range
DC voltage
Source power
T
T
stg
V
DC
P
S
-40 / +85
-40 / +85
0
0
˚C
˚C
V
dBm
source impedance 50
Ω
2
Feb 6, 2001
SAW Components
Low Loss Filter
PreliminaryData Sheet
B4057
1228.0 MHz
Characteristics
Operating temperature range:
Terminating source impedance:
Terminating load impedance:
T
= -40 ˚C to +85 ˚C
Z
S
= 50
Ω
Z
L
= 50
Ω
(balanced)
min.
Center frequency
Maximum insertion attenuation
1218,0 ...1238,0
Amplitude ripple
(p-p)
1218,0 ...1238,0
Absolute attenuation
0,0
1088,0
1178,0
1263,0
1278,0
1368,0
1785,0
2500,0
... 1088,0
... 1178,0
... 1193,0
... 1278,0
... 1368,0
... 1785,0
... 2500,0
... 4000,0
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
typ.
1228,0
max.
—
MHz
f
c
α
max
MHz
∆α
MHz
α
—
—
3,0
3,5
dB
—
1,0
1,5
dB
35,0
30,0
11,0
10,0
28,0
33,0
27,0
18,0
53,0
48,0
30,0
23,0
31,0
48,0
48,0
28,0
—
—
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
dB
3
Feb 6, 2001
SAW Components
Low Loss Filter
PreliminaryData Sheet
B4057
1228.0 MHz
Published by EPCOS AG
Surface Acoustic Wave Components Division, SAW MC IS PD WL
P.O. Box 80 17 09, D-81617 München
©
EPCOS AG 2000. 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
Feb 6, 2001
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