EPCOS B39921-B3858-U410

SAW Components
Data Sheet B3858
SAW Components
B3858
Low-Loss Filter
924,5 MHz
Data Sheet
Ceramic package DCC6C
Features
Low-loss RF filter for TETRA phone
Usable bandwidth 5 MHz
No matching required for operation at 50 Ω
Package for Surface Mounted Technology
(SMT)
● Hermetically sealed ceramic package
●
●
●
●
Terminals
● Gold-plated
typ. Dimensions in mm, approx. weight 0,037 g
Pin configuration
2
5
1, 3, 4, 6
Type
B3858
Input
Output
To be grounded
Ordering code
B39921-B3858-U410
Marking and Package
Packing
according to
according to
C61157-A7-A67
F61074-V8088-Z000
Electrostatic Sensitive Device (ESD)
Maximum ratings
Operable temperature range
Storage temperature range
DC voltage
Source power (cw)
TA
Tstg
VDC
Ps
-35 / +85
-40 / +85
0
6
2
˚C
˚C
V
dBm
source impedance 50 Ω
May 24, 2002
SAW Components
B3858
Low-Loss Filter
924,5 MHz
Data Sheet
Characteristics
Operating temperature range:
Terminating source impedance:
Terminating load impedance:
TA = 25 ± 10 ˚C
ZS = 50 Ω
ZL = 50 Ω
Nominal frequency
fN
Maximum insertion attenuation
922,0 MHz ... 927,0 MHz
αmax
Amplitude ripple (p-p)
922,0 MHz ... 927,0 MHz
∆α
Group delay ripple (p-p)
922,0 MHz ... 927,0 MHz
∆τ
Return loss (Input and Output)
922,0 MHz ... 927,0 MHz
Absolute attenuation
0,1 MHz
...
937,0 MHz ...
942,0 MHz ...
947,0 MHz ...
952,0 MHz ...
2000,0 MHz ...
min.
typ.
max.
—
924,5
—
—
1,8
2,8
dB
—
0,3
1,0
dB
MHz
—
15
40
ns
11,0
17,0
—
dB
12
10
14
18
26
15
34
16
27
29
29
26
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
—
– 36
—
ppm/K
αabs
895,0 MHz
942,0 MHz
947,0 MHz
952,0 MHz
2000,0 MHz
4000,0 MHz
TCf
Temperature coefficient of frequency
3
May 24, 2002
SAW Components
B3858
Low-Loss Filter
924,5 MHz
Data Sheet
Characteristics
Operating temperature range:
Terminating source impedance:
Terminating load impedance:
TA = -30 ... +75 ˚C
ZS = 50 Ω
ZL = 50 Ω
Nominal frequency
fN
Maximum insertion attenuation
922,0 MHz ... 927,0 MHz
αmax
Amplitude ripple (p-p)
922,0 MHz ... 927,0 MHz
∆α
Group delay ripple (p-p)
922,0 MHz ... 927,0 MHz
∆τ
Return loss (Input and Output)
922,0 MHz ... 927,0 MHz
Absolute attenuation
0,1 MHz
...
937,0 MHz ...
942,0 MHz ...
947,0 MHz ...
952,0 MHz ...
2000,0 MHz ...
min.
typ.
max.
—
924,5
—
—
2,0
3,4
dB
—
0,3
1,3
dB
MHz
—
20
40
ns
11,0
17,0
—
dB
10
8
12
15
26
15
34
14
27
29
29
26
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
—
– 36
—
ppm/K
αabs
895,0 MHz
942,0 MHz
947,0 MHz
952,0 MHz
2000,0 MHz
4000,0 MHz
TCf
Temperature coefficient of frequency
4
May 24, 2002
SAW Components
B3858
Low-Loss Filter
924,5 MHz
Data Sheet
Transfer function
Transfer function (pass band, 25 ± 10 ˚C)
5
May 24, 2002
SAW Components
B3858
Low-Loss Filter
924,5 MHz
Data Sheet
Published by EPCOS AG
Surface Acoustic Wave Components Division, SAW MC IS
P.O. Box 80 17 09, 81617 Munich, GERMANY
 EPCOS AG 2002. Reproduction, publication and dissemination of this brochure and the information 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
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.
6
May 24, 2002