SAW filters for infrastructure systems
Series/Type:
B3825
The following products presented in this data sheet are being withdrawn.
Ordering Code
B39381B3825H310
Substitute Product
Date of Withdrawal
2012-01-13
Deadline Last Orders Last Shipments
2012-12-31
2013-03-30
For further information please contact your nearest EPCOS sales office, which will also support you in selecting a suitable
substitute. The addresses of our worldwide sales network are presented at www.epcos.com/sales.
SAW Components
Low-Loss Filter
Data Sheet
B3825
380,00 MHz
Ceramic package
QCC12C
Features
s
s
s
s
s
2,54
111
000
111
000
111
000
111
000
12
11
IF low-loss filter for base stations
Channel selection in W-CDMA systems
Balanced and unbalanced operation possible
3,84 MHz usable bandwidth
Ceramic SMD package
2,54
1
111
000
111
000
111
000
111
000
111
000
111
000
1,4
2
11
00
11
00
11
00
11
00
3
11
00
11
00
11 11
00 00
11 11
00 00
11
00
11
00
4
1,0
bottom view
6
5
111
000
111
000
111
000
111 111 11 11
000 000 00 00
111 11 11
000 00 00
111 11 11
000 00 00
111 11 11
000 00 00
9
8
7
10
11
00
11
00
11
00
11
00
Terminals
1,48
0,6
111
000
111
000
111
000
111
000
111
000
11
00
11
00
11
00
11
00
11
00
11
00
11
00
11
00
11
00
11
00
s
Gold plated
side view
5,0
top view
7,0
Dim. in mm, aprox. weight 0,22 g
Pin configuration
12
10
6
4
1, 2, 7, 8
3, 9
Input
Input ground or balanced input
Output
Output ground or balanced output
to be grounded
Case - ground
Type
B3825
Ordering code
B39381-B3825-H310
Marking and Package
according to
C61157-A7-A95
Packing
according to
F61074-V8170-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
10
˚C
˚C
V
dBm
2
April 26, 2005
SAW Components
Low-Loss Filter
Data Sheet
Characteristics (unbalanced operation)
Operating temperature:
Terminating source impedance:
Terminating load impedance:
T = -25 to +85 ˚C
Z
S
= 577
Ω ||
20 nH
Z
L
= 817
Ω ||
21 nH
min.
Nominal frequency
Minimum insertion attenuation
(including matching network
1)
)
Passband width
α
rel
≤
3,0 dB
Amplitude ripple
(p-p)
typ.
380,0
8,9
max.
—
10,0
B3825
380,00 MHz
f
N
α
min
—
8,0
MHz
dB
B
3,0dB
4,9
∆α
5,1
5,3
MHz
f
N
±
1,92 MHz
Phase ripple
(p-p)
∆ϕ
0,2
1,0
1,2
dB
f
N
±
1,92 MHz
Absolute group delay
@f
N
Group delay ripple
(p-p)
∆τ
τ
3,0
5,0
7,0
˚
360
460
560
ns
f
N
±
1,92 MHz
Mean value of absolute group delay
f
N
±
1,92 MHz
Adjacent channel selectivity
Intermodulation
f1 = 360 MHz, input power 0 dBm
f2 = 370 MHz, input power 0 dBm
@f
N
f1 = 360 MHz, input power -5 dBm
f2 = 370 MHz, input power -5 dBm
@f
N
τ
40
80
180
ns
440
460
32
480
39
ns
dB
ACS
IM3
24
-120
-95
-85
dBm
-135
-110
-100
dBm
3
April 26, 2005
SAW Components
Low-Loss Filter
Data Sheet
min.
f1 = 390 MHz, input power 0 dBm
f2 = 400 MHz, input power 0 dBm
@f
N
f1 = 390 MHz, input power -5 dBm
f2 = 400 MHz, input power -5 dBm
@f
N
Minimum relative attenuation
(relative to
α
min
)
α
rel
at
f
N
- 5,0 MHz
at
f
N
+ 5,0 MHz
DC
...
f
N
- 20,0 MHz
f
N
- 20,0 MHz ...
f
N
- 17,5 MHz
f
N
- 17,5 MHz ...
f
N
- 13,5 MHz
f
N
- 13,5 MHz ...
f
N
- 7,5 MHz
f
N
- 7,5 MHz ...
f
N
- 4,1 MHz
f
N
- 4,1 MHz ...
f
N
- 3,2 MHz
f
N
+ 3,2 MHz ...
f
N
+ 4,1 MHz
f
N
+ 4,1 MHz ...
f
N
+ 5,0 MHz
f
N
+ 5,0 MHz ...
f
N
+ 8,0 MHz
f
N
+ 8,0 MHz ...
f
N
+ 10,5 MHz
f
N
+ 10,5 MHz ...
f
N
+ 17,5 MHz
f
N
+ 17,5 MHz ...
f
N
+ 20,0 MHz
f
N
+ 20,0 MHz ...
f
N
+100,0 MHz
Impedance
at f
N
(without matching)
Input: Z
IN
= R
IN
|| C
IN
Output: Z
OUT
= R
OUT
|| C
OUT
Temperature coefficient of frequency
2)
Turnover temperature
1)
Matching
B3825
380,00 MHz
typ.
max.
-120
-95
-85
dBm
-135
-110
-100
dBm
37
40
42
35
42
38
35
20
20
34
37
32
39
35
40
40
45
46
38
45
40
38
22
23
37
39
35
42
38
43
50
50
55
45
55
45
45
40
40
45
45
45
50
45
55
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
—
—
795 || 6
652 || 6
–0,036
25
—
—
—
—
Ω ||
pF
Ω ||
pF
ppm/K
2
˚C
TC
f
T
0
—
—
inductor Q=40
dependance of
f
c
:
2)
Temperature
f
c
(T
A
) =
f
c
(T
0
)(1 +
TC
f
(T
A
–
T
0
)
2
)
4
April 26, 2005
SAW Components
Low-Loss Filter
Data Sheet
Matching network
(Element values depend upon PCB layout)
B3825
380,00 MHz
L
s1
= 68 nH
L
p2
= 27 nH
L
p3
= 27 nH
L
s4
= 82 nH
5
April 26, 2005
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