SAW filters for infrastructure systems
Series/Type: B3825
The following products presented in this data sheet are being withdrawn.
Ordering Code Substitute Product Date of Withdrawal Deadline Last Orders Last Shipments
B39381B3825H310 2012-01-13 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.
2April 26, 2005
SAW Components B3825
380,00 MHzLow-Loss Filter
Data Sheet
Ceramic package QCC12C
00
00
00
00
11
11
11
11
00
00
00
00
11
11
11
11
00
00
00
00
11
11
11
11
00
00
00
00
11
11
11
11
00
00
00
00
11
11
11
11
000
000
000
000
111
111
111
111
00
00
00
00
11
11
11
11
000
000
000
000
111
111
111
111
000
000
000
000
111
111
111
111
000
000
000
000
000
000
111
111
111
111
111
111
000
0
0
0
0
0
0
0
0
0
000
111
1
1
1
1
1
1
1
1
1
111
00
0
0
0
0
0
0
00
11
1
1
1
1
1
1
11
00
0
0
0
0
0
0
00
11
1
1
1
1
1
1
11
1,48
side view
7,0
5,0
top view
456
1110 12
2,54
1,4
2
8
2,54
0,6
31
7
bottom view
9
1,0
Features
■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
Terminals
■Gold plated
Dim. in mm, aprox. weight 0,22 g
Pin configuration
12 Input
10 Input ground or balanced input
6 Output
4 Output ground or balanced output
1, 2, 7, 8 to be grounded
3, 9 Case - ground
Electrostatic Sensitive Device (ESD)
Type Ordering code Marking and Package
according to Packing
according to
B3825 B39381-B3825-H310 C61157-A7-A95 F61074-V8170-Z000
Maximum ratings
Operable temperature range
T
– 40/+ 85 ˚C
Storage temperature range
T
stg – 40/+ 85 ˚C
DC voltage
V
DC 0V
Source power
P
s10 dBm
3April 26, 2005
SAW Components B3825
380,00 MHzLow-Loss Filter
Data Sheet
Characteristics (unbalanced operation)
Operating temperature: T = -25 to +85 ˚C
Terminating source impedance:
Z
S= 577 Ω || 20 nH
Terminating load impedance:
Z
L= 817 Ω || 21 nH
min. typ. max.
Nominal frequency
f
N— 380,0 — MHz
Minimum insertion attenuation αmin 8,0 8,9 10,0 dB
(including matching network 1))
Passband width
B
3,0dB
αrel ≤3,0 dB 4,9 5,1 5,3 MHz
Amplitude ripple (p-p) ∆α
f
N±1,92 MHz 0,2 1,0 1,2 dB
Phase ripple (p-p) ∆ϕ
f
N±1,92 MHz 3,0 5,0 7,0 ˚
Absolute group delay τ
@
f
N360 460 560 ns
Group delay ripple (p-p) ∆τ
f
N±1,92 MHz 40 80 180 ns
Mean value of absolute group delay τ
f
N±1,92 MHz 440 460 480 ns
Adjacent channel selectivity
ACS
24 32 39 dB
Intermodulation
IM3
f1 = 360 MHz, input power 0 dBm
f2 = 370 MHz, input power 0 dBm
@
f
N-120 -95 -85 dBm
f1 = 360 MHz, input power -5 dBm
f2 = 370 MHz, input power -5 dBm
@
f
N-135 -110 -100 dBm
4April 26, 2005
SAW Components B3825
380,00 MHzLow-Loss Filter
Data Sheet
1) Matching inductor Q=40
2) Temperature dependance of
f
c:
f
c(
T
A) =
f
c(
T
0)(1 +
TC
f(
T
A –
T
0)2)
min. typ. max.
f1 = 390 MHz, input power 0 dBm
f2 = 400 MHz, input power 0 dBm
@
f
N-120 -95 -85 dBm
f1 = 390 MHz, input power -5 dBm
f2 = 400 MHz, input power -5 dBm
@
f
N-135 -110 -100 dBm
Minimum relative attenuation (relative to αmin)αrel
at
f
N - 5,0 MHz 37 40 50 dB
at
f
N + 5,0 MHz 40 45 50 dB
DC ...
f
N - 20,0 MHz 42 46 55 dB
f
N - 20,0 MHz ...
f
N - 17,5 MHz 35 38 45 dB
f
N - 17,5 MHz ...
f
N - 13,5 MHz 42 45 55 dB
f
N - 13,5 MHz ...
f
N - 7,5 MHz 38 40 45 dB
f
N - 7,5 MHz ...
f
N - 4,1 MHz 35 38 45 dB
f
N - 4,1 MHz ...
f
N - 3,2 MHz 20 22 40 dB
f
N + 3,2 MHz ...
f
N+ 4,1 MHz 20 23 40 dB
f
N + 4,1 MHz ...
f
N+ 5,0 MHz 34 37 45 dB
f
N + 5,0 MHz ...
f
N+ 8,0 MHz 37 39 45 dB
f
N + 8,0 MHz ...
f
N+ 10,5 MHz 32 35 45 dB
f
N + 10,5 MHz ...
f
N+ 17,5 MHz 39 42 50 dB
f
N + 17,5 MHz ...
f
N+ 20,0 MHz 35 38 45 dB
f
N + 20,0 MHz ...
f
N+100,0 MHz 40 43 55 dB
Impedance at fN (without matching)
Input: ZIN = RIN || CIN — 795 || 6 — Ω || pF
Output: ZOUT=R
OUT || COUT — 652 || 6 — Ω || pF
Temperature coefficient of frequency 2)
TC
f— –0,036 — ppm/K2
Turnover temperature
T
0—25—˚C
5April 26, 2005
SAW Components B3825
380,00 MHzLow-Loss Filter
Data Sheet
Matching network
(Element values depend upon PCB layout)
Ls1 = 68 nH Lp3 = 27 nH
Lp2 = 27 nH Ls4 = 82 nH
6April 26, 2005
SAW Components B3825
380,00 MHzLow-Loss Filter
Data Sheet
Normalized frequency response
Normalized frequency response (pass band)
7April 26, 2005
SAW Components B3825
380,00 MHzLow-Loss Filter
Data Sheet
Published by EPCOS AG
Surface Acoustic Wave Components Division, SAW MC PD
P.O. Box 80 17 09, D-81617 München
EPCOS AG 2005. All Rights Reserved. Reproduction, publication and dissemination of this bro-
chure and the information contained therein without EPCOS’ prior express consent is prohibited.
T
he information contained in this brochure describes the type of component and shall not be con-
sidered as guaranteed characteristics. Purchase orders are subject to the General Conditions for
t
he Supply of Products and Services of the 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.
