b39131-b4865-h310 EPCOS AG, b39131-b4865-h310 Datasheet - Page 4

• Manufacturer Part Number: b39131-b4865-h310
• Description: 134,04 Mhz Low Loss Filter For Mobile Communication
• Manufacturer: EPCOS AG

Data Sheet
Test matching networks to 50
a) Unbalanced - unbalanced matching network
b) Balanced - balanced matching network
SAW Components
Low Loss Filter for Mobile Communication
Note :
The balanced - balanced network is realized using TOKO 1:1 baluns B5FL. The insertion attenu-
ation of each balun is 0,6 dB at f
insertion attenuation.
The level of ultimate suppression may be limited by electromagnetic feedthrough depending on
the layout of the pcb and the arrangement of the matching components.
The above mentioned characteristics can be realized either in balanced or in unbalanced mode
of operation.
For more details see our application note PCB Layout for Highly Selective IF Filters .
(element values depend on pcb layout)
N
. The loss of the baluns is not included in the specified filter
4
March 06, 2002
L
C
C
L
C
L
L
C
s1
s4
p2
p3
p1
p2
s1
s2
= 220 nH
= 3,9 pF
= 3,9 pF
= 180 nH
= C
= 150 nH
= 150 nH
= C
s3
s4
=15 pF
= 15 pF
134,04 MHz
B4865