SAW filters for infrastructure systems
Series/Type:
B4846
The following products presented in this data sheet are being withdrawn.
Ordering Code
B39231B4846U310
Substitute Product
Date of Withdrawal
2011-04-01
Deadline Last
Orders
2011-06-30
Last Shipments
2011-09-30
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.
EPCOS AG 2015. Reproduction, publication and dissemination of this publication, enclosures hereto and the information
contained therein without EPCOS' prior express consent is prohibited.
EPCOS AG is a TDK Group Company.
SAW Components
Low-Loss Filter for Mobile Communication
Data Sheet
B4846
225,0 MHz
SMD Ceramic package
QCC8C
Features
q
Low-loss RF filter for mobile telephone
q
Channel selection in GSM, PCN systems
q
Ceramic Package for
Surface Mounted
Technology
(SMT)
q
Low insertion attenuation
q
Low group delay ripple
Terminals
q
Gold-plated Ni
Dimensions in mm, approx. weight 0,10 g
Pin configuration
1, 2
5, 6
4, 8
3, 7
Input, balanced
Output, balanced
Case - ground
To be grounded
Type
B4846
Ordering code
B39231-B4846-U310
Marking and Package
according to
C61157-A7-A67
Packing
according to
F61074-V8088-Z000
Electrostatic Sensitive Device
(ESD)
Maximum ratings
Operable temperature range
Storage temperature range
DC voltage
ESD voltage
Source power
T
T
stg
V
DC
V*
ESD
P
s
– 25/+ 80
– 40/+ 85
5
100*
10
˚C
˚C
V
V
dBm
Machine Model, 10 pulses
* - acc. to JESD22-A115A (Machine Model), 10 negative & 10 positive pulses
2
Feb 03, 2005
SAW Components
Low-Loss Filter for Mobile Communication
Data Sheet
Characteristics
Operating temperature range:
Terminating source impedance:
Terminating load impedance:
B4846
225,0 MHz
T
= 25 ˚C
Z
S
= 860
Ω ||
-2,0pf
Z
L
= 860
Ω ||
-2,0pf
min.
typ.
225,01
3,9
max.
—
4,5
MHz
dB
Nominal frequency
Minimum insertion attenuation
(including loss in baluns and matching elements)
Amplitude ripple
(p-p)
f
N
- 67,5 kHz
...
f
N
+ 67,5 kHz
f
N
- 80,0 kHz
...
f
N
+ 80,0 kHz
Group delay ripple
(p-p)
f
N
- 50,0 kHz
...
f
N
+ 50,0 kHz
f
N
- 67,5 kHz
...
f
N
+ 67,5 kHz
f
N
- 80,0 kHz
...
f
N
+ 80,0 kHz
Relative attenuation
(relative to
α
min
)
f
N
- 15,00 MHz ...
f
N
- 5,00 MHz
f
N
- 5,00 MHz ...
f
N
- 2,00 MHz
f
N
- 2,00 MHz ...
f
N
- 0,60 MHz
f
N
- 0,60 MHz ...
f
N
- 0,40 MHz
f
N
- 0,40 MHz ...
f
N
- 0,20 MHz
f
c
α
min
∆α
—
3,0
—
—
∆τ
—
—
—
α
rel
42
42
36
26,5
6,5
6,5
26,5
36
43
42
—
—
0,6
0,7
0,2
0,3
0,6
45
46
37
29
12
12
29
37
47
45
860 || 2,0
860 || 2,0
-0,036
25
1,6
3,0
1,3
1,5
1,8
—
—
—
—
—
—
—
—
—
—
—
—
—
—
dB
dB
µs
µs
µs
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Ω
|| pF
Ω
|| pF
ppm/K
2
˚C
f
N
+ 0,20 MHz
f
N
+ 0,40 MHz
f
N
+ 0,60 MHz
f
N
+ 2,00 MHz
f
N
+ 3,00 MHz
...
...
...
...
...
f
N
+ 0,40 MHz
f
N
+ 0,60 MHz
f
N
+ 2,00 MHz
f
N
+ 5,0 MHz
f
N
+ 15,0 MHz
Impedance
within the passband
Input:
Z
IN
=
R
IN
||
C
IN
Output:
Z
OUT
=
R
OUT
||
C
OUT
Temperature coefficient of frequency
1)
Frequency inversion point
1)
Temperature
TC
f
T
0
—
—
dependence of
f
c
:
f
c
(T) =
f
c
(T
0
)(1 +
TC
f
(T –
T
0
)
2
)
3
Feb 03, 2005
SAW Components
Low-Loss Filter for Mobile Communication
Data Sheet
Characteristics
Operating temperature range:
Terminating source impedance:
Terminating load impedance:
B4846
225,0 MHz
T
= -20 to +75˚C
Z
S
= 860
Ω || −2,0pf
Z
L
= 860
Ω || −2,0pf
min.
typ.
225,00
3,9
max.
—
5,0
MHz
dB
Nominal frequency
Minimum insertion attenuation
(including loss in baluns and matching elements)
Amplitude ripple
(p-p)
f
N
- 67,5 kHz
...
f
N
+ 67,5 kHz
f
N
- 80,0 kHz
...
f
N
+ 80,0 kHz
Group delay ripple
(p-p)
f
N
- 50,0 kHz
...
f
N
+ 50,0 kHz
f
N
- 67,5 kHz
...
f
N
+ 67,5 kHz
f
N
- 80,0 kHz
...
f
N
+ 80,0 kHz
Relative attenuation
(relative to
α
min
)
f
N
- 15,00 MHz ...
f
N
- 5,00 MHz
f
N
- 5,00 MHz ...
f
N
- 2,00 MHz
f
N
- 2,00 MHz ...
f
N
- 0,60 MHz
f
N
- 0,60 MHz ...
f
N
- 0,40 MHz
f
N
- 0,40 MHz ...
f
N
- 0,20 MHz
f
N
α
min
∆α
—
3,0
—
—
∆τ
—
—
—
α
rel
42
43
35
26
5
5
26
35
43
42
—
—
0,7
0,8
0,2
0,4
0,7
45
46
37
29
13
11
29
37
47
45
860 || 2,0
860 || 2,0
-0,036
25
2,2
3,2
1,3
1,6
1,8
—
—
—
—
—
—
—
—
—
—
—
—
—
—
dB
dB
µs
µs
µs
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Ω
|| pF
Ω
|| pF
ppm/K
2
˚C
f
N
+ 0,20 MHz
f
N
+ 0,40 MHz
f
N
+ 0,60 MHz
f
N
+ 2,00 MHz
f
N
+ 5,00 MHz
...
...
...
...
...
f
N
+ 0,40 MHz
f
N
+ 0,60 MHz
f
N
+ 2,00 MHz
f
N
+ 5,00 MHz
f
N
+ 15,00 MHz
Impedance
within the passband
Input:
Z
IN
=
R
IN
||
C
IN
Output:
Z
OUT
=
R
OUT
||
C
OUT
Temperature coefficient of frequency
1)
Frequency inversion point
1)
Temperature
TC
f
T
0
—
—
dependence of
f
c
:
f
c
(T) =
f
c
(T
0
)(1 +
TC
f
(T –
T
0
)
2
)
4
Feb 03, 2005
SAW Components
Low-Loss Filter for Mobile Communication
Data Sheet
Test matching network
(element values depend on pcb layout)
B4846
225,0 MHz
Source impedance Z
S
=50
Ω,
load impedance Z
L
=50
Ω
L
s1
= L
s2
= 47 nH
L
s5
= L
s6
= 47 nH
C
p3
= C
p4
= 1,2 pF
5
Feb 03, 2005
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