SAW Components
Duplexers for Cellular Phones
Series/Type:
B7953
The following products presented in this data sheet are being withdrawn.
Ordering Code
B39941B7953E110
Substitute Product
B39941B7934P810
Date of Withdrawal
2012-12-21
Deadline Last
Orders
2013-12-31
Last Shipments
2014-02-28
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 2012. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS' prior express consent is prohibited.
SAW Components
SAW duplexer
Data sheet
Application
s
Low-loss SAW duplexer for mobile telephone
s
s
s
s
s
s
B7953
897.5 / 942.5 MHz
WCDMA Band VIII systems
Low insertion attenuation
Low amplitude ripple
Usable passband 35 MHz
Single ended to balanced transformation
in Antenna - Rx path
Impedance transformation 50Ω to 100Ω
in Antenna - Rx path
Fully matched by integrated passives network
Features
s
Package size 2.5 x 2.0 x 0.89 mm
3
s
RoHS compatible
s
Package for
Surface Mount Technology
0,55
5
6
9
3
2
1
7
4
0,4
0,4
bottom view
8
(SMT)
s
Ni, gold-plated terminals
s
Electrostatic Sensitive Device
(ESD)
0,3
0,89
0,9
side view
2,5
2,0
top view
Pin configuration
s
s
s
s
1
3
1,8
3
6
2,4,5,7,9
RX output, balanced
TX input, single ended
Antenna
Ground
8
2,7
4,5,9
6
Please read
cautions and warnings and
important notes
at the end of this document.
2
September 28, 2009
SAW Components
SAW duplexer
Data sheet
Characteristics
Temperature range for specification:
ANT terminating impedance:
TX terminating impedance:
RX terminating impedance:
T = –20 ˚C to +85 ˚C
Z
ANT
= 50
Ω
Z
TX
=
50
Ω
Z
RX
= 100
Ω
(balanced)
B7953
typ.
@ 25 ˚C
897.5
B7953
897.5 / 942.5 MHz
Characteristics Tx - Ant
Center frequency
Maximum insertion attenuation
@f
Carrier
882.4 ... 912.6
Amplitude ripple
(p-p)
@f
Carrier
882.4 ...
Error Vector Magnitude
@f
Carrier
882.4 ...
@f
Carrier
882.4
VSWR
TX port
ANT port
Attenuation
0.3
@f
Carrier
927.4
1574.0
1760.0
1830.0
2110.0
2400.0
2620.0
3520.0
4400.0
5150.0
5725.0
1)
2)
3)
min.
f
C
—
max.
—
MHz
MHz
MHz
MHz
MHz
MHz
MHz
α
WCDMA1)
∆α
WCDMA1)
EVM
2)
EVM
2)
—
—
—
—
—
—
1.9
0.7
2.2
2.2
1.7
1.7
33
44
42
49
52
44
36
35
27
23
10
8
2.8
1.6
5.5
4.0
3)
2.0
2.0
—
—
—
—
—
—
—
—
—
—
—
—
dB
dB
%
%
912.6
912.6
912.6
915.0
915.0
793.0
957.6
1577.0
1830.0
1880.0
2170.0
2500.0
2745.0
3660.0
4575.0
5490.0
5850.0
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
880.0
880.0
α
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
α
WCDMA1)
30
38
38
38
27
27
30
30
20
15
2
2
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Attenuation of WCDMA signal (“Powertransferfunction”). Please refer to annotation on page (5).
Error Vector Magnitude (EVM) based on definition given in 3GPP TS 25.141.
T=-15
˚C
to +55
˚C
Please read
cautions and warnings and
important notes
at the end of this document.
3
September 28, 2009
SAW Components
SAW duplexer
Data sheet
Characteristics
Temperature range for specification:
ANT terminating impedance:
TX terminating impedance:
RX terminating impedance:
T = –20 ˚C to +85 ˚C
Z
ANT
= 50
Ω
Z
TX
=
50
Ω
Z
RX
= 100
Ω
(balanced)
B7953
typ.
@ 25 ˚C
942.5
B7953
897.5 / 942.5 MHz
Charcteristics Rx - Ant
Center frequency
Maximum insertion attenuation
@f
Carrier
927.4 ... 957.6
925.0
...
960.0
957.6
957.6
957.6
960.0
960.0
Amplitude ripple
(p-p)
@f
Carrier
927.4 ...
Error Vector Magnitude
@f
Carrier
927.4 ...
@f
Carrier
927.4
VSWR
RX port
ANT port
925.0
925.0
...
...
...
f
C
MHz
MHz
MHz
MHz
MHz
MHz
MHz
α
MHz
α
...
...
880.0
912.6
MHz
MHz
MHz
MHz
α
WCDMA1)
∆α
WCDMA1)
EVM
2)
EVM
2)
α
WCDMA1)
min.
—
max.
—
MHz
—
—
—
—
—
—
—
25
2.3
3.0
0.7
2.7
2.7
1.9
1.6
28
2.9
4.0
1.4
5.5
4.5
3)
2.2
2.0
—
dB
dB
dB
%
%
Common Mode Suppression
925.0 ... 960.0
Attenuation
0.3
@f
Carrier
882.4
1045.0
1750.0
dB
... 1750.0
... 4810.0
35
48
35
35
57
58
54
54
—
—
—
—
dB
dB
dB
dB
Characteristics Tx - Rx
Differential Mode Isolation
@f
Carrier
882.4 ... 912.6
@f
Carrier
927.4
...
957.6
912.6
Common Mode Isolation
@f
Carrier
882.4 ...
1)
2)
3)
MHz
MHz
MHz
α
WCDMA1)
α
WCDMA1)
α
WCDMA1)
55
42
50
58
45
55
—
—
—
dB
dB
dB
Attenuation of WCDMA signal (“Powertransferfunction”). Please refer to annotation on page (5).
Error Vector Magnitude (EVM) based on definition given in 3GPP TS 25.141.
T= +5
˚C
to +85
˚C
Please read
cautions and warnings and
important notes
at the end of this document.
4
September 28, 2009
SAW Components
SAW duplexer
Data sheet
B7953
897.5 / 942.5 MHz
Maximum ratings
Operable temperature
range
1)
Storage temperature range
DC voltage
ESD voltage
Input power at
880.0 ... 915.0 MHz
elsewhere
1)
T
T
stg
V
DC
V
ESD
P
IN
–30/+85
–40/+85
5
100
2)
30
10
˚C
˚C
V
V
dBm
dBm
machine model, 10 pulses
}
continuous wave
55 ˚C, 10000 h
Defines the temperature range in which the SAW device keeps its typical characteristics, however the
specification values are not guaranteed.
acc. to JESD22-A115A (machine model), 10 negative & 10 positive pulses.
2)
Annotation for characteristics section
Attenuation of WCDMA signal (“Powertransferfunction”,
α
WCDMA
) is determined by
∫
∞
S
ds 21
(
f
)H
RRC
(
f – f
Carrier
)
∞
2
df
f
Carrier
according to 3GPP TS 25.101 (e.g. for UMTS-Passband, f
Carrier
ranges from 2112.4 MHz
(lowest Rx channel) to 2167.6 MHz (highest Rx channel)). H
RRC
(f) is the transfer function of the
root-raised cosine transmit pulse shaping filter according to 3GPP TS 25.101 with the following
normalization:
∫
∞
H
RRC
(
f
)
∞
2
df = 1
Please read
cautions and warnings and
important notes
at the end of this document.
5
September 28, 2009
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