®
RF360 Europe GmbH
A Qualcomm – TDK Joint Venture
SAW Components
SAW duplexer
WCDMA band VIII
Series/type:
Ordering code:
Date:
Version:
B8521
B39941B8521P810
November 26, 2014
2.0
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SAW Components
SAW duplexer
Data Sheet
Application
s
Low-loss SAW duplexer for mobile telephone
s
s
s
s
s
s
B8521
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
high Tx - Rx isolation
Features
s
Package size 1.8 x 1.4 mm
2
, max package height
s
s
s
s
s
s
0.3
1
2
3
0.35
0.475 mm.
RoHS compatible
approx. weight 0.0042g
Package for
Surface Mount Technology
(SMT)
Ni, gold-plated terminals
Electrostatic Sensitive Device
(ESD)
Moisture Sensitive Level
3
0.7
0.475 max.
7
6
5
0.25
0.25
4
8
4
bottom view
side view
1.8
7
6
5
1.4
8
top view
1
2
3
Pin configuration
s
s
s
s
3
1
1
3,4
6
2,5,7,8
TX input, single ended
RX output, balanced
Antenna
To be Grounded
4
2,7
5,8
6
Please read
cautions and warnings and
important notes
at the end of this document.
2
November 26, 2014
SAW Components
SAW duplexer
Data Sheet
Characteristics
Temperature range for specification:
ANT terminating impedance:
TX terminating impedance:
RX terminating impedance:
Characteristics Tx - Ant
Center frequency
Maximum insertion attenuation
@f
Carrier
882.4 ... 912.6
880.0 ... 915.0
880.24 ... 914.76
Amplitude ripple
(p-p)
@f
Carrier
882.4 ... 912.6
Error Vector Magnitude
@f
Carrier
882.4 ... 912.6
VSWR
TX port
880.0 ... 915.0
ANT port
Attenuation
0.3 ...
716.0 ...
728.0 ...
@f
Carrier
927.4 ...
925.0 ...
925.24 ...
1565.42 ...
1573.374...
1577.466...
1597.55 ...
1760.0 ...
1830.0 ...
2110.0 ...
2400.0 ...
2620.0 ...
3520.0 ...
4400.0 ...
5150.0 ...
5725.0 ...
1)
2)
3)
B8521
897.5 / 942.5 MHz
T = –20 ˚C to +90 ˚C
Z
ANT
= 50
Ω
|| 5.6nH
Z
TX
=
50
Ω
Z
RX
= 100
Ω
(balanced)
min.
f
C
MHz
α
WCDMA1)
MHz
MHz
MHz
∆α
WCDMA1)
MHz EVM
2)
MHz
MHz
α
—
—
—
—
—
—
—
—
30
32
30
42
38
3)
41
3)
37
37
37
37
32
27
27
28
22
20
20
15
10
typ.
@ 25 ˚C
897.5
2.1
2.8
2.7
1.2
2.1
1.7
1.7
37
37
35
48
48
48
45
45
44
43
38
33
32
33
27
26
30
18
16
max.
—
2.8
3.9
3.8
1.8
6.0
2.1
2.1
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
MHz
dB
dB
dB
dB
%
880.0
...
915.0
716.0 MHz
728.0 MHz
821.0 MHz
957.6 MHz
α
WCDMA1)
960.0 MHz
959.76 MHz
1573.374MHz
1577.466MHz
1585.42 MHz
1605.89 MHz
1830.0 MHz
1880.0 MHz
2170.0 MHz
2500.0 MHz
2745.0 MHz
3660.0 MHz
4575.0 MHz
5490.0 MHz
5850.0 MHz
Attenuation of WCDMA signal (“Powertransferfunction”). Please refer to annotation on page (6).
Error Vector Magnitude (EVM) based on definition given in 3GPP TS 25.141.
T=0
˚
C to +90
˚
C
Please read
cautions and warnings and
important notes
at the end of this document.
3
November 26, 2014
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