SAW filters for mobile
communications
Series/Type:
B9815
The following products presented in this data sheet are being withdrawn.
Ordering Code
B39202B9815P810
Substitute Product
B39202B9825P810
Date of Withdrawal
2015-11-20
Deadline Last
Orders
2016-03-01
Last Shipments
2016-06-30
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.
SAW Components
SAW 2in1 filter
Data sheet
Application
s
Low-loss 2in1 RF filter for mobile telephone
s
B9815
1900.0 / 2017.5 MHz
s
s
s
s
TD-SCDMA 1900 and TD-SCDMA 2100 systems
Usable passband:
Filter 1 (TD-SCDMA 1900): 40 MHz
Filter 2 (TD-SCDMA 2100): 15 MHz
Unbalanced to balanced operation for both filters
Impedance transformation from 50
Ω
to 200
Ω
for
both filters
Low amplitude ripple
No matching network required
Features
s
s
s
s
s
s
s
0.49
0.18
0.175
1
2
3
0,39
4
0.18
0,4
1.5
1.1
Package size 1.5 x1.1 x 0.4 mm
3
Moisture Sensitive Level 3
RoHS compatible
Approx. weight 0.003g.
Package for
Surface Mount Technology
(SMT)
Ni, gold-plated terminals
Electrostatic Sensitive Device
(ESD)
10
0.075
5
bottom view
9
8
7
6
0.075
0.21
side view
top view
Pin configuration
s
s
s
s
s
1
4
6,7
8,9
2,3,5,10
Input [ Filter 1]
Input [ Filter 2 ]
Output balanced [ Filter 2 ]
Output balanced [ Filter 1 ]
Case ground
1
9
8
7
4
2,3,5,10
6
Please read
cautions and warnings and
important notes
at the end of this document.
2
May 3, 2011
SAW Components
SAW 2in1 filter
Data sheet
Characteristics of Filter 1 (TD-SCDMA 1900)
Temperature range for specification:
Terminating source impedance:
Terminating load impedance:
B9815
1900.0 / 2017.5 MHz
T
=
Z
S
=
Z
L
=
-30 ˚C to +85 ˚C
50
Ω
200
Ω
B9815
typ.
@ 25 ˚C
1900.0
min.
Center frequency
Maximum insertion attenuation
1880.0 ... 1920.0MHz
Amplitude ripple
(p-p)
1880.0 ... 1920.0MHz
Input VSWR
1880.0 ... 1920.0MHz
Output VSWR
1880.0 ... 1920.0MHz
Group delay ripple (p-p)
1880.0 ... 1920.0MHz
Common mode rejection ratio
1880.0 ... 1920.0MHz
Attenuation
0.0
925.0
960.0
1805.0
1840.0
1980.0
2005.0
1)
max.
—
2.0
1.0
2.0
2.0
18
—
—
—
—
—
—
—
—
ns
dB
dB
dB
dB
dB
dB
dB
dB
MHz
dB
dB
f
C
α
max
—
—
1.6
0.5
1.6
1.7
8
27
62
63
41
35
44
29
37
∆α
—
—
—
—
20
1)
α
28
35
28
30
32
15
28
...
...
...
...
...
...
...
925.0MHz
960.0MHz
1805.0MHz
1840.0MHz
1850.0MHz
2005.0MHz
6000.0MHz
A CMRR of 19.6dB corresponds to a phase balance of 10˚ together with an amplitude balance
of 1.0dB
Please read
cautions and warnings and
important notes
at the end of this document.
3
May 3, 2011
SAW Components
SAW 2in1 filter
Data sheet
B9815
1900.0 / 2017.5 MHz
Maximum ratings of Filter 1 (TD-SCDMA 1900)
Operable temperature range T
Storage temperature range
DC voltage
ESD voltage
Input power at
1880.0 ... 1920.0 MHz
2010.0 ... 2025.0 MHz
1)
–40/+85
–40/+85
5
50
1)
10
10
˚C
˚C
V
V
dBm
dBm
machine model, 1 pulse
effective power in the on-state,
duty cycle 4:8, 2000hours
T
stg
V
DC
V
ESD
P
IN
P
IN
acc. to JESD22-A115A (machine model), 1 negative & 1 positive pulse.
Please read
cautions and warnings and
important notes
at the end of this document.
4
May 3, 2011
SAW Components
SAW 2in1 filter
Data sheet
Transfer function Filter 1 (TD-SCDMA 1900)
B9815
1900.0 / 2017.5 MHz
Transfer function Filter 1 (TD-SCDMA 1900)
- Wideband
Please read
cautions and warnings and
important notes
at the end of this document.
5
May 3, 2011
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