SAW Components
SAW band–stop filter
ISDB–T
Series/type:
Ordering code:
Date:
Version:
B8780
B39911-B8780-N510
April 08, 2009
2.0
©
EPCOS AG 2009. Reproduction, publication and dissemination of this data sheet, enclosures
hereto and the information contained therein without EPCOS’ prior express consent is prohibited.
SAW Components
SAW band–stop filter
Data sheet
Application
s
s
s
s
s
s
B8780
832.0 / 911.5 MHz
Low-loss RF band–stop filter for ISDB-T
Very low insertion loss
Very low amplitude ripple and group delay ripple
Usable pass band width 300 MHz
Impedance at input and output 50
Ω
Unbalanced to unbalanced operation
Features
s
s
s
s
s
s
s
s
0.55
Package size 1.7
×
1.3
×
0.4
Maximum package height of 0.45 mm
Package code QCS10K
RoHS compatible
Approximate weight 0.008 g
Package for
Surface Mount Technology
(SMT)
Ni, gold-plated terminals
Electrostatic Sensitive Device
(ESD)
mm
3
0.20
1
0.225
2
3
0.45
4
0.20
0.4
1.3
10
0.075
5
bottom view
9
0.25
8
7
6
0.075
side view
1.7
top view
Pin configuration
s
s
s
s
s
s
1
9
9
8
7
6
1,4
2,3,5,10
Input
Coupling pin
Coupling pin
Output
To be grounded
Case ground
4
2,3,5,10
8
7
6
Please read
cautions and warnings and
important notes
at the end of this document.
2
April 08, 2009
SAW Components
SAW band–stop filter
Data sheet
Characteristics (including losses in the matching network)
Temperature range for specification:
Terminating source impedance:
Terminating load impedance:
T = +25 ˚C
±
2 ˚C
Z
S
=
50
Ω
and matching network
Z
L
=
50
Ω
and matching network
min.
Nominal center frequency
f
N
α
min
—
α
max
—
—
α
90.00
824.00
898.00
1427.90
1749.90
1920.00
... 222.00 MHz
... 840.00 MHz
... 925.00 MHz
... 1452.90 MHz
... 1784.90 MHz
... 1980.00 MHz
∆τ
770.00 MHz
—
7
—
15.0
40.0
44.0
48.0
45.0
46.0
16.0
42.0
46.0
58.0
50.0
51.0
—
—
—
—
—
—
1.5
3.3
1.8
3.5
0.9
1.1
—
typ.
@ 25 ˚C
832.0
911.5
max.
—
B8780
832.0 / 911.5 MHz
MHz
Minimum insertion attenuation
470.00 ...
770.00 MHz
dB
Maximum insertion attenuation
470.00 ...
710.00 ...
Attenuation
710.00 MHz
770.00 MHz
dB
dB
dB
dB
dB
dB
dB
dB
Group delay ripple
(p-p)
470.00 ...
ns
Matching network
(element values depend on PCB layout)
L
p2
L
s1
9
8
7
6
C
s4
L
s3
L
s1
= 18 nH
L
p2
= 33 nH
L
s3
= 15 nH
C
s4
= 0.9 pF
Q factor of inductors:
40 @ 770 MHz
Please read
cautions and warnings and
important notes
at the end of this document.
3
April 08, 2009
SAW Components
SAW band–stop filter
Data sheet
Characteristics (including losses in the matching network)
Temperature range for specification:
Terminating source impedance:
Terminating load impedance:
T = –30 ˚C to +85 ˚C
Z
S
=
50
Ω
and matching network
Z
L
=
50
Ω
and matching network
min.
Nominal center frequency
f
N
α
min
—
α
max
—
—
α
90.00
824.00
898.00
1427.90
1749.90
1920.00
... 222.00 MHz
... 840.00 MHz
... 925.00 MHz
... 1452.90 MHz
... 1784.90 MHz
... 1980.00 MHz
∆τ
770.00 MHz
—
7
—
14.0
38.0
40.0
48.0
45.0
46.0
16.0
42.0
46.0
58.0
50.0
51.0
—
—
—
—
—
—
1.5
3.3
2.0
3.6
0.9
1.1
—
typ.
@ 25 ˚C
832.0
911.5
max.
—
B8780
832.0 / 911.5 MHz
MHz
Minimum insertion attenuation
470.00 ...
770.00 MHz
dB
Maximum insertion attenuation
470.00 ...
710.00 ...
Attenuation
710.00 MHz
770.00 MHz
dB
dB
dB
dB
dB
dB
dB
dB
Group delay ripple
(p-p)
470.00 ...
ns
Matching network
(element values depend on PCB layout)
L
p2
L
s1
9
8
7
6
C
s4
L
s3
L
s1
= 18 nH
L
p2
= 33 nH
L
s3
= 15 nH
C
s4
= 0.9 pF
Q factor of inductors:
40 @ 770 MHz
Please read
cautions and warnings and
important notes
at the end of this document.
4
April 08, 2009
SAW Components
SAW band–stop filter
Data sheet
B8780
832.0 / 911.5 MHz
Maximum ratings
Operable temperature range T
Storage temperature range T
stg
DC voltage
ESD voltage
Source power at
824 ... 840 MHz
898 ... 925 MHz
1)
–30/+85
–40/+85
5
150
1)
˚C
˚C
V
V
machine model, 10 pulses
V
DC
V
ESD
P
IN
24
dBm
peak power of (W–)CDMA signal
acc. to JESD22-A115A (machine model), 10 negative & 10 positive pulses.
Transfer function
Please read
cautions and warnings and
important notes
at the end of this document.
5
April 08, 2009
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