SAW Components
SAW IF filter
Satellite radio
Series/type:
Ordering code:
Date:
Version:
B1709
B39805B1709H310
May 16, 2006
1.1
©
EPCOS AG 2006. 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 IF filter
Data sheet
Application
s
s
s
s
s
B1709
80.46 MHz
IF filter for digital radio
Usable bandwidth 3.7 MHz
Low insertion attenuation
Constant group delay
Unbalanced or balanced operation
Features
Package size 7.0 x 5.0 x 1.48 mm
3
Package code QCC12C
RoHS compatible
Approximate weight 0.20 g
Ceramic package for
Surface Mount Technology
(SMT)
s
Ni, gold-plated terminals
s
Electrostatic Sensitive Device
(ESD)
s
s
s
s
s
Pin configuration
s
s
s
s
s
s
4
6
10
12
3,9
1,2,7,8
Balanced input or input ground
Input
Balanced output or output ground
Output
Case – ground
To be grounded
6
10
4
12
3,9
Please read
cautions and warnings and
important notes
at the end of this document.
2
May 16, 2006
SAW Components
SAW IF filter
Data sheet
Characteristics
Temperature range for specification:
Terminating source impedance:
Terminating load impedance:
T = –40 ˚C to (+85 ˚C) +105 ˚C
Z
S
= 27
Ω
and matching network
Z
L
=
1 kΩ and matching network
min.
Nominal frequency
Minimum insertion attenuation
1)
Maximum voltage gain source – load
(V
L
/V
S
)
B1709
80.46 MHz
f
N
α
min
α
vgsl
∆α
—
—
–8.8
typ.
@ 25 ˚C
80.46
18.1
–7.3
max.
—
19.6
—
MHz
dB
dB
Amplitude ripple
(p-p)
f
N
±
1.84 MHz
Pass bandwidth
α
rel
≤
1.5 dB
α
rel
≤
3 dB
α
rel
≤
15 dB
α
rel
≤
30 dB
—
0.9
(1.3) 1.8
dB
B
1.5dB
B
3dB
B
15dB
B
30dB
—
—
—
—
4.3
4.6
5.5
6.1
—
—
6.0
6.5
MHz
MHz
MHz
MHz
Mean attenuation
(relative to
α
min
)
α
rel
Upper sidelobe 86.47 ...
91.53 MHz
Relative attenuation
(relative to
α
min
)
α
rel
Lower sidelobe 55.00 ...
67.00 MHz
67.00 ...
75.99 MHz
Upper sidelobe 85.21 ...
86.47 MHz
86.47 ...
91.53 MHz
91.53 ...
95.21 MHz
95.21 ... 105.00 MHz
Group delay ripple
(p–p)
∆τ
Aperture 50 kHz
f
N
±
1.84 MHz
Temperature coefficient of frequency
1)
50.0
54.0
—
dB
48.0
39.0
40.0
45.0
46.0
46.0
54.0
43.0
49.0
49.0
52.0
52.0
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
—
—
190
–18
—
—
ns
ppm/K
TC
f
Including losses in the matching network
Please read
cautions and warnings and
important notes
at the end of this document.
3
May 16, 2006
SAW Components
SAW IF filter
Data sheet
B1709
80.46 MHz
Matching network
1)
((based on four port measurement, quality factors Q
L
= 40, Q
C
= 90)
C
s1
L
s3
C
s1
= 7.5 pF
L
p2
C
p4
L
p2
= 240 nH
L
s3
= 200 nH
C
p4
= 15 pF
C
s1
L
s3
1) The input matching circuit has been designed as a power match of the filter’s input port to 175
Ω.
In a second step
it has been optimized in a narrow range in order to operate at 27
Ω
with optimum filter performance.
Please read
cautions and warnings and
important notes
at the end of this document.
4
May 16, 2006
SAW Components
SAW IF filter
Data sheet
Transfer function
B1709
80.46 MHz
Transfer function
(pass band)
Please read
cautions and warnings and
important notes
at the end of this document.
5
May 16, 2006
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