SAW Components
SAW bandpass Filter
Low loss bandpass filter for terrestrial TV applications
Series/type:
Ordering code:
Date:
Version:
X 7550 M
B39440-X7550-M100
January 03, 2008
2.0
©
EPCOS AG 2008. 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 bandpass Filter
Data Sheet
Application
s
s
s
s
X 7550 M
44.00 MHz
IF filter for digital terrestrial TV
Usable bandwidth 5.7 MHz
Low insertion attenuation
Balanced input option
Features
s
s
s
s
Plastic package
SIP5K
Approximate weight 1.0 g
RoHS compatible
Tinned CuFe alloy terminals
Pin configuration
s
s
s
s
s
1
2
3
4
5
Input
Input - ground
Chip carrier - ground
Output
Output
Please read
cautions and warnings and
important notes
at the end of this document.
2
January 03, 2008
SAW Components
SAW bandpass Filter
Data Sheet
Characteristics
Reference temperature:
Terminating source impedance:
Terminating load impedance:
X 7550 M
44.00 MHz
T
A
= 25 (45) ˚C
Z
S
= 50
Ω
and matching network
Z
L
= 2 kΩ || 3 pF and matching network
min.
typ.
@ 25 ˚C
7.0
max.
Insertion attenuation
α
Reference level for
44.06(44.00) MHz
the following data
Amplitude ripple
(p-p)
∆α
41.66 ... 46.46 (41.60 ... 46.40) MHz
Pass bandwidth
α
rel
< 3 dB
Relative attenuation
39.81 (39.75)
41.26 (41.20)
46.86 (46.80)
47.31 (47.25)
MHz
MHz
MHz
MHz
5.0
9.0
dB
—
1.5
—
dB
B
3dB
α
rel
—
5.7
—
MHz
31.0
—
—
20.0
30.0
30.0
36.0
2.0
2.4
28.0
35.0
36.0
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
Lower sidelobe
35.06 ... 40.41 (35.00 ... 40.35) MHz
Upper sidelobe
47.71 ... 55.06 (47.65 ... 55.00) MHz
Reflected wave signal suppression
1.3
µs
... 6.0
µs
after main pulse
(test pulse 250 ns,
carrier frequency 44.06 MHz)
Group delay ripple
(p-p)
41.66 ... 46.46 (41.60 ... 46.40) MHz
Impedance
at 44.06 MHz
Input: Z
IN
= R
IN
|| C
IN
Output: Z
OUT
= R
OUT
|| C
OUT
Temperature coefficient of frequency
TC
f
∆t
24.0
32.0
—
dB
—
—
—
—
190
0.9 || 20.2
8.3 || 3.7
–72
—
—
—
—
ns
kΩ || pF
kΩ || pF
ppm/K
Please read
cautions and warnings and
important notes
at the end of this document.
3
January 03, 2008
SAW Components
SAW bandpass Filter
Data Sheet
X 7550 M
44.00 MHz
Cs1
Matching network
Lp1
Cs1
Maximum ratings
Operable temperature range
Storage temperature range
DC voltage
AC voltage
T
T
stg
V
DC
V
pp
–25 / +65 ˚C
–40 / +85 ˚C
5
V
10
V
Lp2
C
s1
=12 pF
L
p1
= 560 nH
L
p2
=1800 nH
between any terminals
Please read
cautions and warnings and
important notes
at the end of this document.
4
January 03, 2008
SAW Components
SAW bandpass Filter
Data Sheet
Frequency response
X 7550 M
44.00 MHz
Please read
cautions and warnings and
important notes
at the end of this document.
5
January 03, 2008
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