b39440-x6794-x400 EPCOS AG, b39440-x6794-x400 Datasheet - Page 3

• Manufacturer Part Number: b39440-x6794-x400
• Description: 44.00 Mhz Saw Bandpass Filter
• Manufacturer: EPCOS AG

Data Sheet
Characteristics
Reference temperature:
Terminating source impedance:
Terminating load impedance:
Please read cautions and warnings and
important notes at the end of this document.
Insertion attenuation
Reference level for
the following data
Amplitude ripple (p-p)
Relative attenuation
Lower sidelobe
Upper sidelobe
Reflected wave signal suppression
1.2 s ... 6.0 s after main pulse
(test pulse 250 ns,
carrier frequency 44.06 MHz)
Group delay ripple (p-p)
Impedance at 44.06 MHz
Temperature coefficient of frequency
SAW Components
SAW bandpass filter
41.66 ... 46.46 (41.60 ... 46.40) MHz
35.06 ... 38.80 (35.00 ... 38.74) MHz
38.80 ... 39.81 (38.74 ... 39.75) MHz
47.41... 50.11 (47.35 ... 50.05) MHz
50.11 ... 55.06 (50.05 ... 55.00) MHz
41.37 ... 46.75 (41.31 ... 46.69) MHz
Input:
Input:
Z
Z
IN
OUT
44.06 (44.00) MHz
39.81 (39.75) MHz
41.06 (41.00) MHz
41.37 (41.31) MHz
46.75 (46.69) MHz
47.06 (47.00) MHz
47.31 (47.25) MHz
= R
= R
IN
OUT
|| C
|| C
IN
OUT
TC
rel
T
Z
Z
A
S
L
f
3
= 25 (45) ˚C
= 50
= 2 k || 3 pF
July 17, 2009
min.
16.7
30.0
16.0
36.0
29.0
22.0
36.0
45.0
—
—
—
—
—
—
—
—
—
@ 25 ˚C
2.9 || 7.6
2.9 || 2.7
–72
typ.
18.2
44.0
21.0
42.0
35.0
28.0
41.0
55.0
50
0.8
7.3
2.0
2.9
9.3
max.
19.7
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
44.00 MHz
X 6794 X
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
ns
k || pF
k || pF
ppm/K