b39570-x6940-n201 EPCOS AG, b39570-x6940-n201 Datasheet - Page 3

• Manufacturer Part Number: b39570-x6940-n201
• Description: 57,00 Mhz Bandpass Filter
• Manufacturer: EPCOS AG

Data Sheet
Characteristics
Reference temperature:
Terminating source impedance:
Terminating load impedance:
Insertion attenuation
Reference level for the
following data
Amplitude ripple (p-p)
Relative attenuation
Lower sidelobe
Upper sidelobe
Reflected wave signal suppression
1,5 s ... 6,0 s after main pulse
(test pulse 250 ns, carrier frequency 57,02 MHz)
Group delay ripple (p-p)
Impedance at 57,02 MHz
Temperature coefficient of frequency
Matching network:
SAW Components
Bandpass Filter
54,52 ... 59,02 (54,50 ... 59,00) MHz
45,02 ... 50,02 (45,00 ... 50,00) MHz
50,02 ... 52,77 (50,00 ... 52,75) MHz
62,40 ... 70,02 (62,38 ... 70,00) MHz
54,52 ... 59,02 (54,50 ... 59,00) MHz
Input:
Output: Z
Z
IN
OUT
57,02 (57,00) MHz
52,77 (52,75) MHz
54,12 (54,10) MHz
59,52 (59,50) MHz
60,27 (60,25) MHz
62,40 (62,38) MHz
64,77 (64,75) MHz
= R
= R
IN
OUT
|| C
|| C
IN
OUT
T
Z
Z
A
S
L
3
= 25 (45) ˚C
= 50
= 2 k || 3 pF and matching network
TC
rel
May 18, 2005
f
min.
13,1
38,0
30,0
41,0
43,0
38,0
34,0
36,0
42,0
—
—
—
—
—
1,6
1,9
1,3||23,5
4,0|| 6,3
–18
typ.
14,6
44,0
38,0
47,0
49,0
43,0
39,0
42,0
52,0
40
0,5
2,8
3,1
L
p1
= 820 nH
max.
16,1
—
—
—
—
—
—
—
—
—
—
—
—
—
4,0
4,3
57,00 MHz
X 6940 D
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
ns
k || pF
k || pF
ppm/K