B39251-B4812-Z710 EPCOS [EPCOS], B39251-B4812-Z710 Datasheet - Page 3

• Manufacturer Part Number: B39251-B4812-Z710
• Description: SAW Components Low-Loss Filter 246,01 MHz
• Manufacturer: EPCOS [EPCOS]

Data Sheet
Characteristics
Reference temperature:
Terminating source impedance:
Terminating load impedance:
Nominal frequency
Minimum insertion attenuation
Amplitude ripple (p-p)
Group delay ripple (p-p)
Relative attenuation (relative to
Impedance at f
Temperature coefficient of frequency
Frequency inversion point
Test matching network to 50
1)
SAW Components
Low-Loss Filter
Temperature dependence of f
(including loss in matching coils)
f
f
f
f
f
f
f
f
f
f
f
f
f
f
N
N
N
N
N
N
N
N
N
N
N
N
N
N
- 67,5 kHz
- 80,0 kHz
- 50,0 kHz
- 80,0 kHz
- 25,00 MHz ...
- 3,00 MHz
- 1,60 MHz
- 0,60 MHz
- 0,40 MHz
+ 0,20 MHz
+ 0,40 MHz
+ 0,60 MHz
+ 1,60 MHz
+ 3,00 MHz
N
Input:
Output: Z
Z
...
...
...
...
...
...
...
...
...
...
...
...
...
IN
OUT
= R
= R
f
f
f
f
f
f
f
f
f
f
f
f
f
f
c
N
N
N
N
N
N
N
N
N
N
N
N
N
N
:
(element values depend on PCB layout):
+ 67,5 kHz
+ 80,0 kHz
+ 50,0 kHz
+ 80,0 kHz
- 3,00 MHz
- 1,60 MHz
- 0,60 MHz
- 0,40 MHz
- 0,20 MHz
+ 0,40 MHz
+ 0,60 MHz
+ 1,60 MHz
+ 3,00 MHz
+ 25,00 MHz
min
IN
OUT
f
c
)
( T ) = f
|| C
|| C
1)
IN
OUT
c
( T
T
Z
Z
S
L
0
3
)(1 + TC
= 25 ˚C
= 700 Ohm || -2,6 pF
= 700 Ohm || -2,6 pF
f
TC
T
N
min
rel
0
Jul 11, 2003
f
f
( T – T
min.
50
48
38
28
28
38
48
50
—
—
—
—
—
—
—
—
—
2,0
8
8
0
)
2
)
700 || 2,6
700 || 2,6
– 0,036
246,01
typ.
60
60
50
40
14
14
40
50
60
60
25
3,2
0,6
0,7
0,5
1,2
C
L
L
C
s2
s3
p1
p4
max.
246,01 MHz
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
= 1,8 pF
= 56 nH
= 56 nH
= 1,8 pF
5,0
2,0
3,0
1,5
3,0
B4812
MHz
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
ppm/K
˚C
s
s
|| pF
|| pF
2