SAW Components
IF Filter for Intercarrier / Multistandard Applications
Data Sheet
Characteristics in M/N mode (switching pin 2 connected to pin 1)
Reference temperature:
Terminating source impedance:
Terminating load impedance:
K 7253 M
38,00 MHz
T
A
=
Z
S
=
Z
L
=
25 ˚C
50
Ω
2 kΩ
||
3 pF
min.
typ.
17,0
max.
18,5
dB
Insertion attenuation
Reference level for the
following data
Relative attenuation
Picture carrier
Color carrier
Sound carrier
Adjacent picture carrier
Adjacent sound carrier
Lower sidelobe
Upper sidelobe
α
36,50 MHz
15,5
α
rel
38,00
34,42
33,50
32,00
39,50
25,00 ..... 32,00
39,50 ..... 45,00
MHz
MHz
MHz
MHz
MHz
MHz
MHz
5,2
2,8
18,3
38,0
36,0
36,0
31,0
6,2
3,8
19,8
46,0
43,0
42,0
37,0
7,2
4,8
21,3
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
Reflected wave signal suppression
1,2
µs
... 6,0
µs
after main pulse
(test pulse 250 ns,
carrier frequency 36,50 MHz)
Feedthrough signal suppression
1,2
µs
... 1,1
µs
before main pulse
(test pulse 250 ns,
carrier frequency 36,50 MHz)
Group delay predistortion
(reference frequency 38,00 MHz)
34,42 MHz
Impedance
at 36,50 MHz
Input:
Z
IN
=
R
IN
||
C
IN
Output:
Z
OUT
=
R
OUT
||
C
OUT
Temperature coefficient of frequency
∆τ
42,0
51,0
—
dB
50,0
56,0
—
dB
—
–50
—
ns
—
—
1,2 ||18,9
2,5 || 3,9
–72
—
—
—
kΩ || pF
kΩ || pF
ppm/K
TC
f
—
4
Jan 27, 2003
EPCOS [ EPCOS ]
