SAW Components
IF Filter for Intercarrier Applications
Data Sheet
Characteristics
Reference temperature:
Terminating source impedance:
Terminating load impedance:
J 1951 M
39,50 MHz
T
A
= 25 ˚C
Z
S
= 50
Ω
Z
L
= 2 kΩ || 3 pF
min.
typ.
15,0
max.
16,5
dB
Insertion attenuation
Reference level for the
following data
Relative attenuation
Picture carrier
Color carrier
Sound carrier
Adjacent picture carrier
α
38,00 MHz
13,5
α
rel
39,50
35,07
33,50
31,50
31,00
32,00
40,95
41,50
25,00 ... 31,50
41,50 ... 45,00
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
4,8
2,8
21,1
48,0
45,0
45,0
36,0
44,0
44,0
36,0
5,8
3,8
22,1
60,0
52,0
52,0
42,0
54,0
50,0
40,0
6,8
4,8
23,1
—
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Adjacent sound carrier
Lower sidelobe
Upper sidelobe
Reflected wave signal suppression
1,0
µs
... 6,0
µs
after main pulse
(test pulse 250 ns,
carrier frequency 38,00 MHz)
Feedthrough signal suppression
0,9
µs
... 0,8
µs
before main pulse
(test pulse 250 ns,
carrier frequency 38,00 MHz)
Group delay ripple
(p-p)
Impedance
at 38,00 MHz
Input:
Z
IN
=
R
IN
||
C
IN
Output:
Z
OUT
=
R
OUT
||
C
OUT
Temperature coefficient of frequency
∆τ
44,0
52,0
—
dB
50,0
56,0
—
dB
—
—
—
40
2,0 ||10,0
2,2 || 4,5
–72
—
—
—
—
ns
kΩ || pF
kΩ || pF
ppm/K
TC
f
—
3
Mar 31, 2006
EPCOS [ EPCOS ]
