SAW Components
IF Filter for Intercarrier Applications
Data Sheet
Characteristics
Reference temperature:
Terminating source impedance:
Terminating load impedance:
G 1963 M
38,90 MHz
T
A
= 25 ˚C
Z
S
= 50
Ω
Z
L
= 2 kΩ || 3 pF
min.
typ.
14,2
max.
15,7
dB
Insertion attenuation
Reference level for the
following data
Relative attenuation
Picture carrier
Color carrier
α
37,40 MHz
12,7
α
rel
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
4,9
–0,4
—
19,1
44,0
42,0
42,0
42,0
45,0
42,0
41,0
36,0
5,9
0,6
3,2
20,1
55,0
46,0
46,0
50,0
53,0
49,0
45,0
40,0
6,9
1,6
—
21,1
—
—
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
38,90
34,47
34,15
Sound carrier
33,40
Adjacent picture carrier UHF
30,90
Adjacent picture carrier
VHF
31,90
32,40
40,15
Adjacent sound carrier VHF
40,40
Adjacent sound carrier
UHF
41,40
Lower sidelobe
25,00 ... 32,40
Upper sidelobe
40,40 ... 45,00
Reflected wave signal suppression
1,1
µs
... 6,0
µs
after main pulse
(test pulse 250 ns,
carrier frequency 37,40 MHz)
Feedthrough signal suppression
1,2
µs
... 1,1
µs
before main pulse
(test pulse 250 ns,
carrier frequency 37,40 MHz)
Group delay predistortion
(reference frequency 38,90 MHz)
44,0
50,0
—
dB
50,0
56,0
—
dB
∆τ
37,00 MHz
34,47 MHz
—
—
—
—
–85
0
1,8 ||14,8
1,6 || 5,3
–72
—
—
—
—
—
ns
ns
kΩ || pF
kΩ || pF
ppm/K
Impedance
at 37,40 MHz
Input:
Z
IN
=
R
IN
||
C
IN
Output:
Z
OUT
=
R
OUT
||
C
OUT
Temperature coefficient of frequency
TC
f
—
3
May 08, 2001
EPCOS [ EPCOS ]
