SAW Components
IF Filter for Quasi/Split Sound Applications
Data Sheet
Characteristics of picture channel
Reference temperature:
Terminating source impedance:
Terminating load impedance:
M 3654 K
45,75 MHz
T
A
= 25 (45)˚C
Z
S
= 50
Ω
Z
L
= 2 kΩ || 3 pF
min.
typ.
13,0
max.
14,5
dB
Insertion attenuation
Reference level for the
following data
α
44,06 (44,00) MHz
11,5
Relative attenuation
α
rel
Picture carrier
45,81 (45,75) MHz
Color carrier
42,23 (42,17) MHz
Sound carrier
41,31 (41,25) MHz
Adjacent picture carrier
39,81 (39,75) MHz
Adjacent sound carrier
47,31 (47,25) MHz
Lower sidelobe
35,06 ... 39,81 (35,00 ... 39,75) MHz
Upper sidelobe
47,31 ... 55,06 (47,25 ... 55,00) MHz
Reflected wave signal suppression
1,2
µs
... 6,0
µs
after main pulse
(test pulse 250 ns,
carrier frequency 44,06 MHz)
Feedthrough signal suppression
1,2
µs
... 1,1
µs
before main pulse
(test pulse 250 ns,
carrier frequency 44,06 MHz)
Group delay predistortion
(reference frequency 45,81 MHz)
42,23 (42,17) MHz
Impedance
at 44,06 MHz
Input:
Z
IN
=
R
IN
||
C
IN
Output:
Z
OUT
=
R
OUT
||
C
OUT
Temperature coefficient of frequency
5,3
–0,1
25,0
45,0
44,0
37,0
37,0
6,0
0,9
39,0
56,0
51,0
41,0
42,0
6,7
1,9
—
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
42,0
52,0
—
dB
—
50,0
—
dB
—
—
—
–40
1,2 ||12,4
1,2 || 3,5
–72
—
—
—
—
ns
kΩ || pF
kΩ || pF
ppm/K
TC
f
—
3
Mar 31, 2006
EPCOS [ EPCOS ]
