J3353K Datasheet, PDF (3/8 Pages) EPCOS – IF Filter for Quasi/Split Sound Applications 38,90 MHz

SAW Components
IF Filter for Quasi/Split Sound Applications
Data Sheet
Characteristics of picture channel
Reference temperature:
Terminating source impedance:
Terminating load impedance:
T_A = 25 ˚C
Z_S = 50 Ω
Z_L = 2 kΩ || 3 pF
Insertion attenuation
Reference level for the
following data
α
37,40 MHz
min.
12,9
J 3353 K
38,90 MHz
typ.
max.
14,4
15,9 dB
Relative attenuation
Picture carrier
Color carrier
Sound carrier
Adjacent picture carrier
Adjacent sound carrier
Lower sidelobe
Upper sidelobe
25,00
40,90
α_rel
38,90 MHz
34,47 MHz
32,90 MHz
32,35 MHz
30,90 MHz
30,40 MHz
31,40 MHz
40,90 MHz
40,35 MHz
... 30,90 MHz
... 45,00 MHz
5,0
6,0
–0,6
0,4
40,0
52,0
44,0
56,0
50,0
62,0
48,0
60,0
48,0
60,0
45,0
55,0
43,0
53,0
46,0
54,0
39,0
45,0
7,0 dB
1,4 dB
— dB
— dB
— 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 37,40 MHz)
42,0
55,0
— dB
Feedthrough signal suppression
1,2 µs ... 1,1 µs before main pulse
(test pulse 250 ns,
carrier frequency 37,40 MHz)
50,0
56,0
— dB
Group delay predistortion
(reference frequency 38,90 MHz)
∆τ
38,90 MHz
34,47 MHz
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
—
0
—
–50
— ns
— ns
—
1,2 || 24,0 — kΩ || pF
—
2,5 || 3,6
— kΩ || pF
—
–72
— ppm/K
3 Mar 31, 2006