K2971M Datasheet, PDF (3/6 Pages) List of Unclassifed Manufacturers – IF Filter for Intercarrier Applications

SAW Components
IF Filter for Intercarrier Applications
Data Sheet
Characteristics
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.
14,8
K 2971 M
38,90 MHz
typ.
max.
16,3
17,8 dB
Relative attenuation
Picture carrier
Color carrier
Sound carrier
Adjacent picture carrier
Adjacent sound carrier
Lower sidelobe
Upper sidelobe
25,00
40,40
α_rel
38,90 MHz
34,47 MHz
32,40 MHz
33,40 MHz
30,90 MHz
40,40 MHz
41,40 MHz
... 30,90 MHz
... 45,00 MHz
4,8
5,8
6,8 dB
-0,3
0,7
1,7 dB
17,1
18,6
20,1 dB
17,7
19,2
— dB
46,0
56,0
— dB
43,0
52,0
— dB
42,0
51,0
— dB
44,0
51,0
— dB
40,0
46,0
— 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
53,0
— 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
36,50 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
—
–70
—
20
— ns
— ns
—
2,0 ||12,1 — kΩ || pF
—
3,0 || 2,8
— kΩ || pF
—
–72
— ppm/K
3 May 08, 2001