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SAW Components
IF Filter for Intercarrier Applications
Data Sheet
Characteristics
Reference temperature:
Terminating source impedance:
Terminating load impedance:
TA = 25 ˚C
ZS = 50 Ω
ZL = 2 kΩ || 3 pF
Insertion attenuation
Reference level for the
following data
α
37,40 MHz
min.
13,6
G 1961 M
38,90 MHz
typ. max.
15,1
16,6 dB
Relative attenuation
Picture carrier
Color carrier
Sound carrier
Adjacent picture carrier UHF
Adjacent picture carrier VHF
Adjacent sound carrier VHF
Adjacent sound carrier UHF
Lower sidelobe
25,00
Upper sidelobe
40,40
38,90 MHz
34,47 MHz
33,40 MHz
30,90 MHz
31,90 MHz
32,40 MHz
40,15 MHz
40,40 MHz
41,40 MHz
... 32,40 MHz
... 45,00 MHz
αrel
5,6 6,6
2,3 3,3
19,3 20,3
46,0 58,0
48,0 64,0
50,0 65,0
40,0 49,0
46,0 59,0
42,0 53,0
37,0 46,0
36,0 44,0
7,6 dB
4,3 dB
21,3 dB
— dB
— dB
— dB
— dB
— dB
— dB
— dB
— dB
Reflected wave signal suppression
1,3 µs ... 6,0 µs after main pulse
(test pulse 250 ns,
carrier frequency 37,40 MHz)
44,0 54,0
— 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
36,90 MHz
34,47 MHz
Impedance at 37,40 MHz
Input: ZIN = RIN || CIN
Output: ZOUT = ROUT || COUT
Temperature coefficient of frequency
TCf
— –90
— 95
— ns
— ns
— 1,7 ||13,0 — kΩ || pF
— 1,4 || 4,6 — kΩ || pF
— –72
— ppm/K
3 Dec 02, 1999
