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3Nov 10, 2003
SAW Components K 9355 D
38,00 MHzIF Filter for Audio Applications
Data Sheet
Characteristics
Reference temperature:
T
A= 25 ˚C
Terminating source impedance:
Z
S= 50 Ω
Terminating load impedance:
Z
L= 2 kΩ || 3 pF
min. typ. max.
Insertion attenuation α
Reference level for the 31,50 MHz 11,3 12,8 14,3 dB
following data
Relative attenuation αrel
Sound carrier 32,00 MHz –1,6 –0,6 0,4 dB
32,50 MHz 0,6 1,6 2,6 dB
Picture carrier 38,00 MHz 44,0 54,0 — dB
Color carrier 33,57 MHz 30,0 40,0 — dB
Adjacent picture carrier 30,00 MHz 45,0 60,0 — dB
31,00 MHz — 6,6 — dB
Adjacent sound carrier 39,50 MHz 45,0 55,0 — dB
40,00 MHz 45,0 55,0 — dB
40,50 MHz 45,0 59,0 — dB
Lower sidelobe 25,00 ... 30,00 MHz 40,0 45,0 — dB
Upper sidelobe 38,00 ... 45,00 MHz 40,0 46,0 — dB
Group delay ripple (p-p) ∆τ
31,00 ... 32,50 MHz —50—ns
Impedance at 31,50 MHz
Input:
Z
IN =
R
IN ||
C
IN — 1,2 ||15,0 — kΩ || pF
Output:
Z
OUT =
R
OUT ||
C
OUT —2,0 || 3,9 —kΩ || pF
Temperature coefficient of frequency
TC
f— –72 — ppm/K