K7254M View Datasheet(PDF) - EPCOS AG
Part Name
Description
Manufacturer
K7254M Datasheet PDF : 9 Pages
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SAW Components
K 7254 M
IF Filter for Intercarrier / Multistandard Applications
38,00 MHz
Data Sheet
Characteristics in B/G, D/K mode (switching input pin 2 connected to ground)
Reference temperature:
Terminating source impedpulseance:
Terminating load impedance:
TA =
ZS =
ZL =
25 ˚C
50 Ω
2 kΩ || 3 pF
Insertion attenuation
Reference level for the
following data
α
36,50 MHz
min.
14,3
typ.
max.
15,8
17,3 dB
Relative attenuation
Picture carrier
Color carrier
Sound carrier
Adjacent picture carrier
Adjacent sound carrier
Lower sidelobe
Upper sidelobe
αrel
38,00 MHz
33,57 MHz
31,50 MHz
32,50 MHz
30,00 MHz
31,00 MHz
39,50 MHz
40,50 MHz
25,00 ..... 29,20 MHz
39,50 ..... 45,00 MHz
5,2
6,2
0,2
1,2
46,0
63,0
36,0
48,0
44,0
55,0
42,0
55,0
40,0
51,0
40,0
53,0
42,0
51,0
34,0
39,0
7,2 dB
2,2 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 36,50 MHz)
42,0
50,0
— dB
Feedthrough signal suppression
1,2 µs ... 1,1 µs before main pulse
(test pulse 250 ns,
carrier frequency 36,50 MHz)
50,0
56,0
— dB
Group delay predistortion
(reference frequency 38,00 MHz)
∆τ
33,57 MHz
—
–60
— ns
Impedance at 36,50 MHz
Input: ZIN = RIN || CIN
Output: ZOUT = ROUT || COUT
Temperature coefficient of frequency
TCf
—
1,1 ||18,4
— kΩ || pF
—
1,5 || 4,5
— kΩ || pF
—
-72
— ppm/K
3 Jan 27, 2003
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