K2959M datasheet(3/6 Pages) EPCOS

3 / 6 page

Mar 31, 2006

SAW Components

K 2959 M

38,00 MHz

IF Filter for Intercarrier Applications

Data Sheet

Characteristics

Reference temperature:

TA = 25 ˚C

Terminating source impedance:

ZS = 50 Ω

Terminating load impedance:

ZL = 2 kΩ || 3 pF

min.

typ.

max.

Insertion attenuation

Reference level for the

36,50 MHz

16,5

18,0

19,5

following data

Relative attenuation

rel

Picture carrier

38,00 MHz

4,1

5,1

6,1

Color carrier

33,57 MHz

0,0

1,0

2,0

Sound carrier

31,50 MHz

17,9

19,4

—

32,50 MHz

15,5

17,0

18,5

Adjacent picture carrier

30,00 MHz

46,0

55,0

—

31,00 MHz

40,0

56,0

—

Adjacent sound carrier

39,50 MHz

42,0

52,0

—

40,50 MHz

43,0

54,0

—

Lower sidelobe

25,00

... 30,00 MHz

40,0

46,0

—

Upper sidelobe

39,50

... 45,00 MHz

35,0

41,0

—

Reflected wave signal suppression

1,1

µs ... 6,0 µs after main pulse

42,0

52,0

—

(test pulse 250 ns,

carrier frequency 36,50 MHz)

Feedthrough signal suppression

1,1

µs ... 1,0 µs before main pulse

50,0

56,0

—

(test pulse 250 ns,

carrier frequency 36,50 MHz)

Group delay ripple (p-p)

∆τ

—30

—

Impedance at 36,50 MHz

Input:

ZIN

RIN

CIN

—

3,0 ||10,8

—

Ω || pF

Output:

ZOUT = ROUT || COUT

—

3,6 || 2,7

—k

Ω || pF

Temperature coefficient of frequency

TCf

—

–72

—

ppm/K

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