K2971M Ver la hoja de datos (PDF) - Unspecified

Número de pieza

componentes Descripción

Fabricante

K2971M

IF Filter for Intercarrier Applications

Unspecified 

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.

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

αrel

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: ZIN = RIN || CIN

Output: ZOUT = ROUT || COUT

Temperature coefficient of frequency

TCf

—

–70

—

20

— ns

— ns

—

2,0 ||12,1 — kΩ || pF

—

3,0 || 2,8

— kΩ || pF

—

–72

— ppm/K

3 May 08, 2001

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