M1871M datasheet(3/6 Pages) EPCOS

3 / 6 page

Mar 31, 2006

SAW Components

M 1871 M

45,75 MHz

IF Filter for Intercarrier Applications

Data Sheet

Characteristics

Reference temperature:

TA = 25 (45) ˚C

Terminating source impedance:

ZS = 50 Ω

Terminating load impedance:

ZL = 2 kΩ || 3 pF

min.

typ.

max.

Insertion attenuation

Reference level for the

44,06 (44,00) MHz

11,2

12,7

14,2

following data

Relative attenuation

rel

Picture carrier

45,81 (45,75) MHz

5,0

6,0

7,0

Color carrier

42,23 (42,17) MHz

3,3

4,3

5,3

Sound carrier

41,31 (41,25) MHz

15,6

17,1

18,6

Adjacent picture carrier

39,81 (39,75) MHz

48,0

62,0

—

Adjacent sound carrier

47,31 (47,25) MHz

40,0

47,0

—

Lower sidelobe

35,06 ... 39,81 (35,00 ... 39,75) MHz

36,0

42,0

—

Upper sidelobe

47,31 ... 55,06 (47,25 ... 55,00) MHz

35,0

41,0

—

Reflected wave signal suppression

1,0

µs ... 6,0 µs after main pulse

42,0

52,0

—

(test pulse 250 ns,

carrier frequency 44,06 MHz)

Feedthrough signal suppression

0,9

µs ... 0,8 µs before main pulse

50,0

56,0

—

(test pulse 250 ns,

carrier frequency 44,06 MHz)

Group delay ripple (p-p)

∆τ

—50

—

Impedance at 44,06 MHz

Input:

ZIN

RIN

CIN

—

1,6 || 8,4

—

Ω || pF

Output:

ZOUT = ROUT || COUT

—

1,1 || 3,6

—k

Ω || pF

Temperature coefficient of frequency

TCf

—

–72

—

ppm/K

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