X6965M datasheet(3/6 Pages) EPCOS

3 / 6 page

Mar 31, 2006

SAW Components

X 6965 M

44,00 MHz

Bandpass Filter

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.

Center frequency

—

44,00

—

MHz

(center between 3 dB points)

Insertion attenuation

Reference level for the

44,06 (44,00) MHz

12,9

14,4

15,9

following data

Pass bandwith

rel ≤3dB

B3dB

—

6,0

—

MHz

rel ≤30 dB

B30dB

—

7,6

—

MHz

Amplitude ripple

∆α

Aperture: 250 kHz

41,53

... 46,59 MHz

—

0,4

0,8

Relative attenuation

rel

41,53 (41,47) MHz

—

0,4

—

46,59 (46,53) MHz

—

0,4

—

41,06 (41,00) MHz

1,8

3,0

4,2

47,06 (47,00) MHz

1,5

2,7

3,9

47,31 (47,25) MHz

—

6,2

—

39,81 (39,75) MHz

40,0

52,0

—

Lower sidelobe

35,06 ... 39,46 (35,00 ... 39,40) MHz

44,0

50,0

—

39,46 ... 40,06 (39,40 ... 40,00) MHz

38,0

44,0

—

Upper sidelobe

48,06 ... 50,06 (48,00 ... 50,00) MHz

36,0

43,0

—

50,06 ... 55,06 (50,00 ... 55,00) MHz

42,0

48,0

—

Reflected wave signal suppression

1,3

µs ... 6,0 µs after main pulse

42,0

52,0

—

(test pulse 250 ns,

carrier frequency 44,06 MHz)

Feedthrough signal suppression

1,3

µs ... 1,2 µs before main pulse

50,0

56,0

—

(test pulse 250 ns,

carrier frequency 44,06 MHz)

Group delay ripple (p-p)

∆τ

Aperture 250 kHz

41,53 ...

46,59 MHz

—

Impedance at 44,06 MHz

Input:

ZIN

RIN

CIN

—

1,3 ||16,1

—

Ω || pF

Output:

ZOUT = ROUT || COUT

—

1,1 || 5,6

—k

Ω || pF

Temperature coefficient of frequency

TCf

—

–72

—

ppm/K

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