X6964M datasheet(3/6 Pages) EPCOS

3 / 6 page

Mar 31, 2006

SAW Components

X 6964 M

43,75 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

—

43,75

—

MHz

(center between 3 dB points)

Insertion attenuation

Reference level for the

43,81 (43,75) MHz

13,3

14,8

16,3

following data

Pass bandwith

rel ≤3dB

B3dB

—

6,0

—

MHz

rel ≤30 dB

B30dB

—

7,6

—

MHz

Relative attenuation

rel

41,28 (41,22) MHz

–0,8

0,2

1,2

46,34 (46,28) MHz

–0,7

0,3

1,3

40,81 (40,75) MHz

1,3

2,5

3,7

46,81 (46,75) MHz

1,6

2,8

4,0

40,31 (40,25) MHz

9,0

12,0

—

47,31 (47,25) MHz

9,0

13,0

—

39,81 (39,75) MHz

38,0

50,0

—

47,81 (47,75) MHz

38,0

52,0

—

Lower sidelobe

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

38,0

46,0

—

Upper sidelobe

47,81 ... 55,06 (47,75 ... 55,00) MHz

38,0

44,0

—

Reflected wave signal suppression

1,3

µs ... 6,0 µs after main pulse

42,0

52,0

—

(test pulse 250 ns,

carrier frequency 43,81 MHz)

Feedthrough signal suppression

1,3

µs ... 1,2 µs before main pulse

50,0

56,0

—

(test pulse 250 ns,

carrier frequency 43,81 MHz)

Group delay ripple (p-p)

∆τ

Aperture 50 kHz

40,81 ... 46,81 (40,75 ... 46,75) MHz

—

Impedance at 43,81 MHz

Input:

ZIN

RIN

CIN

—

1,1 ||16,4

—

Ω || pF

Output:

ZOUT = ROUT || COUT

—

1,1 || 5,0

—k

Ω || pF

Temperature coefficient of frequency

TCf

—

–72

—

ppm/K

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