X6959D datasheet(3/6 Pages) EPCOS

3 / 6 page

Mar 04, 2005

SAW Components

X 6959 D

44,00 MHz

Bandpass Filter

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.

Center frequency

—

44,00

—

MHz

(center between 10 dB points)

Insertion attenuation

Reference level for the

44,00 MHz

13,3

14,8

16,3

following data

Pass bandwith

rel ≤ 3dB

B3dB

—

1,7

—

MHz

rel ≤ 6dB

B6dB

—

2,0

—

MHz

rel ≤ 30 dB

B30dB

—

2,9

—

MHz

Relative attenuation

rel

Lower sidelobe

35,00 ... 41,30 MHz

38,0

43,0

—

41,30 ... 42,30 MHz

36,0

43,0

—

Upper sidelobe

45,80 ... 47,20 MHz

33,0

39,0

—

47,20 ... 55,00 MHz

39,0

45,0

—

Group delay ripple (p-p)

∆τ

Aperture 50 kHz

43,00 ... 45,00 MHz

—

Impedance at 44,00 MHz

Input:

ZIN

RIN

CIN

—

1,8 ||12,8

—

Ω || pF

Output:

ZOUT = ROUT || COUT

—

0,9 || 3,8

—k

Ω || pF

Temperature coefficient of frequency

TCf

—

–72

—

ppm/K

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