X6892D datasheet(3/6 Pages) EPCOS

3 / 6 page

Dec 08, 2003

SAW Components

X 6892 D

44,00 MHz

Bandpass Filter

Data Sheet

Characteristics

Reference temperature:

TA = 25 (50) ˚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

44,08 (44,00) MHz

12,5

14,0

15,5

following data

Pass bandwith

rel ≤ 3dB

B3dB

—

5,6

—

MHz

rel ≤ 30 dB

B30dB

—

7,3

—

MHz

Amplitude ripple

∆α

41,75 ... 46,41 (41,67 ... 46,33 ) MHz

—

0,6

—

Relative attenuation

rel

Lower sidelobe

35,08 ... 38,08 (35,00 ... 38,00) MHz

42,0

48,0

—

38,08 ... 40,13 (38,00 ... 40,05) MHz

38,0

45,0

—

Upper sidelobe

48,03 ... 50,33 (47,95 ... 50,25) MHz

37,0

45,0

—

50,33 ... 55,08 (50,25 ... 55,00) MHz

41,0

50,0

—

Reflected wave signal suppression

1,1

µs ... 6,0 µs after main pulse

42,0

52,0

—

(test pulse 250 ns,

carrier frequency 44,08 MHz)

Feedthrough signal suppression

1,3

µs ... 1,2 µs before main pulse

50,0

56,0

—

(test pulse 250 ns,

carrier frequency 44,08 MHz)

Group delay ripple (p-p)

∆τ

41,75 ... 46,41 (41,67 ... 46,33) MHz

—

Impedance at 44,08 MHz

Input:

ZIN

RIN

CIN

—

1,5 ||15,4

—

Ω || pF

Output:

ZOUT = ROUT || COUT

—

1,3 || 4,6

—k

Ω || pF

Temperature coefficient of frequency

TCf

—

–72

—

ppm/K

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