X6865D datasheet(3/6 Pages) EPCOS

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Feb 03, 2004

SAW Components

X 6865 D

36,125 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

—

36,125

—

MHz

(center between 3 dB points)

Insertion attenuation

Reference level for the

36,13 MHz

16,1

17,6

19,1

following data

Pass bandwith

rel ≤3dB

B3dB

5,8

6,0

6,2

MHz

rel ≤30 dB

B30dB

7,4

7,6

7,8

MHz

Relative attenuation

rel

33,59 MHz

–1,1

0,1

1,3

38,65 MHz

–0,8

0,4

1,6

33,12 MHz

1,3

2,5

3,7

39,12 MHz

1,9

3,1

4,3

Lower sidelobe

25,00 ... 32,12 MHz

38,0

44,0

—

Upper sidelobe

40,12 ... 41,42 MHz

36,0

40,0

—

41,42 ... 45,00 MHz

38,0

45,0

—

Reflected wave signal suppression

1,3

µs ... 6,0 µs after main pulse

42,0

52,0

—

(test pulse 250 ns,

carrier frequency 36,13 MHz)

Feedthrough signal suppression

1,3

µs ... 1,2 µs before main pulse

50,0

56,0

—

(test pulse 250 ns,

carrier frequency 36,13 MHz)

Group delay ripple (p-p)

∆τ

33,12 ... 39,12 MHz

—

Impedance at 36,13 MHz

Input:

ZIN

RIN

CIN

—

2,2 ||15,3

—

Ω || pF

Output:

ZOUT = ROUT || COUT

—

1,4 || 5,6

—k

Ω || pF

Temperature coefficient of frequency

TCf

—

–72

—

ppm/K

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