X6872D datasheet(3/6 Pages) EPCOS

3 / 6 page

Nov 18, 2003

SAW Components

X6872D

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 10 dB points)

Insertion attenuation

Reference level for the

36,13 MHz

18,5

20,0

21,5

following data

Pass bandwith

rel ≤3dB

B3dB

—

6,9

—

MHz

rel ≤30 dB

B30dB

—

8,5

—

MHz

Relative attenuation

rel

33,08 MHz

—

0,5

—

39,17 MHz

—

0,6

—

32,63 MHz

—

3,6

—

39,63 MHz

—

3,8

—

Lower sidelobe

25,00 ... 31,65 MHz

38,0

46,0

—

Upper sidelobe

40,65 ... 45,00 MHz

37,0

42,0

—

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

32,63 ...

39,63 MHz

—

Impedance at 36,13 MHz

Input:

ZIN

RIN

CIN

—

3,4 ||13,3

—

Ω || pF

Output:

ZOUT = ROUT || COUT

—

2,2 || 4,3

—k

Ω || pF

Temperature coefficient of frequency

TCf

—

–72

—

ppm/K

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