X7001L datasheet(3/6 Pages) EPCOS

3 / 6 page

May 08, 2001

SAW Components

X 7001 L

30,72 MHz

IF Bandpass Filter

Data Sheet

Characteristics

Reference temperature:

TA = 25 ˚C

Terminating source impedance:

ZS = 150 Ω

Terminating load impedance:

ZL = 1 kΩ

min.

typ.

max.

Center frequency

—

30,72

—

MHz

(center between 3 dB points)

Insertion attenuation

Reference level for the

30,72 MHz

19,3

20,8

22,3

following data

Pass bandwidth

rel ≤3dB

B3dB

—

1,6

—

MHz

rel ≤20 dB

B20dB

—

2,4

—

MHz

rel ≤30 dB

B30dB

—

2,6

—

MHz

Relative attenuation

rel

Lower sidelobe

22,00 ... 27,92 MHz

40,0

47,0

—

27,92 ... 28,82 MHz

37,0

44,0

—

Lower sidelobe

32,62 ... 42,00 MHz

40,0

47,0

—

Reflected wave signal suppression

1,6

µs ... 6,0 µs after main pulse

38,0

45,0

—

(test pulse 250 ns,

carrier frequency 30,72 MHz)

Group delay ripple (p–p)

∆τ

Aperture 50 kHz

29,95 ... 31,49 MHz

—

Impedance at 30,72 MHz

Input:

ZIN

RIN

CIN

—

2,0 || 19,8

—

Ω || pF

Output:

ZOUT = ROUT || COUT

—

2,5 || 10,1

—k

Ω || pF

Temperature coefficient of frequency

TCf

—

–18

—

ppm/K

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