B4935 datasheet(3/6 Pages) EPCOS

3 / 6 page

Sep 23, 2002

SAW Components

B4935

220,38 MHz

Low Loss Filter for Mobile Communication

Data Sheet

Characteristics single-ended/balanced

Operating temperature:

-30 ˚C to +80 ˚C

Terminating source impedance:

ZS = 1050 Ω || 63 nH

Terminating load impedance:

ZL = 610 Ω || 60 nH

1) Temperature dependence of fc: fc(T) = fc(T0)(1 + TCf(T – T0)2)

min.

typ.

max.

Nominal frequency

—

220,38

—

MHz

Insertion attenuation at fN

—

8,2

9,5

(including loss in matching network without loss

in baluns)

Amplitude ripple (p-p)

∆α

fN – 0,30 ... fN + 0,30

MHz

—

1,2

Phase linearity

∆φ

(rms deviation)

fN – 0,63 ... fN + 0,63

MHz

—

2,3

3,2

Relative attenuation (relative to

fN)

rel

fN – 0,63 ... fN + 0,63

MHz

—

2,2

4,0

fN – 100,0 ... fN – 50,0

MHz

60,0

73,0

—

fN – 50,0 ... fN – 30,0

MHz

50,0

70,0

—

fN – 30,0 ... fN – 10,0

MHz

40,0

62,0

—

fN – 10,0 ... fN – 1,25

MHz

35,0

39,0

—

fN – 1,25 MHz

45,0

—

fN + 1,25 MHz

45,0

—

fN + 1,25 ... fN + 10,0 MHz

35,0

41,0

—

fN + 10,0 ... fN + 30,0

MHz

40,0

62,0

—

fN + 30,0 ... fN + 50,0

MHz

50,0

70,0

—

fN + 50,0 ... fN+100,0

MHz

60,0

73,0

—

Temperature coefficient of frequency 1)

TCf

—

–0,036

—

ppm/K2

Frequency inversion point

—30

—

˚C

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