B5068 datasheet(3/8 Pages) EPCOS

3 / 8 page

Jul 18, 2007

B5068

173.8 MHz

SAW Components

SAW IF filter

Data sheet

Please read

cautions and warnings and

important notes at the end of this document.

Characteristics

Operating temperature range:

25 ˚C

Terminating source impedance:

ZS =50 Ω and matching network

Terminating load impedance:

ZL =50 Ω and matching network

min.

typ.

@ 25 ˚C

max.

Nominal frequency

—

173.8

—

MHz

Minimum insertion attenuation

min

—

9.3

11.0

(including matching network)

Passband width

rel ≤ 1.5 dB

B1.5dB

20.3

22.9

—

MHz

rel ≤ 3.0 dB

B3.0dB

22.0

24.0

—

MHz

rel ≤ 35 dB

B35dB

—

28.6

31.0

MHz

rel ≤ 40 dB

B40dB

—

29.2

41.0

MHz

Amplitude ripple (p-p)

∆α

fN ± 11.0 MHz

—

1.0

1.5

Phase ripple (p-p)

∆ϕ

fN ± 11.0 MHz

—

deg

Group delay ripple (p-p)

∆τ

fN ± 11.0 MHz

—

100

Absolute group delay (at fN)

—

640

—

Relative attenuation (relative to

min)

rel

80.0 MHz ... fN − 19.1 MHz

—

fN − 19.1 MHz ... fN − 14.6 MHz

—

fN + 14.6 MHz ... fN + 19.1 MHz

—

fN + 19.1 MHz ... fN + 26.1 MHz

—

fN + 26.1 MHz ... 1 GHz

—

Temperature coefficient of frequency

TCf

—

–87

—

ppm/K

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