U310 datasheet(3/7 Pages) EPCOS

3 / 7 page

Jun 13, 2002

SAW Components

B4847

360,00 MHz

Low-Loss Filter for Mobile Communication

Data Sheet

Characteristics

Ambient temperature:

= -20˚C to +75˚C

Terminating source impedance:

ZS = 340 Ω || -1,9 pF

Terminating load impedance:

ZL = 340 Ω || -1,9 pF

1) Temperature dependence of f

c:fc(T) = fc(T0)(1 + TCf(T – T0)

In the frequency range from 362,5 MHz to 364,0 MHz there exists one spurious response.

The minimum attenuation

rel of this spurious response is more than 48 dB.

min.

typ.

max.

Nominal frequency

—

360,00

—

MHz

(center frequency between 3 dB points)

Minimum insertion attenuation

min

(including loss in matching elements)

—

4,3

5,0

Amplitude ripple (p-p)

∆α

fN -67,7kHz .. fN+67,7 kHz

—

0,6

2,0

fN -80,0kHz .. fN+80,0 kHz

—

0,9

3,0

Passband width

rel ≤

3,0 dB

B3,0dB

—

315

—

kHz

Group delay ripple (p-p)

∆τ

fN -67,7 kHz .. fN+67,7 kHz

—

0,5

1,8

µs

Relative attenuation (relative to

min)

rel

fN ± 400 kHz ... fN ± 600 kHz

—

fN ± 600 kHz ... fN ± 800 kHz

—

fN ± 800 kHz ... fN ± 1,6 MHz

—

fN ± 1,6 MHz ... fN ± 5,0 MHz

* 52

—

fN ± 5,0 MHz ... fN ± 30,0 MHz

—

Impedance within the pass band

Input:

ZIN

RIN

CIN

—

340 || 1,9

—

Ω || pF

Output:

ZOUT = ROUT || COUT

—

340 || 1,9

—

Ω || pF

Temperature coefficient of frequency 1)

TCf

—

- 0,036

—

ppm/K2

Turnover temperature

—

—˚C

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