B4865 datasheet(3/6 Pages) EPCOS

3 / 6 page

March 06, 2002

SAW Components

B4865

134,04 MHz

Low Loss Filter for Mobile Communication

Data Sheet

Characteristics

Operating temperature range:

= -30˚C ... 85˚C

Terminating source impedance:

ZS = 850 Ω || - 0,8 pF

Terminating load impedance:

ZL = 850 Ω || - 0,8 pF

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

min.

typ.

max.

Nominal frequency

—

134,04

—

MHz

3 dB Bandwidth

—

kHz

Minimum insertion attenuation

min

—

3,6

4,5

(including losses in the matching network)

Amplitude ripple (p-p)

∆α

fN –

10,0 kHz ... fN +

10,0 kHz

—

0,2

1,5

fN –

13,0 kHz ... fN +

13,0 kHz

—

0,5

3,0

Group delay ripple (p-p)

∆τ

fN –

13,0 kHz ... fN +

13,0 kHz

—

3,5

10,0

µs

Relative attenuation (relative to

min)

rel

fN ±

60 kHz

—

fN ±

120 kHz

—

fN ±

240 kHz

—

fN ±

330 kHz

—

fN ±

480 kHz

—

fN ±

660 kHz

—

Spurious responses fN ±

480 kHz ... 1 MHz

—

Impedance within the passband

Input:

ZIN

RIN

CIN

—

850 || 0,8

—

Ω || pF

Output:

ZOUT = ROUT || COUT

—

850 || 0,8

—

Ω || pF

Temperature coefficient of frequency 1)

TCf

—

– 0,034

—

ppm/K2

Turnover temperature

—25

—

˚C

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