B4869 datasheet(4/6 Pages) EPCOS

4 / 6 page

Jun 06, 2002

SAW Components

B4869

157,32 MHz

Low Loss Filter for Mobile Communication

Data Sheet

Characteristics

Operating temperature range:

= -30˚C ... 85˚C

Terminating source impedance:

ZS = 725 Ω || -1,1 pF

Terminating load impedance:

ZL = 725 Ω || -1,1 pF

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

min.

typ.

max.

Nominal frequency

—

157,32

—

MHz

3 dB bandwidth (from fN)

± 20

—

kHz

Minimum insertion attenuation

min

—

3,9

5,0

(including losses in the matching network)

Group delay ripple (p-p)

∆τ

fN –

15,0 kHz ... fN +

15,0 kHz

—

2,0

6,0

µs

Relative attenuation (relative to

min)

rel

fN –

20,0 kHz ... fN +

20,0 kHz

—

0,5

3,0

fN ±

90,0 kHz ... fN ± 120,0 kHz

—

fN ± 120,0 kHz ... fN ±

3,5 MHz

—

fN ±

3,5 MHz ... fN ±

15 MHz

—

0,1 MHz ... fN −

15 MHz

—

fN +

15 MHz ...

300 MHz

—

300 MHz ...

500 MHz

—

500 MHz ...

1400 MHz

—

1400 MHz ...

2500 MHz

—

Impedance within the passband

Input:

ZIN

RIN

CIN

—

725 || 1,1

—

Ω || pF

Output:

ZOUT = ROUT || COUT

—

725 || 1,1

—

Ω || pF

Temperature coefficient of frequency 1)

TCf

—

- 0,036

—

ppm/K2

Turnover temperature

—26

—

˚C

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