B4843 datasheet(3/7 Pages) EPCOS

3 / 7 page

Apr 11, 2002

SAW Components

B4843

360,00 MHz

Low-Loss Filter for Mobile Communication

Data Sheet

Characteristics

Ambient temperature:

= -20˚C to +75˚C

Terminating source impedance:

ZS = 780 Ω || -1,9 pF

Terminating load impedance:

ZL = 780 Ω || -1,9 pF

1) Temperature dependence of f

c:fc(T) = fc(T0)(1 + TCf(T – T0)

*) In the frequency range from 357,8 MHz to 358,2 MHz there exists one spurious response with

a maximum 3 dB - bandwidth of 150 kHz. The minimum attenuation

rel of this spurious

response is more than 46 dB.

min.

typ.

max.

Nominal frequency

—

360,00

—

MHz

(center frequency between 3 dB points)

Minimum insertion attenuation

including loss in matching network

min

5,0

5,6

6,4

excluding loss in matching elements

min

4,3

4,9

5,5

Amplitude ripple (p-p)

∆α

fN -67,5kHz .. fN+67,5 kHz

—

0,5

2,0

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

—

0,5

3,0

Group delay ripple (p-p)

∆τ

fN -67,5 kHz .. fN+67,5 kHz

—

0,50

1,5

µs

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

—

0,65

2,0

µs

Relative attenuation (relative to

min)

rel

fN ± 300 kHz ... fN ± 400 kHz

—

fN ± 400 kHz ... fN ± 600 kHz

—

fN ± 600 kHz ... fN ± 800 kHz

—

fN ± 800 kHz ... fN ± 1,6 MHz

—

fN ± 1,6 MHz ... fN ± 3,0 MHz

48*)

—

fN ± 3,0 MHz ... fN ± 4,0 MHz

—

fN ± 4,0 MHz ... fN ± 15 MHz

—

Impedance within the pass band

Input:

ZIN

RIN

CIN

—

780 || 1,9

—

Ω || pF

Output:

ZOUT = ROUT || COUT

—

780 || 1,9

—

Ω || pF

Temperature coefficient of frequency 1)

TCf

—

-0,028

—

ppm/K2

Turnover temperature

—25

—

˚C

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