B3853 datasheet(3/7 Pages) EPCOS

3 / 7 page

Sep 30, 2002

SAW Components

B3853

141,0 MHz

Low-Loss Filter

Data Sheet

Characteristics

Operating temperature range:

= 0 to +85 ˚C

Terminating source impedance:

ZS = 50 Ω and external matching network

Terminating load impedance:

ZL = 50 Ω and external matching network

1) Except for two peaks around 144 and 146 MHz with typically 45dB

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

min.

typ.

max.

Nominal frequency

—

141,0

—

MHz

Minimum insertion attenuation

—

11,0

13,0

3,75 dB bandwidth

rel ≤ 3,75dB

B3,75dB

1,18

1,32

—

MHz

Amplitude ripple (p-p)

fN ± 525 kHz

∆α

—

0,2

1,0

Phase Linearity (rms)

fN ± 630 kHz

∆ϕ

—

1,0

2,0

deg

Absolute group delay

—

2,75

—

µs

Group delay ripple (p-p)

fN ± 525 kHz

∆τ

—

100

300

Relative attenuation (relative to

rel

50 MHz

...

120 MHz

—

120 MHz

...

fN − 1350 kHz

—

fN − 1350 kHz

...

fN − 1250 kHz

—

fN + 1250 kHz

...

fN + 1750 kHz

—

fN + 1750 kHz

...

175 MHz 1)

—

175 MHz

...

500 MHz

—

Return loss

fN ± 525 kHz

—

3rd-order intercept point

IP3

—

Temperature coefficient of frequency 2)

TCf

—

–0,036

—

ppm/K2

Turnover temperature

—

42,5

—

˚C

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