B39301-B3867-H510 Просмотр технического описания (PDF) - EPCOS AG

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B39301-B3867-H510

SAW Components Low-Loss Filter

EPCOS AG 

SAW Components

Low-Loss Filter

Data Sheet

Characteristics

Operating temperature:

Terminating source impedance:

Terminating load impedance:

B3867

300,0 MHz

TA = -30 ... +70 ˚C

ZS = 50 Ω and matching network

ZL = 50 Ω and matching network

Center frequency

(center between 3dB points)

min.

typ.

max.

fC

299,910 300,015 300,090 MHz

Minimum insertion attenuation

(including matching network)

αmin

—

18,0

19,0 dB

Passband width1)

αrel ≤ 3 dB

αrel ≤ 40 dB

Absolute group delay (at fC)

Amplitude ripple (p-p)

fC ± 1,2 MHz

Group delay ripple (p-p)

fC ± 1,6 MHz

Phase ripple (p-p)

fC ± 1,6 MHz

Return loss (Input and Output)

fC ± 1,6 MHz

Triple Transit Suppression

B3,0dB 3,3

B40dB

—

τ

—

∆α

—

∆τ

—

∆ϕ

—

3,35

4,75

1,75

0,8

125

5

— MHz

4,8 MHz

1,8 µs

1,1 dB

200 ns

10 ˚

10

12

— dB

37

38

— dB

Relative attenuation (relative to αmin)2)

fC ± 6 MHz ... fC ±40 MHz

αrel

45

50

— dB

Temperature coefficient of frequency3)

Turnover temperature

TCf

—

T0

—

1) all bandwidths are centered at fc

2) apart from two peaks at or around fC + 21 MHz with typically 45 dB attenuation

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

– 0,036

20

— ppm/K2

— ˚C

3 Nov 09, 2004

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