B3881 Просмотр технического описания (PDF) - EPCOS AG

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B3881

SAW Components Low-Loss Filter

EPCOS AG 

SAW Components

Low-Loss Filter

Data Sheet

Characteristics

Operating temperature:

Terminating source impedance:

Terminating load impedance:

Nominal frequency

B3881

168,96 MHz

T = 0 .. +85 ˚C

ZS=50 Ω single ended and matching network

ZS=50 Ω single ended and matching network

min.

typ.

max.

fN

—

168,96

— MHz

Minimum insertion attenuation

(including matching network)

αmin

—

18,5

20,5 dB

Passband width

αrel ≤ 1 dB

αrel ≤ 2 dB

αrel ≤ 40 dB

B1dB

—

B2dB

—

B40dB

—

14,1

14,5

17,1

— MHz

— MHz

— MHz

Amplitude ripple (p-p)

∆α

fN ± 6,67 MHz

—

0,6

0,9 dB

Group delay ripple (p-p)

∆τ

fN ± 6,67 MHz

—

80

120 ns

Phase Linearity1) (rms)

∆ϕ

fN ± 1,92 MHz

—

fN - 5,0 MHz ± 1,92 MHz

—

fN + 5,0 MHz ± 1,92 MHz

—

fN + k*1,25 MHz ± 0,6144 MHz

—

Average Error Vector Magnitude 1)

EVM

0,5

1,0

1,5

2,5

0,9

1,5

0,7

1,3

fN ± 1,92 MHz

—

1,3

3,0

fN - 5,0 MHz ± 1,92 MHz

—

3,0

4,5

fN + 5,0 MHz ± 1,92 MHz

—

2,5

4,0

fN + k*1,25 MHz ± 0,6144 MHz

—

1,8

4,0

Relative attenuation (relative to αmin)

αrel

fN − 7,5 MHz ... fN − 17,5 MHz

2

4

—

fN + 7,5 MHz ... fN + 17,5 MHz

1,5

4

—

fN ± 17,5 MHz ... fN ± 21,5 MHz

41

45

—

fN ± 21,5 MHz ... fN ± 25,5 MHz

43

48

—

fN ± 25,5 MHz ... fN ± 66,0 MHz

45

50

—

fN ± 66,0 MHz ... fN ± 111,0 MHz

40

45

—

Temperature coefficient of frequency

TCf

—

– 18

—

1) Phase Linearity/Average Error Vector Magnitude:where k = (-5, -4 .... +5)

˚

˚

˚

˚

%

%

%

%

dB

dB

dB

dB

dB

dB

ppm/K

4 Jun 25, 2004

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