B801 datasheet(3/9 Pages) EPCOS

3 / 9 page

Nov 20, 2002

SAW Components

B 801

479,50 MHz

Satellite Receiver Filter

Data Sheet

Characteristics of channel 1

Reference temperature:

TA = 25 ˚C

Terminating source impedance:

ZS =50 Ω

Terminating load impedance:

ZL =50 Ω

Group delay aperture

0,25MHz

min.

typ.

max.

Insertion attenuation

479,50 MHz

—

22,3

Reference level for the

following data

Center frequency

478,50

479,50

480,50 MHz

Pass bandwidth

rel≤ 3 dB

B3dB

—

27,0

—

MHz

Relative attenuation

rel

466,00 MHz

—

2,8

4,5

493,00 MHz

—

3,0

4,5

Lower sidelobe

430,00 … 452,00 MHz

36,0

41,0

—

Upper sidelobe

507,00 … 530,00 MHz

34,0

39,0

—

Reflected wave signal suppression

0,14

µs … 2,0 µs after main pulse

40,0

49,0

—

Amplitude ripple (p–p)

∆α

471,00 ... 488,00 MHz

—

0,3

0,6

Group delay ripple (p–p)

∆τ

466,00 ... 493,00 MHz

—

Impedance at 479,50 MHz

Input:

ZIN

RIN

CIN

—

0,67|| 3,2

—

Ω || pF

Output:

ZOUT = ROUT || COUT

—

0,06|| 5,6

—k

Ω || pF

Temperature coefficient of frequency

TCf

—

– 86

—

ppm/K

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