C61157-A7-A56 datasheet(4/9 Pages) EPCOS

Part #	C61157-A7-A56

Description	Satellite Receiver Filter

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Manufacturer	EPCOS [EPCOS]

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4

Nov 20, 2002

SAW Components

B 801

479,50 MHz

Satellite Receiver Filter

Data Sheet

Characteristics of channel 2

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

α

—

22,3

25

dB

Reference level for the

following data

Center frequency

fc

478,50

479,50

480,50 MHz

Pass bandwidth

α

rel≤ 3 dB

B3dB

—

18,0

—

MHz

Relative attenuation

α

rel

470,50 MHz

—

2,9

4,7

dB

488,50 MHz

—

2,9

4,4

dB

Lower sidelobe

430,00 … 457,50 MHz

36,0

43,0

—

dB

Upper sidelobe

500,50 … 530,00 MHz

34,0

41,0

—

dB

Reflected wave signal suppression

0,13

µs … 2,0 µs after main pulse

40,0

45,0

—

dB

Amplitude ripple (p–p)

∆α

476,00 ... 483,00 MHz

—

0,2

0,6

dB

Group delay ripple (p–p)

∆τ

470,50 ... 488,50 MHz

—

11

18

ns

Impedance at 479,50 MHz

Input:

ZOUT = ROUT || COUT

—

0,59|| 3,5

—k

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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