B8103 datasheet(5/7 Pages) EPCOS

Part #	B8103

Description	IF Filters for Cordless Phones and ISM-Band Application

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Manufacturer	EPCOS [EPCOS]

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3

May 08, 2001

SAW Components

B 8103

110,59 MHz

Bandpass Filter

Data Sheet

Characteristics

Reference temperature:

T

= +25 ˚C

Terminating source impedance:

ZS = 50 Ω (190 Ω || 160 nH*)

Terminating load impedance:

ZL =50 Ω (180 Ω || 150 nH*)

*) with matching network to 50

Ω (element values depend on PCB layout):

min.

typ.

max.

Nominal frequency

fN

110,53

110,59

110,65 MHz

Insertion attenuationat

fN

α

N

14,0

15,5

17,0

dB

(including losses in matching network)

(11,1*)

(12,6*)

(14,1*) dB

Pass bandwidth

Β

3dB

0,66

0,70

0,74 MHz

Β

30dB

—

1,9

—

MHz

Group delay ripple (p-p)

∆τ

fN - 350 kHz

...

fN + 350 kHz

—

130

200

ns

—

(350*)

(450*)

ns

Relative attenuation (relative to

α

n)

α

rel

fN ± 20,0 MHz ... fN ± 3,1 MHz

42

48

—

dB

fN ± 3,1 MHz ... fN ± 2,5 MHz

40

48

—

dB

fN ± 2,5 MHz ... fN ± 1,3 MHz

32

38

—

dB

Impedance at

fN

Input:

ZIN

=

RIN

||

CIN

—

190 || 12

—

Ω || pF

Output:

ZOUT = ROUT || COUT

—

180 || 16

—

Ω || pF

Temperature coefficient of frequency

TCf

—

– 18

—

ppm/K

Ls1 = 100 nH

Ls2 = 120 nH

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