B1708 Ver la hoja de datos (PDF) - EPCOS AG

Número de pieza

componentes Descripción

Fabricante

B1708

SAW IF filter Satellite radio

EPCOS AG 

SAW Components

SAW IF filter

Data sheet

Characteristics

Temperature range for specification:

Terminating source impedance:

Terminating load impedance:

B1708

72.54 MHz

T = –40 ˚C to (+85 ˚C) +105 ˚C

ZS = 27 Ω and matching network

ZL = 1 kΩ and matching network

Nominal frequency

min.

typ.

max.

@ 25 ˚C

fN

—

72.54

—

MHz

Minimum insertion attenuation1)

αmin

—

14.5

16.0 dB

Maximum voltage gain source – load

(VL/VS)

αvgsl

–4.2

–2.7

—

dB

Amplitude ripple (p-p)

∆α

fN ± 1.85 MHz

—

1.0 (1.3) 1.5 dB

Pass bandwidth

αrel ≤ 1.5 dB

αrel ≤ 3 dB

αrel ≤ 15 dB

αrel ≤ 30 dB

B1.5dB

—

B3dB

—

B15dB

—

B30dB

—

4.0

—

MHz

4.3

—

MHz

5.7

5.9 MHz

6.6

7.0 MHz

Mean attenuation (relative to αmin)

αrel

Upper sidelobe 86.47 ... 91.53 MHz

48.0

53.0

—

dB

Relative attenuation (relative to αmin) αrel

Lower sidelobe 50.00 ... 65.00 MHz

40.0

44.0

—

dB

65.00 ... 66.48 MHz

33.0

38.0

—

dB

66.48 ... 68.08 MHz

32.0

36.0

—

dB

Upper sidelobe 77.30 ... 78.60 MHz

32.0

36.0

—

dB

78.60 ... 86.47 MHz

36.0

41.0

—

dB

86.47 ... 91.53 MHz

44.0

48.0

—

dB

91.53 ... 95.21 MHz

44.0

48.0

—

dB

95.21 ... 100.00 MHz

46.0

50.0

—

dB

Group delay ripple (p–p)

∆τ

Aperture 50 kHz

fN ± 1.85 MHz

—

210

Temperature coefficient of frequency TCf

—

–18

1) Including losses in the matching network

—

ns

—

ppm/K

Please read cautions and warnings and

important notes at the end of this document.

3 May 16, 2006

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