B1708 Просмотр технического описания (PDF) - EPCOS AG

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производитель

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:

Nominal frequency

Minimum insertion attenuation1)

B1708

72.54 MHz

T = –40 ˚C to +85 ˚C

ZS = 50 Ω (single ended) and matching network

ZL = 50 Ω (single ended) and matching network

min.

typ.

max.

@ 25 ˚C

fN

—

72.54

—

MHz

αmin

—

12.9

14.4 dB

Amplitude ripple (p-p)

∆α

fN ± 1.85 MHz

Pass bandwidth

αrel ≤ 1.5 dB

αrel ≤ 3 dB

αrel ≤ 15 dB

αrel ≤ 30 dB

B1.5dB

B3dB

B15dB

B30dB

Mean attenuation (relative to αmin)

αrel

Upper sidelobe 86.47 ... 91.53 MHz

Relative attenuation (relative to αmin) αrel

Lower sidelobe 50.00 ... 65.00 MHz

65.00 ... 66.48 MHz

66.48 ... 68.08 MHz

Upper sidelobe 77.30 ... 78.60 MHz

78.60 ... 86.47 MHz

86.47 ... 91.53 MHz

91.53 ... 95.21 MHz

95.21 ... 100.00 MHz

Group delay ripple (p–p)

∆τ

Aperture 50 kHz

fN ± 1.85 MHz

Temperature coefficient of frequency TCf

1) Including losses in the matching network

—

—

—

—

—

48.0

34.0

36.0

34.0

28.0

34.0

42.0

44.0

48.0

—

—

1.2

4.0

4.4

5.8

6.7

52.0

38.0

42.0

38.0

32.0

39.0

46.0

48.0

53.0

190

–18

1.5 dB

—

MHz

—

MHz

6.0 MHz

7.0 MHz

—

dB

—

dB

—

dB

—

dB

—

dB

—

dB

—

dB

—

dB

—

dB

—

ns

—

ppm/K

Please read cautions and warnings and

important notes at the end of this document.

6 May 16, 2006

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