B9308 查看數據表（PDF） - EPCOS AG

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B9308

SAW Components SAW Rx 2in1 filter GSM 900 / GSM 1800

EPCOS AG 

SAW Components

SAW Rx 2in1 filter

Data sheet

Characteristics of Filter 1 ( GSM 1800)

Temperature range for specification:

Terminating source impedance:

Terminating load impedance:

B9308

942.5 / 1842.5 MHz

T = -20 ˚C to +85 ˚C

ZS = 50 Ω

ZL = 150 Ω || 15 nH (balanced)

Center frequency

Maximum insertion attenuation

1805.0 ... 1880.0

Amplitude ripple (p-p)

1805.0 ... 1880.0

Input VSWR

1805.0 ... 1880.0

Output VSWR

1805.0 ... 1880.0

fC

αmax

MHz

∆α

MHz

MHz

MHz

min.

—

—

—

—

—

typ.

@25˚C

1842.5

max.

—

MHz

1.61) 2.32) dB

0.7 1.33) dB

1.8

2.2

1.7

2.2

Output amplitude balance (|S31/S21|)

1805.0 ... 1880.0 MHz

Output phase balance (φ(S31)−φ(S21)+180˚)

1805.0 ... 1880.0 MHz

Attenuation

10.0 ... 902.0

902.0 ... 940.0

940.0 ... 1705.0

1705.0 ... 1785.0

1920.0 ... 1980.0

1980.0 ... 2030.0

2030.0 ... 2400.0

2400.0 ... 2500.0

2500.0 ... 2775.0

2775.0 ... 2880.0

2880.0 ... 3610.0

3610.0 ... 3760.0

3760.0 ... 5415.0

5415.0 ... 5640.0

5640.0 ... 6000.0

α

MHz

MHz

MHz

MHz

MHz

MHz

MHz

MHz

MHz

MHz

MHz

MHz

MHz

MHz

MHz

1) Typical value excluding PCB losses of 0.27 dB.

2) 2.1 dB at 25 ˚C.

3) 1.0 dB at 25 ˚C.

4) 14 dB at 25 ˚C.

–1.0 -0.5/0.7 1.0 dB

–10 -3/+3 10 ˚

45

52

45

52

28

36

124)

18

17

22

25

30

28

34

32

38

28

32

38

58

28

54

38

56

28

48

35

48

28

48

— dB

— dB

— dB

— dB

— dB

— dB

— dB

— dB

— dB

— dB

— dB

— dB

— dB

— dB

— dB

Please read cautions and warnings and

important notes at the end of this document.

3 August 15, 2006

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