B9428 datasheet(3/9 Pages) EPCOS

3 / 9 page

March 02, 2007

B9428

1880.0 MHz

SAW Components

SAW Tx filter

Preliminary data

Please read

cautions and warnings and

important notes at the end of this document.

Characteristics

Temperature range for specification:

= –20 ˚C to +75 ˚C

Terminating source impedance:

ZS =200 Ω || 27 nH (balanced)

Terminating load impedance:

ZL =50 Ω (unbalanced)

LP05B1)

1) Values in columns min, typ and max indicate the development status of the current version.

min.

typ.

@ 25 ˚C

max.

Center frequency

—

1880.0

—

MHz

Maximum insertion attenuation

max

1850.625 ... 1909.375 MHz

—

2.7

4.2 2)

2) 4.7 dB max. at –30 ˚C ... 85 ˚C

Amplitude ripple (p-p)

∆α

1850.625 ... 1909.375 MHz

—

0.7

2.3 3)

3) 2.8 dB max. at –30 ˚C ... 85 ˚C

Input VSWR

1850.625 ... 1909.375 MHz

—

1.9

2.2

Output VSWR

1850.625 ... 1909.375 MHz

—

1.8

2.1

Input amplitude balance (|S31/S21|)

1850.625 ... 1909.375 MHz

–1.4

–0.7/+0.6

1.4

Input phase balance (

φ(S

31) – φ(S21)+180˚)

1850.625 ... 1909.375 MHz

–10

–5/+0

Attenuation

0.0

... 1570.0

MHz

—

1570.0

... 1770.0

MHz

—

1770.0

... 1830.0

MHz

—

1930.625 ... 1989.4

MHz

—

1989.4

... 2500.0

MHz

—

2500.0

... 6000.0

MHz

—

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