B7955 datasheet(4/11 Pages) EPCOS

4 / 11 page

February 1, 2010

B7955

1880.0 / 1960.0 MHz

Please read

cautions and warnings and

important notes at the end of this document.

SAW Components

BAW/SAW Duplexer

Data sheet

Characteristics

Temperature range for specification:

= –10 ˚C to +85 ˚C

ANT terminating impedance:

ZANT =50 Ω

RX terminating impedance:

ZRX = 100 Ω (balanced) || 15 nH

TX terminating impedance:

ZTX =50 Ω

Characteristics ANT- RX

min.

typ.

@ 25˚C

max.

Center frequency

———

MHz

Maximum insertion attenuation

@fCarrier 1932.4 ... 1987.6MHz

WCDMA

1) Attenuation of WCDMA signal (“Powertransferfunction”). Please refer to annotation on page (6).

—

2.6

3.7

1930.0

... 1935.0 MHz

—

2.7

4.5

1935.0

... 1990.0 MHz

—

2.7

3.5

Amplitude ripple (p-p)

@fCarrier 1932.4 ... 1987.6MHz

WCDMA

—

1.0

2.0

Error Vector Magnitude

@fCarrier 1932.4 ... 1987.6MHz EVM2)

2) Error Vector Magnitude (EVM) based on definition given in 3GPP TS 25.141.

—

1.7

4.1

@fCarrier 1932.4 ... 1987.6MHz EVM2)

—

1.7

2.83)

3) Valid for reduced temperature range +20 ˚C to +85 ˚C

Input VSWR (ANT port)

1930.0

... 1990.0 MHz

—

1.7

2.0

Output VSWR (RX port)

1930.0

... 1990.0 MHz

—

1.8

2.3

Attenuation

0.3

... 1770.0 MHz

—

1770.0

... 1850.0 MHz

—

@fCarrier 1852.4 ... 1907.6MHz

WCDMA

—

1910.0

... 1915.0 MHz

—

2010.0

... 2070.0 MHz

—

2070.0

... 2500.0 MHz

—

2500.0

... 3780.0 MHz

—

3780.0

... 3980.0 MHz

—

3980.0

... 6000.0 MHz

—

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