B7923 datasheet(3/16 Pages) EPCOS

3 / 16 page

January 26, 2011

B7923

836.50 / 881.50 MHz

SAW Components

SAW Duplexer

Data Sheet

Please read cautions and warnings and

important notes at the end of this document.

Characteristics

Temperature range for specification:

= –30 ˚C to +85 ˚C

Antenna terminating impedance:

ZANT=

Ω ll 11 nH4)

RX terminating impedance:

ZRX = 100 Ω + 2 nH (balanced) 4)

TX terminating impedance:

ZTX =

Ω

Characteristics TX - ANT

min.

typ.

@ 25 ˚C

max.

Center frequency

836.5

MHz

Maximum insertion attenuation

max

824.0

...

849.0

MHz

1.7

2.4

@fCarrier 826.4 ...

846.6

MHz

WCDMA

1) Attenuation of WCDMA signal (“Powertransferfunction”). Please refer to annotation on page (8).

1.4

2.02)

2) Temperature range for this parameter is -20oC to +85oC.

Amplitude ripple

∆α

824.0

...

849.0

MHz

0.8

1.4

@fCarrier 826.4 ...

846.6

MHz

WCDMA

0.4

0.92)

Error Vector Magnitude

@fCarrier 826.4 ...

846.6

MHz

EVM3)

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

2.5

3.22)

Input VSWR (TX port)

824.0

...

849.0

MHz

2.0

2.3

Output VSWR (ANT port)

824.0

...

849.0

MHz

1.8

2.2

545454)

4) Please refer to recommended matching circuit on page (9).

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