B7742 datasheet(5/16 Pages) EPCOS

5 / 16 page

May 24, 2006

B7742

1575.42 / 859.0 / 1810.0 / 1920.0 / 2441.75 MHz

SAW Components

SAW GPS Extractor Filter

Data Sheet

Please read

cautions and warnings and

important notes at the end of this document.

Characteristics

PCS (1920 MHz) + GPS (1575.42 MHz)

Temperature range for specification:

= -30 ˚C to +85 ˚

Terminating input antenna impedance:

ZANT =50 Ω || 10 nH

Terminating GPS impedance:

ZGPS =50 Ω

Terminating non GPS impedance:

ZnGPS =50 Ω || 3.3 nH

B7742

min.

typ.1)

@ 25 ˚C

1) PCB loss de-embedded

max.1)

Nominal frequency 1 (GPS)

fN1

—

1575.42

—

MHz

Nominal frequency 4 (PCS)

fN4

—

1920.0

—

MHz

Maximum insertion attenuation

max

Antenna-GPS

1574.42

... 1576.42 MHz

—

1.2

1.652)

2) 1.5 dB max. at 25 ˚C

Antenna-PCS

1850.0

... 1990.0 MHz

—

0.6

0.9

Attenuation

Antenna-GPS

824.0

...

894.0 MHz

—

Antenna-GPS

1750.0

... 1990.0 MHz

—

VSWR (Antenna)

PCS band

1850.0

... 1990.0 MHz

—

1.3

1.6

GPS band

1574.42

... 1576.42 MHz

—

1.6

1.9

VSWR (GPS)

GPS band

1574.42

... 1576.42 MHz

—

1.5

1.8

VSWR (Non-GPS)

PCS band

1850.0

... 1990.0 MHz

—

1.2

1.5

Isolation between Non GPS and GPS path

Cellular band

824.0

...

894.0 MHz

—

K-PCS + PCS band

1750.0

... 1990.0 MHz

—

GPS

ANT

PCS

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