B7742 datasheet(6/16 Pages) EPCOS

Part #	B7742

Description	SAW GPS Extractor Filter 1575.42 / 859.0 / 1810.0 / 1920.0 / 2441.75 MHz

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6

May 24, 2006

B7742

1575.42 / 859.0 / 1810.0 / 1920.0 / 2441.75 MHz

Please read

cautions and warnings and

important notes at the end of this document.

SAW Components

SAW GPS Extractor Filter

Data Sheet

Characteristics

Bluetooth (2441.75 MHz) + GPS (1575.42 MHz)

Temperature range for specification:

T

= -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 || 2.2 nH

B7742

min.

typ.1)

@ 25 ˚C

1) PCB loss de-embedded

max.1)

Nominal frequency 1 (GPS)

fN1

—

1575.42

—

MHz

Nominal frequency 5 (Bluetooth)

fN5

—

2441.75

—

MHz

Maximum insertion attenuation

α

max

Antenna-GPS

1574.42

... 1576.42 MHz

—

1.1

1.62)

2) 1.4 dB max. at 25 ˚C

dB

Antenna-Bluetooth

2400.0

... 2483.5 MHz

—

0.7

1.0

dB

Attenuation

α

Antenna-GPS

824.0

...

894.0 MHz

34

38

—

dB

Antenna-GPS

1750.0

... 1990.0 MHz

34

39

—

dB

Antenna-GPS

2400.0

... 2483.5 MHz

36

40

—

dB

VSWR (Antenna)

Bluetooth band

2400.0

... 2483.5 MHz

—

1.2

1.6

GPS band

1574.42

... 1576.42 MHz

—

1.4

1.8

VSWR (GPS)

GPS band

1574.42

... 1576.42 MHz

—

1.4

1.8

VSWR (Non-GPS)

Bluetooth band

2400.0

... 2483.5 MHz

—

1.2

1.5

Isolation between Non GPS and GPS path

α

Bluetooth band

2400.0

... 2483.5 MHz

36

40

—

dB

GPS

ANT

PCS

Bluetooth

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