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PRELIMINARY DATA

May, 7 2002

STB5610

GPS RF FRONT-END IC

TQFP48

ORDER CODE

STB5610

BRANDING

STB5610

• ONE CHIP SYSTEM TO INTERFACE GPS

ANTENNA TO GPS MICRO CONTROLLER

• ABLE TO SUPPORT ACTIVE AND PASSIVE

ANTENNA

• MINIMUM EXTERNAL COMPONENTS

• COMPATIBLE WITH GPS L1 SPS SIGNAL AND

GALILEO FREQUENCIES

• CMOS OUTPUT LEVELS

• 2.7 V .. 3.6 V SUPPLY VOLTAGE

• EMBEDDED LOW PHASE NOISE PLL

• ACTIVE ANTENNA SENSOR

• SMART CHIP ENABLE FUNCTION FOR POWER

CONSUMPTION OPTIMIZATION

• ESD PROTECTED

DESCRIPTION

The STB5610, using ST Microelectronics RF Bipolar

technology, implements a Global Positioning System

RF front-end. The chip provides down conversion

from the 1575.42 MHz GPS (L1) signal to 4.092 MHz

Output signal. The integrated PLL

with on-chip

reference oscillator uses a low cost 16.368 MHz

crystal. No TCXO is required.

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Vcc_XTAL

Vcc_Logic

LF

Vcc_VCO

Gnd

TNK1

TNK2

Gnd

Gnd

IF1+

IF1-

Gnd

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Vcc_Logic2

Gnd

CLK

Gnd_Driver

Vcc_Driver

Gnd_Loic

Vcc_Logic

AS1

AS2

GC

As_out

DATA

PIN CONNECTION