LNA	1st Mixer	IF / AGC	2nd Mixer	Processor
		PLL		oscillator
	Required Functions & Agilent Technologies products

Agilent Technologies supplies:
Transistors and building blocks for use in the receiver.

GPS LNA and Gain Stages

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receives satellite signal; provides amplification
[1575 MHz and / or 1228 MHz; NF <3 dB]

ATF-34143, ATF-21186, ATF-36163, ATF-10236, ATF-13284 as LNA or gain stage
AT-414, AT-415, AT-320, AT-310, AT-305, HBFP-0405, HBFP-0420 as LNA or gain stage
MGA-85563, MGA-86563, MGA-87563, as LNA or gain stage

GPS 1st Mixer

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downconverts signal from 1575 to IF (100 to 300 MHz range typ)

HSMS-280x, HSMS-281x Schottky diode pairs and quads
IAM-81008 IC mixer
IAM-91563 IC mixer

GPS IF / AGC

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IF: provides intermediate frequency amplification

ATF-34143, ATF-21186, ATF-10236, ATF-13284 as gain stage
AT-414, AT-415, AT-320, AT-310, AT-305 as gain stage
INA-30311, INA-32063, INA-50311, INA-51063, as gain stage

AGC: adjusts signal strength into second mixer

HSMP-381x singles and pairs
IVA-05208

GPS 2nd Mixer IF

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downconverts signal from IF (100 to 300 MHz range typ) to baseband

HSMS-280x, HSMS-281x Schottky diode pairs and quads
IAM-81008 IC mixer

GPS Processor

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converts baseband signal into location information

Agilent Technologies does not presently manufacture devices for the signal processor

GPS Phase Locked Loop

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Synthesizes stable reference frequency for first down-conversion

AT-415, AT-320, AT-310, AT-305 as oscillator

INA-31063 as buffer

HSMS-280x Schottky diode pairs and quads as phase detector.

GPS 2nd LO

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Provides frequency for second down-conversion

AT-415, AT-320, AT-310, AT-305 as oscillator