RF and Analog GPS/GNSS Front End for GPS, GLONASS, Galileo and Beidu

Overview

The software definable GNSS core enables simultaneous reception of all commercial GNSS signals in the 1560-1610MHz frequency range. It contains all the RF, IF, analog, data converter and power management circuitry for a complete GNSS core in a low cost CMOS 180nm process. The core includes clock generation circuitry for a configurable 2/3 bit converter which also provides a low jitter clock source for SoC applications. The configurable core can receive the traditional GPS L1 frequencies as well as the GLONASS G1, Galileo E1 and Compass B1-1 and B1-2 bands. A configurable bandpass filter and variable rate A/D converter allows each band to be received separately in single channel mode or all bands to be received together for high precision applications.An integrated FRAC-N synthesizer can be configured for a wide range of low cost cellular crystal frequencies from 10MHz-52MHz.

Key Features

Single Channel Mode

GPS L1 1575.42MHz
GLONASS G1 1603.50MHz
Galileo E1 1575.42MHz
Compass B1-1 1561.098MHz
Compass B1-2 1589.792MHz

Block Conversion mode

Variable sampling rate 16-160MHz
Simultaneous conversion of all commercial GNSS signals

Configurable 3/4 wire controller
2/3 bits A/D detection
Integrated AGC

50dB gain control range
Programmable threshold

Low Power

Single 1.8V supply with internal regulation
15mA in Single Channel mode
26mA in Block Conversion

Benefits

Fully integrated GPS/GNSS core including all the analog and RF functionality including A/D. Receivers all the GNSS signals from 160-1610MHz. Configurable for narrowband single mode or block conversion mode. 1,2 or 4 A/D bit resolution can be configured on the fly. Integrated Frac-N PLL support crystals from 10 -52MHz. Integrated LNA with bypass mode. Low Jitter clock synthesizer supports SoC integration.

Deliverables

GDSII, Functional Verilog model, Liberty timing models - Customized layout for SoC integration. Design Documentation.

Technical Specifications

Maturity

In Production

Availability

Available Now

GLOBALFOUNDRIES

Pre-Silicon: 65nm , 90nm , 130nm , 180nm
Silicon Proven: 130nm

LFoundry

Pre-Silicon: 150nm

SMIC

Pre-Silicon: 65nm LL , 90nm G , 130nm LL , 150nm G , 150nm LV , 160nm G , 160nm LL , 180nm G , 180nm LL

Silterra

Pre-Silicon: 90nm , 130nm , 180nm

TSMC

Pre-Silicon: 65nm LP , 90nm LP , 130nm LV , 180nm LP

Tower

Pre-Silicon: 130nm , 180nm , 180nm , 180nm

UMC

Pre-Silicon: 65nm SP , 90nm G , 130nm , 180nm

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