GLONASS/GPS/Galileo/BeiDou multisystem single-band 2-channel receiver RFIC

Overview

NT1021 is a single-chip dual-channel RF front-end consuming a very low power (47 mW typical at 2.1 V) and performing a simultaneous reception of both GPS/Galileo/BeiDou and GLONASS signals.
Highly configurable, RFIC can deliver different clock frequencies and provide either analog or digital output using onboard ADC circuits. This, alongside with configurable output CMOS level, makes the circuit compatible with many available baseband ICs.
Integrated stabilized voltage sources for TCXO, external LNA and active antenna alongside with integrated IF and PLL filters make the device easy to use with minimum external components. RFIC can be delivered in three variants: 6x6mm QFN40 or 5x5mm QFN32 packages, or unpackaged, in dies for SiP implementation.
IC is fabricated on SMIC CMOS 0.18 um technology.

Key Features

SMIC CMOS 0.18 um technology
Simultaneous GPS, Galileo, BeiDou and GLONASS signals reception
Single conversion superheterodyne receiver
Optimized for SiP implementation
Minimum external components
2-input RF MUX with amplifier
Configurable antenna detector with load and short detection functions
Stabilized configurable voltage sources for LNA, active antenna and TCXO
Stabilized separate voltage sources for internal blocks
Mixer preamplifier with programmable operating current
Image-rejection quadrature mixer
Integrated IF filters with band auto-tuning
Independent IFA AGC for each channel
Selectable channel output type: differential linear output or digital CMOS output with built-in 2-bit ADC
Zero offset autocompensation
Fully integrated synthesizer
Fully integrated tunable loop filter
Configurable clock driver for baseband processor
Fully integrated VCO with automatic adjustment system
PLL lock indicator
4-wire serial peripheral interface for status monitoring, mode configuration and parameter adjustment
Interrupt signal (diagnostics request) – instant flag showing that IC is in normal functioning mode
«Stand-by» mode with minimum current consumption
Different supply schemes (one-voltage, two-voltage)
6x6 mm QFN40 package option
5x5 mm QFN32 package option
23 external pins in QFN package SiP

Applications

Navigation systems
Portable receivers
Mobile communications
Measuring equipment

Deliverables

Datasheet
Layout View (GDSII)
Evaluation kit based on packaged IC
Characterization Report
Behavioral Model
SPICE netlist (.cdl)
Integration Support

Technical Specifications

Foundry, Node

SMIC RF CMOS 180 nm

Maturity

Silicon proven

Availability

Now

SMIC

Silicon Proven: 180nm G

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