SE4110S

GPS Receiver IC

Applications

High sensitivity / low power GPS and A-GPS

applications

Portable navigation devices, mobile phones and

GPS peripheral devices

Telematics equipment

Features

Single-conversion L1-band GPS radio with

integrated IF filter

Integrated LNA; 1.6 dB typ. noise figure

Low RF system noise figure; 2.25 dB typ.

Low 10 mA operating current with 2.7-3.3 V supply;

8 mA with internal LNA disabled

Standby current <10 µA

Fully Integrated PLL, compatible with 13, 16.368,

19.5 and 26MHz reference frequencies

2-bit SIGN & MAG Digital IF output

Integrated VCO and resonator

I/O supply range extends down to 1.7 V

2.2 x 2.2 x 0.3 mm, 46 pad, 250um pitch, SnAg

solder bump, RoHS-compliant package

Ordering Information

Part No.

Package

Remark

SE4110S-R

46-Pad Chip-Scale

Package

Shipped in Tape

& Reel

Functional Block Diagram

Product Description

The SE4110S is a highly integrated GPS receiver

offering high performance and low power operation in a

wide range of low-cost applications. It is particularly well

suited to cellphone and high sensitivity L1-band GPS /

A-GPS systems.

The SE4110S includes an on-chip LNA, a low IF

receiver with a linear AGC and 2-bit analogue-to-digital

converter (ADC). The receiver incorporates a fully

integrated image reject mixer so no SAW filter is

required in many applications. There is also an on-chip

IF filter.

The SE4110S supports a wide range of reference

frequencies addressing both traditional GPS systems

and

emerging

mobile

phone

applications.

The

synthesizer is highly integrated requiring only two

passive components to implement an off-chip loop filter.

The SE4110S is optimized for the lowest possible

power consumption consistent with the very low

external component count.

The SE4110S incorporates current controlled low-

spurious output buffers which may optionally be run

from a separate external supply to interface to low

voltage systems. The buffers supply sufficient current to

drive most baseband devices directly.

SE4110

Phase/Frequency

Detector

Quadrature

÷2

Feedback

Divider

IF Filter

~

~

~

VCO

-45°

+45°

ADC

~

AGC

Controller

IQ

Reference

Divider

VTUNE

XTAL2

XTAL1

VAGC

CLK_OUT

Chip

control

Clock

select

OSC_EN

RX_EN

FREF2

FREF1

FREF0

SIGN

MAG

AGC_DIS

RVI

Buffer

Optional

filter

LNA_IN

LNA_OUT

MIX_IN

LNA

Oscillator

/ Buffer

PLL Loop

Filter

DST-00065

Rev 5.3 May 25-2009

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