Datasheet > SE4150L-R

SE4150L-R

更新时间： 2024-11-09 12:49:55

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GPS Receiver IC Preliminary Datasheet

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SE4150L-R 数据手册

SE4150L

GPS Receiver IC

Preliminary Datasheet

Applications

Product Description

The SE4150L is a highly integrated GPS receiver IC

offering high performance and low-power operation in a

wide range of low-cost applications. It is particularly

well-suited to high sensitivity L1-band GPS systems.

High sensitivity / low power GPS / A-GPS apps.

Personal Navigation Devices (PNDs) , mobile

phones, and GPS peripheral devices

The SE4150L is ideal for use in GPS receivers needing

dual-antenna inputs. The SE4150L includes two RF

inputs with integrated antenna switching and external

active-antenna current detection. A high-linearity on-

chip LNA is used with one of the inputs, allowing the

SE4150L to be used in multi-function wireless systems,

without the need for additional external LNA devices. A

fully integrated image-reject low-IF mixer is used with a

linear AGC, an on-chip IF filter, and a 2-bit analogue-to-

digital converter (ADC).

Features

Single-conversion L1-band GPS radio with

integrated IF filter

Integrated LNA with high-gain (20 dB typ.) and low

NF (0.9 dB typ.)

Integrated antenna switching with active antenna

current detection

Low cascaded system noise figure of 1.2 dB typical

2-bit SIGN & MAG digital IF output

2.7 V - 3.6 V operation

The SE4150L features two gain control modes, to

optimize the performance of the LNA and mixer for

systems which either require high signal handling, or

systems which need minimal supply current.

Standby current <10 µA

Fully integrated PLL synthesizer, VCO & loop filter

compatible with 16.368 MHz ref. frequency

4 x 4 x 0.9 mm 24 pin QFN

The SE4150L synthesizer is fully integrated including

the VCO and PLL loop-filter. The synthesizer can

operate from a 16.368 MHz reference frequency,

normally with an external TCXO.

Pb-free, RoHS compliant and Halogen free

Ordering Information

The SE4150L is optimized for operation from a 3.3 V

core power supply. It incorporates current-controlled

low-spurious output buffers which may operate from a

separate external supply. Output buffers supply

sufficient current to drive up to 15 pF load directly.

Part No.

Package

Remark

SE4150L-R 24 pin QFN

Shipped in Tape & Reel

Functional Block Diagram

Optional

filter

VAGC

ANT_SW_OUT

MIX_IN

AGC

Controller

IF Filter

LNA

LNA_IN

-45°

MAG

Buffer

LNA Gain

ADC

+45°

ANT1_IN

SIGN

Mix Gain

To External Active

Antenna

CLK_OUT

Filter Gain

ANT_BIAS

HW_0

HW_1

Quadrature

÷2

Antenna

Current

Detect

Feedback

Divider

Chip

Control

PLL

VCO

ANT_FEED

ANT_DET

CLK_EN

RX_EN

RVI

Phase /

Freq.

Detector

Charge

Pump

PLL Loop

Filter

Reference

Buffer

SE4150L

TCXO IN VCC_TCXO

DST-00176 Rev 2.7 May-26-2009

1 of 2

中文翻译

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