TEF6624 [NXP]

NXP low-IF analog car radio tuners TEF662x;


型号：	TEF6624
厂家：	NXP
描述：	NXP low-IF analog car radio tuners TEF662x
文件：	总2页 (文件大小：166K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

NXP low-IF analog car radio

tuners TEF662x

Easy-to-use, cost-effective tuners

for analog car radios

Building`on`the`success`of`NXP’s`TEF660x`and`TEF661x`families,`the`TEF662x`uses`a`low-IF`

architecture`to`ensure`high`integration`with`low`complexity.`The`result`is`easy`design-in`and`

best-in-class`price/performance`ratios.

Key features

Key applications

``Highly`integrated`tuners`with`low-IF`conversion

``PLL`synthesizer`with`integrated`VCO

``Integrated`AM`LNA`with`AGC`and`RF`selectivity`

(TEF6623`is`FM-only)

``Aftermarket`car`radios

``Consumer`radio

These`tuners`integrate`all`the`critical`RF`components,`so`

they’re`easy`to`design`onto`the`main`radio`board.`There’s`no`

need`for`a`tuner`module,`and`no`alignments`are`required.`

``Integrated`FM`LNA`with`AGC

``Stereo`decoder`with`output`for`interfacing`with`external`

analog`or`digital`audio`processor

``Advanced`weak`signal`processing`(soft`mute,`stereo`blend,`

high`cut`control)

The`performance,`feature`set,`and`quality`of`the`TEF662x`

family`are`optimized`to`enable`complementary`pricing`and`

product`positioning`for`the`cost-sensitive`aftermarket`car`

radio`and`consumer`segments.`All`the`devices`in`the`family`

are`software-`and`hardware-`(pin-to-pin`and`application)`

compatible`with`each`other`as`well`with`devices`from`the`

TEF660x`and`TEF661x`families.`This`allows`a`single`reference`

tuner`design`to`address`a`range`of`requirements.

``PACS

``FM`noise`blanker

``Signal`quality`detection

``I²C-bus`control

``RDS`demodulator`(TEF6623`&`24`only)

``Single`8.5`V`supply

``SO32`package

``Very`low`external`component`count

``Allows`for`fast`software`development`because`of`

integrated`radio`knowledge`and`easy`interface

``Very`good`strong`signal`behavior`

Low-IF architecture

Many`existing`solutions`require`double`IF`(intermediate`

frequency)`conversion.`NXP’s`low-IF`architecture`eliminates`

the`10.7`MHz`and`450`kHz`IF`transformer`coils`and`ceramics,`

as`well`as`the`expensive`external`components`needed`for`LNA` or`resources`can`design`the`TEF662x`onto`the`main`PCB`

and`AGC`in`the`AM`and`FM`front-ends.`The`TEF662x`family`

also`integrates`a`VCO,`so`there’s`no`need`for`external`LC`tank`

components.`

board,`saving`signiﬁcant`costs`by`making`a`tuner`module`

design`obsolete.`Manufacturing`is`also`easier,`since`full`SMD`

applications,`without`hand`mounting,`are`possible.`Production`

throughput`can`be`higher,`too,`because`there`are`fewer`small`

external`components`to`handle,`and`there`are`no`mechanical`

or`software`alignments`to`be`made.

The`low-IF`architecture`simpliﬁes`PCB`layout,`since`there`

aren’t`any`critical`high-frequency`lines`and`there’s`no`need`

for`alignments.`Even`designers`with`limited`RF`know-how`

Space savings delivered by TEF662x devices

TEF662x block and low-cost application diagram

IFT

CER

10.7 MHz

100 MHz

240 MHz

100 MHz

VCO

4 MHz

brb546

Conventional`

Tuner`Module

Tiger`main`board``

application

TEF662x selection guide

Type number

TEF6621

TEF6623

TEF6624

Power`supply

8.5`V

System

R(B)DS

Output

PACS

L/R,`MPX

L/R,`MPX,`RDS

•

Demodulator`/`decoder

Japan`/`EU`/`US`bands

OIRT

-/-

•`/`-

•

Stereo`decoder

Weak`signal`handling

LW`/`MW

•

Weak`signal`handling

Package

SO32

-20`to`85`°C

amb

General

Automotive

Product`release

Available

www.nxp.com

information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and

may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof

does not convey nor imply any license under patent- or other industrial or intellectual property rights.

Date of release: December 2010

Document order number: 9397 750 16995

Printed in the Netherlands

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