ETC LV25450PW LC75045PE

T OP I C S
推
广
产
品
话
题
引领行业的汽车音响LSI
车用数字调谐器系统
CD/调谐器/音响处理功能搭载于单个封装!
SDRCDS500
(SANYO Digital Radio CD System 500)
▼芯片结构▼
LV25450PW
车用支持全球
AM/FM调谐器 前端LSI
LC75045PE
车用音响信号处理之完整
数字调谐器 后端LSI
封装面积 节省空间 · 高音质 · 支持
WMA/MP3/AAC播放 · 模组开发设计效率
为市场要求作出极大贡献!!
SDRCDS500
系统结构实例
LV25450PW
Tuner Front End
Tuner DSP
硅音响播放器
RDS
USB Host
LC87F1HC8SA
USB
USB存储
减少部件个数
LV75045PE
CD DSP
Audio DSP
- MP3/WMA/AAC
- EQ
- Surround
功率放大器
LV47002
控制用辅助微控制器
DC-DC转换器
LV5749V
SDRAM
CD用马达驱动器
LA6242H
CD机
EMI噪声对策
单封装
系统控制用微控制器
LC88FXX(16bit)
LCD驱动器
LC758XX
LCD Panel/Key
http://semicon.cn.sanyo.com/
三洋半导体公司
20090206-1/2
推广产品话题
前端LSI
车用数字调谐器系统 SDRCDS500
LV25450PW 特点
◆ 支持World Wide AM/FM调谐器
●支持FM:US,Euro,E-Euro,JPN,Weather Band
●支持AM:LW,MW,SW
◆ LV25450PW的控制可经由LC75045PE进行
◆ FM MIX 搭载图像取消混频器
◆ 电源电压:5V,8V 封装:64引较(0.5㎜间距)
后端LSI
LC75045PE 特点
◆ 实现模组基板之省空间化
⇒CD/收音机/音响 处理功能搭载于单个封装
◆ 实现收音机信号之高质量
模拟收音机
AM/FM
FE
模拟处理
AM检波/
FM解调
AM/FM IF
FM降噪
SDRCDS500
AM/FM
FE
IF AGC
Amp
FM
立体声解
码器
L
R
数字处理
ADC
AM检波/
FM解调
IF
处理
AM/FM
降噪
FM
立体声解
码器
L
R
数字化
●AM/FM检波处理之后,全部数字处理
●搭载高精确度的数字消除噪声运算法则
提高接收精确度, 接收灵敏度
降低接收噪声(与传统产品相比較)
◆ 音响部分 · CD部分信号处理
●
●
●
●
搭载音响处理运算法则(每一用户可定制)
各种压缩音频信号的解码处理(WMA,MP3,AAC)
生成各种警告声音功能(倒车时Sonar声,指示灯工作时滴答声,等)
CD-DA/R/RW用RF信号处理,伺服处理,抗振控制,CD播放控制等
◆ 控制的简单化(搭载控制用辅助微控制器)
◆ 电源电压:1.2V,3.3V,5V
http://semicon.cn.sanyo.com/
封装:256引较 (0.4㎜间距)
三洋半导体公司
20090206-2/2
T OP I C S
Promotional Product Topics
Digital Tuner System Chipset for Automotive Application
All-In-One LSI for CD / Radio / Audio signal processing !
SDRCDS500
(SANYO Digital Radio CD System 500)
T Chipset Composition T
LV25450PW
AM/FM Global Tuner
Front-End LSI for automotive
application
LC75045PE
Digital Tuner Back-End LSI
of Audio / Radio / CD DSP
Reduced PCB Area / High-Quality Sound /
WMA/MP3 / AAC Playback
Meets the market demand !!
Example of SDRCDS500 System Configuration
Reduced
Peripheral
Parts
Reduced
EMI Noise
All-In-One
Package
www.semiconductor-sanyo.com/network
20090206 - 1/2
Promotional Product Topics
Automotive Digital Tuner System SDRCDS500
Feature of LV25450PW (Tuner-Front-End LSI)
‹ AM / FM Global Tuner
z FM: US, Euro, E-Euro, JPN, Weather Band
z AM: LW, MW, SW
‹ Control command is transferred via LC75045PE
‹ FM MIX Image Cancel Mixer is implemented
‹ VDD: 5V,8V Package: 64pin (0.5mm pitch)
Feature of LC75045PE (Back-End LSI)
‹ Reduced PCB area
⇒ CD-DSP / Radio tuning / Audio Signal Processor are integrated
‹ Higher in sound quality than analog radio processing
ASP
Analog Radio
AM/FM
FE
AM / FM
AM/FM IF
Demodulator
FM
Noise
Canceller
FM
Stereo
Decoder
SDRCDS500
AM/FM
FE
IF AGC
Amp
ADC
L
R
DSP
IF
AM / FM
Processor
Demodulator
AM/FM
Noise
Canceller
FM
Stereo
Decoder
L
R
Digital Processing
z Digital signal processing after
AM/FM demodulation
Improves reception sensitivity
z High-precision
digital noise reduction algorithm
Reduces radio noise
‹ Audio-DSP / CD-DSP
z Compliant to various audio processing algorithms (customizable)
z Playbacks compressed audio signal formats (WMA, MP3, AAC)
z Warning sound generator is implemented (Sonar sound, Click sound, etc)
z CD Functions (RF Signal processor for CD-DA/R/RW, CD-Servo, Anti-shock, etc)
‹ Simplified system control (sub-microcontroller is included)
‹ VDD: 1.2V, 3.3V, 5V Package: 256 pin (0.4mm pitch)
www.semiconductor-sanyo.com/network
20090206 - 2/2