数字电视解码芯片及整机厂方案.ppt

1、,数字电视解码芯片及整机厂方案,邓泽学(80874197) 2007/6/20,1、ATi 2、conexant 3、ST 4、Broadcom 5、Sigma design,高清解码芯片,MIPS CPU,Multimedia Port,CA,Peripheral Controller,Demux,Memory Controller,656 In (x2),2D/3D,MMU,Flexbus,IR,PCI,AC-97,USB,EIDE,LPC,I2S / I2C,Smart Cards (x3),Serial,Audio,AC-3 / MPEG-2,I2S (x2),S/PDIF (x2),

2、Mixer,Channel Two,Channel One,VIP,4 x PID Filter,Section Filter,Micro- controller,Video,Video Scaler,Video Scaler,DVI,Quad DAC,Triple DAC,Graphics Scaler,656 Out,Alpha Blend,1394 / HSDP,XPort (x4),DirecTV,DVB,Multi-2,16K/16K Caches,MAC,Execu- tion,CSS,MPEG (x2),Parser,IDCT,MC,Compre ssion,Quad Decod

3、e,Clocks,Power Mgmt,PLLs,Arbi- tration,Set-up Engine,Render Pipe,3DES,DES,ATi X226,CX24177 “TRINITY”,DDR,EEPROM,Flash,Stereo DAC,CVBS,UHF RCU Detect,IR Blaster,S/PDIF,Pr,Pb,Y,L/R,IR detect,HDMI,CVBS,CX20552 USB 2 Phy.,USB 2,CX20552 USB 2 Phy.,USB 2,Embedded CA Sub. System,TS / SPI,TS1 IN,Advanced Al

4、l Digital Dual HD DVR, AVC H.264 & Decode, DOCSIS2.0 and OOB,CX24450 “TAHOE” .,PCI Data OOB,SDRAM,Flash,CX24951 DOCSIS2.0 Cable Modem.,I/O,Hard Disk Drive,SATA,CX24182 MPEG-4 AVC H.264 HPL4 Coprocessor,DDR,I/O,CLKOUT,TSOUT,YUVIN,CX24182 MPEG-4 AVC H.264 HPL4 Coprocessor,DDR,CX24210 Digital Broadcast

5、 Tuner,CX24210 Digital Broadcast Tuner,1394 Mac./Phy.,TS OUT,FireWire,Ch. 3 / 4,SDRAM,CX24210 Digital Broadcast Tuner,QAM 1,QAM 2,TS2 IN,CX24277 “PECOS”,2x 32bit wide DDR2,EEPROM,Flash,CVBS,UHF RCU Detect,IR Blaster,S/PDIF,Pr,Pb,Y,L/R,IR detect,HDMI,CVBS,USB 2,USB 2,Embedded CA Sub. System/ Comcast

6、CA,TS / SPI,TS1 IN,CX24452 “Sunburst” DOCSIS 2.0 .,PCI Data OOB,SDRAM,Flash,Hard Disk Drive,SATA#1,CX24210 Digital Broadcast Tuner,1394 Mac./Phy.,TS OUT,FireWire,Ch. 3 / 4,CX24210 DOCSIS Tuner,CX24210 Digital Broadcast Tuner,QAM 1,QAM 2,Phase 2: Advanced All Digital Dual HD DVR, Dual AVC H.264 & Dua

7、l VC-1 Decode,CX24184 MPEG-4 AVC H.264 HPL4 VC-1 HPL3 Coprocessor,DDR,I/O,CLKOUT,TSOUT,YUVIN,TS2 IN,TS3 IN,Hard Disk Drive,SATA#2,STi7109,BCM7038,EM862xL SeriesDigital Media Processors with H.264 and WMV9/VC-1,SMP863x SeriesSecure Media Processors with H.264 and WMV9/VC-1,标清解码芯片,1、ST 2、NEC 3、conexan

8、t 4、IBM 5、cheertek,Sti5518,芯片特点,1、MCU，cache大小，2K 2、内置编码器，支持PAL、NTSC、SECAM，6个DAC，输出电平可编程。 3、OSD层：5层，8bit； 4、内层接口：SDRAM，64Mbit 5、音频解码：支持DVB、AC3，6通道音量控制；光纤输出， 6、支持anti-trick，混色和透明度设置 7、支持Closed caption, teletext, WSS 等,CX24153 IC Architecture,Serial,Smart Card,GPIO/I2C/ PWM/SPI,TS Switch,Memory Control

9、ler 16/32-bit SDR,MPML Video Decoder,Audio Decoder MPEG/Dolby,IR,ARM 920T CPU with 16 K I+D Cache MMU,I/O Bus,Demux,SmartDAA Interface,TV Display Refresh and Compositing,NTSC/PAL SECAM TV Encoder,CX20493,Flash,EEPROM,SDRAM,PCM Output,Chl.3/4 Re-mod,GXA 2D Graphics,QAM,EJTAG Protect,3DES,OTP,Boot ROM,整机厂方案,同洲： 主要是ST，有线以QAM5516 地面采用低成本方案：如M9700、CT216等 高清：ATi X225， 现STi7100 IPTV: Broadcom,创维： 有线：QAM5516，Sti5518， Sti5105在开发 九洲： 有线：QAM5516，STI5518（采用一个产品型号DVC-2018+，DVC