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CXD1968AR 参数 Datasheet PDF下载

CXD1968AR图片预览
型号: CXD1968AR
PDF下载: 下载PDF文件 查看货源
内容描述: DVB -T解调器 [DVB-T Demodulator]
分类和应用:
文件页数/大小: 97 页 / 746 K
品牌: SONY [ SONY CORPORATION ]
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CXD1968AR  
5. Improved ACI rejection  
The Channel Selection Filter (CSF) provides additional rejection of adjacent channel interference,  
particularly in ZIF mode where there is reduced folding of ACI signals in-band during the ADC sampling  
process. This can reduce the complexity of the Zero IF tuner baseband filters.  
6. Improved performance with echoes outside guard interval  
The CXD1968AR includes improvements to allow pre-cursive or post-cursive echoes outside the guard  
interval, to meet the latest DTT specifications. This type of channel can occur in SFN networks.  
7. Improved time varying channel performance  
Performance has been improved in doppler channels to meet the latest DTT specifications. The symbol  
synchronization algorithm has also been improved to handle “birth-death” echo fading that is more likely in  
portable reception applications.  
8. Improved reading of reserved TPS data  
There are now separate “odd” and “even” banks of registers that latch the reserved TPS data including  
Cell-ID occurring on odd and even TPS frames. The length of the valid TPS data can also be read to  
determine whether Cell-ID and DVB-H signaling is present.  
9. Standby power saving mode  
The standby power has been reduced further. The design can enter and exit standby mode by I2C control.  
The crystal or clock input is kept running in this mode.  
10. Shutdown power saving mode  
This is a very low power mode, where the crystal oscillator or clock input is stopped by the host processor  
setting the OSCEN input signal to logic 0. This prevents any clock/oscillator interference affecting analog  
TV reception.  
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