SDA9257中文資料西門子數據手冊PDF規(guī)格書

Features

● All settings made by I2C Bus

● PLL lock-in behavior can be set to TV- or VCR mode

● Automatic clamping of CVBS input

● Provides all horizontal and vertical sync signals and clocks for operating PAMUX, analog color decoders, the A/D converters, PSND and Featurebox

● Free-running capability

● Frequency generator function possible with digitally adjustable frequency

● Lock-in function of the PLL on CVBS also possible with externally supplied 24-MHz or 27-MHz clock

● Multi-standard operation (50 Hz, 60 Hz; PAL, NTSC, SECAM)

● Vertical noise suppression and 50/60-Hz detection

● Serial digital output for actual frequency value and CVBS-black level

Applications

● Memory based image improvement with analog color decoder

● Memory based image improvement with digital multi-standard decoder

● Free-running sync generator

● Digital frequency synthesizer