器件名称: WM8170
功能描述: 3.3V Integrated Signal Processor for Area Array CCDs
文件大小: 453.84KB 共41页
简 介:WM8170 3.3V Integrated Signal Processor for Area Array CCDs
Product Preview Rev 1.0 March 2000
DESCRIPTION
The WM8170 is a 10-bit analogue front end/digitiser IC, which processes and digitises the analogue output signals from area array CCD sensors at pixel sample rates of up to 21MSPS. The device contains input blanking, correlated double sampling (CDS), programmable gain amplifier, black level clamp, on-board voltage reference and a 10-bit, 21MSPS ADC. Two auxiliary 8 bit DACs are provided which may be used for bias voltage control or camera functions such as auto-focus. Fine black level adjustment is performed digitally after the ADC. This digital adjustment will follow DC shifts in the video input without introducing digital correction noise into the image. The WM8170 is designed to interface to a wide range of area array CCDs and can operate at lower power for slower sample rates by setting the reference bias current via an external resistor connected to the ISET pin. All signal timing within the device is derived from the CCD clock signals. The WM8170 is controlled via a configurable serial interface, which is compatible with all of Wolfson’ s imaging devices. The user is able to control the device functions and monitor on-chip register settings via the easy-to-use digital management interface.
FEATURES
10-bit, 21MSPS ADC No missing codes guaranteed Correlated double sampling Programmable gain amplifier Black level clamp Input blanking Two auxiliary 8-b……
