LM98714BCMTX

• LVDS/CMOS output
• LVDS/CMOS input clock or ADC input clock at pixel rate
• Processing of CDS or S/H CCD or CIS sensors
• Independent gain/offset correction for each channel
• Digital black level correction loop for each channel
• Programmable input clamping voltage
• Flexible CCD/CIS sensor timing generator

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LM98714 is a fully integrated, high-performance 16-bit, 45 MSPS signal processing solution for digital color copiers, scanners, and other image processing applications. High-speed signal throughput is achieved by utilizing correlated dual sampling (CDS), which is typically employed with CCD arrays, or sample-hold (S/H) inputs (contact image sensors and CMOS image sensors). The signal path uses an 8-bit programmable gain amplifier (PGA), an A+/- 9-bit offset-corrected DAC, and an independently controlled digital black-level correction loop for each input. PGA and offset DAC are independently programmed to allow unique gain values that are offset every three inputs. signal is then transmitted to a 45MHZ high-performance analog-to-digital converter (ADC). The fully differential processing channel, which shows excellent noise immunity, has a very low noise layer of 74 dB. The 16-bit ADC has excellent dynamic performance and is transparent LM98714 the image reproduction chain.

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• Multifunctional peripherals
• Fax equipment
• Flatbed scanner or handheld color scanner
• High-speed document scanner