Texas Instruments LM98714CCMT/NOPB

Description
The 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 with an innovative architecture utilizing Correlated Double Sampling (CDS), typically employed with CCD arrays, or Sample and Hold (S/H) inputs (for Contact Image Sensors and CMOS image sensors). The signal paths utilize 8-bit Programmable Gain Amplifiers (PGA), a 19-Bit offset correction DAC, and independently controlled Digital Black Level correction loops for each input. The PGA and offset DAC are programmed independently, allowing unique values of gain and offset for each of the three inputs. The signals are then routed to a 45 MHz high-performance analog-to-digital converter (ADC). The fully differential processing channel shows exceptional noise immunity, having a very low noise floor of -74 dB. The 16-bit ADC has excellent dynamic performance, making the LM98714 transparent in the image reproduction chain.

Features
LVDS/CMOS Outputs
LVDS/CMOS Pixel Rate Input Clock or ADC Input Clock
CDS or S/H Processing for CCD or CIS Sensors
Independent Gain/Offset Correction for Each Channel
Digital Black Level Correction Loop for Each Channel
Programmable Input Clamp Voltage
Flexible CCD/CIS Sensor Timing Generator

Applications
Multi-Function Peripherals
Facsimile Equipment
Flatbed or Handheld Color Scanners
High-Speed Document Scanner