LM98714中文资料具有集成 CCD/CIS 传感器定时发送器和 LVDS 输出的 3 通道 16 位 45 MSPS 数字复印机 AFE数据手册TI规格书

描述 Description

The LM98714 is a fully integrated, high performance 16-Bit, 45 MSPS signal processingsolution for digital color copiers, scanners, and other image processing applications. High-speedsignal 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 ImageSensors and CMOS image sensors). The signal paths utilize 8 bit Programmable Gain Amplifiers (PGA),a ±9-Bit offset correction DAC and independently controlled Digital Black Level correction loopsfor each input. The PGA and offset DAC are programmed independently allowing unique values of gainand offset for each of the three inputs. The signals are then routed to a 45 MHz high performanceanalog-to-digital converter (ADC). The fully differential processing channel shows exceptionalnoise immunity, having a very low noise floor of –74dB. The 16-bit ADC has excellent dynamicperformance making the LM98714 transparent in the image reproduction chain.

特性 Features

• LVDS/CMOS Outputs
• CDS or S/H Processing for CCD or CIS Sensors
• Digital Black Level Correction Loop for Each Channel
• Flexible CCD/CIS Sensor Timing Generator
• Maximum Input Level: 1.2 or 2.4 Volt Modes
• ADC Resolution: 16-Bit
• INL: ±23 LSB (Typ)
• PGA Gain Steps: 256 Steps
• Analog DAC Resolution: ±9 Bits
• Digital DAC Resolution: ±6 Bits
• SNR: –74dB (at 0 dB PGA Gain)
• Operating Temp: 0 to 70°C
• Supply Voltage: 3.3 V Nominal (3.0 V to 3.6 VRange)

简介

LM98714属于集成电路（IC）的模拟前端（AFE）。由TI制造生产的LM98714模拟前端（AFE）模拟前端 (AFE) 是一种用于信号调节的半导体器件，由模拟放大器、运算放大器、滤波器和集成电路构成。这种可配置功能块能连接各种传感器。分辨率范围从 8 位至 42 位不等，通道数范围为 1 至 256 个。