TLV990-28 - 10 位 28MSPS 单通道 AFE，用于 CCD 传感器

TLV990-28是TI德州仪器公司的一款CCD/CMOS信号调节产品，TLV990-28是10 位 28MSPS 单通道 AFE，用于 CCD 传感器，本站介绍了TLV990-28的封装应用图解、特点和优点、功能等，并给出了与TLV990-28相关的TI元器件型号供参考。

TLV990-28 - 10 位 28MSPS 单通道 AFE，用于 CCD 传感器 - CCD/CMOS信号调节 - 模拟前端(AFE) - 德州仪器

产品描述

The TLV990-28 is a complete CCD signal processor/digitizer designed for digital still camera and PC camera applications. The TLV990-28 performs all the analog-processing functions necessary to maximize the dynamic range, corrects various errors associated with the CCD sensor, and then digitizes the results with an on-chip high-speed analog-to-digital converter (ADC).

The key components of the TLV990-28 include: an input clamp circuit for CCD signal, a correlated double sampler (CDS), a programmable-gain amplifier (PGA) with 0 to 36-dB gain range, two internal digital-to-analog converters (DAC) for automatic or programmable optical black level and offset calibration, a 10-bit, 28-MSPS pipeline ADC, a parallel data port for easy microprocessor interface, a serial port for configuring internal control registers, two additional DACs for external system control, and internal reference voltages.

Designed in advanced CMOS process, the TLV990-28 operates from a single 3-V power supply with a normal power consumption of 150 mW at 28 MSPS and 2 mW in power-down mode.

Its very high throughput rate, single 3-V operation, very low-power consumption, and fully-integrated analog-processing circuitry make the TLV990-28 an ideal CCD signal-processing solution for digital still cameras and electronic video camcorder applications.

This device is available in a 48-pin TQFP package and is specified over a -20°C to 75°C operating-temperature range.

产品特性

Single-Chip CCD Analog Front-End
10-Bit, 28-MSPS, Single 3-V Supply Operation A/D Converter
Very Low Power: 150-mW Typical, 2-mW Power-Down Mode
Differential Nonlinearity Error: < ±0.5 LSB Typical
Integral Nonlinearity Error: <±0.75 LSB Typical
Programmable Gain Amplifier (PGA) With 0-dB to 36-dB Gain Range (0.045 dB/Step)
Automatic or Programmable Optical Black Level and Offset Calibration With Digital Filter and Bad Pixel Limits
Additional DACs for External Analog Setting
Serial Interface for Register Configuration
Internal-Reference Voltages
48-Pin TQFP Package
Application
- Digital Still Camera
- Video Camcorder

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