CH7055A

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特征


  • Three 10-bit high speed DACs

  • Sampling frequency up to 200 MHz

  • DAC output current range: 2.0 mA to 36 mA

  • Wide range of input resolutions support for up to 1920x1200@75Hz (i.e. 640x480, 800x600, 1024x768, 1280x1024, 1600x1200 and etc.)

  • Composite Sync Control input

  • Composite Sync output

  • Sync on Green mode support

  • Analog video outputs compliant with VESA VSIS v1r2 specification

  • Power-down mode support

  • Contrast and Brightness adjustment support

  • Serial programmable interface support

  • IO Supply Voltages from 1.8V to 3.3V.

  • Offered in a 40-pin QFN package

描述

Chrontel’s CH7055A is a low-cost, low-power semiconductor device that consists of three separate 10-bit video Digital-to-Analog Converters (DACs), which can convert the digital input signals into analog current outputs at a maximum conversion rate of 200 MHz.

The DACs are based on current source architecture. Sync and DAC Control Logic module receives horizontal and vertical sync input, generates composite sync and internal synchronization control signal. The CH7055A has a Power-down mode to reduce power consumption as required.

The CH7055A is fabricated in a CMOS process that ensures high functionality with low power dissipation. With advanced Image Enhancement module integrated to achieve the modification of the contrast, brightness, etc, the display quality can be flexible adjusted and optimized through the serial programmable interface.

结构图

数据表

应用说明

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技术报告

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规格

Input Interface TTL/Digital RGB

Output Interface  Analog RGB + Csync

Audio Interface   No

Other features   No

Package Type  QFN40

订单信息

Part Number Package Type Operating Temperature Range Minimum Order Quantity

CH7055A-BF  40 QFN, Lead-freeCommercial : -20 to 70°C490/Tray

CH7055A-BFI 40 QFN, Lead-freeIndustrial : -40 to 85°C490/Tray

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昆泰集成电路(上海)有限公司是美国Chrontel,Inc.在上海的全资子公司。Chrontel成立于1986年,是一家从事混合信号集成电路研发与生产的公司,总部位于美国硅谷圣何西,并于世界各地拥有多家子公司和办事机构。我们的产品包括电视解码器,电视编码器,DVI/LVDS/HDMI编码器,数字电视解调器,图像和音频处理,显示...

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