描述 Description

The HI1179 is an 8-bit CMOS analog-to-digital converter for video use that features a sync clamp function. The adoption of a 2-step parallel method realizes low power consumption and a maximum conversion speed of 35 MSPS, allowing up to 8x over sampling of NTSC and PAL signals.

特性 Features

? Resolution 8-Bit . . . . . . . . . . . . . . . . . . ±0.5 LSB (DNL)

? ENOB at fIN = 1MHz . . . . . . . . . . . . . . . . . . . . . . 7.6 Bits

? Maximum Sampling Frequency . . . . . . . . . . . 35 MSPS

? Low Power Consumption 80mW (at 35 MSPS Typ) (Reference Current Excluded)

? Built-In Input Clamp Function (DC Restore)

? No Sample/Hold Required

? Internal Voltage Reference

? Input CMOS Compatible

? Three-State TTL Compatible Output

? Single Power Supply . . . . . . . . . . . . . . . . . . . . . . . . .+5V

? Low Input Capacitance (Typ) . . . . . . . . . . . . . . . . . 8pF

? Reference Impedance (Typ) . . . . . . . . . . . . . . . . . 330?

? Direct Replacement for Sony CXD1179

Applications

? Desktop Video

? Multimedia

? Video Digitizing

? Image Scanners

? Low Cost High Speed Data Acquisition Systems