台湾明智类比公司模拟视频放大器IA181规格

Intelligent Analog IA274

Low voltage mixer with 12dB video driver

Features

Low voltage operation 2.8V~5.5V Internal Y/C mix circuit

Transparent clamp Y input, bias C input AC or DC-coupled output

Low stand-by current: 6.5mA typical at 3.0V Dual video load drive (75 ohm x 2)

Low power save current: 0.8mA typical at 3.0V SAG correction reduce output capacitance RoHS compliant Pb-free MSOP-8 package

Applications

DVD player Security camera Set-top box

Portable media player Communication device Digital still camera

Block Diagram

CMUTE YIN CIN SAG

GND

VOUT

VCC PS

Description

IA274 is a high performance, low voltage, and low power consumption mixer with 12dB video driver. It is suitable for portable product that needs to connect TV directly. It has C_ mute function that can turn off chroma signal and it is suitable for day / night security camera and video-enabled device. Its power save control is suitable for portable low power system. The output also can be configured as AC or DC-coupled output. With DC-coupled, it can save board space. With AC-coupled, it can reduce stand-by current consumption.

Absolute Maximum Rating

Electrical Specifications VCC=+3.0V, Ta=25℃, R L=150 ohm, C L=0.1uF

Pin Description

Power Save Control Pin Function

C_ mute Control Pin Function

Typical Applications

Application 1: VCC=2.8V~5.5V, AC-coupled output and driving one 75 ohm video load

VIDEO OUT

Application 2: VCC=2.8V~5.5V, AC-coupled output and driving two 75 ohm video loads

VIDEO OUT1VIDEO OUT2

Application 3: VCC=2.8V~5.5V, DC-coupled output and driving one 75 ohm video load

VIDEO OUT

Application 4: VCC=2.8V~5.5V , DC-coupled output and driving two 75 ohm video loads

VIDEO OUT2

VIDEO OUT1

Compatible Device

The IA274 is pin-to-pin and function compatible with NJRC NJM2274

MSOP-8 Package Dimension

MSOP-8 Package and Land Pattern

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