MAX7481ETI+T

更新时间： 2024-11-24 13:11:03

品牌	Logo	应用领域
美信 - MAXIM		便携式
页数	文件大小	规格书
13页	861K
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MAX7481ETI+T 数据手册

19-0671; Rev 0; 11/06

Bidirectional Video Filters/Buffers for Composite

and S-Video Portable Media Devices

1/MAX7482

General Description

Features

The MAX7481/MAX7482 bidirectional video filters/

buffers provide the reconstruction filter and line drive

buffer for both composite (CVBS) and S-Video (Y/C)

video signals in playback mode, and anti-aliasing in

record mode for portable media devices. Each channel

consists of a lowpass filter and an output buffer capa-

♦ Composite and S-Video, Video-Playback and Video-

Record Interface for Portable Video Devices

♦ Saves Space by Sharing Connectors in Portable

Devices

♦ DirectDrive

Eliminates Expensive AC-Coupling Capacitors

Blanking Level at Ground with Single Supply

ble of driving a full 2V

video signal into one standard

P-P

150Ω load (DC-coupled to ground). In record mode,

the MAX7481/MAX7482 output buffers have a gain of

+6dB. In playback mode, the MAX7481 output buffers

have a gain of +6dB and the MAX7482 output buffers

have a gain of +7dB.

♦ Composite and Y/C Signals

♦ Advanced Power-Down Modes for Extended

Battery Life

♦ Low Supply Current in Shutdown Mode, < 1µA (typ)

♦ Filter Response Ideal for NTSC and PAL

♦ +6dB (MAX7481) or +7dB (MAX7482) Gain

♦ +2.7V to +3.6V Single-Supply Operation

♦ Small, 28-Pin, TQFN Package (5mm x 5mm)

Ordering Information

The MAX7481/MAX7482 feature DirectDrive™ by utilizing

an internal negative charge pump and regulator to main-

tain the output blanking level at ground, eliminating the

need for a negative supply voltage, a large output cou-

pling capacitor, or a sag correction configuration.

The MAX7481/MAX7482 operate from a single +2.7V to

+3.6V power supply. These devices are available in a

space-saving 28-pin TQFN package and operate over

the -40°C to +85°C extended temperature range.

PIN-

PACKAGE

PKG

CODE

PART

TEMP RANGE

Applications

MAX7481ETI+ -40°C to +85°C 28 TQFN-EP*

MAX7482ETI+ -40°C to +85°C 28 TQFN-EP*

T2855-6

Portable Media Devices

Digital Camcorders

Digital Cameras

+Denotes lead-free package.

*EP = Exposed pad.

Pin Configuration appears at end of data sheet.

Simplified Block Diagram

OUT4

IN1

VIDEO

ADC

PLAYBACK SIGNAL FLOW

MAX7481

MAX7482

VIDEO

DAC

LPF

OUT1

IN3

IN5

P/R

CVBSON

YCON

VIDEO

PROCESSOR

OUT3

CONTROL

LOGIC

OUT2

IN4

IN2

VIDEO

DAC

LPF

OUT5

VIDEO

ADC

RECORD SIGNAL FLOW

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...13

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与MAX7481ETI+T相关器件

型号	品牌	获取价格	描述	数据表
MAX7481ETI-T	MAXIM	获取价格	暂无描述
MAX7482	MAXIM	获取价格	Bidirectional Video Filters/Buffers for Composite and S-Video Portable Media Devices
MAX7482ETI+	MAXIM	获取价格	Bidirectional Video Filters/Buffers for Composite and S-Video Portable Media Devices
MAX748A	MAXIM	获取价格	3.3V, Step-Down, Current-Mode PWM DC-DC Converters
MAX748A	ADI	获取价格	3.3V、降压型、电流模式PWM DC-DC转换器
MAX748AC/D	MAXIM	获取价格	3.3V, Step-Down, Current-Mode PWM DC-DC Converters
MAX748ACPA	MAXIM	获取价格	3.3V, Step-Down, Current-Mode PWM DC-DC Converters
MAX748ACPA+	MAXIM	获取价格	Switching Regulator, Current-mode, 2A, 212.5kHz Switching Freq-Max, CMOS, PDIP8, PLASTIC,
MAX748ACWE	MAXIM	获取价格	3.3V, Step-Down, Current-Mode PWM DC-DC Converters
MAX748ACWE+	MAXIM	获取价格	Switching Regulator, Current-mode, 2A, 180kHz Switching Freq-Max, CMOS, PDSO16, 0.300 INCH

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