MAX4885

更新时间： 2024-12-01 05:00:11

品牌	Logo	应用领域
美信 - MAXIM		复用器
页数	文件大小	规格书
13页	367K
描述
Complete VGA 1:2 or 2:1 Multiplexer

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MAX4885 数据手册

19-0554; Rev 0; 5/06

Complete VGA 1:2 or 2:1 Multiplexer

General Description

Features

The MAX4885 integrates high-bandwidth analog

switches and level-translating buffers to implement a

complete 1:2 or 2:1 multiplexer for VGA signals. The

device provides switching for RGB, display data chan-

nel (DDC), and horizontal and vertical synchronization

(HSYNC, VSYNC) signals. A low-noise charge pump

with internal capacitors provides a boosted gate-drive

voltage to improve performance of the RGB switches.

♦ +5V Single-Supply Operation

♦ Programmable Voltage Clamp for Open-Drain

DDC Signals

♦ Low 5 (typ) On-Resistance (R, G, B Signals)

♦ Low 13pF (typ) On-Capacitance (R, G, B Signals)

♦ Break-Before-Make Switching Protects Against

In the 1:2 multiplexer mode, HSYNC/VSYNC inputs fea-

ture level-shifting buffers to support low-voltage CMOS

or standard TTL-compatible graphics controllers. In the

2:1 multiplexer mode, the output buffers for the

HSYNC/VSYNC inputs are disabled, allowing bidirec-

tional signaling. In both modes, DDC signals are volt-

age-clamped to an external voltage to provide level

translation and protection. The MAX4885 features a

5µA shutdown mode and is ESD protected to ±8ꢀV

Human Body Model (HBM) on externally routed pins.

Circuit Shorts

♦ ±±kV ꢀBM ꢁSD Protection on ꢁEternally Routeꢂ

Pins

♦ Low 300µA Supply Current (Lower than 1µA with

Charge Pump Disableꢂ)

♦ Space-Saving, Leaꢂ-Free, 32-Pin (5mm E 5mm)

TQFN Package

The MAX4885 is specified over the extended (-40°C to

+85°C) temperature range, and is available in the 32-

pin, 5mm x 5mm TQFN pacꢀage.

Ordering Information

Applications

PKG

CODꢁ

PART

TꢁMP RANGꢁ PIN-PACKAGꢁ

Notebooꢀ Computers

Digital Projectors

Computer Monitors

Servers

MAX4885ETJ+ -40°C to +85°C 32 TQFN-EP*

T3255-4

*EP = Exposed pad.

+Denotes lead-free package.

KVM Switches

Pin Configuration

Typical Operating Circuit

TOP VIEW

24 23 22 21 20 19 18 17

+3.3V

G1 25

R1 26

+5V

0.1 F

V+

MAX4885

14 DDCB2

DDCB1

DDCA1

GND

V+

DDCA2

GND

R0, B0, G0

H0, V0

R1, G1, B1

H1, V1

MAX4885

GRAPHICS

CONTROLLER

VGA

PORT 1

11 V+

DDCA1, DDCB1

DDCA0, DDCB0

*EP

R2, G2, B2

H2, V2

DDCA2, DDCB2

GND

DOCKING

STATION

SEL

VGA

SEL

PORT 2

TQFN

*EXPOSED PADDLE CONNECTED TO GND

________________________________________________________________ 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

中文翻译

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与MAX4885相关器件

型号	品牌	获取价格	描述	数据表
MAX4885AE	MAXIM	获取价格	High-Bandwidth, VGA 2:1 Switch with ±15kV ESD
MAX4885AE	ADI	获取价格	宽带、VGA 2:1开关，具有±15kV ESD保护
MAX4885AEETI+	MAXIM	获取价格	High-Bandwidth, VGA 2:1 Switch with ±15kV ESD
MAX4885E	MAXIM	获取价格	Ultra-Low Capacitance 1:2 VGA Switch with ±15
MAX4885E	ADI	获取价格	超低电容VGA开关，具有±15kV ESD保护
MAX4885EETG+	MAXIM	获取价格	Ultra-Low Capacitance 1:2 VGA Switch with ±15
MAX4885EETG+T	MAXIM	获取价格	Multiplexers/Switches, 2 Func, 2 Channel, BICMOS, PQCC24,
MAX4885ETJ	MAXIM	获取价格	Complete VGA 1:2 or 2:1 Multiplexer
MAX4885ETJ+	MAXIM	获取价格	Complete VGA 1:2 or 2:1 Multiplexer
MAX4885ETJ-T	MAXIM	获取价格	Video Multiplexer, 1 Func, 2 Channel, BICMOS, 5 X 5 MM, 0.80 MM HEIGHT, MO-220WHHD-2, TQFN

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