MAX9503 Maxim Integrated Products, MAX9503 Datasheet

MAX9503

Manufacturer Part Number

MAX9503

Description

DirectDrive Video Amplifier

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX9503.pdf (13 pages)

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The MAX9503 filters and amplifies standard-definition

video signals. Maxim’s DirectDrive™ technology elimi-

nates large output-coupling capacitors and sets the

video black level to ground. The input of the MAX9503

can be directly connected to the output of a video

digital-to-analog converter (DAC). The MAX9503 pro-

vides a compact, integrated, and low-power solution.

An internal reconstruction filter smoothes the steps and

reduces the spikes on the video signal from the DAC.

The reconstruction filter typically has 3dB attenuation at

9MHz and 50dB attenuation at 27MHz, and ±1dB pass-

band flatness to 5.5MHz.

Maxim’s DirectDrive uses an integrated charge pump

and a linear regulator to create a clean negative power

supply to drive the sync below ground. The charge

pump injects so little noise into the video output that the

picture is visibly flawless.

The MAX9503 is available with +6dB (MAX9503G) and

+12dB (MAX9503M) gains. The device operates from a

2.7V to 3.6V single supply and features a 10nA low-

power shutdown mode.

The MAX9503 is offered in space-saving 16-pin QSOP

and 16-pin TQFN packages and is specified over the

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

19-3676; Rev 0; 5/05

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.

Digital Still Cameras

Mobile Phones/Smartphones

Security Cameras

Portable Media Players

Space-Constrained, Low-Power Portable

Devices

________________________________________________________________ Maxim Integrated Products

0 TO 50mV

General Description

Applications

DirectDrive Video Amplifier with

VIDIN

BUFFER

MAX9503

LOWPASS

FILTER

♦ DC-Coupled Output

♦ Direct Connection to Video DAC

♦ Video Output Black Level Set to Ground

♦ Video Reconstruction Filter with 50dB

♦ Preset Gain

♦ 10nA Shutdown Supply Current

♦ 2.7V to 3.6V Single-Supply Operation

*All devices are specified over the -40°C to +85°C operating

temperature range.

Functional Diagram/Typical Operating Circuit and Pin

Configurations appear at end of data sheet.

MAX9503GEEE

MAX9503GETE

MAX9503MEEE

MAX9503METE

REGULATOR

CHARGE

Attenuation at 27MHz

LINEAR

PUMP

AMP

Reconstruction Filter

6dB (MAX9503G)

12dB (MAX9503M)

PART*

VIDOUT

PIN-

PACKAGE

16 QSOP

16 TQFN

16 QSOP

16 TQFN

MAX9503G: 6dB

MAX9503M: 12dB

Ordering Information

-0.1V TO

+0.1V

PKG CODE

Block Diagram

T1633-4

E16-4

Features

TOP MARK

ACU

ACV

—

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