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General Description

The MAX7462/MAX7463 single-channel, standard-defini-

tion, integrated video reconstruction filters and buffers

are ideal for anti-aliasing and digital-to-analog smoothing

video applications or wherever analog video is recon-

structed from digital data (such as cable/satellite/terres-

trial set-top boxes and DVRs).

The MAX7462 includes a disable function, which

places the output in a high-impedance state allowing

multiplexing of multiple output signals. It also has an

external gain control that sets the output buffer gain to

either +6dB or +9.5dB. The higher gain setting allows a

lower DAC output signal than the standard 1V

P-P

sig-

nal. The MAX7463 output buffer has a fixed gain of

+6dB.

The MAX7462/MAX7463 operate from a single +5V

supply and have a flat passband out to 5MHz with a

stopband attenuation of -43dB (typ) at 27MHz.

These devices can drive two standard 150Ω AC-cou-

pled or DC-coupled video loads. The output black level

of the MAX7462/MAX7463 is less than 1V for DC-cou-

pled outputs.

The MAX7462 is available in an 8-pin µMAX

package

and an 8-pin SO package. The MAX7463 is available in

an 8-pin SO package. All devices are specified over

the 0°C to +85°C temperature range.

Applications

Cable/Satellite/Terrestrial Set-Top Boxes

DVRs

Hard-Disk Recorders

Features

♦ Standard-Definition CVBS Video Reconstruction

Filters and Buffers

♦ Passband: -0.05dB at 5MHz

♦ Stopband: -43dB at 27MHz

♦ Selectable Gain: +6dB and +9.5dB (MAX7462)

♦ Output Disable (MAX7462)

♦ Drives 2V

P-P

into Two 150Ω Video Loads

♦ Output Black Level < 1V for DC-Coupled Output

♦ Very Small µMAX and SO Packages

MAX7462/MAX7463

Single-Channel Video Reconstruction Filters

and Buffers

________________________________________________________________ Maxim Integrated Products 1

19-3790; Rev 0; 8/05

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.

Ordering Information

PART

PIN-

PACKAGE

BUFFER GAIN

(dB)

OUTPUT

DISABLE

MAX7462UUA* 8 µMAX

+6/+9.5

selectable

Yes

MAX7462USA* 8 SO

+6/+9.5

selectable

Yes

MAX7463USA 8 SO +6 fixed No

Note: All parts are specified over the 0°C to +85°C temperature

range.

*Future product—contact factory for availability.

µMax is a registered trademark of Maxim Integrated Products, Inc.

Pin Configurations appear at end of data sheet.

75Ω

220µF

= 75Ω

75Ω

OUT

+6dB/+9.5dB

GAIN

DISABLE

GND

LOWPASS

FILTER

+5V

DAC

0.1µF

MAX7462

*OPTIONAL

Functional Diagram

1 2 3 4 5 6 7 8

MAX7462/MAX7463 1

Indice de contenidos

Pagina 1 - MAX7462/MAX7463

General DescriptionThe MAX7462/MAX7463 single-channel, standard-defini-tion, integrated video reconstruction filters and buffersare ideal for anti-ali

Pagina 2

MAX7462/MAX7463 Single-Channel Video Reconstruction Filtersand Buffers2 ______________________________________________________________________________

Pagina 3

MAX7462/MAX7463 Single-Channel Video Reconstruction Filtersand Buffers________________________________________________________________________________

Pagina 4

MAX7462/MAX7463 Single-Channel Video Reconstruction Filtersand Buffers4 ______________________________________________________________________________

Pagina 5

Detailed DescriptionThe MAX7462/MAX7463 filters and buffers the analogCVBS video outputs of DAC video-encoders in applica-tions such as set-top boxes,

Pagina 6

MAX7462/MAX7463 Single-Channel Video Reconstruction Filtersand Buffers6 ______________________________________________________________________________

Pagina 7

MAX7462/MAX7463 Single-Channel Video Reconstruction Filtersand Buffers________________________________________________________________________________

Pagina 8

MAX7462/MAX7463 Single-Channel Video Reconstruction Filtersand BuffersMaxim cannot assume responsibility for use of any circuitry other than circuitry

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