MAX7470 Maxim Integrated Products, MAX7470 Datasheet

MAX7470

Manufacturer Part Number

MAX7470

Description

(MAX7469 / MAX7470) HDTV Continuously Variable Anti Aliasing Filters

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX7470.pdf (17 pages)

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The MAX7469/MAX7470 triple-channel, anti-aliasing fil-

ters and buffers are ideal for high-definition (HD) and

standard-definition (SD) television (TV) applications.

Compatible with 1080i, 720p, 720i, 480p, and 480i

scanning system standards and computer format sig-

nals, the MAX7469/MAX7470 support component video

(Y P

(CVBS) and S-video (Y/C).

The MAX7469/MAX7470 limit the input bandwidth for

anti-aliasing and out-of-band noise reduction prior to

digital conversion by an ADC or video decoder. The

MAX7469/MAX7470 frequency response can be contin-

uously varied in 256 linear steps through an I

face from below SD resolution to beyond HD resolution.

The output buffers of the MAX7469/MAX7470 drive a

are AC-coupled, and the outputs can be either DC- or

AC-coupled. The MAX7469 has a gain of 0dB, and the

MAX7470 has a gain of +6dB. Both devices are available

in a 20-pin TQFN package and are fully specified over

the 0°C to +85°C upper-commercial temperature range.

19-0548; Rev 0; 5/06

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.

TOP VIEW

P-P

video signal into a standard 150Ω load. The inputs

HDTV (LCD, PDP, DLP, CRT)

Set-Top Boxes

Personal Video Recorders

Home Theaters

, G

GND

IN1

IN2

IN3

BR, and RGBHV), as well as composite

SEE PIN DESCRIPTION FOR CONNECTION.

________________________________________________________________ Maxim Integrated Products

TQFN (5mm x 5mm)

General Description

*EXPOSED PAD.

MAX7469

MAX7470

Pin Configuration

Applications

*EP

10 OUT1

OUT2

OUT3

C* inter-

HDTV Continuously Variable

♦ Continuously Variable Anti-Aliasing Filter

♦ Supports All Standard Video and Computer Input

♦ Accepts Any Input Sync Format

♦ Buffered Outputs Drive Standard 150Ω Video

♦ DC- or AC-Coupled Outputs

♦ Single +5V Analog and +3.3V Digital Supplies

♦ 5mW Power-Down Mode

♦ 20-Pin TQFN Lead-Free Package

* Purchase of I

Inc., or one of its sublicensed Associate Companies, conveys a

license under the Philips I

nents in an I

Note: All devices are specified over the 0°C to +85°C operating

temperature range.

+ Indicates lead-free packaging.

* EP = Exposed pad.

** Future product—contact factory for availability.

Typical Operating Circuit appears at end of data sheet.

M A X7 4 6 9 U TP +

M A X7 4 7 0 U TP + **

C Standard Specification defined by Philips.

Formats

Load

5MHz to 34MHz in 256 Steps

480i, 480p, 720i, 720p, 1080i

QVGA, VGA, SVGA, XGA, SXGA, UXGA

Y P

Sync on Y, Sync on G, External Sync (Positive

or Negative)

Sync on All Channels

+6dB (MAX7470)

PART

0dB (MAX7469)

Anti-Aliasing Filters

C system, provided that the system conforms to the

, G

C components from Maxim Integrated Products,

BR, RGBHV, Y/C, CVBS

PIN-PACKAGE

20 TQFN-EP*

Ordering Information

C Patent Rights to use these compo-

GAIN (dB)

BUFFER

Features

T2055-4

CODE

PKG

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