MAX7449EUD+ Maxim Integrated, MAX7449EUD+ Datasheet

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MAX7449EUD+

Manufacturer Part Number
MAX7449EUD+
Description
Active Filter Integrated Circuits (ICs)
Manufacturer
Maxim Integrated
Datasheet
1.MAX7449EUD.pdf (6 pages)

Specifications of MAX7449EUD+

Number Of Channels
3
Cutoff Frequency
5 MHz
Supply Voltage - Max
5.25 V
Supply Voltage - Min
4.75 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
TSSOP EP
Minimum Operating Temperature
- 40 C
Factory Pack Quantity
96
The MAX7449, 3-channel, buffered video reconstruc-
tion filter is ideal for anti-aliasing and digital-to-analog
converter (DAC)-smoothing video applications or wher-
ever analog video is reconstructed from a digital data
stream (such as cable/satellite/terrestrial set-top boxes,
DVD players, hard-disk recorders (HDRs), and person-
al video recorders (PVRs)). This device operates from a
single +5V supply and has a flat passband out to 5MHz
with a stopband attenuation of 43dB at 27MHz. This
makes it ideal for use with NTSC, PAL, and standard-
definition digital TV (SDTV) video systems. Each output
is capable of driving two standard 150Ω video loads.
The MAX7449 processes component RGB video signals.
The output video buffers have a fixed gain of +6dB. The
output video drivers can be disabled with an external pin.
The MAX7449 is available in a 14-pin TSSOP package
with an exposed pad, and is specified over the -40°C to
+85°C extended temperature range.
19-2990; Rev 1; 4/06
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.
Set-Top Boxes/HDRs
Desktop Video Editors
Digital VCRs
ENCODER
R
G
B
________________________________________________________________ Maxim Integrated Products
D/A
D/A
D/A
3-Channel Video Reconstruction Filter
General Description
0.1µF
0.1µF
0.1µF
Game Consoles
DVD Players
INC
INA
INB
Applications
GND
LOWPASS
LOWPASS
LOWPASS
MAX7449
FILTER
FILTER
FILTER
EXTSYNC
V
CC
for RGB Component Video
DISABLE
♦ 3-Channel Filter and Buffer for RGB Video Signals
♦ External Sync Signal Input
♦ Filter Response Ideal for NTSC, PAL, and
♦ 43dB (typ) Stopband Attenuation at 27MHz
♦ ±0.75dB (max) Passband Ripple at 5MHz
♦ Blanking Level Voltage on Output <1V
♦ Each Channel Drives Two 150Ω Video Loads
♦ +5V Single-Supply Voltage
♦ Small 14-Pin TSSOP Package
*EP = Exposed pad.
Pin Configuration appears at end of data sheet.
MAX7449EUD
Interlaced SDTV Video Signals
PART
OUTA
OUTB
OUTC
*OPTIONAL CAPACITORS
75Ω
75Ω
75Ω
75Ω
75Ω
75Ω
-40°C to
RANGE
TEMP
+85°C
Ordering Information
*
*
*
*
*
*
Functional Diagram
PIN-
PACKAGE
14 TSSOP-EP*
75Ω
75Ω
75Ω
75Ω
75Ω
75Ω
Features
PACKAGE
CODE
U14E-3
1

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MAX7449EUD+ Summary of contents

Page 1

... G D/A 0.1µF D/A B ________________________________________________________________ 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. for RGB Component Video ♦ 3-Channel Filter and Buffer for RGB Video Signals ♦ External Sync Signal Input ♦ ...

Page 2

Video Reconstruction Filter for RGB Component Video ABSOLUTE MAXIMUM RATINGS V to GND ...........................................................................+6V CC All Other Pins to GND.................................-0. Maximum Current into Any Pin Except V CC Continuous Power Dissipation (T = +70°C) A TSSOP-EP (derate ...

Page 3

Video Reconstruction Filter ELECTRICAL CHARACTERISTICS (continued +4.75V to +5.25V 20pF 0.1µF, GAIN = +6dB MIN MAX PARAMETER LOGIC INPUTS (DISABLE and EXTSYNC) Output Impedance ...

Page 4

Video Reconstruction Filter for RGB Component Video (V = +5V +25°C, unless otherwise noted SUPPLY CURRENT vs. TEMPERATURE 120 INPUTS BIASED TO +2V NO LOAD 110 100 90 80 -40 - TEMPERATURE (°C) ...

Page 5

Video Reconstruction Filter Detailed Description The MAX7449 filters and buffers video-encoder DAC outputs in applications such as set-top boxes, HDRs, DVD players, and digital VCRs. The MAX7449 recon- structs and cleans up component RGB analog video signals. Each channel ...

Page 6

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 6 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2006 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products, Inc ...

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