MAX7461EUK+T Maxim Integrated Products, MAX7461EUK+T Datasheet

IC ALARM LOSS-OF-SYNC SOT23-5

MAX7461EUK+T

Manufacturer Part Number
MAX7461EUK+T
Description
IC ALARM LOSS-OF-SYNC SOT23-5
Manufacturer
Maxim Integrated Products
Type
Loss-of-Sync Alarmr
Datasheet

Specifications of MAX7461EUK+T

Applications
Security Systems
Mounting Type
Surface Mount
Package / Case
SOT-23-5, SC-74A, SOT-25
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX7461 single-channel loss-of-sync alarm (LOS)
provides composite video sync detection in NTSC,
PAL, and SECAM standard-definition television (SDTV)
systems. The MAX7461’s advanced detection circuitry
delivers robust performance by preventing false loss-
of-sync alarms due to noise. The device accepts an
AC-coupled composite (CVBS), luma (Y), or any other
video signal with sync, and outputs a logic-level signal.
The open-drain LOS output is low when no sync is
detected and high impedance when sync is detected.
The device operates from a single +5V supply.
The MAX7461 is available in a 5-pin SOT23 package
and is specified for operation over the -40°C to +85°C
temperature range.
19-0553; 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.
Security Systems
Automotive Rear Seat Entertainment (RSE)
Systems
Consumer Electronics
________________________________________________________________ Maxim Integrated Products
General Description
75Ω
0.1µF
C
IN
IN
1
Applications
CLAMP
V
GND
CC
+5V
5
SLICE
LEVEL
3
SYNC
LPF
0.1µF
♦ Accepts CVBS, Y, or Any Other Video with Sync
♦ Loss-of-Sync Alarm Output
♦ Robust Performance in Noisy Environments
♦ Wire-OR Alarm Output
♦ NTSC, PAL, and SECAM
♦ Small 5-Pin SOT23 Package
MAX7461EUK
SYNC
DETECTOR
TOP VIEW
PART
Loss-of-Sync Alarm
MAX7461
SYNC
FILTER
-40°C to +85°C
TEMP RANGE
GND
GND
LOS
IN
1
2
3
Ordering Information
SOT23-5
Functional Diagram
MAX7461
4
LOS
RO
Pin Configuration
V
CC
PIN-
PACKAGE
5 SOT23-5
1kΩ
5 V
4
LOS
CC
Features
PACKAGE
CODE
U5-2
1

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MAX7461EUK+T Summary of contents

Page 1

... Consumer Electronics C IN 0.1µF 75Ω ________________________________________________________________ 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. ♦ Accepts CVBS Any Other Video with Sync ♦ Loss-of-Sync Alarm Output ♦ Robust Performance in Noisy Environments ♦ ...

Page 2

Loss-of-Sync Alarm ABSOLUTE MAXIMUM RATINGS V to GND ..............................................................-0.3V to +6V CC LOS to GND..............................................................-0. GND.................-0.3V to the lower of +6V and (V Continuous Power Dissipation (T = +70°C) A 5-Pin SOT23-5 (derate 7.1mW/°C above +70°C) ...

Page 3

GND = 0.1µ 10kΩ CVSB LOS ALERT TRANSIENT MAX7461 toc01 IN 500mV/div LOS 5V/div t = 10ms/div SYNC HEIGHT LOS ALERT THRESHOLD vs. SUPPLY VOLTAGE 0.20 0.15 0.10 0.05 ...

Page 4

Loss-of-Sync Alarm PIN NAME Video Input. Accepts CVBS, luma (Y), or any video input with sync. AC-couple IN with a series 0.1µ capacitor GND Ground Loss-Of-Sync Output (Open Drain). LOS is in high impedance when sync ...

Page 5

TV TUNER RGB VIDEO SOURCE CAMERA Figure 1. Automotive RSE System _______________________________________________________________________________________ Loss-of-Sync Alarm V CC 1kΩ µC MAX7461 0.1µF 75Ω MAX7461 0.1µF SWITCH MATRIX AND PROCESSING 75Ω MAX7461 0.1µF 75Ω MONITOR 1 MONITOR N 5 ...

Page 6

Loss-of-Sync Alarm CAM 1 CAM 2 CAM N Figure 2. Video Security System 6 _______________________________________________________________________________________ V CC 1kΩ 1 µC N MAX7461 0.1µ 75Ω 1kΩ MAX7461 0.1µF SWITCH MATRIX AND PROCESSING V CC 75Ω 1kΩ MAX7461 0.1µF 75Ω ...

Page 7

... 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. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ______________________7 © 2006 Maxim Integrated Products ...

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