MAX7461EUK-T Maxim Integrated, MAX7461EUK-T Datasheet

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MAX7461EUK-T

Manufacturer Part Number
MAX7461EUK-T
Description
Video ICs
Manufacturer
Maxim Integrated
Datasheet

Specifications of MAX7461EUK-T

Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
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.
For pricing, delivery, and ordering information, please contact Maxim Direct at
1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
MAX7461EUK
PART
Security Systems
Consumer Electronics
-40°C to +85°C 5 SOT23
TEMP RANGE
75Ω
Ordering Information
General Description
0.1μF
C
IN
IN
PIN-
PACKAGE
1
Applications
CLAMP
PACKAGE
V
GND
CC
CODE
U5-2
+5V
5
LEVEL
3
SYNC
SLICE
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
SYNC
DETECTOR
TOP VIEW
Loss-of-Sync Alarm
MAX7461
SYNC
GND
GND
FILTER
IN
LOS
1
2
3
Functional Diagram
MAX7461
SOT23
4
LOS
Pin Configuration
RO
V
MAX7461
CC
5 V
4
1kΩ
LOS
CC
19-0553; Rev 1; 4/13
Features

Related parts for MAX7461EUK-T

MAX7461EUK-T Summary of contents

Page 1

... Security Systems Consumer Electronics Ordering Information PIN- PART TEMP RANGE PACKAGE MAX7461EUK -40°C to +85°C 5 SOT23 0.1μF 75Ω For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’ ...

Page 2

... Note 3: The LOS detect time is the time that the video input must be continuously absent before LOS goes low (active state). Note 4: The MAX7461 LOS output is accurate with a power-supply noise level below V 2 Operating Temperature Range MAX7461EUK ...................................................-40°C to +85°C + 0.3V) Storage Temperature Range .............................-65°C to +150°C CC Lead Temperature (soldering, 10s) .................................+300° ...

Page 3

... RO = 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 0 4.5 4.7 SUPPLY VOLTAGE (V) Maxim Integrated Typical Operating Characteristics = +25°C, unless otherwise noted.) A LOS DETECT TIME vs. SUPPLY VOLTAGE 3.0 2.5 2.0 1.5 1.0 4.5 4.7 4.9 SUPPLY VOLTAGE (V) 4.9 5.1 5.3 5.5 MAX7461 Loss-of-Sync Alarm LOS RELEASE TIME vs ...

Page 4

... The LOS open-drain output allows the MAX7461 to be used in wired-OR applications as shown in the typical application diagram of Figure the detector P-P PROCESS: BiCMOS . CC Pin Description Applications Information Input Considerations Power-Supply Bypassing to a single-supply plane GND with a 0.1µF capacitor. CC Wired-OR Application Chip Information Maxim Integrated ...

Page 5

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

Page 6

... RoHS status. PACKAGE TYPE 5 SOT23 1kΩ MAX7461 0.1μ 75Ω 1kΩ MAX7461 0.1μ 75Ω 1kΩ MAX7461 0.1μF 75Ω PACKAGE CODE U5-2 μC MONITOR 1 SWITCH MATRIX AND PROCESSING MONITOR N Package Information OUTLINE NO. LAND PATTERN NO. 21-0057 90-0174 Maxim Integrated ...

Page 7

... Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed ...

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