Hyundai HPT-4205, Руководство по обслуживанию

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Plasma TV Service Manual 14/03/2005
12.12.2. Applications
• Wave and pulse shapers for highly noisy environments
• Astable multivibrators
• Monostable multivibrators
12.12.3. Description
The 74LVC14A is a high-performance, low power, low-voltage Si-gate CMOS device and superior to
most advanced CMOS compatible TTL families.
Inputs can be driven from either 3.3 V or 5 V devices. This feature allows the use of these devices as
translators in a mixed 3.3 V/5 V environment.
The 74LVC14A provides six inverting buffers with Schmitt-trigger action. It is capable of transforming
slowly changing input signals into sharply defined, jitter-free output signals.
12.12.4. Pin Description
PIN NUMBER SYMBOL DESCRIPTION
1, 3, 5, 9, 11, 13 1A – 6A Data inputs
2, 4, 6, 8, 10, 12 1Y – 6Y Data outputs
7 GND Ground (0V)
14 V
cc
Positive supply voltage
12.13. LM1086
12.13.1. Description
The LM1086 is a series of low dropout positive voltage regulators with a maximum dropout of 1.5V at
1.5A of load current. It has the same pin-out as National Semiconductor
’ s industry standard LM317.
The LM1086 is available in an adjustable version, which can set the output voltage with only two
external resistors. It is also available in five fixed voltages: 2.5V, 2.85V, 3.3V, 3.45V and 5.0V. The fixed
versions integrate the adjust resistors. The LM1086 circuit includes a zener trimmed band-gap
reference, current limiting and thermal shutdown.
12.13.2. Features
• Available in 2.5V, 2.85V, 3.3V, 3.45V, 5V and Adjustable Versions
• Current Limiting and Thermal Protection
• Output Current 1.5A
• Line Regulation 0.015% (typical)
• Load Regulation 0.1% (typical)
12.13.3. Applications
• SCSI-2 Active Terminator
• High Efficiency Linear Regulators
• Battery Charger
• Post Regulation for Switching Supplies
• Constant Current Regulator
• Microprocessor Supply
12.13.4. Connection Diagrams