AD720, AD720JP, AD720KP Selling Leads, Datasheet
MFG:AD Package Cooled:SMD D/C:00-99
AD720, AD720JP, AD720KP Datasheet download
Part Number: AD720
MFG: AD
Package Cooled: SMD
D/C: 00-99
AD720, AD720JP, AD720KP
- Table of contents:
Info of AD720
Info of AD720JP
Info of AD720KP
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About AD720
PDF/DataSheet Download
Datasheet: AD720
File Size: 150108 KB
Manufacturer: AD [Analog Devices]
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About AD720JP
PDF/DataSheet Download
Datasheet: AD720JP
File Size: 150108 KB
Manufacturer: AD [Analog Devices]
Download : Click here to Download
About AD7001
PDF/DataSheet Download
Datasheet: AD7001
File Size: 634418 KB
Manufacturer: AD [Analog Devices]
Download : Click here to Download
AD720 General Description
The AD720 and AD721 RGB to NTSC/PAL Encoders convert red, green and blue color component signals into their corre- sponding luminance (baseband amplitude) and chrominance (subcarrier amplitude and phase) signals in accordance with either NTSC or PAL standards. These two outputs are also
combined to provide a composite video output. All three outputs are available separately at voltages of twice the standard signal levels as required for driving 75 Ω reverse terminated cables. The AD721 also features a bypass mode, in which the RGB inputs may bypass the encoder section of the IC via three gain-of-two amplifiers suitable for driving 75 Ω reverse terminated cables.
The AD720 and AD721 provide a complete, fully calibrated function, requiring only termination resistors, bypass capacitors, a clock input at four times the subcarrier frequency, and a composite sync pulse. There are two control inputs: one input selects the TV standard (NTSC/PAL) and the other (ENCD) powers down most sections of the chip when the encoding function is not in use (AD720) or activates the triple bypass buffer to drive the RGB signals when RGB encoding is not required (AD721). All logical inputs are CMOS compatible. The chip operates from ±5 V supplies.
combined to provide a composite video output. All three outputs are available separately at voltages of twice the standard signal levels as required for driving 75 Ω reverse terminated cables. The AD721 also features a bypass mode, in which the RGB inputs may bypass the encoder section of the IC via three gain-of-two amplifiers suitable for driving 75 Ω reverse terminated cables.
The AD720 and AD721 provide a complete, fully calibrated function, requiring only termination resistors, bypass capacitors, a clock input at four times the subcarrier frequency, and a composite sync pulse. There are two control inputs: one input selects the TV standard (NTSC/PAL) and the other (ENCD) powers down most sections of the chip when the encoding function is not in use (AD720) or activates the triple bypass buffer to drive the RGB signals when RGB encoding is not required (AD721). All logical inputs are CMOS compatible. The chip operates from ±5 V supplies.
AD720 Maximum Ratings
Supply Voltage ±VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±6V
Internal Power Dissipation . . . . . . . . . . . . . . . . . . . . . . 600 mW
Operating Temperature Range . . . . . . . . . . . . . . 0°C to +70°C
Storage Temperature Range . . . . . . . . . . . . 65°C to +150°C
Lead Temperature, Soldering 60 sec . . . . . . . . . . . . . . +300°C
Internal Power Dissipation . . . . . . . . . . . . . . . . . . . . . . 600 mW
Operating Temperature Range . . . . . . . . . . . . . . 0°C to +70°C
Storage Temperature Range . . . . . . . . . . . . 65°C to +150°C
Lead Temperature, Soldering 60 sec . . . . . . . . . . . . . . +300°C
AD720 Features
Composite Video Output
Chrominance and Luminance (S-Video) Outputs
No External Filters or Delay Lines Required
Drives 75 Ω Reverse-Terminated Loads
Compact 28-Pin PLCC
Logic Selectable NTSC or PAL Encoding Modes
Automatically Selects Proper Chrominance Filter Cutoff Frequency for Encoding Standard
Logic Selectable Encode or Power-Down Mode (AD720 Only)
Logic Selectable Encode or Bypass Mode (AD721 Only)
Low Power: 200 mW typical
Chrominance and Luminance (S-Video) Outputs
No External Filters or Delay Lines Required
Drives 75 Ω Reverse-Terminated Loads
Compact 28-Pin PLCC
Logic Selectable NTSC or PAL Encoding Modes
Automatically Selects Proper Chrominance Filter Cutoff Frequency for Encoding Standard
Logic Selectable Encode or Power-Down Mode (AD720 Only)
Logic Selectable Encode or Bypass Mode (AD721 Only)
Low Power: 200 mW typical
AD720 Typical Application
RGB to NTSC or PAL Encoding
Drive RGB Signals into 75 Ω Load (AD721 Only)
Drive RGB Signals into 75 Ω Load (AD721 Only)
AD720 Connection Diagram
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