LM1881
LM1881 Description
Video Sync Separator
LM1881 Vendor
National Semiconductor
LM1881 Categories
Video Sync Separators
LM1881 Features
AC coupled composite input signal
>10 k input resistance
<10 mA power supply drain current
Composite sync and vertical outputs
Odd/even field output
Burst gate/back porch output
Horizontal scan rates to 150 kHz
Edge triggered vertical output
Default triggered vertical output for non-standard video signal (video games-home computers)
-40°C to +85°C operation (LM1881-X)
LM1881 Description
The LM1881 Video sync separator extracts timing information including composite and vertical sync, burst/back porch timing, and odd/even field information from standard negative going sync NTSC, PAL* and SECAM video signals with amplitude from 0.5V to 2V p-p. The integrated circuit is also capable of providing sync separation for non-standard, faster horizontal rate video signals. The vertical output is produced on the rising edge of the first serration in the vertical sync period. A default vertical output is produced after a time delay if the rising edge mentioned above does not occur within the externally set delay period, such as might be the case for a non-standard video signal.
LM1881 Datasheet and Application Notes
LM1881 Datasheet
Parameter Value
Temperature Min (deg C) 0000000000.0000
Temperature Max (deg C) 70
Function Sync Separator
Supply Voltage (Volt) 5
OtherSupply Voltage 5V to 12V
DisplayType CRT
Products related to LM1881
LM1881N LM1881M-X LM1881N-X LM1881MX
LM1881M LM1881MX-X
