Features

NTSC, PAL, SECAM, non-standard video synchronous separation

video input level from 0.5VP-P to 2VP-P fixed fixation 70mv slice

Low power supply current-1.5MA typical value.

single 3V to 5V power supply

composite synchronous output

Vertical output

Horizontal output

emergency/corridor output

compatible with macrovision

provides 8 -pin SO packaging

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[ 123] Provide lead -free and annealing (in line with ROHS)

Application

Video amplifier

PCMCIA application

[

123] A/D drive

line drive

Portable computer

High -speed communication

[ 123] RGB application

Broadcasting equipment

Active filtering

Demonstration board

Provide a dedicated demonstration board

horizontal output synchronous separator

EL1883

Video synchronization separator is made of ELANTEC's high -performance simulation CMOS process. The device extracts synchronous timing information from standards and non -standard video inputs and the existence of macro visual veins. It provides compound synchronization, vertical synchronization, emergency/corridor time and horizontal output. When a fixed 70mV synchronous cutting tip section provides synchronous edge detection, the video input level is aged at 0.5VP-P and 2VP-P (synchronous cutting-end amplitude 143mv to 572mv). An external resistance is set to all internal fixed time to adapt to various video standards. The composite synchronous output follows the video of the video, and the first vertical sawtooths of the vertical pre -balanced string output the vertical synchronization pulse along the upper output. For non -standard vertical inputs, when the vertical signal is kept at a low level exceeding the vertical synchronization default delay time, the output default vertical pulse. The horizontal output provides horizontal timing through the front and rear equilibrium pulses.

EL1883 is packaged in 8-needle so, which can run within the temperature range of -40 ° C to+85 ° C.

Order information

Note: Intersil lead+annealing products use a special lead -free material group; mold/mold connection material and 100%matte tin -plated board final decoration, comply with the ROHS standard, and are compatible with SNPB and lead -free welding operations. The lead-free product is classified as MSL under the peak of lead-free return welding, which meets or exceeded the lead-free requirements of IPC/JEDEC J STD-020.

Typical performance curve

Note:

B, compound synchronous output for the compound synchronous output for so Delayed and reproduced all video input synchronization pulses.

C. Vertical synchronization front edge and the first vertical sawtooth pulse front edge of the edge of the edge, with delayed communication.

D. The corridor becomes low, and the back edge of the synchronous pulse in the video has a fixed pulse width. Note that for the sawtooth pulses during vertical periods, the corridor starts from the rising edge of the sawtooth pulse (with delayed communication).

E. Horizontal synchronous output generates a real H " pulse with a nominal width of 5 microseconds. It has the same delay as composite.

Application information

Video input

The next page shows a simplified frame diagram.

AC coupling video signal enters the video in PIN 2 through C1