EL1881
EL1881 is Sync Separator manufactured by Renesas.
Sync Separator, Low Power
The EL1881 video sync separator is manufactured using Elantec’s high performance analog CMOS process. This device extracts sync timing information from both standard and non-standard video input. It provides posite sync, vertical sync, burst/back porch timing, and odd/even field detection. Fixed 70m V sync tip slicing provides sync edge detection when the video input level is between 0.5VP-P and -2VP-P (sync tip amplitude 143m V to 572m V). A single external resistor sets all internal timing to adjust for various video standards. The posite sync output follows video in sync pulses and a vertical sync pulse is output on the rising edge of the first vertical serration following the vertical pre-equalizing string. For non-standard vertical inputs, a default vertical pulse is output when the vertical signal stays low for longer than the vertical sync default delay time. The odd/even output indicates field polarity detected during the vertical blanking interval. The EL1881 is plug-in patible with the industry-standard LM1881 and can be substituted for that part in 5V applications with lower required supply current.
The EL1881 is available in the 8 Ld PDIP and SOIC packages and is specified for operation over the full -40°C to +85°C temperature range
Pinout
EL1881 (8 LD PDIP, SOIC)
TOP VIEW
POSITE SYNC OUT 1 POSITE VIDEO IN 2 VERTICAL SYNC OUT 3 GND 4
8 VDD 5V 7 ODD/EVEN OUTPUT
6 RSET 5 BUST/BACK
PORCH OUTPUT
FN7018 Rev 2.00 September 15, 2011
Features
- NTSC, PAL, SECAM, non-standard video sync separation
- Fixed 70m V slicing of video input levels from 0.5VP-P to
2VP-P
- Low supply current
- 1.5m A typ.
- Single +5V supply
- posite, vertical sync output
- Odd/even field output
- Burst/back porch output
- Available in 8 Ld PDIP and SOIC packages
- Pb-free available (Ro HS pliant)
Applications
- Video amplifiers
- PCMCIA applications
- A/D drivers
- Line drivers
- Portable puters
- High-speed...
