EL4501

FN7327 Rev 3.00

Page 13 of 20

November 12, 2010

8

FSEL

Input

Enable/bypass internal brick wall filter; a logic high is

used to enable the filter; a logic low to disable it

CIRCUIT 6

9

SYNC IN

Input

Input to the sync separator; connects to the video

source via a coupling capacitor or to a color burst input

filter

CIRCUIT 7

10

LOS

Output

Loss of signal output; goes high if no input video signal

is detected

CIRCUIT 8

11

COMPOSITE

Output

Composite sync output

Reference circuit 8

12

HORIZONTAL

Output

Horizontal sync output

Reference circuit 8

13

VERTICAL

Output

Vertical sync output

Reference circuit 8

14

ODD/EVEN

Output

Odd/even field indicator output

Reference circuit 8

15

BACK PORCH

Output

Back porch output

Reference circuit 8

16

SLICE MODE

Input

Low = 50% slicing level; high = 70mV fixed slicing level Reference circuit 8

17

SYNC AMP

Output

Amplitude of sync tip; can be used to control AGC

circuit

CIRCUIT 9

18

VSD

Input

Digital power supply; nominally +5V

CIRCUIT 10

19

VS

Input

Analog power supply; nominally +5V

Reference circuit 10

Pin Descriptions

PIN

NUMBER

PIN NAME

PIN TYPE

PIN DESCRIPTION

EQUIVALENT CIRCUIT

GND

GND

GND

GND

GND