5

FN6826.2

August 31, 2010

Pin Descriptions

PIN NUMBER

PIN NAME

PIN DESCRIPTION

+5V for delay circuitry and input amp

Red channel video input

3

GND

0V for delay circuitry supply

Green channel video input

-5V for input amp

Blue channel video input

7

CENABLE

Chip Enable input, active high: logical high enables chip, low disables chip

8

SENABLE

Serial Enable input, active low: logical low enables serial communication

9

SDATA

Serial Data input, logic threshold 1.2V: data to be programmed into chip

10

SCLOCK

Serial Clock input: Clock to enter data; logical; data written on negative edge

11

Blue channel video output

12

-5V for video output buffers

13

Green channel video output

14

GNDO

0V reference for input and output buffers

15

Red channel video output

16

+5V for video output buffers

17

TESTB

Blue channel phase detector output

18

TESTG

Green channel phase detector output

19

TESTR

Red channel phase detector output

20

X2

Gain Select Input: logical high = 2x (+6dB), logical low = 1x (0dB)

Thermal Pad

MUST be tied to -5V. For best thermal conductivity also tie to a larger -5V copper plane (inner

or bottom). Use many vias to minimize thermal resistance between thermal pad and copper

plane. Do not connect to GND - connection to GND is equivalent to shorting the -5V and GND

planes together.

ISL59920, ISL59921, ISL59922, ISL59923