GS9024 Data Sheet

521-70-10

February 2005

14 of 16

6. Applications Information

The Typical Application Circuit shown on page 14 is useful for both SMPTE and

DVB-ASI signals. The two AGC capacitors shown however increase the AGC time

constant from the original times shown in earlier SMPTE-only application circuits.

In this case a minimum off-time of 50ms is needed when break-before-make

switching is used at the input in order for the AGC voltage to recover.

7. Typical Application Circuit

HIGH Z

SDO

SDO

CD_ADJ

OEM

AGC+

SSI/CD

AGC-

SDI

SDI

DATA OUT

DATA OUT

1

2

3

4

5

6

7

1n

10n

10n

50

75

37.5

75

75

75

75

100k

POT

(optional)

100n

SDI INPUT

30 - 622Mb/s

EYE MONITOR

OUTPUT

14

13

12

11

10

9

8

GS9024

All resistors in ohms,

all capacitors in farads,

unless otherwise shown.

100n