© 2009 Fairchild Semiconductor Corporation

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FMS6646 • Rev.1.0.1

2

Pin Configuration

FMS6646

20L TSSOP

VCC

SD IN2

SD IN3

SD/HD IN1

SD IN1

FcSEL

1

2

3

4

5

6

7

8

20

19

18

17

16

15

14

13

SD/HD IN2

SD/HD IN3

SD OUT2

SD OUT3

SD/HD OUT1

SD OUT1

SD/HD OUT2

SD/HD OUT3

GND

9

10

N/C

12

N/C

N/C

GND

Figure 2. Pin Configuration

Pin Definitions

Pin#

Name

Type

Description

1

SD IN1

Input

SD video input, channel 1

2

SD IN2

Input

SD video input, channel 2

3

SD IN3

Input

SD video input, channel 3

4

N/C

Input

No Connection

5

Input

+3.3V supply

6

Input

Selects filter corner frequency for pins 7, 8, and 9: “0” = SD, “1” = PS

7

SD/HD IN1

Input

Selectable SD or PS video input, channel 1

8

SD/HD IN2

Input

Selectable SD or PS video input, channel 2

9

SD/HD IN3

Input

Selectable SD or PS video input, channel 3

10

N/C

Input

No Connection

11

N/C

Input

No Connection

12

SD/HD OUT3

Output

Filtered SD or PS video output, channel 3

13

SD/HD OUT2

Output

Filtered SD or PS video output, channel 2

14

SD/HD OUT1

Output

Filtered SD or PS video output, channel 1

15

N/C

Input

No Connection

16

GND

Input

Must be tied to ground

17

GND

Input

Must be tied to ground

18

SD OUT3

Output

Filtered SD video output, channel 3

19

SD OUT2

Output

Filtered SD video output, channel 2

20

SD OUT1

Output

Filtered SD video output, channel 1