© 2009 Fairchild Semiconductor Corporation

www.fairchildsemi.com

FMS6646 • Rev.1.0.3

2

Pin Configuration

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” = HD

(1080p)

7

SD/HD (1080p) IN1

Input

Selectable SD or HD (1080p) video input, channel 1

8

SD/HD (1080p) IN2

Input

Selectable SD or HD (1080p) video input, channel 2

9

SD/HD (1080p) IN3

Input

Selectable SD or HD (1080p) video input, channel 3

10

N/C

Input

No Connection

11

N/C

Input

No Connection

12

SD/HD (1080p) OUT3

Output

Filtered SD or HD (1080p) video output, channel 3

13

SD/HD (1080p) OUT2

Output

Filtered SD or HD (1080p) video output, channel 2

14

SD/HD (1080p) OUT1

Output

Filtered SD or HD (1080p) 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

FMS6646

20L TSSOP

SD IN2

SD IN3

SD/HD 1080p IN1

SD IN1

1

2

3

4

5

6

7

8

20

19

18

17

16

15

14

13

SD/HD 1080p IN2

SD/HD 1080p IN3

SD OUT2

SD OUT3

SD/HD 1080p OUT1

SD OUT1

SD/HD 1080p OUT2

SD/HD 1080p OUT3

GND

9

10

N/C

12

11

N/C

N/C

N/C

GND