AK4709 datasheet(6/42 Pages) AKM

Part #	AK4709

Description	Low Power AV SCART Switch

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Manufacturer	AKM [Asahi Kasei Microsystems]

Direct Link	http://www.akm.com

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[AK4709]

MS1319-

E-00

2011/07

- 6 -

PIN/FUNCTION

No.

Pin Name

I/O

Function

1

VCRC

O

Chrominance Output Pin for VCR

2

VSS3

-

Video Ground Pin , 0V

3

TVVOUT

O

Composite/Luminance Output Pin for TV

4

VVD2

-

Video Power Supply Pin #2: 3.13V ~ 3.47V

Normally connected to VSS3 with a 0.1

μF ceramic capacitor in parallel with a 4.7μF

electrolytic capacitor.

5

TVRC

O

Red/Chrominance Output Pin for TV

6

TVG

O

Green Output Pin for TV

7

TVB

O

Blue Output Pin for TV

8

VVD1

-

Video Power Supply Pin #1: 3.13V ~ 3.47V

Normally connected to VSS3 with a 0.1

μF ceramic capacitor in parallel with a 4.7μF

electrolytic capacitor.

9

ENCB

I

Blue Input Pin for Encoder

10

ENCG

I

Green Input Pin for Encoder

11

ENCRC

I

Red/Chrominance Input Pin #1 for Encoder

12

ENCC

I

Chrominance Input Pin #2 for Encoder

13

ENCV

I

Composite/Luminance Input Pin #1 for Encoder

14

ENCY

I

Composite/Luminance Input Pin #2 for Encoder

15

TVVIN

I

Composite/Luminance Input Pin for TV

16

VCRVIN

I

Composite/Luminance Input Pin for VCR

17

VCRFB

I

Fast Blanking Input Pin for VCR

18

VCRRC

I

Red/Chrominance Input Pin for VCR

19

VCRG

I

Green Input Pin for VCR

20

VCRB

I

Blue Input Pin for VCR

21

VP

-

Blanking Power Supply Pin, 10.8V ~ 13.2V

The VP pin must be connected to the Analogue 12V power supply via a 10ohm resistor

and with a 0.1µF ceramic capacitor in parallel with a 1µF electrolytic capacitor to

VSS1, as shown in Figure 20.

22

VCRSB

I/O

Slow Blanking Input/Output Pin for VCR, refer to Table 20.

A 470ohm ±5% resistor must be connected between the VCRSB pin and SCART

connector.

23

TVSB

O

Slow Blanking Output Pin for TV

A 470ohm ±5% resistor must be connected between the TVSB pin and SCART

connector.

24

VSS1

-

Audio Ground Pin , 0V

25

VD1

-

Audio Power Supply Pin: 3.13V ~ 3.47V

Normally connected to VSS1 with a 0.1

μF ceramic capacitor in parallel with a 4.7μF

electrolytic capacitor.

26

VCRINR

I

Rch VCR Audio Input Pin

27

VCRINL

I

Lch VCR Audio Input Pin

28

TVINR

I

Rch TV Audio Input Pin

29

TVINL

I

Lch TV Audio Input Pin

30

VCROUTR

O

Rch Analog Output Pin #1

31

VCROUTL

O

Lch Analog Output Pin #1

32

TVOUTR

O

Rch Analog Output Pin #2

33

TVOUTL

O

Lch Analog Output Pin #2

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