AK4712EN View Datasheet(PDF) - Asahi Kasei Microdevices

Part Name

Description

Manufacturer

AK4712EN

Stereo Cap-less LINE-Amp and HD Video-Amp

Asahi Kasei Microdevices 

[AK4712]

PIN/FUNCTION

No. Pin Name

I/O

Function

Video Negative Voltage Output Pin

1 VVEE

O

Connect to ground via a 1.0 μF low ESR (Equivalent Series Resistance) capacitor

over temperature. When this capacitor is polarized, the positive polarity pin should

be connected to the ground pin. Non-polarized capacitors can also be used.

Internal regulator output Pin for Video Charge Pump.

2 VREG

O

Connect to ground via a 1.0 μF low ESR (Equivalent Series Resistance) capacitor

over temperature. When this capacitor is polarized, the positive polarity pin should

be connected to the ground pin. Non-polarized capacitors can also be used.

3 HDY

O Green/Y Output Pin

4 HDPR

O Red/Pr Output Pin

5 HDPB

O Blue/Pb Output Pin

6 RCAVOUT O Composite Output Pin for RCA

Video Power Supply Pin: 3.13V ~ 3.47V

7 VVD

-

Normally connected to ground via a 0.1μF ceramic capacitor in parallel with a 4.7μF

electrolytic capacitor.

8 ENCRCA

I Composite Input Pin for RCA

9 ENCPB

I Blue/Pb Input Pin for Encoder

10 ENCPR

I Red/Pr Input Pin for Encoder

11 ENCY

I Green/Y Input Pin for Encoder

12 SDA/MUTEN

I

I2CSEL= “L”: Audio Mute Pin

I2CSEL= “H”: Control Data Input Pin

13 SCL

I

Control Data Clock Input Pin

When I2CSEL=”L”, SCL pin must be connected to PDN pin.

Power-Down Mode Pin

14 PDN

I

When at “L”, the AK4712 is in the power-down mode and is held in reset. The

AK4712 should always be reset upon power-up.

15 AINRP

I Rch Positive Analog Input Pin

16 AINRN

I Rch Negative Analog Input Pin

17 TVOUTR

O Rch Analog Output Pin

I2C Control Enable Pin

18 I2CSEL

I

L: Disable

H: Enable

19 TVOUTL

O Lch Analog Output Pin

20 AINLN

I Lch Negative Analog Input Pin

21 AINLP

I Lch Positive Analog Input Pin

MS1509-E-00

-4-

2013/01

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