ASAHI KASEI

[AKD4709-A]

<KM103002>

2011/06

OPEN:

VD1 pin is supplied from VD1 connector.

SHORT: VD1 pin is supplied to regulator +3.3V. (The connector “VD1” can be open.) <Default>

[JP7] (VCC): VVD connector or VCC connector

OPEN:

Logic voltage is supplied from VCC connector.

SHORT: Logic voltage is supplied form VVD connector. (The connector “VCC” can be open.) <Default>

[JP8] (VVD): VD1 connector or VVD connector

OPEN:

VVD1 and VVD2 pins are supplied from VVD connector.

SHORT: VVD1 and VVD2 pins are supplied from VD connector.

(The connector “VVD” can be open.) <Default>

The regulator can be supplied 3.3V to all circuits by shorting JP5, JP7 and JP8 and supplying 12V to VP connector.

The function of the toggle SW

[SW1] (PDN): Resets the AK4709. Keep “H” during normal operation.

The indication content for INT pin

Changes of the 08H status can be monitored via the TEST1 (INT). The INT pin is the open drain output and goes “L” for

2

μs (typ.) when the status of 08H is changed.

Serial Control

The AK4709 can be controlled via the printer port (parallel port) of IBM-AT compatible PC. Connect PORT1 (CTRL)

with PC by 10-line flat cable packed with the AKD4709-A. The control software packed with this evaluation board

Connect

ACK

SCL

SDA

10pin Header

10pin

Connector

10 wire

flat cable

PC

AKD4708-A

Figure 2. Connect of 10-line flat cable

AKD4709-A

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