ASAHI KASEI

<KM081401>

2005/12

- 3 -

2) On-board X’tal mode/ Feeding external MCLK via BNC

When the CM0 (DIP-switch S1_1 on board) is “H”, the AK4112B generates MCLK, BICK and LRCK from on-board

X’tal or external clock form J1. SDATA should be fed via PORT2.

2)-1. DIP-switch set-up

No.

CM0

DIF1

DIF0

1

“H”

Don’t care

Don’t care

Table 3. DIP-switch set-up

2)-2. Jumper pins set up

Mode

JP3 (EXT)

JP4 (MCLK)

JP5 (BICK)

JP6 (SDTI)

JP7 (LRCK)

On-board X’tal

Open

Short

Short

Open

Short

External clock via

BNC connector J1

Short

Short

Short

Short

Short

Table 4. Jumper pins set up

3) Feeding all clocks from external

Under the following set-up, all external signals can be fed to the AK4706 through POTR1 (EXT).

The AKM’s evaluation board for ADC can be used.

3)-1. DIP-switch set-up

No.

CM0

DIF1

DIF0

1

Don’t care

Don’t care

Don’t care

Table 5. DIP-switch set-up

3)-2. Jumper pins set up

JP3 (EXT)

JP4 (MCLK)

JP5 (BICK)

JP6 (SDTI)

JP7 (LRCK)

Open

Open

Open

Open

Open

Table 6. Jumper pins set up