ASAHI KASEI

[AKD4112B-B]

<KM080200>

2005/10

- 3 -

a-2-2. Set-up of the jumper on the main board.

Input

RX2

RX3

RX4

JP5

JP6

JP7

JP

Short

Short

RX4

The jumper, which selects the Rx channel, should be Short.

Table 3. Set-up of RX2, 3 and 4

a-3. Set-up of AK4112B input path

It sets up IPS1-0 bits in serial mode.

IPS1 bit

IPS0 bit

INPUT Data

0

0

RX1

Default

0

1

RX2

1

0

RX3

1

1

RX4

Table 4. Recovery Data Select (Serial)

b. Set-up of clock input and output

The signal level outputted/inputted from PORT2 is 3.3V.

PORT2

DIR

5

6

1

10

Figure 2. PORT2 pin layout

b-1. MCKO1/MCKO2

The output of MCKO1 pin or MCKO2 pin can be selected by JP12. The output frequency of MCKO1/MCKO2

is selected by OCKS 1-0.

Output

signal

JP12

MCKO1

MCKO1

Default

MCKO2

MCKO2

Table 5. MCKO1/MCKO2 set-up

OCKS1 pin

(SW3_2)

OCKS0 pin

(SW3_3)

OCKS1 bit

OCKS0 bit

(X’tal)

MCKO1

MCKO2

fs (max)

0

0

256fs

256fs

256fs

108 kHz

Default

0

1

256fs

256fs

128fs

108 kHz

1

0

512fs

512fs

256fs

54 kHz

1

1

-

-

-

-

Table 6. Master Clock Frequency Select