ASAHI KASEI

[AKD4550]

<KM083000>

2006/02

- 5 -

5) Evaluation of A/D using DIT. (Optical link)

PORT2 (TOTX141) is used. DIT generates audio bi-phase signal from received data and which is output

through optical connector (TOTX141). It is possible to connect AKM’s D/A converter evaluation boards

on the digital-amplifier, which equips DIR input.

JP4

MCLK

JP5

SCLK

JP7

SDTI

JP6

LRCK

ADC

DIR

6) All interfacing signals (MCLK, SCLK, LRCK) are fed from the external circuit through PORT3.

Under the following set-up, all external signals needed for the AK4550 to operate could be fed through

PORT3.

JP4

MCLK

JP5

SCLK

JP7

SDTI

JP6

LRCK

ADC

DIR