AKD4586 Datasheet, PDF (7/46 Pages) Asahi Kasei Microsystems – Evaluation board Rev.B for AK4586

ASAHI KASEI
[AKD4586]
(2) Evaluation of ADC
PORT2(TOTX176) is used for digital output. AK4103(DIT) generates audio bi-phase signal from received data
and which is output through optical connector (TOTX176). It is possible to connect AKM’s D/A converter
evaluation boards or the digital-amplifier which equips DIR input. SW2 is used to set the interface format and
clock mode of AK4103 (see DIP-SW set-up). Clock operation mode of the AK4586 should be set to X’tal mode
by the control software packed with the AKD4586. Clock operation mode is set by CM1-0 bit of Addr=02H.
(3) Evaluation of DAC<default>
PORT2(TORX176) or J10(BNC(RX)) is used for digital input. DIR of AK4586 generates MCLK, BICK, LRCK
and SDATA from the received data through optical connector(TORX176) or BNC connector. Used for the
evaluation using CD test disk. In case of using BNC connector, set JP2(RX) to “BNC” side. Nothing should be
connected to PORT4(AC3).
(4) Evaluation using AC3 decoder
Connect the AC3 decoder with PORT4(AC3). Decoded serial data is sent to AKD4586. JP26(SDTI1),
JP27(SDTI2) and JP27(SDTI3) should be open.
„ Clock operation mode set-up
Clock operation mode should be set as Table 2 at evaluation modes (1), (2) and (3). Both clock operation mode can
be used at other evaluation modes. Clock operation mode can be set by CM1-0 bits(Addr=02H) of AK4586. CM1-0
bits can be set by the software packed with AKD4586. Please refer to the datasheet of AK4586 for details.
Clock operation mode Corresponding eva-mode
PLL mode
(3)
X’tal mode
(1),(2)
Table 2. Clock operation mode set-up
Default
„ Jumpers set up
[JP1](GND): Analog ground and digital ground.
This jumper pin should always be shorted.
[JP2] (RX):Source of digital inputs.
RX side: Toslink(TORX176: PORT2) <default>
BNC side: BNC connector(JP10)
[JP26] (SDTI1):Source of SDTI1 input
Short: SDTO of AKD4586 <default>
Open: PORT4
[JP27] (SDTI2): Source of SDTI2 input
Short: SDTO of AKD4586 <default>
Open: PORT4
[JP28] (SDTI3): Source of SDTI3 input
Short: SDTO of AKD4586 <default>
Open: PORT4
<KM065102>
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2005/7