AKD4671-B Datasheet, PDF (3/51 Pages) Asahi Kasei Microsystems – stereo CODEC with built-in Microphone-Amplifier

[AKD4671-B]
„ Evaluation mode
1. Audio I/F evaluation mode
In case of AK4671 evaluation using AK4114, it is necessary to correspond to audio interface format for
AK4671 and AK4114. About AK4671’s audio interface format, refer to datasheet of AK4671. About
AK4114’s audio interface format, refer to Table 2 on page 19.
The AK4114 operates at fs of 32kHz or more. If the fs is slower than 32kHz, please use other mode.
In addition, MCLK of AK4114 supports 256fs and 512fs. When evaluate it in a condition except this, please
use other modes
(1) External Slave Mode
(1-1) Evaluation of A/D using DIT of AK4114
(1-2) Evaluation of D/A using DIR of AK4114
(1-3) Evaluation of Loop-back using AK4114 <default>
(1-4) Evaluation of Loop-back that master clock is fed externally, BICK and LRCK are divided with a
board
(1-5) All interface signals including master clock are fed externally
(2) External Master Mode
(2-1) Evaluation of A/D using DIT of AK4114
(2-2) Evaluation of D/A using DIR of AK4114
(2-3) Evaluation of Loop-back using AK4114
(2-4) All interface signals including master clock are fed externally
(3) PLL Slave Mode
(3-1) PLL Reference Clock : MCKI pin
(3-1-1) Evaluation of A/D using DIT of AK4114
(3-1-2) Evaluation of Loop-back using AK4114
(3-1-3) All interface signals including master clock are fed externally
(3-2) PLL Reference Clock : BICK or LRCK pin
(3-2-1) Evaluation of A/D using DIT of AK4114
(3-2-2) Evaluation of D/A using DIR of AK4114
(3-2-3) Evaluation of Loop-back using AK4114
(3-2-4) All interface signals including master clock are fed externally
(4) PLL Master Mode
(4-1) Evaluation of A/D using DIT of AK4114
(4-2) Evaluation of Loop-back
(4-3) All interface signals including master clock are fed externally
<KM089000>
-3-
2007 / 05