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| AKD4641EN-A Datasheet, PDF (4/54 Pages) Asahi Kasei Microsystems – 16bit stereo CODEC with built-in Microphone-amplifier and 16bit Mono CODEC for Bluetooth Interface. | |||
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ASAHI KASEI
[AKD4641EN-A]
(1-3) Evaluation of Loop Back (ADC â DAC) using 16bit Mono CODEC <default>
X2 (Xâtal) is used. Nothing should be connected to PORT1 (DIR), PORT2 (DIT) and PORT3 (Audio I/F).
JP24
XTI
JP26
MCLK_SEL
JP27
BICK1
JP30
BICK2
JP28
BICK_INV
MCKO01 MCKO02 DIR PORT
THR INV
DIR PORT
JP29
LRCK1
JP31
LRCK2
JP32
SDTI1
JP33
SDTI2
DIR PORT
DIR LOOP
DIR PORT
(1-4) All interface signals including master clock are fed externally.
PORT3 (Audio I/F) and J12 (EXT) is used. Nothing should be connected to PORT1 (DIR). X2 (Xâtal) is
removed. JP25 (EXT) and R51 should be properly selected in order to much the output impedance of the clock
generator.
JP24
XTI
JP26
MCLK_SEL
JP27
BICK1
JP30
BICK2
JP28
BICK_INV
MCKO01 MCKO02 DIR PORT
THR INV
DIR PORT
JP29
LRCK1
JP31
LRCK2
JP32
SDTI1
JP33
SDTI2
DIR PORT
DIR LOOP
DIR PORT
JP28 (BICK_INV) is jumper which decides polarity of BICK, set âTHRâ or âINVâ for audio interface format.
<KM082001>
-4-
2006/03
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