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AK4642VN Datasheet, PDF (78/82 Pages) Asahi Kasei Microsystems – 16-Bit ΔΣ Stereo CODEC with MIC/HP/SPK-AMP | |||
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ASAHI KASEI
[AK4642]
 ΫϩοΫͷà°à¢
ADCÍÎͼDACÎà¢à¼»Í ͳÍà§ß¹Í¸ÉºÏελΫϩοΫÎà°à¢Í¢ÎÍͱÍÍ°ÍÎ͢ɻ
1. PLLÏελÏÊÏ
Í·à§ß¹
PMPLL bit
(Addr:01H, D0)
MCKO bit
(Addr:01H, D1)
External MCKI
"H" or "L"
Input
(1)
(2)
(3)
Example:
Audio I/F Format: MSB justified (ADC & DAC)
BICK frequency at Master Mode: 64fs
Input Master Clock Select at PLL Mode: 11.2896MHz
Sampling Frequency: 8kHz
(1) (2) Addr:01H, Data:08H
(3) Stop an external MCKI
Figure 55. Clock Stopping Sequence (1)
<à¤à¥±à¾«>
(1) PLLÍ·ÏÏ«Êμ΢ϯ: PMPLL bit = â1â â â0â
(2) MCKOà¥à¾Í·à°à¢: MCKO bit = â1â â â0â
(3) Ö෦ΫϩοΫÎà¢ÎͯԼÍÍÉ»
2. PLLεϨÊÏÏÊÏ
(LRCK, BICK pin)Í·à§ß¹
PMPLL bit
(Addr:01H, D0)
External BICK
External LRCK
(1)
(2)
Input
(2)
Input
Example
Audio I/F Format : MSB justified (ADC & DAC)
PLL Reference clock: BICK
BICK frequency: 64fs
Sampling Frequency: 8kHz
(1) Addr:01H, Data:00H
(2) Stop the external clocks
Figure 56. Clock Stopping Sequence (2)
<à¤à¥±à¾«>
(1) PLLÍ·ÏÏ«Êμ΢ϯ: PMPLL bit = â1â â â0â
(2) Ö෦ΫϩοΫÎà¢ÎͯԼÍÍÉ»
MS0358-J-02
- 78 -
2005/04
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