AK4632VN AKM [Asahi Kasei Microsystems], AK4632VN Datasheet - Page 57

• Manufacturer Part Number: AK4632VN
• Description: 16-Bit ?? Mono CODEC with ALC & MIC/SPK/Video-AMP
• Manufacturer: AKM [Asahi Kasei Microsystems]

ASAHI KASEI
When ADC, DAC, ALC1, ALC2 and IPGA are used, the clocks must be supplied.
MS0396-E-00
Power Supply
PMVCM bit
(Addr:00H, D6)
(Addr:01H, D2)
(Addr:01H, D1)
(Addr:01H, D0)
MCKPD bit
(Addr:01H, D3)
Clock Set up
PMPLL bit
MCKO pin
1. In case of PLL Master Mode.
MCKO bit
<Example>
BICK pin
MCKI pin
FCK pin
PDN pin
M/S bit
(1) After Power Up, PDN pin = “L” → “H”
(2) DIF1-0, PLL3-0, FS3-0, BCKO1-0, MSBS, BCKP and M/S bits should be set during this period.
(3) Power UpVCOM: PMVCM bit = “0” → “1”
(4) Release the pull-down resistor of the MCKI pin: MCKPD bit = “1” → “0”
(5) In case of using MCKO output: MCKO bit = “1”
(6) PLL lock time is 40ms(max) after PMPLL bit changes from “0” to “1” and MCKI is supplied from an external
(7) The AK4632 starts to output the FCK and BICK clocks after the PLL becomes stable. The normal operation of
(8) The invalid frequencies are output from FCK and BICK pins during this period.
(9) The invalid frequency is output from MCKO pin during this period.
(10) The normal clock is output from MCKO pin after the PLL is locked.
In case of not using MCKO output: MCKO bit = “0”
source.
the block which a clock is necessary for becomes possible.
“L” time (1) of 150ns or more is needed to reset the AK4632.
VCOM should first be powered-up before the other block operates.
(1)
(2)
(3)
(4)
(5)
(8)
(6)
1msec (max)
Figure 46. Clock Set Up Sequence (1)
40msec(max)
(9)
40msec(max)
CONTROL SEQUENCE
Input
(10)
(7)
- 57 -
Output
Output
Example:
(1) Power Supply & PDN pin = “L”
Audio I/F Format: DSP Mode, BCKP = MSBS = “0”
Input Master Clock Select at PLL Mode: 11.2896MHz
Sampling Frequency:8kHz
MCKO : Enable
BICK frequency at Master Mode: 64fs
MCKO, BICK and FCK output
(2)Addr:01H, Data:0CH
(4)Addr:01H, Data:0BH
(3)Addr:00H, Data:40H
Addr:04H, Data:48H
Addr:05H, Data:00H
[AK4632]
“H”
2005/06