參數(shù)資料
型號(hào)： AK4536VN
廠商： Asahi Kasei Microsystems Co.,Ltd
元件分類： Codec
英文描述： 16-Bit Mono CODEC with ALC & MIC/SPK-AMP
中文描述： 16位單聲道編解碼器ALC的
文件頁(yè)數(shù)： 50/59頁(yè)
文件大?。?/td> 403K
代理商： AK4536VN
ASAHI KASEI
[AK4536]
MS0174-E-00
2002/09
- 50 -
CONTROL SEQUENCE
n
Clock Set up
When ADC, DAC, ALC1 and ALC2 are used, the clocks must be supplied.
1. When X'tal is used in PLL & Master mode.
MCKPD bit
(Addr:01H, D2)
BICK, FCK
PMXTL bit
(Addr:01H, D1)
PMPLL bit
(Addr:01H, D0)
40msec(max)
Output
(1)
20ms(typ)
(4)
(5)
(6)
Power Supply
PDN pin
PMVCM bit
(Addr:00H, D6)
(2)
(3)
(7)
1msec(max)
Example:
Audio I/F Format: DSP Mode, BCKP = MSBS = “0”
BICK frequency at Master Mode: 64fs
Input Master Clock Select at PLL Mode : 11.2896MHz
Sampling Frequency:8kHz
(1) Power Supply & PDN pin = “L”
à
“H”
(3)Addr:00H, Data:40H
(2)Addr:01H, Data:0CH
Addr:04H, Data:48H
Addr:05H, Data:00H
(4)Addr:01H, Data:0BH
BICK and FCK output
Figure 34. Clock Set Up Sequence (1)
<Example>
(1) After Power Up, PDN pin = “L”
à
“H”
“L” time (1) of 150ns or more is needed to reset the AK4536.
(2) DIF1-0, PLL2-0, FS2-0, BCKO1-0, MSBS, BCKP and M/S bits should be set during this period.
(3) Power UpVCOM: PMVCM bit = “0”
à
“1”
VCOM should first be powered up before the other block operates.
(4) Release the pulled-down of the XTI pin: MCKPD bit = “1”
→
“0”
Power Up X’tal: PMXTL bit = “0”
→
“1”
Power Up the PLL: PMPLL bit = “0”
→
“1”
(5) It takes X’tal oscillator 20ms(typ) to be stable after PMXTL bit=“1”. This time depends on X’tal. PLL lock time
is 40ms(max) after PMPLL bit changes from “0” to “1”.
(6) The AK4536 starts to output the FCK and BICK clocks after the PLL becomes stable. The normal operation of
the block which a clock is necessary for becomes possible.
(7) The irregular frequencies are output from FCK and BICK pins in this section.
相關(guān)PDF資料
PDF描述
AK4537 16-Bit ツヒ Stereo CODEC with MIC/HP/SPK-AMP
AK4537VN 16-Bit ツヒ Stereo CODEC with MIC/HP/SPK-AMP
AK4538 16Bit DS CODEC with MIC/HP/SPK-AMP
AK4538VN 16Bit DS CODEC with MIC/HP/SPK-AMP
AK4541VQ AC’97 Rev 2.1 Multimedia Audio CODEC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AK4537 制造商:AKM 制造商全稱:AKM 功能描述:16-Bit ΔΣ Stereo CODEC with MIC/HP/SPK-AMP
AK4537VN 制造商:AKM 制造商全稱:AKM 功能描述:16-Bit ΔΣ Stereo CODEC with MIC/HP/SPK-AMP
AK4537VNP-L 制造商:AKM Semiconductor Inc 功能描述:AK4537VNP-L
AK4538 制造商:AKM 制造商全稱:AKM 功能描述:16Bit DS CODEC with MIC/HP/SPK-AMP
AK4538VN 制造商:AKM 制造商全稱:AKM 功能描述:16Bit DS CODEC with MIC/HP/SPK-AMP
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