參數(shù)資料
型號(hào)： AK4640
廠商： Asahi Kasei Microsystems Co.,Ltd
元件分類： Codec
英文描述： 16BIT CODEC WITH MIC /HP/SPK-AMPl
中文描述： 16位編解碼器麥克風(fēng)/惠普/胰腎聯(lián)合移植，AMPl
文件頁(yè)數(shù)： 70/76頁(yè)
文件大?。?/td> 634K
代理商： AK4640
ASAHI KASEI
[AK4640]
MS0273-E-00
2004/03
- 70 -
Speaker-amp Output
FS2-0 bits
(Addr:05H, D7-5)
ATTL7-0 bits
(Addr:0CH 0DH, D7-0)
PMDAC bit
(Addr:01H, D0)
PMSPK bit
(Addr:01H, D3)
XXX
000
0000000
XXXXXXX
SPP pin
Normal Output
SPPS bit
(Addr:05H, D0)
Hi-Z
Hi-Z
SPN pin
Normal Output
Hi-Z
Hi-Z
HVDD/2
HVDD/2
(1)
(3)
X
0
(2)
ALC2 bit
(Addr:09H, D6
(4)
(5)
(7)
(6)
E xam p le :
X ’tal a nd P L L a re use d.
S am p ling Freq ue ncy : 48 kH z
D A T T C bit = “1”(defa ult)
A LC 1 : D isa ble
A LC 2 : D isa ble
(1 ) A d d r:0 5 H , D ata6 0 H
(3 ) A d d r:0 C H , D ata 0 0 H
(4 ) A d d r:0 1 H , D ata 6 9 H
(5 ) A d d r:0 5 H , D ata 6 1 H
P layb ack
(2 ) A d d r:0 9 H , D ata 0 0 H
(6 ) A d d r:0 5 H , D ata 6 0 H
(7 ) A d d r:0 1 H , D ata 6 0 H
Figure 52. Speaker-Amp Output Sequence
<Example>
At first, clocks should be supplied according to “Clock Set Up” sequence.
(1) Set up a sampling frequency (FS2-0 bits) if PLL mode is used.
(2) Set up the ALC2 Enable/Disable(ALC2 bit)
(3) Set up the digital volume(Addr : 0CH and 0DH)
At DATTC bit = “1”(default), ATTL7-0 bits of Address 0CH control both Lch and Rch attenuation level.
(4) Power up of DAC and Speaker-amp : PMDAC bit = PMSPK bit = “0”
→
“1”
SPPS bit should be set to “1” at more than 1ms after PMSPK bit is set to “1”.
The initializing time of Speaker-amp is 2048/fs=46.4ms@fs=44.1kHz.
(5) Exit the power-save-mode of Speaker-amp : SPPS bit = “0”
→
“1”
(6) Enter the power-save-mode of Speaker-amp : SPPS bit = “1”
→
“0”
(7) Power down DAC and Speaker-amp : PMDAC bit = PMSPK bit = “1”
→
“0”
相關(guān)PDF資料
PDF描述
AK4640VG 16BIT CODEC WITH MIC /HP/SPK-AMPl
AK4640VN 16BIT CODEC WITH MIC /HP/SPK-AMPl
AK4642EN Stereo CODEC with MIC/HP/SPK-AMP
AK4643EN Stereo CODEC with MIC/HP/RCV/SPK-AMP
AK4645EZ Stereo CODEC with MIC/HP-AMP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AK4640_05 制造商:AKM 制造商全稱:AKM 功能描述:16-Bit ツヒ CODEC with MIC/HP/SPK-AMP
AK4640VG 制造商:AKM 制造商全稱:AKM 功能描述:16BIT CODEC WITH MIC /HP/SPK-AMPl
AK4640VN 制造商:AKM 制造商全稱:AKM 功能描述:16BIT CODEC WITH MIC /HP/SPK-AMPl
AK4641 制造商:AKM 制造商全稱:AKM 功能描述:16 BIT CODEC WITH BLUETOOTH INTERFACE
AK4641EN 制造商:AKM 制造商全稱:AKM 功能描述:16bit stereo CODEC with built-in Microphone-amplifier and 16bit Mono CODEC for Bluetooth Interface.
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