- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385093 > AK4642EN (Asahi Kasei Microsystems Co.,Ltd) Stereo CODEC with MIC/HP/SPK-AMP PDF資料下載
參數(shù)資料
| 型號： | AK4642EN |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 元件分類： | Codec |
| 英文描述： | Stereo CODEC with MIC/HP/SPK-AMP |
| 中文描述： | 立體聲編解碼器麥克風(fēng)/惠普/胰腎聯(lián)合移植腺苷 |
| 文件頁數(shù)： | 75/83頁 |
| 文件大?。?/td> | 670K |
| 代理商： | AK4642EN |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁當前第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁
ASAHI KASEI
[AK4642EN]
MS0420-E-00
2005/09
- 75 -
Speaker-amp Output
FS3-0 bits
(Addr:05H, D5&D2-0)
DVL/R7-0 bits
(Addr:0AH&0DH, D7-0)
PMDAC bit
(Addr:00H, D2)
PMSPK bit
(Addr:00H, D4)
1,111
X,XXX
18H
XXH
SPP pin
Normal Output
SPPSN bit
(Addr:02H, D7)
Hi-Z
Hi-Z
SPN pin
Normal Output
Hi-Z
Hi-Z
HVDD/2
HVDD/2
(1)
(9)
X
0
(7)
ALC bit
(Addr:07H, D5)
(10)
(11)
(14)
(12)
DACS bit
(Addr:02H, D3)
(13)
01
00
(3)
SPKG1-0 bits
(Addr:03H, D4-3)
IVL/R7-0 bits
(Addr:09H&0CH, D7-0)
E1H
91H
(8)
(2)
(6)
ALC Control 1
(Addr:06H)
XXH
3CH
(4)
ALC Control 2
(Addr:08H)
XXH
C1H
(5)
ALC Control 3
(Addr:0BH)
XXH
00H
PMBP bit
(Addr:00H, D5)
Example:
PLL Master Mode
Digital Volume: 0dB
ALC: Enable
(2) Addr:02H, Data:20H
(7) Addr:07H, Data:20H
(1) Addr:05H, Data:27H
(9) Addr:0AH & 0DH, Data:28H
(10) Addr:00H, Data:74H
(11) Addr:02H, Data:A0H
(12) Addr:02H, Data:20H
Playback
(13) Addr:02H, Data:00H
(14) Addr:00H, Data:40H
(3) Addr:03H, Data:08H
(8) Addr:09H & 0CH, Data:91H
(4) Addr:06H, Data:3CH
(5) Addr:08H, Data:E1H
(6) Addr:0BH, Data:00H
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 (FS3-0 bits). When the AK4642 is PLL mode, DAC and Speaker-Amp should be
powered-up in consideration of PLL lock time after a sampling frequency is changed.
(2) Set up the path of “DAC
SPK-Amp”: DACS bit = “0”
“1”
(3) SPK-Amp gain setting: SPKG1-0 bits = “00”
“01”
(4) Set up Timer Select for ALC (Addr: 06H)
(5) Set up REF value for ALC (Addr: 08H)
(6) Set up LMTH1 and RGAIN1 bits (Addr: 0BH)
(7) Set up LMTH0, RGAIN0, LMAT1-0 and ALC bits (Addr: 07H)
When PMADL or PMADR bit is “1”, ALC for DAC path is disabled.
(8) Set up the input digital volume (Addr: 09H and 0CH)
When PMADL = PMADR bits = “0”, IVL7-0 and IVR7-0 bits should be set to “91H”(0dB).
(9) Set up the output digital volume (Addr: 0AH and 0DH).
When DVOLC bit is “1” (default), DVL7-0 bits set the volume of both channels. After DAC is powered-up, the
digital volume changes from default value (0dB) to the register setting value by the soft transition.
(10) Power Up of DAC, MIN-Amp and Speaker-Amp: PMDAC = PMBP = PMSPK bits = “0”
→
“1”
The DAC enters an initialization cycle that starts when the PMDAC bit is changed from “0” to “1” at PMADL
and PMADR bits are “0”. The initialization cycle time is 1059/fs=24ms@fs=44.1kHz. During the initialization
cycle, the DAC input digital data of both channels are internally forced to a 2's compliment, “0”. The DAC
output reflects the digital input data after the initialization cycle is complete. When PMADC or PMADR bit is
“1”, the DAC does not require an initialization cycle. When ALC bit is “1”, ALC is disable (ALC gain is set by
IVL/R7-0 bits) during an intialization cycle (1059/fs=24ms@fs=44.1kHz). After the initialization cycle, ALC
operation starts from the gain set by IVL/R7-0 bits.
(11) Exit the power-save-mode of Speaker-Amp: SPPSN bit = “0”
→
“1”
(12) Enter the power-save-mode of Speaker-Amp: SPPSN bit = “1”
→
“0”
(13) Disable the path of “DAC
SPK-Amp”: DACS bit = “1”
“0”
(14) Power Down DAC, MIN-Amp and Speaker-Amp: PMDAC = PMBP = PMSPK bits = “1”
→
“0”
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AK4643EN | Stereo CODEC with MIC/HP/RCV/SPK-AMP |
| AK4645EZ | Stereo CODEC with MIC/HP-AMP |
| AK4645 | Stereo CODEC with MIC/HP-AMP |
| AK4646EZ | Stereo CODEC with MIC/SPK-AMP |
| AK4646 | Stereo CODEC with MIC/SPK-AMP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AK4642VN | 制造商:AKM 制造商全稱:AKM 功能描述:16-Bit ???￡ Stereo CODEC with MIC/HP/SPK-AMP |
| AK4643 | 制造商:AKM 制造商全稱:AKM 功能描述:Stereo CODEC with built-in MIC/HP/RCV/SPK amplifier |
| AK4643EN | 制造商:AKM 制造商全稱:AKM 功能描述:Stereo CODEC with MIC/HP/RCV/SPK-AMP |
| AK4644 | 制造商:AKM 制造商全稱:AKM 功能描述:Stereo CODEC with built-in MIC/HP/RCV amplifier |
| AK4644EN | 制造商:AKM 制造商全稱:AKM 功能描述:Stereo CODEC with MIC/HP/RCV-AMP |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。