- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄385093 > AK4646EZ (ASAHI KASEI POWER DEVICES CORP) Stereo CODEC with MIC/SPK-AMP PDF資料下載
參數(shù)資料
| 型號(hào)： | AK4646EZ |
| 廠(chǎng)商： | ASAHI KASEI POWER DEVICES CORP |
| 元件分類(lèi)： | 消費(fèi)家電 |
| 英文描述： | Stereo CODEC with MIC/SPK-AMP |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQCC32 |
| 封裝： | 4 X 4 MM, 0.40 MM PITCH, LEAD FREE, PLASTIC, QFN-32 |
| 文件頁(yè)數(shù)： | 44/78頁(yè) |
| 文件大?。?/td> | 808K |
| 代理商： | AK4646EZ |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)當(dāng)前第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)
[AK4646EZ]
MS0630-E-00
2007/06
- 44 -
■
Output Digital Volume (Manual Mode)
The ALC block becomes output digital volume (manual mode) by setting ALC2 bit to “0” when both Lch and Rch of
ADC are powered-down (PMADL = PMADR bits = “1”) or DAFIL bit is “1”. The output digital volume gain is set by
the OVL7-0 bit and the OVR7-0 bit (Table 35). When the OVOLC bit = “1”, the OVL7-0 bits control both Lch and Rch
volume levels. When the OVOLC bit = “0”, the OVL7-0 bits control Lch level and the OVR7-0 bits control Rch level.
The OVOL value is changed at zero crossing or timeout. The zero crossing timeout period is set by ZTM1-0 bits.
OVL7-0 bits
OVR7-0 bits
F1H
+36.0
F0H
+35.625
EFH
+35.25
:
:
92H
+0.375
91H
0.0
90H
-0.375
:
:
2H
-53.625
1H
-54.0
0H
MUTE
Table 35. Output Digital Volume Setting
When writing to the OVL7-0 bits and OVR7-0 bit continuously, the control register should be written by an interval more
than zero crossing timeout. If not, the zero crossing counter is reset at each time and the volume will not be changed.
However, it could be ignored when writing the same register value as the last time. In this case, zero crossing counter will
not be reset, so that it could be written by an interval less than zero crossing timeout.
■
Output Digital Volume 2
AK4646 has 4 steps output volume in addition to the volume setting by DATT1-0 bits. Lch and Rch have the same
volume values, which are set by DATT1-0 bits as shown in Table 36.
GAIN(0dB)
Step
(default)
0.375dB
DATT1-0bits
GAIN(0dB)
Step
0H
1H
2H
3H
0.0
-6.0
-12.0
-18.1
(default)
6.0dB
Table 36. Output Digital Volume2 Setting
■
De-emphasis Filter
The AK4646 includes the digital de-emphasis filter (tc = 50/15
μ
s) which corresponds 3 kinds frequency (32kHz, 44kHz,
48kHz) by IIR filter. Setting the DEM1-0 bits enables the de-emphasis filter (Table 37).
DEM1
DEM0
0
0
0
1
1
0
1
1
Table 37. De-emphasis Control
Mode
44.1kHz
OFF
48kHz
32kHz
(default)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AK4646 | Stereo CODEC with MIC/SPK-AMP |
| AK4646EN | Stereo CODEC with MIC/SPK-AMP |
| AK4647 | Stereo CODEC with MIC/HP-AMP |
| AK4647VN | Stereo CODEC with MIC/HP-AMP |
| AK4648 | Stereo CODEC with MIC/HP/SPK-AMP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AK4647 | 制造商:AKM 制造商全稱(chēng):AKM 功能描述:Stereo CODEC with MIC/HP-AMP |
| AK4647VN | 制造商:AKM 制造商全稱(chēng):AKM 功能描述:Stereo CODEC with MIC/HP-AMP |
| AK4647VQ | 制造商:AKM 制造商全稱(chēng):AKM 功能描述:Stereo CODEC with MIC/HP-AMP |
| AK4648 | 制造商:AKM 制造商全稱(chēng):AKM 功能描述:stereo CODEC with MIC/HP/SPK amplifier |
| AK4648EC | 制造商:AKM 制造商全稱(chēng):AKM 功能描述:Stereo CODEC with MIC/HP/SPK-AMP |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。