參數(shù)資料
型號: AK4673EG
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: Stereo CODEC with MIC/HP-AMP and Touch Screen Controller
中文描述: 立體聲編解碼器麥克風/惠普- AMP及觸摸屏控制器
文件頁數(shù): 50/107頁
文件大?。?/td> 1171K
代理商: AK4673EG
[AK4673]
MS0670-E-00
2007/09
- 50 -
Input Digital Volume (Manual Mode)
The input digital volume becomes manual mode when ALC bit is “0”. This mode is used in the case shown below.
1.
After exiting reset state, set-up the registers for the ALC operation (ZTM1-0, LMTH1-0 and etc)
2.
When the registers for the ALC operation (Limiter period, Recovery period and etc) are changed.
For example; when the sampling frequency is changed.
3.
When IVOL is used as a manual volume.
IVL7-0 and IVR7-0 bits set the gain of the volume control (
Table 36
). The IVOL value is changed at zero crossing or
timeout. Zero crossing timeout period is set by ZTM1-0 bits. If IVL7-0 or IVR7-0 bits are written during
PMADL=PMADR bits = “0”, IVOL operation starts with written values at the end of the ADC initialization cycle after
PMADL or PMADR bit is changed to “1”.
Even if the path is switched from recording to playback, the register setting of IVOL remains. Therefore, IVL7-0 and
IVR7-0 bits should be set to “91H” (0dB).
IVL7-0
IVR7-0
F1H
+36.0
F0H
+35.625
EFH
+35.25
:
:
E2H
+30.375
E1H
+30.0
E0H
+29.625
:
:
03H
53.25
02H
53.625
01H
54
00H
MUTE
Table 36. Input Digital Volume Setting
(default)
GAIN (dB)
Step
0.375dB
相關PDF資料
PDF描述
AK4682 Multi-channel CODEC with 2Vrms Stereo Selector
AK4682EQ Multi-channel CODEC with 2Vrms Stereo Selector
AK4683_07 Asynchronous Multi-Channel Audio CODEC with DIR/T
AK4683EQ Asynchronous Multi-Channel Audio CODEC with DIR/T
AK4683 Asynchronous Multi-Channel Audio CODEC with DIR/T
相關代理商/技術參數(shù)
參數(shù)描述
AK4675 制造商:AKM 制造商全稱:AKM 功能描述:Stereo CODEC with MIC/RCV/HP/SPK-AMP
AK4675EG 制造商:AKM 制造商全稱:AKM 功能描述:Stereo CODEC with MIC/RCV/HP/SPK-AMP
AK4682 制造商:AKM 制造商全稱:AKM 功能描述:Multi-channel CODEC with 2Vrms Stereo Selector
AK4682AEQ 功能描述:IC CODEC MULTI-CHANNEL 48LQFP 制造商:akm semiconductor inc. 系列:* 零件狀態(tài):上次購買時間 標準包裝:1,000
AK4682EQ 制造商:AKM 制造商全稱:AKM 功能描述:Multi-channel CODEC with 2Vrms Stereo Selector