參數(shù)資料
型號: AK4650
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: 16Bit ツヒ CODEC with MIC/HP/SPK-AMP & TSC
中文描述: 16位ツヒ編解碼器麥克風(fēng)/惠普/胰腎聯(lián)合移植腺苷
文件頁數(shù): 23/86頁
文件大小: 824K
代理商: AK4650
[AK4650]
MS0502-E-01
2007/04
- 23 -
Audio Sample Rate
Sample Rate for DAC and ADC is controlled by register 2CH and 32H, respectively. 16bit data in D15(MSB) to D0 show
unsigned value from 0 to 65535, representing the exact sampling frequency in Hz. These sample rate setting is done at
VRA bit = “1” of Extended Audio Status and Control Register(2Ah).
Sample Rate (kHz)
8.0
11.025
16.0
22.05
24.0
32.0
44.1
48.0
Table 4. Audio Sample Rate
The AK4650 supports these discrete frequencies. When any other codes is written in this register, the AK4650 operates at
the sampling rate rounded to the closest one in Table 4 by decoding only D15-12 bits. If D15-12 = 5H, the AK4650
operates at 22.05kHz or 24kHz when D11 = “0” or “1”, respectively (Table 5).
D15 – D12
D11
0H,1H
x
2H
x
3H
x
4H
x
0
5H
1
6H
x
7H,8H
x
9H,AH
x
BH-FH
x
Table 5. Audio Sample Rate (x: Don’t care)
At VRA bit = “0”, 2CH and 32H are fixed to “BB80H” and cannot be written. When VRA bit is set to “0”, 2CH and 32H
register are set to “BB80H” automatically.
And the change of sample rate will be executed on the fly.
Data in D15 – D0
1F40H
2B11H
3E80H
5622H
5DC0H
7D00H
AC44H
BB80H
Sample Rate (kHz)
8.0
11.025
16.0
22.05
22.05
24.0
24.0
32.0
44.1
48.0
相關(guān)PDF資料
PDF描述
AK4650VG 16Bit ツヒ CODEC with MIC/HP/SPK-AMP & TSC
AK4651 16Bit ツヒ CODEC with MIC/HP/SPK-AMP
AK4651VG 16Bit ツヒ CODEC with MIC/HP/SPK-AMP
AK4665A 20-Bit Stereo CODEC with MIC/HP-AMP
AK4665AEN 20-Bit Stereo CODEC with MIC/HP-AMP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AK4650VG 制造商:AKM 制造商全稱:AKM 功能描述:16Bit ツヒ CODEC with MIC/HP/SPK-AMP & TSC
AK4651 制造商:AKM 制造商全稱:AKM 功能描述:16Bit ツヒ CODEC with MIC/HP/SPK-AMP
AK4651VG 制造商:AKM 制造商全稱:AKM 功能描述:16Bit ツヒ CODEC with MIC/HP/SPK-AMP
AK4664VQ 功能描述:IC CODEC STEREO 20BIT LQFP 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
AK4665A 制造商:AKM 制造商全稱:AKM 功能描述:20-Bit Stereo CODEC with MIC/HP-AMP