參數(shù)資料
型號： AK5371VQ
廠商： Asahi Kasei Microsystems Co.,Ltd
英文描述： AB 5C 2#8 3#12 SKT WALL MT REC
中文描述： 2聲道的A / D轉換器的USB我/女
文件頁數(shù)： 29/32頁
文件大?。?/td> 256K
代理商： AK5371VQ
ASAHI KASEI
[AK5371]
29
MS0103-E-00
MS0103-E-00
2001/06
5.2
Endpoint Control Request
The AK5371 supports five sampling frequencies. The sampling rate is changed when “Set Endpoint
Control Request ” is issued. SET_CUR, GET_CUR of bRequest is only supported. GET_MIN, GET_
MAX, and GET_RES of bRequest are not supported.
5.2.1
Offset
0
1
2
Set E ndpoint Control Request
F ield
bmRequestType
bRequest
wValue
Size
1
1
2
Value
0x22
0x01
0x0100
Description
SET_CUR
Upper byte: SAMPLING_FREQ_CONTROL (0x01)
Lower byte : zero
Upper Byte : zero
Lower Byte : Endpoint Address (0x81)
The Length of Sampling Frequency Parameter
Block
4
wIndex
2
0x0081
6
wLength
2
0x0003
The parameter block of mute control is the following.
Offset
F ield
0
iSampleFreq
Size
3
Value
0xYYYYYY
Description
The following five values are valid. Others are
invalid.
0x001F40 : 8kHz
0x002B11 : 11.025kHz
0x005622 : 22.05kHz
0x00AC44 : 44.1kHz(default)
0x00BB80 : 48kHz
If the iSampleFreq is different from the above values, the AK5371 forces sampling frequency to the
appropriate value.
5.2.2
Offset
0
1
2
Get E ndpoint Control Request
F ield
bmRequestType
bRequest
wValue
Size
1
1
2
Value
0xA2
0x81
0x0100
Description
GET_CUR
Upper byte: SAMPLING_FREQ_CONTROL (0x01)
Lower byte : zero
Upper Byte : zero
Lower Byte : Endpoint Address (0x81)
The Length of Sampling Frequency Parameter
Block
4
wIndex
2
0x0081
6
wLength
2
0x0003
The parameter block of mute control is the following.
Offset
F ield
0
iSampleFreq
Size
3
Value
0xYYYYYY
Description
The following five values are valid. Others are
invalid.
0x001F40 : 8kHz
0x002B11 : 11.025kHz
0x005622 : 22.05kHz
0x00AC44 : 44.1kHz
0x00BB80 : 48kHz
相關PDF資料
PDF描述
AK5380 96kHz 24Bit ADC with Single - ended Input
AK5380VT 96kHz 24Bit ADC with Single - ended Input
AK5381ET 24Bit 96kHz ツヒ ADC
AK5381VT 24Bit 96kHz ツヒ ADC
AK5383 Circular Connector; No. of Contacts:8; Series:MS27484; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:16; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:16-8 RoHS Compliant: No
相關代理商/技術參數(shù)
參數(shù)描述
AK5373 制造商:AKM 制造商全稱:AKM 功能描述:24-bit Stereo ADC with USB Interface
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AK5374EN 制造商:AKM 制造商全稱:AKM 功能描述:24-bit Stereo ADC with USB Interface
AK5374ENP-L 制造商:Asahi Kasei Microsystems Co Ltd 功能描述:
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