AK5373 AKM [Asahi Kasei Microsystems], AK5373 Datasheet - Page 35

• Manufacturer Part Number: AK5373
• Description: 24-bit Stereo ADC with USB Interface
• Manufacturer: AKM [Asahi Kasei Microsystems]

4.4.5 Class-specific Isochronous Audio Data Endpoint Descriptor
4.5 Operational Alternate Setting 4
4.5.1 Standard Audio Streaming Interface Descriptor (Alt = 4: St, 8bit, 8k/11.025k/16k/22.05k)
4.5.2 Class-specific Audio General Interface Descriptor
4.5.3 Type I Format Type Descriptor
MS1202-E-00
Offset
Offset
Offset
Offset
14
17
11
0
1
2
3
4
5
0
1
2
3
4
5
6
7
8
0
1
2
3
4
5
0
1
2
3
4
5
6
7
8
bLength
bDescriptorType
bDescriptorSubtype
bmAttributes
bLockDelayUnits
wLockDelay
bLength
bDescriptorType
bInterfaceNumber
bAlternateSetting
bNumEndpoints
bInterfaceClass
bInterfaceSubclass
bInterfaceProtocol
iInterface
bLength
bDescriptorType
bDescriptorSubtype
bTerminalLink
bDelay
wFormatTag
bLength
bDescriptorType
bDescriptorSubtype
bFormatType
bNrChannels
bSubFrameSize
bBitResolution
bSamFreqType
tSamFreq[0]
tSamFreq[1]
tSamFreq[2]
tSamFreq[3]
Field
Field
Field
Field
Size
Size
Size
Size
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
3
3
3
3
0x07
0x25
0x01
0x01
0x00
0x0000
0x09
0x04
0x01
0x04
0x01
0x01
0x02
0x00
0x00
0x07
0x24
0x01
0x02
0x01
0x0002
0x14
0x24
0x02
0x01
0x02
0x01
0x08
0x04
0x001F40
0x002B11
0x003E80
0x005622
Value
Value
Value
Value
- 35 -
Size of this descriptor in bytes
CS_ENDPOINT
GENERAL
Sample rate control
Unused
Size of this descriptor in bytes
INTERFACE descriptor
Index of this interface
Index of this setting
Endpoint 1
AUDIO
AUDIO_STREAMING
Not used. Must be set to 0.
Null string
Size of this descriptor in bytes
CS_INTERFACE descriptor
AS_GENERAL
Unit ID of terminal (Output Terminal ID)
Interface delay
PCM8
Size of this descriptor in bytes
CS_INTERFACE
FORMAT_TYPE
FORMAT_TYPE_I
Two channels
One byte per slot
8 bits
Four frequencies
8000Hz
11025Hz
16000Hz
22050Hz
Description
Description
Description
Description
[AK5373]
2010/06