AK5371AVQ AKM [Asahi Kasei Microsystems], AK5371AVQ Datasheet - Page 15

• Manufacturer Part Number: AK5371AVQ
• Description: 2ch A/D Converter with USB I/F
• Manufacturer: AKM [Asahi Kasei Microsystems]

MS0546-E-00
1 Device descriptor
Offset
0
1
2
4
5
6
7
8
10
12
14
15
16
17
2 Configuration Descriptor
The configuration block consists of a configuration descriptor followed by interface, endpoint, and class-specific
descriptors.
Offset
3 Interface Descriptor
3.1 Standard Audio Control Interface descriptor
3.1.1 This descriptor describes a standard interface which includes USB class code and the index to class-specific
information.
Offset
ASAHI KASEI
0
1
2
4
5
6
7
8
0
1
2
3
4
5
6
7
8
MS0103-E-00
Field
bLength
bDescriptorType
bcdUSB
bDeviceClass
bDeviceSubClass
bDeviceProtocol
bMaxPacketSize0
idVendor
idProduct
bcdDevice
iManufacturer
iProduct
iSerialNumber
bNumConfigurations
Field
Field
bLength
bDescriptorType
wTotalLength
bNumInterfaces
bConfigurationValue
iConfiguration
bmAttributes
MaxPower
bLength
bDescriptorType
bInterfaceNumber
bAlternateSetting
bNumEndpoints
bInterfaceClass
bInterfaceSubclass
bInterfaceProtocol
iInterface
AK5371A Descriptors Specification
Size
Size
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
2
2
2
1
1
1
1
Size
1
1
2
1
1
1
1
1
Value
0x09
0x04
0x00
0x00
0x00
0x01
0x01
0x00
0x00
Value
0x12
0x01
0x0110
0x00
0x00
0x00
0x08
0x0556
0x0002
0x0001
0x01
0x02
0x00
0x01
Value
0x09
0x02
0x00B1
0x02
0x01
0x00
0x80
0x2D
Description
Size of this descriptor in bytes
DEVICE descriptor
1.10 – current revision of USB spec.
Device defined at Interface level
Unused
Unused
8 bytes
AKM’s Vendor ID
00 means Audio Product, 02 is AKMproduct ID ,
Device release code
“AKM”
“AK5371”
Unused
One configuration
15
Description
Size of this descriptor
CONFIGURATION descriptor
Length of entire configuration block
Total 177 bytes including this interface
descriptor.
Two interfaces
Index of this configuration
Null string
Bus Powered Device
Power consumption: 90mA
Description
Size of this descriptor
INTERFACE descriptor
Index of this interface
Index of this setting
Endpoint 0
AUDIO
AUDIO_CONTROL
Unused
null string
[AK5371A]
2007/02