AK5373 AKM [Asahi Kasei Microsystems], AK5373 Datasheet - Page 28

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

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All Descriptor contents are stored in EEP-ROM and customizable with some restrictions.
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1. Device descriptor
MS1202-E-00
Offset
Descriptors Specification (for example)
Customizable Block
Uncustomizable Block
10
12
14
15
16
17
0
1
2
4
5
6
7
8
a) Device Descriptor, String Descriptor
b) Configuration Descriptor
c) Feature Unit Descriptor: <Active> or < Bypass>
d) PCM format (Note that the AK5373 supports 7 sample rates even when only 1 sample rate is specified in the
e) Endpoint Number
f) Maximum Value of Digital Gain
g) Minimum Value of Digital Gain
h) Initial Value of Digital Gain
a) Configuration Number (1)
b) Interface Number (1)
c) Input Terminal ID (1)
d) Output Terminal ID (2)
e) Feature Unit ID (3)
f) Synchronization way (support Synchronous Type)
g) Maximum Alternate Setting number (7)
h) Endpoint Number (1-7)
descriptor.)
- Maximum Packet Size
- idVendor
- idProduct
- Manufacturer Name (max. 126bytes)
- Product Name (max. 126bytes)
- Serial Number (max. 126bytes)
- Language ID
- If Feature Unit is not defined in the descriptor, the volume is fixed to the initial value which is described in
the EEP-ROM header block
- Power Consumption
bLength
bDescriptorType
bcdUSB
bDeviceClass
bDeviceSubClass
bDeviceProtocol
bMaxPacketSize0
idVendor
idProduct
bcdDevice
iManufacturer
iProduct
iSerialNumber
bNumConfigurations
Field
Size
1
1
2
1
1
1
1
2
2
2
1
1
1
1
0x12
0x01
0x0200
0x00
0x00
0x00
0x08
0x0556
0x0006
0x0100
0x01
0x02
0x03
0x01
Value
- 28 -
Size of this descriptor in bytes
DEVICE descriptor
2.0 – USB Specification Release Number in Binary-Coded
Decimal.
Device defined at Interface level
Not used. Must be set to 0.
Not used. Must be set to 0.
8 bytes – Maximum packet size for endpoint zero
AKM – Vendor ID (assigned by the USB-IF)
AK5373 – Product ID (assigned by the manufacturer)
1.00 – Device release number in binary-coded decimal
Index of string descriptor describing manufacturer
Index of string descriptor describing product
Index of string descriptor describing the device’s serial
number
One configuration
Description
[AK5373]
2010/06