AK4571 Datasheet, PDF (24/54 Pages) Asahi Kasei Microsystems – USB I/F Audio CODEC

ASAHI KASEI
[AK4571]
n Device Descriptor
Device Descriptor
AK4571 1
n Configuration Descriptor
Configuration Descriptor
AK4571 4
Interface
n Interface Descriptor
AK4571 4 Interface Descriptor
a) Audio Control (AC) Interface
b) Audio Streaming(AS) Interface1 for A/D converter
c) Audio Streaming(AS) Interface2 for D/A converter
d) HID Interface for Mute & Volume Control
AC Interface
Terminal/Function Unit
AS Interface
AK4571 AS Interface 1, 2
Alternate Setting 0 (Alt 0), Alternate Setting 1 (Alt 1)
Alt 0 USB
Alt 1 A/D, D/A
descriptor wMaxPacketSize
200
n Endpoint Descriptor
AC Interface
Endpoint 0(default pipe)
AS Interface 1 Isochronous, Asynchronous
AK4571
Standard Endpoint
A/D IN Endpoint D/A(OUT Endpoint)
100
AS Interface Endpoint Descriptor IN/OUT,
AS Interface 2 Isochronous, Synchronous
1ms
HID Interface 1 Interrupt EP
Volume/Mute
AK4571 NAK
Interrupt
1
MS0153-J-02
- 24 -
2003/3