Data Sheet
USB Audio Controller
SN11220ACF
I. Description
SONiX
SN11220ACF is an USB audio controller designed especially for voice-band
and DECT phone CODEC. It supports 8 different sampling rates, 8KHz, 11.025KHz,
16KHz, 22.05KHz, 24KHz, 32KHz, 44.1KHz and 48KHz in playback and recording.
These 8 frequencies are selectable by setting the three external pins.
II. Features
8KHz, 11.025KHz, 16KHz, 22.05KHz, 24KHz, 32KHz, 44.1KHz and 48KHz
sampling rates for 2 channels playback and recording
Full-duplex playback/ recording audio stream without sound card in PC
Compatible with Win98 SE/ WinME/ Win2000/ WinXP and MacOS
9.2.1/MacOS10.2/MacOS10.4 without additional driver
Plug-and-Play operation with Microsoft OS or MacOS default drivers
Compliant with USB specification v1.1
Compliant with USB audio device class specification v1.0
Supports USB full speed 12Mbits/s serial data transmission
USB bus power or self power option
Supports suspend/resume and remote wake-up
6MHz crystal input with on-chip PLL and embedded transceiver for USB
On-chip PLL for synchronized with USB host for CODEC interface
USB audio function topology has four input terminals, three output terminals,
one selector unit, one mixer unit and six feature units
USB alternate setting0 is a zero-bandwidth setting; used to release the claimed
bandwidth on the bus when this device is inactive
Isochronous transfer uses adaptive, synchronous synchronization
Supports 2ch CODEC with I
2
S, Left-justified serial interface format
Embedded Digital Volume Control of Line out / in for I
2
S interface mode
Compliant with USB HID class specification v1.1; pin control for volume up /
down, play mute, and record mute
Supports two wire series bus interface; slave only interface with transfer speed
up to 400Kbps(Fast-mode)
EEPROM interface for customized USB IDs and strings; CODEC registers
programming
Sonix Confidential
-1-
Do not copy, reproduce, or distribute without permission
2006 Aug 10, V1.01
SONIX [ SONIX TECHNOLOGY COMPANY ]
