Data Sheet

USB AUDIO controller

SN11121ASF

Sonix Confidential

Do not copy, reproduce, or distribute without permission

2004 Jan13, Revision V0.3

2

Isochronous transfer uses adaptive, synchronous and asynchronous

synchronization

Supports AC’97 component specification v2.1 and v2.2; AC link interface for

external AC97 audio Codec

Supports 2ch Codec with I2S, Left-justified serial interface format

Embedded Digital Volume Control of Line out for I2S interface mode

Compliant with USB HID class specification v1.1; pin control for volume up /

down, play 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

3.3 V core operation and 5 V tolerant I/O

Available in 48-pin LQFP(7x7 mm)

System on chip solution: low cost and easy implementation without external

memory

LED indicator pins for playback and recording mute

4 GPIO pins controlled via USB HID

Features programmable by jumper pins and EEPROM values

III.

Ordering information

SN11121ASF : 48-pin LQFP (7x7x1.4 mm)