Data Sheet
USB AUDIO controller
SN11121ASF
IV.
Block diagram
I2S interface
LEDN
PDSW
digien, codecsel, hiden,
LFA
LFB
RSTN
Preamble
Validity
VOLUP
VOLDN
MUTEP
PLL CLK
generator
User data bits
Channel status bits
Parity
M
U
X
S/PDIF OUT
GPIO
Processor
MCU
interface
SCL
SDA
CS
SK
DW
DR
Aux data
parallel / serial
Audio data
EEPROM
interface
-
D+
D-
Transceiver
serial / parallel
USB
Memory
FIFO
I2S
Codec controller
XCSN
XCDCLK
XCDOUT
XRSTN
XSCLK1
XLRCK1
XSDO1
DPLL
XIUSB
XMCLK1
PLL
XOUSB
AC’97 interface
LEDN
PDSW
digien, codecsel, hiden
LFA
LFB
RSTN
Preamble
Validity
VOLUP
VOLDN
MUTEP
GPIO
PLL CLK
generator
User data bits
Channel status bits
Parity
M
U
X
S/PDIF OUT
Processor
MCU
interface
SCL
SDA
CS
SK
DW
DR
Aux data
parallel / serial
Audio data
EEPROM
interface
-
D+
D-
Transceiver
serial / parallel
USB
Memory
FIFO
AC'97 Controller
BITCLK
ACRSTN
ACSYNC
ACDOUT
DPLL
XIUSB
PLL
XOUSB
Sonix Confidential
3
Do not copy, reproduce, or distribute without permission
2004 Jan13, Revision V0.3
SONIX [ SONIX TECHNOLOGY COMPANY ]
