參數(shù)資料
型號: CM108
廠商: C-Media Electronics Inc.
英文描述: USB Audio I/O Controller
中文描述: USB音頻I / O控制器
文件頁數(shù): 4/29頁
文件大?。?/td> 514K
代理商: CM108
CM108
Integration Dual DAC, Earphone Driver, ADC,
Microphone Booster, PLL, Regulator, and USB Transceiver
Date: Nov/01/2004
Version: 1.5
- 11 -
5. BLOCK DIAGRAM
Block Diagram Of CM108
USB
TRX
USB
interface
USB control
ISO out
processing
PLL1
48 MHz
clock
gen
12 MHz
VREF
(2.25V)
power on
reset
bandgap
3.3V
5 -> 3.3
regulator
REGV
ISO in
processing
SRAM
16 bit ADC
16 bit
DAC
+12 ~ -33 dB
32 steps
LOL
interface logics
MUTER
VOLDN
VOLUP
VREF
MUTEP
LOR
LEDO
LEDR
PDSW
VBIAS
4.5V
EEPROM
interface
CS
SK
DW
DR
USBDP
USBDM
MICIN
VREF
+
-
LOBS
GPIO
+20dB boost enable
PWRSEL
MODE
MSEL
IIS I/F
SPDIFO
0 ~ -45dB
38 steps
0 ~ -45dB
38 steps
16 bit
DAC
+22.5 ~ 0 dB
16 steps
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