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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)： | 2/29頁 |
| 文件大?。?/td> | 514K |
| 代理商： | CM108 |
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CM108
Integration Dual DAC, Earphone Driver, ADC,
Microphone Booster, PLL, Regulator, and USB Transceiver
Date: Nov/01/2004
Version: 1.5
- 9 -
32
LOR
AO
Line Out Right Channel
33
AVSS2
P
Analog Ground
34
AVDD2
P
5V Power Supply for Analog Circuit
35
DVDD
P
5V Power Supply for Internal Regulator
36
DVSS2
P
Digital Ground
37
REGV
AO
3.3V Reference Output for Internal 5V
3.3V Regulator
38
MSEL
DI, ST
Mixer Enable Select, worked with MODE pin
H: With Mixer / AA-Path Enable (With Default Mute)
L: Without Mixer / AA-Path Disable
( H: Pull Up to 3.3V, L: Pull Down to Ground )
USB Descriptors will also be changed accordingly
39
VOLUP
DI, ST, PU
Volume Up (Edge Trigger with de-Bouncing)
40
PDSW
DO, 4mA , OD
Power Down Switch Control Signal (for PMOS Polarity)
0: Normal Operation,
1: Power Down Mode (Suspend Mode)
41
USBDP
AIO
USB Data D+
42
USBDM
AIO
USB Data D-
43
GPIO1
DIO, 8mA,
PD, 5VT
GPIO Pin
44
SDOUT
DO, 4mA, SR
DAC I2S Data Output
45
DAMCLK
DO, 4mA, SR
11.2896 MHz Output for 44.1KHz Sampled Data and
12.288 MHz Output for 48KHz Sampled Data
46
DALRCK
DO, 4mA, SR
DAC I2S Left/Right Clock
47
DASCLK
DO, 4mA, SR
DAC I2S Serial Clock
48
VOLDN
DI, ST, PU
Volume Down (Edge Trigger with de-Bouncing)
U
Note
U
: DI / DO / DIO – Digital Input / Output / Bi-Directional Pad
AI / AO / AIO – Analog Input / Output / Bi-Directional Pad
SR – Slew Rate Control
ST – Schmitt Trigger
PD / PU – Pull Down / Pull Up
5VT – 5 Volt Tolerant (3.3V Pad)
OD – Open Drain
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