CM103 查看數據表（PDF） - C-Media Electronics
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CM103 Datasheet PDF : 25 Pages
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CM103+
USB Stereo Audio Chip for Digital Speakers Application
3.3 PIN SIGNAL DESCRIPTIONS
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
Symbol
Type
Description
EESK DO, 8mA, SR EEPROM Interface Clock
DVDD5V
P
5V Power Supply for Digital Circuit
EECS DO, 8mA, SR EEPROM Interface Chip Select
EEDW
EEDR
LEDO
DO, 8mA, SR EEPROM Interface Write to EEPROM
DI, ST, PD,
5VT
EEPROM Interface Read from EEPROM
DO, 8mA, SR LED Indicator for Playback
MUTE DI, ST, PU Mute Pin (HID Standard)
DVDD5V
P
5V Power Supply
DVDD5V
P
5V Power Supply
VP
DI, ST, PU Digital Rotary Encoder Interface Pin A
VN
DI, ST, PU Digital Rotary Encoder Interface Pin B
NC
-
No Connect
NC
-
No Connect
NC
-
No Connect
REGV
AO
Regulator output 3.3V
NC
-
No Connect
USB_DP
AIO
USB Data D+
NC
-
No Connect
USB_DM
AIO
USB Data D-
NC
-
No Connect
DVSS
P
Digital Ground
TEST DI, ST, PD Test Mode Select Pin, Pull-Down in normal Operation
VREF
Connecting to External Decoupling Capacitor for
AO
Embedded Bandgap Circuit; 2.25V Output
Date: 09/25/2005
-8-
Version: 1.01
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