CM102-A+ C-Media Electronics, Inc., CM102-A+ Datasheet - Page 8

• Manufacturer Part Number: CM102-A+
• Description: Usb 2ch Audio Controller For Speaker
• Manufacturer: C-Media Electronics, Inc.

Date: 09/25/2005
Pin #
10
12
13
14
15
3.3 PIN SIGNAL DESCRIPTIONS
11
1
2
3
4
5
6
7
8
9
DVDD5V
VOLADJ
Symbol
USBDM
USBDP
REGV
DVSS
AVDD
PAEN
VREF
GPIO
TEST
LOR
LOL
XO
XI
DIO, 8mA, ST,
DI, ST, PD
SR, PD
DI, ST
Type
AIO
AIO
AO
AO
AO
AO
AO
AI
AI
P
P
P
Power Amplifier Control Input, Connect to a Switch or
Pull-High in Normal Operation.
H: Enable Power Amplifier (Normal Mode)
L: Disable Power Amplifier
GPIO Pin, Controlled via Vender Specific Command
Output Pin for 12MHz Oscillator
Input Pin for 12MHz Oscillator
5V Power Supply
Regulator output 3.3v
USB Data D+
USB Data D-
Digital Ground
Test Mode Select Pin, Pull-Down in normal Operation
Connecting to External Decoupling Capacitor for
Embedded Bandgap Circuit; 2.25V Output
Analog Volume Control Input from external VR circuit.
5V Power Supply for Analog Circuit
Line Out Left Channel
Line Out Right Channel
USB Stereo Audio Chip for Speaker Integrated
0 ~ 2.25V:
3.5 ~ 5V:
- 8 -
0 dB
+12 dB ~ 3 dB / mute
Description
CM102-A+/102S+
Version: 1.01