User's Manual

UMTS/HSDPA Module Series
UC15 Hardware Design
UC15_Hardware_Design Confidential / Released 23 / 78
MIC2P 25 AI
Auxiliary audio
positive input.
MIC2N 26 AI
Auxiliary audio
negative input.
SPK1P 22 AO
Audio positive
output.
SPK1N 21 AO
Audio negative
output.
SPK2P 20 AO
Auxiliary audio
positive output.
AGND 19 Analog ground. Ground.
Separate ground for
external audio
circuits.
PCM Interface
Pin Name Pin No. I/O Description DC Characteristics Comment
PCM_DOUT 34 DO PCM data output.
V
OL
max=0.45V
V
OH
min=2.15V
2.6V power domain.
PCM_DIN 35 DI PCM data input.
V
IL
min=-0.3V
V
IL
max=0.91V
V
IH
min=1.69V
V
IH
max=2.9V
2.6V power domain.
PCM_CLK 36 IO PCM data bit clock.
V
IL
min=-0.3V
V
IL
max=0.91V
V
IH
min=1.69V
V
IH
max=2.9V
V
OL
max=0.45V
V
OH
min=2.15V
2.6V power domain.
PCM_SYNC 37 DO
PCM data frame
sync signal
V
OL
max=0.45V
V
OH
min=2.15V
2.6V power domain.
I2C Interface
Pin Name Pin No. I/O Description DC Characteristics Comment
I2C_SDA 38 IO I2C serial data.
V
IL
min=-0.3V
V
IL
max=0.91V
V
IH
min=1.69V
V
IH
max=2.9V
V
OL
max=0.45V
V
OH
min=2.15V
External pull-up
resistor is required.
2.6V only.
I2C_SCL 39 DO I2C serial clock.
V
OL
max=0.45V
V
OH
min=2.15V
External pull-up
resistor is required.