User's Manual

UMTS/HSDPA Module Series
UC15 Hardware Design
UC15_Hardware_Design Confidential / Released 22 / 78
ADC0 41 AI
General purpose
analog to digital
converter.
Voltage range:
0V to 2.1V
ADC1 40 AI
General purpose
analog to digital
converter.
Voltage range:
0V to 2.1V
UART Interface
Pin Name Pin No. I/O Description DC Characteristics Comment
RI 55 DO Ring indicator.
V
OL
max=0.45V
V
OH
min=2.15V
2.6V power domain.
DCD 56 DO
Data carrier
detection.
V
OL
max=0.45V
V
OH
min=2.15V
2.6V power domain.
CTS 57 DO Clear to send.
V
OL
max=0.45V
V
OH
min=2.15V
2.6V power domain.
RTS 58 DI Request to send.
V
IL
min=-0.3V
V
IL
max=0.91V
V
IH
min=1.69V
V
IH
max=2.9V
2.6V power domain.
DTR 59 DI Data terminal ready.
V
IL
min=-0.3V
V
IL
max=0.91V
V
IH
min=1.69V
V
IH
max=2.9V
2.6V power domain.
Pull-up by default.
TXD 60 DO Transmit data.
V
OL
max=0.45V
V
OH
min=2.15V
2.6V power domain.
RXD 61 DI Receive data.
V
IL
min=-0.3V
V
IL
max=0.91V
V
IH
min=1.69V
V
IH
max=2.9V
2.6V power domain.
RF Interface
Pin Name Pin No. I/O Description DC Characteristics Comment
RF_ANT 43 IO RF antenna pad. 50Ω impedance.
Analog Audio Interface
Pin Name Pin No. I/O Description DC Characteristics Comment
MIC1P 23 AI Audio positive input.
MIC1N 24 AI
Audio negative
input.