User's Manual

UMTS/HSPA Module Series
UG95 Hardware Design
UG95_Hardware_Design Confidential / Released 19 / 67
Main UART Interface
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
RI
39
DO
Ring indicator.
V
OL
max = 0.25V
V
OH
min = 1.55V
1.8V power domain.
DCD
38
DO
Data carrier
detection.
V
OL
max = 0.25V
V
OH
min = 1.55V
1.8V power domain.
CTS
36
DO
Clear to send.
V
OL
max = 0.25V
V
OH
min = 1.55V
1.8V power domain.
RTS
37
DI
Request to send.
V
IL
max = 0.35V
V
IH
min = 1.3V
V
IH
max = 1.85V
1.8V power domain.
DTR
30
DI
Data terminal ready.
V
IL
max = 0.35V
V
IH
min = 1.3V
V
IH
max = 1.85V
1.8V power domain.
TXD
35
DO
Transmit data.
V
OL
max = 0.25V
V
OH
min = 1.55V
1.8V power domain.
RXD
34
DI
Receive data.
V
IL
max = 0.35V
V
IH
min = 1.3V
V
IH
max = 1.85V
1.8V power domain.
RF Interface
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
RF_ANT
60
IO
RF antenna.
50Ω impedance
PCM Interface
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
PCM_IN
6
DI
PCM data input.
V
IL
min = -0.3V
V
IL
max = 0.35V
V
IH
min = 1.3V
V
IH
max = 1.85V
1.8V power domain.
PCM_OUT
7
DO
PCM data output.
V
OL
max = 0.25V
V
OH
min = 1.55V
1.8V power domain.
PCM_SYNC
5
IO
PCM data frame
sync signal.
V
OL
max = 0.25V
V
OH
min = 1.55V
V
IL
min = -0.3V
V
IL
max = 0.35V
V
IH
min = 1.3V
V
IH
max = 1.85V
1.8V power domain.
In master mode, it is
an output signal.