User's Manual

UMTS/HSPA Module Series
UG96 Hardware Design
UG96_Hardware_Design Confidential / Released 21 / 75
USIM_
PRESENCE
42
DI
USIM card input
detection.
V
IL
max=0.35V
V
IH
min=1.3V
V
IH
max=1.85V
1.8V power domain.
External pull-up
resistor is required.
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.
If unused, keep this
pin open.
DCD
38
DO
Data carrier
detection.
V
OL
max=0.25V
V
OH
min=1.55V
1.8V power domain.
If unused, keep this
pin open.
CTS
36
DO
Clear to send.
V
OL
max=0.25V
V
OH
min=1.55V
1.8V power domain.
If unused, keep this
pin open.
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.
If unused, keep this
pin open.
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.
If unused, keep this
pin open.
TXD
35
DO
Transmit data.
V
OL
max=0.25V
V
OH
min=1.55V
1.8V power domain.
If unused, keep this
pin open.
RXD
34
DI
Receive data.
V
IL
max=0.35V
V
IH
min=1.3V
V
IH
max=1.85V
1.8V power domain.
If unused, keep this
pin open.
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.
If unused, keep this
pin open.
PCM_OUT
7
DO
PCM data output.
V
OL
max=0.25V
V
OH
min=1.55V
1.8V power domain.
If unused, keep this
pin open.