Sony Ericsson GM48 Cell Phone User Manual


 
GM47/GM48 INTEGRATOR’S MANUAL
34
LZT 123 7263 R1C
Handset RJ11 socket Connector for a standard telephone
handset. As PCM paths are open inside the
module, a default short circuit is made
between PCMDLD-PCMIN and PCMULD-
PCMOUT signals on test connector J11 to
enable analogue audio in downlink and
uplink directions. Jumpers are in place
between pins 48 & 50 and between pins 47
& 49
Pin # Signal
1MICN
2BEARN
3BEARP
4MICP
PCM 8 pin mini-DIN
connector
Carries PCM signals
Pin # Signal
1 VIO (2.75V d.c. output)
2PCMULD
3PCMDLD
4 PCMCLK
5PCMSYNC
6DGND
7PCMIN
8PCMOUT
9DGND
J4 SYSTEM
connector
Allows direct connection of the module to
the development board (see Figure 2.3,
page 31)
J5 SIM card test
connector
Connector to gain access to the SIM card
signals, which are connected in parallel with
U10
Pin # Signal
1SIMVCC
2SIMRST
3SIMCLK
4SIMDAT
5 SIMPRESENCE
6SIMGND
7SIMGND
U10 SIM Holder Connector for SIM card. Signals are also
present at test connector J5, described
above
EAR 3.5mm 2-pole
jack socket
Audio output (unbalanced) or Audio From
Mobile Station (AFMS). Make sure jumpers
are in place between pins 48 & 50 and
between pins 47 & 49
MIC 3.5mm 2-pole
jack socket
Audio input (unbalanced) or Audio To
Mobile Station (ATMS). Signal source must
be AC-coupled as a bias voltage for
electret microphones is provided
(2.0 - 2.5Vd.c.). Make sure Jumpers are in
place between pins 48 & 50 and between
pins 47 & 49
Connector Description Connections
1234
1
2
34
5
6
9
8
7
ground signal