User's Manual

ManualsBrandsSAGEMCOM BROADBAND ManualsElectronicsQual-Band GSM/GPRS/EDGE Voice and Data Module

10

C601

10nF

C602

33pF

9

R616

2.2k

C60322pF

7

– –

HILONC- 3GPS APPLICATION

NOTE

SIM_CLK_CARD

SIM_RST_CARD

R601

56

R602

10

NC

4

8

3

2

6

NC

R601

10

SIM_DATA_CARD

VSIM_CARD

VSIM_CARD

1

5

SIM_GPIO

GND

:

Serial

resistors

for

protection

of

long

SIM

bus

lines

The

schematic

above

includes

a

hardware

SIM

card

presence

detector.

It

can

be

connected

to

GPIO2

.



GPIO2

is

the

design

default

for

SIM

card

detection.



Use

a

22pF

capacitor

to

debounce

the

GPIO2

detection

signal.



The

SIM

card

must

not

be

removed

from

its

holder

while

it

is

still

powered.

Switch

the

module

off

with

the

AT

command,

then

remove

the

SIM

card

from

its

holder.

3.2.

Audio

Connection

The

HILONC-3GPS

module

features

one

input

audio

path

and

one

output

audio

path.

The

input

path

is

a

PCM

digital

input.

The

output

path

is

a

PCM

digital

output.

3.2.1.

PCM

Digital

Audio

HILONC-3GPS

can

be

used

for

connection

to

an

external

codec

through

the

integrated

PCM

interface.

The

interface

supports

an

8

kHz

short

sync

mode

at

2048

kHz

and

an

8

kHz

long

sync

mode

at

128

kHz.

In

short-

sync

(primary

PCM)

mode,

the

HILONC-3GPS

can

act

as

master

or

slave.

In

long-sync

(auxiliary

PCM)

mode,

the

HILONC-3GPS

is

always

a

master;

there

is

no

slave

support.

Note

d’étude

/

Technical

document

:

01/08/20111

-

Page

11

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41