XECOM XE5620G-ITR, XE5620G Datasheet

XECOM (1) XE5620G

XE5620G

August 2002

Smallest World-Wide 56 KBPS Modem

Description

Xecom’s XE5620G simplifies integration of dial-up
communications into embedded systems. It offers a
single modem solution for use throughout the world,
and its PLCC package allows the XE5620G to fit in the
tightest system layout. It is a breakthrough for the
embedded system designer.

The XE5620G offers unprecidented design flexibility.
It offers a common communications solution for
countries around the world, and the Hybrid PLCC
package (HyPLCC™) is both the smallest complete
modem and the only surface mount modem you can
buy. The XE5620G fits a 68-Pin PLCC socket and
therefore can be mounted in a socket or soldered onto
the board. As the world’s smallest complete modem,
you can place the XE5620G where no other modem
will fit.

The surface mount package and small size of the
XE5620G are particularly impressive when you realize
it is a complete modem. The DAA, RAM, ROM,
Crystal; everything is included. The XE5620G even
includes transferrable FCC Part 68 Registration. No
further testing is required for US applications

Features

* Small Size: The HyPLCC™ measures less than 1

inch by 1 inch square and 0.350 inches thick

* Surface-mountable: The HyPLCC™ package is

equivalent to a 68-Pin PLCC device.

* Data transfer at all rates from 300 BPS to 56 KBPS

using V.90, V.34bis, V.34, V.32bis, V.32, V.22bis,
V.22, V.23, V.21, Bell 212A, and Bell 103 Protocols

* Modem Control and Configuration via industry

standard A T Commands.

* Nonvolatile memory stores modem configuration

and permits stored number dialing.

* Incorporates Fax send and receive capabilities

controlled by Class 1 Fax commands.

* Complete integrated DAA includes, Ring Detect,

Loop Current Holding Circuit, Hook Switch.
Metallic Surge Protection, and Solid-State DAA

* User Transferrable FCC Part 68 Registration

(pending)

* Compliant with telecom requirements around the

world.

* UL60950 Recognition (pending)
* Low Power operation, 3.3 Volts, 300 milliw att;

XE5620G BLOCK DIAGRAM

XECOM (2) XE5620G

XE5620G Mechanical Specifications

a

b

c

d

c

f

g

e

e

45

O

i

(TOP)

Inches Millimeters

Dimension Mi n T yp Max Mi n Typ Max

a 0.345 0.350 0.355 8.76 8.89 9.02
b 0.985 0.990 0.995 25.02 25.15 25.27
c 0.950 0.955 0.960 24.13 24.26 24.38
d 0.910 0.920 0.930 23.11 23.37 23.62
e 0.045 0.050 0.055 1.15 1.27 1.40

f 0.695 0.700 0.705 17.65 17.78 17.91

g 0.195 0.200 0.205 10.03 10.16 10.29

i(radius) 0.015 0.020 0.025 0.13 0.25 0.38

i

i

.050”

XECOM (3) XE5620G

XE5620G Pin Configuration

Pin Descriptions

PIN NAME DESCRIPTION

1 /DCD /DCD is an active low output from the modem. It can be used to indicate the presence of a

valid carrier signal. The AT&C command controls when the XE5620G asserts /DCD.

2 /CTS /CTS is an active low output from the modem. When hardware flow control is active, the

modem asserts /CTS to indicate that it can accept data from the terminal equipment on /TXD.

3 RESET RESET is an active high input which initiates a modem hardware reset. RESET must be active

for a minimum of 100 milliseconds for a proper modem reset sequence. No external reset is
required; if none is used the RESET signal should be left open.

4 /DSR /DSR is an active low output from the modem. /DSR can be used to indicate that the modem

link is established. The AT&S command controls when the XE5620G asserts /DSR.

5 /R TS /R TS is an active low input to the modem. When hardware flow control is active, /RTS indicates

to the modem that the host has data to send.

6 /DTR /DTR is an active low input to the modem. /DTR can be used to indicate that the terminal is

availble for communications. The AT&D command determines how the modem will interpret
activity on /DTR.

7 /RXD /RXD provides the path for received data and modem responses to be sent from the modem to

the host terminal equipment.

/DCD 1

/CTS 2

RESET 3

/DSR 4 24 RING

/RTS 5 2 3 N/C
/DTR 6 22 TIP
/RXD 7 2 1 N/C

/TXD 8 2 0 N/ C

/RI 9 19 NP

GND 10 18 NP

SPKR 11 17 NP

N/C 12 16 NP
N/C 13

Vcc 1 4

N/C 15

TOP

XECOM (4) XE5620G

8 /TXD /TXD provides the path for transmitted data and modem commands to be passed from the host

terminal equipment to the modem.

9 /RI The /RI signal reports on the presence of an incoming ring signal. When a ring occurs across

Tip and Ring, the /RI output goes low and toggles with the cadence of the ring signal..
1 0 Ground Ground provides the reference voltage for all host interface signals.
11 SPKR SPKR allows connection of a speaker to monitor modem operations. SPKR cannot directly

drive a speaker. An amplifier with a minimum input impedance of 300 ohms is required. The

signal on SPKR is controlled by the ATL and ATM commands.

12-13 N/C No internal connection

1 4 VCC VCC provides 3.3 volt power to the modem.
1 5 N/C No Internal Connection

16-19 NP No Pin
20-21 N/C No Internal Connection

2 2 Tip The Ring and Tip signals provide modem the connection to the telephone line. FCC Part 68

Rules require a 1500 volt isolation barrier between the telephone line and all other circuits.

This isolation must be preserved throughout the system.

The telephone company places a DC “Battery” voltage across Tip and Ring on all public switched

telephone lines. The XE5620G will operate regardless of the polarity of this “Battery” voltage.

The “Battery” voltage drives up to 100 milliamps of DC loop current.

UL60950 requires minimum creepage and clearances distances be maintained between the

Tip and Ring traces and all other circuits. Clearance is the shortest distance between conductive

circuits; creepage is the distance between conductive surfaces along the surface
23 N/C No internal connection, To prevent damage in case of voltage surges on the telephone line, we

recommend that nothing be connected to this pin.
2 4 Ring The Ring and Tip signals provide modem the connection to the telephone line. FCC Part 68

Rules require a 1500 volt isolation barrier between the telephone line and all other circuits.

This isolation must be preserved throughout the system.

The telephone company places a DC “Battery” voltage across Tip and Ring on all public switched

telephone lines. The XE5620G will operate regardless of the polarity of this “Battery” voltage.

The “Battery” voltage drives up to 100 milliamps of DC loop current.

UL60950 requires minimum creepage and clearances distances be maintained between the

Tip and Ring traces and all other circuits. Clearance is the shortest distance between conductive

circuits; creepage is the distance between conductive surfaces along the surface.

XE5620G Pin Descriptions (continued)

PIN NAME DESCRIPTION

XECOM (5) XE5620G

XE5620G Soldering Instructions

The XE5620G is subject to damage if over-exposed to heat during solder reflow operations. Following the
soldering instructions below will ensure that the process of soldering the module to the board does not damage
the modem. The XE5620G must not be exposed to direct Infrared (IR) heating. If your process includes direct
IR heating, you must shield the XE5620G from the infrared rays.

Maximum Temperature 220O C

Maximum Time at 220O C 20 Seconds

Maximum Time above Eutectic (180O C) 90 Seconds

Maximum Preheat Dwell Time 180 Seconds

Maximum Recommended Solder T emperature Pr ofile

220O C

180O C

150O C

-20 sec-

--------------------------------180 sec max --------------------- max

----- 90 sec max -----

XECOM (6) XE5620G

XE5620G Electrical Specifications

VCC 3.13 3.3 3.47 Volts
ICC 85 90 100 ma On Line
ICC 2 5 ma On-Hook
Ring Voltage Detected 2 6 15 0 VRMS Type B Ringer
Ring Frequency Detected 15.3 68 Hz Type B Ringer
Telephone Loop Current 1 0 4 0 1 0 0 ma
Line Impedance 600 Ohms
Data Transmit level -12.0 -9.0 dBm
DTMF Transmit Level -2.5 0 dBm Av g over 3 second interval
Voh 2.4 Volts
Vol 0.4 Volts
Vih 2.0 VCC+0.3 Volts
Vil -0.3 0.8 Volts

Parameter Min Typ Max Units Comments

XE5620G ABSOLUTE MAXIMUM RA TINGS

Storage Temperature -25O C to +85O C

Operating T emperature Range

1

0O C to +70O C

Maximum Time Above Eutectic (183O C) 90 seconds

Preheat Dwell Time 120 to 180 seconds

1

The XE5620G can be ordered with an Operating Temperature of -40O C to +85O C at extra cost. Order XE5620G-ITR or
to specify Industrial Temperature Range (ITR).