XECOM XE5620G-ITR, XE5620G Datasheet

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XECOM XE5620G-ITR, XE5620G Datasheet

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 AT 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 milliwatt;

XE5620G BLOCK DIAGRAM

XECOM

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XE5620G

XE5620G Mechanical Specifications

b c

a

d

i

i

 

 

 

 

g

f

 

(TOP)

 

 

e

e

c

 

 

 

 

 

.050”

45O

i

 

 

Inches

 

 

Millimeters

 

Dimension

Min

Typ

Max

Min

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

 

 

 

 

 

 

 

XECOM

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XE5620G

XE5620G Pin Configuration

/DCD 1 /CTS 2 RESET 3 /DSR 4 /RTS 5 /DTR 6 /RXD 7 /TXD 8 /RI 9 GND 10 SPKR 11 N/C 12 N/C 13 Vcc 14

N/C 15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24

 

 

 

RING

 

 

 

 

 

 

 

 

 

23

 

 

 

N/C

 

 

 

 

 

 

 

 

 

 

 

22

 

 

 

TIP

 

 

 

 

 

 

 

 

 

 

TOP

21

 

 

 

N/C

 

 

20

 

 

 

N/C

 

 

 

 

 

 

 

19

 

 

 

NP

 

 

 

18

 

 

 

NP

 

 

 

17

 

 

 

NP

 

 

 

16

 

 

 

NP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

/RTS

/RTS 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.

 

 

 

 

 

 

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XE5620G

XE5620G Pin Descriptions (continued)

PIN

NAME

DESCRIPTION

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..

10

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

14

VCC

VCC provides 3.3 volt power to the modem.

15

N/C

No Internal Connection

16-19

NP

No Pin

20-21

N/C

No Internal Connection

22

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.

24

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.

XECOM

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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 Temperature Profile

220O C

180O C

150O C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-20 sec-

 

 

 

 

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

 

max

 

 

 

 

 

----- 90 sec max

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

XECOM

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XE5620G

XE5620G Electrical Specifications

Parameter

Min

Typ

Max

Units

Comments

 

 

 

 

 

 

VCC

3.13

3.3

3.47

Volts

 

 

 

 

 

 

 

ICC

85

90

100

ma

On Line

 

 

 

 

 

 

ICC

 

25

 

ma

On-Hook

 

 

 

 

 

 

Ring Voltage Detected

26

 

150

VRMS

Type B Ringer

 

 

 

 

 

 

Ring Frequency Detected

15.3

 

68

Hz

Type B Ringer

 

 

 

 

 

 

Telephone Loop Current

10

40

100

ma

 

 

 

 

 

 

 

Line Impedance

 

600

 

Ohms

 

 

 

 

 

 

 

Data Transmit level

 

-12.0

-9.0

dBm

 

 

 

 

 

 

 

DTMF Transmit Level

 

-2.5

0

dBm

Avg 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

 

 

 

 

 

 

 

XE5620G ABSOLUTE MAXIMUM RATINGS

Storage Temperature

-25O C to +85O C

 

 

Operating Temperature Range1

0O C to +70O C

 

 

Maximum Time Above Eutectic (183O C)

90 seconds

 

 

Preheat Dwell Time

120 to 180 seconds

1The 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).

XECOM

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XE5620G

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