XECOM XE5620-ITR, XE5620 Datasheet

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XECOM XE5620-ITR, XE5620 Datasheet

XE5620

January 2003

56 KBPS Surface-Mountable Integrated Sealed-Hybrid Modem

Description

Xecom’s XE5620 provides a complete 56 KBPS modem into an miniature, surface-mount package. Xecom’s new HyPLCC™ package (Hybrid PLCC) makes it possible to meet the conflicting goals of small size, low cost and surface-mountability. The XE5620 targets remote monitoring applications in industrial, commercial and residential locations

As a complete modem, the XE5620 includes not only all modem circuitry but also user transferrable FCC Part 68 Registration and UL60950 recognition. This allows the XE5620 to be easily integrated into your embedded application.

Xecom’s new HyPLCC™ package infuses the XE5620 with both its small size and surface mountability. The HyPLCC package allows complex hybrid circuits to fit the 68-Pin PLCC footprint. The HyPLCC™ package provides a completely sealed environment protecting the XE5620 during assembly and board cleaning operations. Xecom also provides a low speed model, the XE2420, in the HyPLCC™ package.

Features

*Small Size: The HyPLCC™ measures less than 1 inch by 1 inch square and 0.290 inches thick

*Surface-mountable: The HyPLCC™ package is equivalent to a 68-Pin PLCC device.

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

*Supports V.42 error correction and V.42bis Data Compression

*Modem Control and Configuration via industry standard AT Commands.

*Non-volatile 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

*UL60950 Recognition

*Low Power operation, 3.3 Volts, 300 milliwatt;

XE5620 BLOCK DIAGRAM

XECOM

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XE5620

XE5620 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

0.280

0.285

0.290

7.11

7.24

7.37

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

 

 

 

 

 

 

 

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XE5620

XE5620 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

TOP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24

 

 

RING

 

 

 

 

23

 

 

N/C

 

 

 

 

 

 

 

22

 

 

TIP

 

 

 

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. The AT&C command controls when the

 

 

XE5620 asserts /DCD.

2

/CTS

/CTS is an active low output from the modem. The modem asserts /CTS to indicate that it can

 

 

accept data from the terminal equipment on /TXD.

3

/RESET

RESET is an active low 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. The AT&S command controls when the XE5620

 

 

asserts /DSR.

5

/RTS

/RTS is an active low input to the modem. /RTS indicates to the modem that the host has data

 

 

to send.

6

/DTR

/DTR is an active low input to the modem. 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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XE5620

XE5620 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..

 

1 0

Ground

Ground provides the reference voltage for all host interface signals.

 

1 1

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 N P

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 XE5620 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

 

2 3

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 XE5620 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.

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XE5620

XE5620 Soldering Instructions

The XE5620 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 XE5620 must not be exposed to direct Infrared (IR) heating. If your process includes direct IR heating, you must shield the XE5620 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 -----

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XE5620

XE5620 Electrical Specifications

Parameter

Min

Typ

Max

Units

Comments

 

 

 

 

 

 

VCC

3.13

3 . 3

3.47

Volts

 

 

 

 

 

 

 

ICC

8 5

9 0

1 0 0

ma

On Line

 

 

 

 

 

 

ICC

 

2 5

 

ma

On-Hook

 

 

 

 

 

 

Ring Voltage Detected

2 6

 

1 5 0

VRMS

Type B Ringer

 

 

 

 

 

 

Ring Frequency Detected

15.3

 

6 8

Hz

Type B Ringer

 

 

 

 

 

 

Telephone Loop Current

1 0

4 0

1 0 0

ma

 

 

 

 

 

 

 

Line Impedance

 

6 0 0

 

Ohms

 

 

 

 

 

 

 

Data Transmit level

 

-12.0

-9.0

dBm

 

 

 

 

 

 

 

DTMF Transmit Level

 

-2.5

0

dBm

Avg over 3 second interval

 

 

 

 

 

 

Vo h

2 . 4

 

 

Volts

 

 

 

 

 

 

 

Vol

 

 

0 . 4

Volts

 

Vih

2 . 0

 

VCC+0.3

Volts

 

Vil

-0.3

 

0 . 8

Volts

 

 

 

 

 

 

 

XE5620 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 XE5620 can be ordered with an Operating Temperature of -40O C to +85O C at extra cost. Order XE5620-ITR or to specify Industrial Temperature Range (ITR).

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XE5620

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