XECOM XE1000 Datasheet

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xecom

XE1000

1/97

International Telephone Interfaces

Description

Xecom's XE1000 provides a single hardware platform for telecom products world-wide. You no longer need a unique design to comply with the PTT requirements of each country. The XE1000 provides 4000 volts isolation and, in conjunction with some external straps or components, meets the requirements of PTT's throughout the world.

Small size and low power drain make the XE1000 ideal for compact, power-limited applications. The XE1000 covers just 1.3 square inches of board space and consume just 2 milliamps from the single +5 volt supply. The XE1000 includes ring detect circuitry , off hook control and bell tinkle suppression for use in the UK.

Features

Meet World-Wide PTT requirements (external components may be required)

4000 Volts RMS isolation

BABT Certified

Small Size (1.05" x 1.25" x 0.40")

Low Power (typical on-line; 10 milliWatts)

PSTN and PBX Compatible

Ring Detection

Hookswitch Control

Bell Tinkle Suppression Control (XE1000)

FCC Part 68 Compliant

 

 

BLOCK DIAGRAM

 

OH

 

 

 

 

 

HOOK-

 

VCC VCC

 

SWITCH

 

 

CONTROL

 

 

VCC

 

D2

 

 

 

 

 

WG1

 

 

 

T1

 

 

TIP

 

LINE

LINE

 

 

CURRENT

 

 

TRANSFORMER

 

T2

CIRCUIT

RING

 

 

 

RET1

 

 

 

RET2

 

 

 

RET3

 

 

 

D1

 

 

 

LS

 

TINKLE

BS

 

 

SUPPRESS

 

 

 

CIRCUIT

 

RI

 

 

R1

 

 

RING

 

GND

 

DETECT

 

 

CIRCUIT

R2

GNDGNDGND

 

XECOM

 

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XE1000

XE1000 Mechanical Specifications

 

INCHES

METRIC(MM)

 

 

 

 

 

DIM

MIN

MAX

MIN

MAX

A

1.250

1.270

31.75

32.26

B

1.053

1.073

26.75

27.25

C

0.384

0.404

09.75

10.25

D

0.896

0.916

22.75

23.25

E

0.990

0.010

25.15

25.65

F

0.100

0.200

03.18

05.08

G

0.074

0.084

01.88

02.13

H

0.115

0.135

02.92

03.43

J

0.090

0.110

02.29

02.79

 

 

 

 

 

Pin dimensions .025 inches (.635 mm) square

Recommended hole size .056 inches (1.42 mm)

A

B

Denotes Pin 1

C F

J

H

G

D

G

H

 

E

ABSOLUTE MAXIMUM RATINGS*

SUPPLY VOLTAGE - Vcc

+7.0 Volts

DC INPUT VOLTAGE

-0.6 Volts to +6.5 Volts

 

 

STORAGE TEMPERATURE RANGE

-25° C TO +100° C

 

 

LEAD TEMPERATURE(Soldering, 10sec)

300° C

 

 

OPERATING TEMPERATURE RANGE

0 TO 70° C

*Exceeding these values may result in permanent damage to the device.

Power Supply Characteristics (TA =

0 - 70°C,

Vcc = 5v ±10%)

Symbol

Parameter

Min

Typ

Max

Units

Comments

 

 

 

 

 

 

 

Vcc

Supply Voltage

4.5

5.0

5.5

Volts

 

Icc

Supply Current

 

2.0

6.0

mA

On-Line

 

 

 

 

 

 

 

XECOM

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XE1000

XE1000 Pin Configuration & Descriptions

PIN

NAME

DESCRIPTION

 

 

 

 

 

 

 

 

 

1

/LS

Active low, "Line Short" is used

 

 

 

 

 

 

 

 

 

 

 

during pulse dialing to short the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

22

 

TIP

 

 

 

line for Tinkle Suppression in the

 

/LS

 

 

 

 

 

 

 

 

 

 

 

 

 

UK. This line must be held to at

 

 

2

 

21

 

BS

 

 

 

 

Vcc

 

 

 

 

 

 

least 4.0 volts to disable the Line

 

 

3

 

20

 

D2

 

 

 

 

/RI

 

XE1000

 

 

 

 

Short.

 

 

 

19

 

RING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

Vcc

Vcc is the +5 volt supply voltage

 

 

 

 

 

18

 

D1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

17

 

RET3

 

 

 

 

 

 

 

 

 

 

input.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T1

 

7

 

16

 

WG1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

/RI

This active low, open collector

 

 

8

 

15

 

RET2

 

 

/OH

 

 

 

 

 

 

 

 

 

 

 

9

 

14

 

RET1

 

 

 

output provides a pulse train at

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

 

13

 

R2

 

 

 

twice the ring frequency present

 

T2

 

 

 

 

 

 

 

 

 

 

12

 

R1

 

 

 

on tip and ring.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4-6

No Pin

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

T1

The positive input/output for differential analog signals.

 

 

 

 

 

8

OH

Active low, the on-hook signal places the XE1000 in the on line state. It is pulsed in

 

 

combination with LS to provide pulse dialing.

 

 

 

 

 

9

GND

Ground reference voltage for all control signals.

 

 

 

 

 

10T2 The negative differential input/output for analog signals.

11— No Pin

12R1 R1 provides the Tip connection to the ring detect circuitry.

13R2 R1 provides the Ring connection to the ring detect circuitry.

14

RET1

RET1 provides a 600 ohm line match when tied to Pin 17, RET3.

15

RET2

RET2 provides a custom line impedance match when connected to Pin 17, RET3, via

 

 

an external RC network.

16

WG1

Normally this pin is tied to Pin 20 but provides a connection for the billing tone filter

 

 

when required for homologation.

17

RET3

This pin is used in conjunction with pin 14 or 15 to provide matching line impedance.

18

D1

Normally this pin is tied to Pin 19, Ring, but provides a connection for the billing tone

 

 

filter when required for homologation.

19

Ring

This Ring signal provides one of the two wires for connection to the telephone network.

20

D2

Normally this pin is tied to Pin 16 but provides a connection for the billing tone filter

 

 

when required for homologation.

21

BS

This wire provides the bell shunt connection for the UK, blue wire.

22

Tip

The Tip signal provides half of the two-wire connection to the telephone network.

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XE1000

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