XE002B Просмотр технического описания (PDF) - Xecom

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производитель

XE002B

DAA with 2/4 Wire Hybrid

Xecom 

D.C. Electrical Specification

(Vcc=+5v ±10%, Vdd=-5v ±10%, Ta=0 to 70 deg C)

Parameter

Conditions

Min Typ Max Units

Power Supply Current Vcc

VDD

6

10

mA

4

6

mA

Transmission Gain

Gain between transmit input and -0.5

telephone line at 1800 Hz with

600 ohm termination

0

+0.5 dB

Telephone Line

Impedance

at 1800 Hz

540 600 660 Ohms

Coupler Match

Input Impedance

Output impedance of external

531 536 541 Ohms

circuitry when T1 driven directly

to provide 600 ohm phone line

impedance match

Transhybrid Loss

Attenuation between the trans-

10

18

dB

mitter input and receiver output

at 1kHz with 600 ohm termination

Attenuation

Receive and Transmit attenuation

at 300 Hz with 600 ohm termina-

tion

0.8

3

dB

Transmit Input

Impedance

at 1800 Hz

8

10

12 KOhm

Receive Output

at 1800 Hz

10

100 Ohm

Ring Detect

Min. AC voltage between Tip &

38

Sensitivity (on hook) Ring Type B ringer

Vrms

Loop Current Switch

Control Voltage

ON: (off hook)

OFF: (on hook)

2.0 3.0

Volts

0.5

0.8 Volts

Loop Current Switch

Control Current

1.0

2.0

mA

FCC User Instructions

RINGER EQUIVALENCE

0.9B

6/XECOM

XE0002B

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