P5122

ETALDOC 782/4

Page 2 of 4

June 2005

SPECIFICATIONS

Electrical

At T = 25ºC and as circuit fig. 2 unless otherwise stated.

Parameter

Conditions

Min

Typ

Max

Units

Insertion Loss

-

-

1.5

dB

Frequency response

200Hz - 4kHz

-

-

±0.2

dB

Return Loss

200Hz - 4kHz

18

-

-

dB

Third Harmonic

Distortion

(1)

300Hz - 6dBm

697Hz - 6dBm

-

-

-

-

-62

-70

dBm

dBm

Voltage

isolation

(2)

50Hz

DC

2.12

3.0

-

-

-

-

kVrms

kV

Operating range:

Functional

Storage

Ambient temperature

0

-40

-

-

+70

+85

ºC

ºC

Lumped equivalent circuit parameters as Fig. 1

(3)

Sum of windings

124

-

152

Ω

Leakage inductance

ΔL

14.5

-

18

mH

Shunt inductance Lp

(4)

10mV 200Hz

1.4

-

-

H

Shunt loss Rp

(4)

10mV 200Hz

4

-

-

k

Ω

Notes

1.

Third

harmonic

typically

exceeds

other

harmonics by 20dB.

2.

Components are 100% tested at 3.25kV DC.

3.

Caution: do not pass DC through windings.

Telephone line current, etc. must be diverted

using choke or semiconductor line hold

circuit.

4.

At signal levels greater than 100mV, Lp will

increase and Rp will decrease slightly but the

effect is usually favourable to the return loss

characteristic.

Patented

Equivalent Circuit

Fig . 1

IDEAL

1:1

½ L

½ L

½ R

½ R