P R E L I M I N A R Y

14

Am79R70 Data Sheet

TEST CIRCUITS

2

A. Two- to Four-Wire Insertion Loss

A(TIP)

B(RING)

AGND

VTX

RSN

SLIC

A(TIP)

B(RING)

AGND

VTX

RSN

SLIC

B. Four- to Two-Wire Insertion Loss and Four- to Four-Wire Balance Return Signal

2

2

S1

C

S2

A(TIP)

B(RING)

AGND

VTX

RSN

SLIC

1

ωC

C. Longitudinal Balance

2

S2 Open, S1 Closed

S2 Closed, S1 Open