8
Lucent Technologies Inc.
Data Sheet
February 1998
LH1465AB/AAE ISDN dc Termination IC
Test Circuits
(continued)
12-1941
Figure 6. Test Circuit for Activate and Deactivate Times
12-1942
Figure 7. Applied Waveform for Activation Test
1
μ
F
DUT
85
85 mH
ACTIVATION: SEE FIG. 7
DEACTIVATION: SEE FIG. 8
500 ms
t1
40 V
30 V
20 V
10 V
0
MEASURE
SOURCE IMPEDANCE:
200
—4 k
43.5 V
