AD8392

Rev. 0 | Page 15 of 16

START 3kHz

–120

–110

–100

–90

–80

–70

–60

–50

–40

–30

–20

STOP 145kHz

14.2kHz/

LIGHTNING AND AC POWER FAULT

The AD8392 can be used is as an ADSL/ADSL2+ line driver. In

this application, the line driver is transformer-coupled to the

twisted pair telephone line and could be subjected to large line

transients resulting from events such as lightning strikes or

downed power lines. In this type of environment, additional

circuitry may be required to protect the AD8392 from damage

that may occur as a result of these events. Using a minimal

amount of external protection, the AD8392 has successfully

passed overvoltage and overcurrent compliance testing per the

ITU K-20 specification. For details on the external protection

circuitry, contact the high current driver product line at

high_current_drivers.com@analog.com.

Figure 40. Out-of-Band MTPR