DIX4192IPFB datasheet(57/71 Pages) TI2

57 / 71 page

SN74AVC1T45

orEquivalent

IfVIO<+3.0V.

VIO

+5V

+3.3V

ToBalancedorUnbalanced

LineInterface

AESOUT

ToBalancedorUnbalanced

LineInterface

SN75ALS191

SN74AHCT1G125

orEquivalent

+5V

Directtoexternallogic

operatingfromtheVIOsupply.

AESOUT

To+5VLogic

(VIOsupply=+3.0Vto+3.3V)

(1)ToshibaTOTX141,TOTX173,TOTX176,TOTX179,orequivalent.

SN74AVC1T45

orEquivalent

IfVIO<+3.0V.

VIO

+3.3V

All-PlasticFiber

(5or10metersmaximum)

AESOUT

Optical

Transmitter

(1)

DIX4192

www.ti.com

SBFS031F – FEBRUARY 2006 – REVISED SEPTEMBER 2016

Product Folder Links: DIX4192

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Application Information (continued)

Figure 79. Interfacing to an Optical Transmitter Module

The AESOUT output may also be used to drive external logic or line driver devices directly. Figure 80 shows the

recommended logic interface techniques, including connections with and without level translation. Figure 81

shows an external line driver interface using the Texas Instruments SN75ALS191 dual differential line driver. If

the VIO supply of the DIX4192 is set from 3 V to 3.3 V, no logic level translation will be required between the

AESOUT output and the line driver input. If the VIO supply voltage is below this range, then the optional logic

level translation logic of Figure 81 will be required. The SN75ALS191 dual line driver is especially useful in

applications where simultaneous 75-

Ω and 110-Ω line interfaces are required.

Figure 80. CMOS or TTL Output Logic Interface

Figure 81. External Line Driver Interface

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