List of figures

Figure 1.

Pin connections ................................................................... 2

Figure 2.

Typical application schematic .......................................................... 2

Figure 3.

Example of implementation in a PCB..................................................... 3

Figure 4.

Block diagram .................................................................... 4

Figure 5.

Example of typical application.......................................................... 5

Figure 6.

Driver differential output voltage with common-mode load ..................................... 11

Figure 7.

Driver differential and common-mode output with RS-485 load .................................. 11

Figure 8.

Driver differential output rise and fall times and propagation delays ............................... 12

Figure 9.

Driver enable and disable times with active high output and pull-down load ......................... 12

Figure 10.

Driver enable and disable times with active low output and pull-up load ............................ 12

Figure 11.

Receiver output rise and fall times and propagation delay ..................................... 13

Figure 12.

Receiver enable/disable times with driver enabled........................................... 13

Figure 13.

Receiver enable/disable times with driver disabled .......................................... 14

Figure 14.

Short-circuit output current measurement................................................. 14

Figure 15.

Driver ICC vs VCC supply driver ICC versus temperature 60 Ω load................................ 15

Figure 16.

Driver ICC vs temperature 60 Ω load .................................................... 15

Figure 17.

Driver output on 60 Ω load, clock @10 MHz 3V6pp .......................................... 15

Figure 18.

Driver output on 60 Ω load, speed selected @20 MHz 3V6pp ................................... 15

Figure 19.

Eye diagram 20 Mbps short line ....................................................... 15

Figure 20.

Equivalent input and output schematic diagrams ............................................ 16

Figure 21.

DFN10 package outline ............................................................. 18

Figure 22.

DFN10 recommended footprint ........................................................ 19

STR485

List of figures

DS12713 - Rev 1

page 23/24