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MAX3030ECSE Datasheet(PDF) 6 Page - Maxim Integrated Products |
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MAX3030ECSE Datasheet(HTML) 6 Page - Maxim Integrated Products |
6 / 14 page ±15kV ESD-Protected, 3.3V Quad RS-422 Transmitters 6 _______________________________________________________________________________________ Pin Description ENABLE RESPONSE TIME MAX3030E toc13 20ns/div ENABLE 1V/div DIFFERENTIAL OUTPUT 2V/div MAX3033E EYE DIAGRAM MAX3030E toc14 100ns/div DO_+ 1V/div DO_- 1V/div Typical Operating Characteristics (continued) (VCC = +3.3V and TA = +25°C, unless otherwise noted.) PIN MAX3030E/ MAX3031E MAX3032E/ MAX3033E NAME FUNCTION 1, 7, 9, 15 1, 7, 9, 15 DI1, DI2, DI3, DI4 Transmitter Inputs. When the corresponding transmitter is enabled, a low on DI_ forces the noninverting output low and inverting output high. Similarly, a high on DI_ forces noninverting output high and inverting output low. 2, 6, 10, 14 2, 6, 10, 14 DO1+, DO2+, DO3+, DO4+ Noninverting RS-422 Outputs 3, 5, 11, 13 3, 5, 11, 13 DO1-, DO2-, DO3-, DO4- Inverting RS-422 Outputs 4 — EN Transmitter Enable Input: Active HIGH. Drive EN HIGH to enable all transmitters. When EN is HIGH, drive EN LOW to disable (three-state) all the transmitters. The transmitter outputs are high impedance when disabled. EN is hot-swap protected (see the Hot Swap section). 8 8 GND Ground 12 — EN Transmitter Enable Input: Active LOW. Drive EN LOW to enable all transmitters. When EN is LOW, drive EN HIGH to disable all the transmitters. The transmitter outputs are high impedance when disabled. EN is hot-swap protected (see the Hot Swap section). — 4 EN1&2 Transmitter Enable Input for Channels 1 and 2. Drive EN1&2 HIGH to enable the corresponding transmitters. Drive EN1&2 LOW to disable the corresponding transmitters. The transmitter outputs are high impedance when disabled. EN1&2 is hot- swap protected (see the Hot Swap section). — 12 EN3&4 Transmitter Enable Input for Channels 3 and 4. Drive EN3&4 HIGH to enable the corresponding transmitters. Drive EN3&4 LOW to disable the corresponding transmitters. The transmitter outputs are high impedance when disabled. EN3&4 is hot- swap protected (see the Hot Swap section). 16 16 VCC Positive Supply; +3V ≤ VCC ≤ +3.6V. Bypass VCC to GND with a 0.1µF capacitor. |
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