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XRT4500CV Datasheet(PDF) 29 Page - Exar Corporation |
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XRT4500CV Datasheet(HTML) 29 Page - Exar Corporation |
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29 / 99 page  XRT4500 áç áç áç áç MULTIPROTOCOL SERIAL NETWORK INTERFACE IC REV. 1.0.7 26 ELECTRICAL CHARACTERISTICS NOTES: 1. Absolute Maximum Ratings are those beyond which the safety of a device may be impaired. 2. All currents into device pins are positive; all cur- rents out of device are negative. All voltages are referenced to device ground unless otherwise specified. 3. The efficiency of the switching regulator and the charge pump is approximately 70%. The actual power dissipation of the XRT4500 at 5V, with maxi- mum loading, is 660mW in V.10, 700mW in V.11, 950mW in V.35 and 800mW in the V.28 mode. In the “Reduced Power Mode” the XRT4500 chip dis- sipation is 310mW. 4. "Typical Load" is the corresponding receiver in another XRT4500 operating in the DTE mode. 5. A 50% duty cycle square wave, at the specified fre- quency in the table, is applied to all Clock and Data lines of the High Speed Transmitters). 6. A 10 KHz 50% duty cycle square wave is applied to all Handshake Lines (Low Speed Transmitters). Supply Voltage MIN TYP MAX UNITS TEST CONDITIONS Vpp +12V Supply 11 12 13 V Full Load on V.28 Vss -5.7 -6.0 -6.3 V Full Load on V.28 IDD in DCE Mode- Ta=25°C, VDD=5V, Data and Clock at maximum operating frequencies unless other- wise specified PARAMETER MIN TYP MAX UNITS TEST CONDITIONS V.10 M0=0, M1=0, M2=0 145 160 180 160 180 200 190 215 240 mA No Load or Signal, Tx Digital Inputs tied High Typical Load at 10 kHz Typical Load at 50 kHz EIA-530-A (V.11) M0=1, M1=0, M2=0 125 205 230 275 140 230 255 305 170 275 305 365 mA No Load or Signal, Tx Digital Inputs tied High Typical Load at 1 MHz Typical Load at 4 MHz Typical Load at 10 MHz EIA-530, RS449, V.36 M0=0, M1=1, M2=0 120 195 225 270 135 215 250 300 160 260 300 360 mA No Load or Signal, Tx Digital Inputs tied High Typical Load at 1 MHz Typical Load at 4 MHz Typical Load at 10 MHz X.21 M0=1, M1=1, M2=0 115 195 215 260 130 215 240 290 155 260 290 350 mA No Load or Signal, Tx Digital Inputs tied High Typical Load at 1 MHz Typical Load at 4 MHz Typical Load at 10 MHz V.35 M0=0, M1=0, M2=1 215 255 265 290 240 285 295 320 290 340 355 385 mA No Load or Signal, TX Digital Inputs tied High Typical Load at 1 MHz Typical Load at 4 MHz Typical Load at 10 MHz RESERVED M0=1, M1=0, M2=1 120 200 225 270 135 225 250 300 160 270 300 360 mA No Load or Signal, Tx Digital Inputs tied High Typical Load at 1 MHz Typical Load at 4 MHz Typical Load at 10 MHz RS-232 (V.28) M0=0, M1=1, M2=1 115 215 225 130 240 250 155 290 300 mA No Load or Signal, Tx Digital Inputs tied High Typical Load at 10 kHz Typical Load at 100 kHz POWER DOWN M0=1, M1=1, M2=1 80 90 110 mA Reduced Power Mode |
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