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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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XRT4500 датащи(PDF) 30 Page - Exar Corporation |
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XRT4500 датащи(HTML) 30 Page - Exar Corporation |
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30 / 99 page  áç áç áç áç XRT4500 MULTIPROTOCOL SERIAL NETWORK INTERFACE IC REV. 1.0.7 27 7. Input termination is enabled on High Speed V.11 Receivers. 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 DCE 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). 7. Input termination is enabled on High Speed V.11 Receivers. IDD in DTE 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=0 145 160 170 160 180 190 190 215 230 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=0 130 190 210 250 145 210 235 280 175 250 280 335 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=0 125 180 205 245 140 200 230 275 170 240 275 330 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=0 120 170 190 230 130 190 210 255 155 230 250 305 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=1 180 220 235 255 200 245 260 285 240 295 310 340 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=1 125 185 205 245 140 205 230 275 170 245 275 330 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=1 115 200 205 130 220 230 155 265 275 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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