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LTC1385CN Datasheet(PDF) 1 Page - Linear Technology |
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LTC1385CN Datasheet(HTML) 1 Page - Linear Technology |
1 / 8 page 1 LTC1385 3.3V Low Power EIA/TIA-562 Transceiver S FEATURE DESCRIPTIO s Operates from a Single 3.3V Supply s Low Supply Current: ICC = 200µA s ICC = 35µA in Driver Disable Mode s ICC = 0.2µA in Shutdown Mode s ESD Protection Over ±10kV s Uses Small Capacitors: 0.1 µF s Operates to 120kBaud s Output Overvoltage Does Not Force Current Back into Supplies s EIA/TIA-562 I/O Lines Can Be Forced to ±25V Without Damage s Pin Compatible with LT1180A The LTC1385 is an ultra-low power, 2-driver/2-receiver EIA / TIA-562 transceiver which operates from a single 3.3V supply. The charge pump requires only four space- saving 0.1 µF capacitors. The transceiver operates in one of three modes: Normal, Driver Disable or Shutdown. In the Normal mode, ICC is only 200 µAintheunloadedcondition.IntheDriverDisable mode, the charge pump is turned off, the driver outputs are forced into three-state, both receivers are kept active, and ICC drops to 35µA. In the Shutdown mode, everything is turned off and ICC drops to 0.2µA. The LTC1385 is fully compliant with all data rate and overvoltage EIA / TIA-562 specifications. The transceiver can operate up to 120kbaud with a 1000pF, 3k Ω load. Both driver outputs and receiver inputs can be forced to ±25V without damage, and can survive multiple ±10kV ESD strikes. S APPLICATI s Notebook Computers s Palmtop Computers APPLICATI TYPICAL Quiescent and Shutdown Supply Current vs Temperature 2-Drivers/2-Receivers with Shutdown and Driver Disable TEMPERATURE (°C) 600 500 400 300 200 100 0 20 40 60 LTC1385 • TA02 80 0 1.2 1.0 0.8 0.6 0.4 0.2 0 QUIESCENT CURRENT SHUTDOWN CURRENT TEST CONDITION: VCC = 3.3V –20 LTC1385 • TA01 0.1 µF 0.1 µF 0.1 µF 0.1 µF LTC1385 DRIVER DISABLE 2 4 5 6 12 11 13 10 18 14 9 16 1 LOGIC INPUT LOGIC INPUT LOGIC OUTPUT LOGIC OUTPUT ON/OFF 17 3 7 15 562 OUTPUT VCC = 3.3V 562 OUTPUT 562 INPUT 562 INPUT 5k 5k 300k VCC 300k VCC 8 |
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