LTC1348 LINER [Linear Technology], LTC1348 Datasheet
LTC1348
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LTC1348 Summary of contents
Page 1
... Shutdown or Receiver Alive mode or with the power off. The receiver outputs assume a high impedance state in Receiver Disable or with the power off. The LTC1348 is fully compliant with all data rate and overvoltage RS232 specifications. The transceiver oper- ates up to 120kbaud with all drivers loaded with 1000pF, 3k ...
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... V ................................................................... 30 sec Driver Output .............................................. Indefinite Receiver Output .......................................... Indefinite Operating Temperature Range LTC1348C................................................ LTC1348I............................................ – Storage Temperature Range ................ – 150 C Lead Temperature (Soldering, 10 sec)................. 300 ELECTRICAL C HARA TERISTICS 5.5V 0.1 F, unless otherwise noted. ...
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... Mode) LHR t (Figure 2) (Receiver Alive Mode) HLR t (Figure 2) (Receiver Alive Mode) LHR Note 3: Supply current measurement in Shutdown is performed with V and V DREN Note 4: Supply current measurement in Receiver Alive mode is performed with and V DREN LTC1348 MIN TYP MAX 8.0 7.5 – 8.0 – 7.0 0.2 0.6 2.0 0 ...
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... 100 150 5000 DRIVER DATA RATE LTC1348 G02 Driver Leakage in SHUTDOWN vs Temperature ( 3. –20V OUT 20V OUT 100 TEMPERATURE ( C) LTC1348 G07 200 250 LTC1348 G03 LTC1348 G06 ...
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... All Drivers Alive. All Drivers Shutdown. All Driver Outputs in Three-State. All Driver Pull-Up Resistors Disconnect From All Drivers Alive. LTC1348 = 0V. The driver outputs are CC RECEIVERS All Receivers Shutdown. All Receiver Outputs Assume High Impedance. All Receiver Outputs in Three-State. All Receivers Alive. ...
Page 6
... This allows the LTC1348 drivers to provide guar- anteed 5V RS232-compliant voltage levels with a 3.3V supply. With all outputs loaded with 3k , the LTC1348 can typically swing 5V with voltages as low as 2.85V. It will meet the 3.7V EIA562 levels with supply voltages as ...
Page 7
... RS232 serial port, with only one driver (TX) driven at high speed and the other two drivers (RTS and DTR) driven at a relatively low data rate or at DC. Under the same conditions, the LTC1348 can go as fast as 350kbaud and still meet EIA562 ( 3.7V) minimum driver output levels. – ...
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... LTC1348 PACKAGE DESCRIPTION 0.205 – 0.212** (5.20 – 5.38) 0 – 8 0.005 – 0.009 0.022 – 0.037 (0.13 – 0.22) (0.55 – 0.95) * DIMENSIONS DO NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE ** DIMENSIONS DO NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE 0.291 – ...