TP3421

      The TP3421  S intericace device is designed as a conplete monolithic transceiver for data transmission on twisted pair subscriber loops. TP3421 is built on national's advanced 1.5 micron M2CMOS process, and requires only a single +5V supply.All functions specified in CCITT recommendation I.430 and ANSI T1.605-1988 for ISDN basic access at the 'S' and 'T' interfaces are provided , and the device can be configued to operate either in a TE (Terminal Equipment), in an NT-1 or NT-2 (network termination) or as a PABX line-card or trunk-card device.
      TP3421 has many features.The first one is that 2B + D 4-write 192kb/s transceiver.The second one is selectable TE or NT mode.The third one is provides all CCITT I.430 ;ayer 1 functions.The next one is exceeds I.430 range: 1.5km point-to-point.The next one is adaptive receiver for high noise immunity.The next one is adaptive and fixed timing options for NT-1.The next one is clock resynchronizer and elastic buffers for NT-2/LT.The next one is slave-slave mode for NT-2 trunks.The next one is S and Q channels with automatic 3x checking.The next one is GCI (general circuit interface) compatible.The next one is TP 3054/7 codec/filter combo compatibility.The next one is signal +5V supply.The next one is it would be 20-pin packages.That are all the features.
      Some absolute maximum ratings of TP3421 have been concluded into points as follow.The first one is about its Vcc to GND which would be 7V.The second one os about its voltage at Li, Lo pins which would be Vcc+1 V to GND-1 V.The next one is about its voltage at any digital input which would be Vcc+1 V to GND-1 V.The next one is about its storage temperature range which would be from -65 to +150°C.The next one is current at Lo pins which would be +/- 100mA.The next one is about its current at any digital output which would be +/- 50mA.The next one is about its lead temperature (soldering 10sec) which would be 300°C.And so on.For more information of TP3421 please contact us.