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TP3406 Datasheet

Part Number TP3406
Manufacturers National Semiconductor
Logo National Semiconductor
Description DASL Digital Adapter for Subscriber Loops
Datasheet TP3406 DatasheetTP3406 Datasheet (PDF)

TP3406 DASL Digital Adapter for Subscriber Loops November 1992 TP3406 DASL Digital Adapter for Subscriber Loops General Description The TP3406 is a complete monolithic transceiver for data transmission on twisted pair subscriber loops It is built on National’s double poly microCMOS process and requires only a single a 5 Volt supply Alternate Mark Inversion (AMI) line coding in which binary ‘1’s are alternately transmitted as a positive pulse then a negative pulse is used to ensure low error ra.

  TP3406   TP3406






Part Number TP3406
Manufacturers Top Power
Logo Top Power
Description High Efficiency PWM Step-Down DC/DC Converter
Datasheet TP3406 DatasheetTP3406 Datasheet (PDF)

TP3406 1.5MHz, 600mA, High Efficiency PWM Step-Down DC/DC Converter General Description The TP3406 is a high-efficiency pulse-width-modulated(PWM) step-down DC-DC converter. Capable of delivering600mA output current over a wide input voltage range from2.5V to 5.5V, the TP3406 is ideally suited for port -ableelectronic devices that are powered from 1-cell Li-ion battery or from other power sources within the range suchas cellular phones, PDAs and handy-terminals. Internal synchronous rectifie.

  TP3406   TP3406







DASL Digital Adapter for Subscriber Loops

TP3406 DASL Digital Adapter for Subscriber Loops November 1992 TP3406 DASL Digital Adapter for Subscriber Loops General Description The TP3406 is a complete monolithic transceiver for data transmission on twisted pair subscriber loops It is built on National’s double poly microCMOS process and requires only a single a 5 Volt supply Alternate Mark Inversion (AMI) line coding in which binary ‘1’s are alternately transmitted as a positive pulse then a negative pulse is used to ensure low error rates in the presence of noise with lower emi radiation than other codes such as Bi-phase (Manchester) Full-duplex transmission at 144 kb s is achieved on a single twisted wire pair using a burst-mode technique (Time Compression Multiplexed) Thus the device operates as an ISDN ‘U’ Interface for short loop applications typically in a PBX environment providing transmission for 2 B channels and 1 D channel On 24 cable the range is up to 800 meters System timing is based on a Master Slave configuration with the line card end being the Master which controls loop timing and synchronisation All timing sequences necessary for loop activation and de-activation are generated on-chip Selection of Master and Slave mode operation is programmed via the Microwire Control Interface A 2 048 MHz clock which may be synchronized to the system clock controls all transmission-related timing functions Features Complete ISDN PBX 2-Wire Data Transceiver including Y 2 B plus D channel interface for PBX U Interfa.


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