TSB17BA1

IEEE STD 1394b SINGLEPORT CABLE TRANSCEIVER

SLLS568C − JANUARY 2004 − REVISED MARCH 2004

2

POST OFFICE BOX 655303

functional block diagram

Equalizer

1394b

Driver

AC

Coupling

Comparator

UTP5

Driver

Power-Up

Control

Voltage

Regulator

UTP5_INx

UTP5

Cable Side

UTP5_OUTx

1394b

PHY Side

BETA_OUTx

BETA_INx

equalizer

The equalizer applies equalization to the signal received from the UTP5 cable to boost SNR to allow sensing

of the data.

1394b driver

This block drives the signal detected and enhanced by the equalizer from the UTP cable to a 1394b PHY port.

ac coupling

This block blocks direct current signals to the comparator. Only ac signals are propagated through this block.

comparator

This block converts 1394b signals from the 1394b PHY into levels capable of driving the UTP5 driver.

UTP5 driver

This block drives signals onto the UTP5 cable.

power-up control

This block provides a signal for the control of the device relative to the state of the supply voltage.

voltage regulator

This block regulates an externally provided 3−3.6 V down to an internally used 1.8 V.