TSB41LV02A

IEEE 1394a TWO PORT CABLE TRANSCEIVER/ARBITER

SLLS400A – JANUARY 2000 – REVISED MAY 2000

9

POST OFFICE BOX 655303

Terminal Functions (Continued)

TERMINAL

TYPE

I/O

DESCRIPTION

NAME

NO.

TYPE

I/O

DESCRIPTION

TPB0+

TPB1+

35

44

Cable

I/O

Twisted-pair cable B differential signal pins. Board traces from each pair of positive and negative

differential signal pins should be kept matched and as short as possible to the external load resistors

TPB0–

TPB1–

34

43

Cable

I/O

differential signal pins should be kept matched and as short as possible to the external load resistors

and to the cable connector.

TPBIAS0

TPBIAS1

38

47

Cable

I/O

Twisted-pair bias output. This provides the 1.86 V nominal bias voltage needed for proper operation

of the twisted-pair cable drivers and receivers, and for signaling to the remote nodes that there is an

active cable connection. Each of these pins, except for an unused port, must be decoupled with a

1

µF capacitor to ground. For the unused port, this pin can be left unconnected.

XI

XO

59

60

Crystal

Crystal oscillator inputs. These pins connect to a 24.576 MHz parallel resonant fundamental mode

crystal. The optimum values for the external shunt capacitors are dependent on the specifications of

the crystal used (see

crystal selection in the APPLICATIONS INFORMATION section).

VDD_5V

16

Supply

5-V VDD pin. This pin should be connected to the LLC VDD supply when a 5-V LLC is used, and

should be connected to the PHY DVDD when a 3-V LLC is used. A combination of high frequency

decoupling capacitors near this pin is suggested, such as paralleled 0.1

µF and 0.001 µF. When this

pin is tied to a 5-V supply, all pin bus holders are disabled, regardless of the state of the ISO pin.

When this pin is tied to a 3-V supply, bus holders are enabled when the ISO pin is high.

–0.3 V to 4 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–0.3 V to 5.5 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electrostatic discharge (see Note 2)

HBM:4 kV, MM:200 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous total power dissipation

See Dissipation Rating Table

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0

°C to 70°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds

260

°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES:

1. All voltage values, except differential I/O bus voltages, are with respect to network ground.

2. HBM is Human body model, MM is machine model.

DISSIPATION RATING TABLE

PACKAGE

TA ≤ 25°C

POWER RATING

DERATING FACTOR‡

ABOVE TA = 25°C

TA = 70°C

POWER RATING

PAP§

3.98 W

39.8 mW/

°C

2.19 W

PAP¶

1.76 W

17.6 mW/

°C

0.97 W

PAP#

1.62 W

16.2 mW/

°C

0.89 W

‡ This is the inverse of the traditional junction-to-ambient thermal resistance (RθJA).

§ 1 oz. trace and copper pad with solder

¶ 1 oz. trace and copper pad without solder

# Standard JEDEC High-K board. For more information, refer to TI application note PowerPAD

Thermally Enhanced Package, TI literature number SLMA002.