TSB21LV03

IEEE 1394-1995 TRIPLE-CABLE TRANSCEIVER/ARBITER

SLLS230A – MARCH 1996 – REVISED DECEMBER 1996

9

POST OFFICE BOX 655303

electrical characteristics over recommended operating conditions (unless otherwise noted)

driver

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNIT

VOD

Differential output voltage

56-

Ω load

172

265

mV

V(OFF) Off-state common-mode output voltage

Drivers disabled

20

mV

IO(diff)

Differential current (TPA+, TPA–, TPB+, TPB–)

Driver enabled,

Speed signaling off

–1.05†

1.05†

mA

I(SP)

Common-mode speed signaling current

(TPB+, TPB–)

200-Mbit speed signaling enabled

–2.53‡

–4.84‡

mA

† Limits are defined as the algebraic sum of TPA+ and TPA– driver currents. Limits also apply to TPB+ and TPB– as the algebraic sum of driver

currents.

‡ Limits are defined as the absolute limit of each of TPB+ and TPB– driver currents.

receiver

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNIT

VIT

Input threshold voltage

–30

30

mV

VIT

Cable bias-detect input threshold voltage, TPBn cable inputs

Driver disabled

0.6

1.0

V

IIC

Common-mode input current

Driver disabled

–20

20

µA

ZID

Differential input impedance

Driver disabled

15

6

k

Ω

pF

ZIC

Common-mode impedance

Driver disabled

20

24

k

Ω

pF