Philips Semiconductors

Objective specification

PDI1394P21

3-port physical layer interface

1999 Jul 09

9

10.0

CABLE DRIVER

SYMBOL

PARAMETER

TEST CONDITION

LIMITS

UNIT

SYMBOL

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNIT

Differential output voltage

56

Ω load

172

265

mV

Drivers enabled,

speed signaling OFF

mA

2

100 Mbit/s speed signaling enabled

–0.81

–0.44

mA

200 Mbit/s speed signaling enabled

–4.84

–2.53

mA

400 Mbit/s speed signaling enabled

–12.4

–8.10

mA

OFF state differential voltage

Drivers disabled

20

mV

NOTES:

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

2. Limits defined as absolute limit of each of TPB+ and TPB– driver currents.

11.0

CABLE RECEIVER

SYMBOL

PARAMETER

TEST CONDITION

LIMITS

UNIT

SYMBOL

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNIT

Z

Differential input impedance

Drivers disabled

10

14

k

Ω

Differential input impedance

Drivers disabled

4

pF

Common mode input impedance

Drivers disabled

20

k

Ω

Common mode input impedance

Drivers disabled

24

pF

Receiver input threshold voltage

Drivers disabled

–30

30

mV

Cable bias detect threshold, TPBn cable inputs

Drivers disabled

0.6

1.0

V

Positive arbitration comparator threshold voltage

Drivers disabled

89

168

mV

Negative arbitration comparator threshold voltage

Drivers disabled

–168

–89

mV

Speed signal threshold

TPBIAS–TPA common mode

voltage, drivers disabled

49

131

mV

Speed signal threshold

TPBIAS–TPA common mode

voltage, drivers disabled

314

396

mV

Connect detect output at TPBIAS pins

Drivers disabled

76

µA