PDI1394P21 Datasheet, PDF (9/28 Pages) NXP Semiconductors – 3-port physical layer interface

Philips Semiconductors
3-port physical layer interface
Objective specification
PDI1394P21
10.0 CABLE DRIVER
SYMBOL
PARAMETER
TEST CONDITION
LIMITS
UNIT
MIN TYP MAX
V_OD
I_O(diff)
Differential output voltage
56 Ω load
Driver Difference current, TPA+, TPA–, TPB+, TPB– ¹
Drivers enabled,
speed signaling OFF
172
–1.05¹
265 mV
0.88¹ mA
100 Mbit/s speed signaling enabled –0.81
I_SP
Common mode speed signaling current, TPB+, TPB– ² 200 Mbit/s speed signaling enabled –4.84
400 Mbit/s speed signaling enabled –12.4
–0.44 mA
–2.53 mA
–8.10 mA
V_OFF 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
Z_ID
Differential input impedance
Z_IC
Common mode input impedance
V_TH-R
V_TH-CB
V_TH+
V_TH–
Receiver input threshold voltage
Cable bias detect threshold, TPBn cable inputs
Positive arbitration comparator threshold voltage
Negative arbitration comparator threshold voltage
V_{TH–SP200} Speed signal threshold
V_{TH–SP400} Speed signal threshold
I_CD
Connect detect output at TPBIAS pins
TEST CONDITION
Drivers disabled
Drivers disabled
Drivers disabled
Drivers disabled
Drivers disabled
Drivers disabled
TPBIAS–TPA common mode
voltage, drivers disabled
TPBIAS–TPA common mode
voltage, drivers disabled
Drivers disabled
MIN
10
20
–30
0.6
89
–168
LIMITS
TYP
14
MAX
4
24
30
1.0
168
–89
49
131
UNIT
kΩ
pF
kΩ
pF
mV
V
mV
mV
mV
314
396 mV
76
µA
1999 Jul 09
9