14−5
14.4 Electrical Characteristics Over Recommended Ranges of Operating Conditions(unless otherwise noted)

14.4.1 Device

PARAMETER TEST CONDITION MIN MAX UNIT
VTH Power status threshold, CPS input400-k resistor4.7 7.5 V
VOTPBIAS output voltage At rated IO current 1.665 2.015 V
IIInput current (PC0−PC2 inputs) VCC = 3.6 V 5µA
Measured at cable power side of resistor.

14.4.2 Driver

PARAMETER TEST CONDITION MIN MAX UNIT
VOD Differential output voltage 56 , See Figure 14−1 172 265 mV
IDIFF Driver difference current, TPA+, TPA−, TPB+, TPB− Drivers enabled, speed signaling off −1.051.05mA
ISP200 Common-mode speed signaling current, TPB+, TPB− S200 speed signaling enabled −4.84−2.53mA
ISP400 Common-mode speed signaling current, TPB+, TPB− S400 speed signaling enabled −12.4−8.10mA
VOFF Off state differential voltage Drivers disabled, See Figure 14−1 20 mV
Limits defined as algebraic sum of TPA+ and TPA− driver currents. Limits also apply to TPB+ and TPB− algebraic sum of driver currents.
Limits defined as absolute limit of each of TPB+ and TPB− driver currents.
TPAx+
TPBx+
TPAx−
TPBx−
56

Figure 14−1. Test Load Diagram

14.4.3 Receiver

PARAMETER TEST CONDITION MIN TYP MAX UNIT
ZID
Differential impedance
Drivers disabled
4 7 k
ZID Differential impedance Drivers disabled 4 pF
ZIC
Common-mode impedance
Drivers disabled
20 k
ZIC Common-mode impedance Drivers disabled 24 pF
VTH−R Receiver input threshold voltage Drivers disabled −30 30 mV
VTH−CB Cable bias detect threshold, TPBx cable inputs Drivers disabled 0.6 1.0 V
VTH+Positive arbitration comparator threshold voltage Drivers disabled 89 168 mV
VTHNegative arbitration comparator threshold voltage Drivers disabled −168 −89 mV
VTH−SP200 Speed signal threshold TPBIAS−TPA common mode
voltage, drivers disabled
49 131 mV
VTH−SP400 Speed signal threshold
TPBIAS−TPA common mode
voltage, drivers disabled 314 396 mV