NXP Semiconductors MPC5746R, Datasheet

Page: 47 / 98

Table 26. Aurora LVDS electrical characteristics
Symbol Parameter Conditions
Value
1
Unit
Min Typ Max
Transmitter
F
TX
Transmit Data Rate — — — 1.25 Gbps
|V
OD_LVDS
| Differential output voltage swing
(terminated)
2
— 400 600 800 mV
t
TR_LVDS
Rise/Fall time (10%–90% of swing) — 60 — — ps
R
TV_L
Differential Terminating resistance — 81 100 120 Ω
T
Loss
Transmission Line Loss due to loading
effects — — — 100
3
dB
Transmission line characteristics (PCB track)
L
LINE
Transmission line length — — — 20 cm
Z
LINE
Transmission line characteristic impedance — 45 50 55 Ω
C
AC
External AC Coupling Capacitance Values are nominal, valid
up to ±50%
100 — 270 pF
Receiver
F
RX
Receive Data Rate — — — 1.25 GHz
|
Δ
VI_L
| Differential input voltage — 200 — 1000 mV
R
RV_L
Terminating resistance V
DD_HV_IO_BD
= 5V ±10% 81 100 120 Ω
1. All specifications valid for maximum transmit data rate F
TX
.
2. The minimum value of 400 mV is only valid for differential resistance (R
V_L
) = 99 ohm to 101 ohm. The differential output
voltage swing tracks with the value of R
V_L
.
3. Transimission line loss maximum value is specified for the maximum drive level of the Aurora transmit pad.
Power management PMC POR LVD sequencing
16.1 Power management electrical characteristics
The power management module monitors the different power supplies. It also generates
the internal supplies that are required for correct device functionality. The power
management is supplied by the V
DD_HV_PMC
supply.
16.1.1 Recommended power transistors
The following NPN transistors are recommended for use with the on-chip voltage
regulator controller: ON Semiconductor
TM
NJD2873. The collector of the external
transistor is preferably connected to the same voltage supply source as the V
DD_HV_PMC
pin.
16
Power management PMC POR LVD sequencing
SPC5746R Microcontroller Data Sheet, Rev. 6, 06/2017
NXP Semiconductors 47