IMX8QXPIEC datasheet(85/132 Pages) NXP

85 / 132 page

Electrical characteristics

i.MX 8QuadXPlus and 8DualXPlus Industrial Applications Processors, Rev. 0, 05/2020

NXP Semiconductors

4.10.8.5 MIPI-DSI LP-RX specifications

δV/δtSR1,5,6,7 Slew Rate @ CLOAD= 0 pF

—

500 mV/ns

Slew Rate @ CLOAD= 5 pF

—

200 mV/ns

Slew Rate @ CLOAD= 20 pF

—

150 mV/ns

Slew Rate @ CLOAD= 70 pF

—

100 mV/ns

CLOAD

Load Capacitance

—

1 CLOAD includes the low equivalent transmission line capacitance. The capacitance of TX and RX are assumed to always be <

10 pF. The distributed line capacitance can be up to 50 pF for a transmission line with 2 ns delay.

2 The rise-time of TREOT starts from the HS common-level at the moment of the differential amplitude drops below 70 mV, due

to stopping the differential drive.

3 With an additional load capacitance CCM between 0 to 60 pF on the termination center tap at RX side of the lane.

4 This parameter value can be lower then TLPX due to differences in rise vs. fall signal slopes and trip levels and mismatches

between Dp and Dn LP transmitters. Any LP exclusive-OR pulse observed during HS EoT (transition from HS level to LP-11)

is glitch behavior as described in Low-Power Receiver section.

5 When the output voltage is between 15% and below 85% of the fully settled LP signal levels.

6 Measured as average across any 50 mV segment of the output signal transition.

7 This value represents a corner point in a piecewise linear curve.

Table 85. MIPI low power receiver DC specifications

Symbol

Parameter

Min

Typ

Max

Unit

VIH

Logic 1 input voltage

880

—

1.3

VIL

Logic 0 input voltage, not in ULP state

—

550

VIL-ULPS

Logic 0 input voltage, ULP state

—

300

VHYST

Input hysteresis

—

Table 86. MIPI low power receiver AC specifications

Symbol

Parameter

Min

Typ

Max

Unit

eSPIKE1,2

1 Time-voltage integration of a spike above VIL when in LP-0 state or below VIH when in LP-1 state.

2 An impulse below this value will not change the receiver state.

Input pulse rejection

—

300

V.ps

TMIN-RX3

3 An input pulse greater than this value shall toggle the output.

Minimum pulse width response

—

VINT

Peak Interference amplitude

—

200

fINT

Interference frequency

450

—

MHz

Table 84. MIPI low-power transmitter AC specifications (continued)

Symbol

Parameter

Min Typ Max

Unit

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