PTN3393 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 4 — 10 June 2014 20 of 30
NXP Semiconductors
PTN3393
2-lane DisplayPort to VGA adapter IC
12.3 DisplayPort receiver AUX CH
[1] Results in the bit rate of 1 Mbit/s including the overhead of Manchester II coding.
[2] Each pulse is a ‘0’ in Manchester II code.
[3] Period after the AUX CH STOP condition for which the bus is parked.
[4] Maximum allowable UI variation within a single transaction at connector pins of a transmitting device. Equal to 24 ns maximum. The
transmitting device is a source device for a request transaction and a sink device for a reply transaction.
[5] Maximum allowable UI variation within a single transaction at connector pins of a receiving device. Equal to 30 ns maximum. The
transmitting device is a source device for a request transaction and a sink device for a reply transaction.
[6] V
AUX_DIFFp-p
= 2 V
AUX+
V
AUX
.
[7] Common-mode voltage is equal to V
bias_TX
(or V
bias_RX
) voltage.
[8] Steady-state common-mode voltage shift between transmit and receive modes of operation.
[9] Total drive current of the transmitter when it is shorted to its ground.
[10] The AUX CH AC coupling capacitor placed both on the DisplayPort source and sink devices.
pre-emphasis = 20Log(V
DIFF_PRE
/V
DIFF
)
Fig 7. Definitions of pre-emphasis and differential voltage
002aaf363
V
D+
V
CM
V
D−
V
DIFF_PRE
V
DIFF
Table 10. DisplayPort receiver AUX CH characteristics
Symbol Parameter Conditions Min Typ Max Unit
UI unit interval AUX
[1]
0.4 0.5 0.6 s
N
PRECHARGE_PULSES
number of precharge pulses
[2]
10 - 16
t
AUX_BUS_PARK
AUX CH bus park time
[3]
10 - - ns
t
jit(cc)
cycle-to-cycle jitter time transmitting device
[4]
- - 0.04 UI
receiving device
[5]
- - 0.05 UI
V
AUX_DIFFp-p
AUX differential peak-to-peak
voltage
transmitting device
[6]
0.39 - 1.38 V
receiving device
[6]
0.32 - 1.36 V
R
AUX_TERM(DC)
AUX CH termination DC resistance informative - 100 -
V
AUX_DC_CM
AUX DC common-mode voltage
[7]
0- 2.0V
V
AUX_TURN_CM
AUX turnaround common-mode
voltage
[8]
--0.4V
I
AUX_SHORT
AUX short-circuit current limit
[9]
--90mA
C
AUX
AUX AC coupling capacitor
[10]
75 - 200 nF