PTN3393 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved.
Objective product brief Rev. 2 — 27 July 2012 3 of 5
NXP Semiconductors PTN3393
2-lane DisplayPort to VGA adapter test IC
HPD 13 3.3 V TTL
single-ended outpu t Hot Plug Detect
RGB DAC outputs
BLU 26 analog output ‘blue’ current analo g output
GRN 28 analog output ‘green’ current analog output
RED 31 analog output ‘red’ current analog output
RSET 30 analog input/output DAC full-scale current control resistor. Pull down to ground by an
external 1.2 kΩ±1 % resistor.
DDC
SCL 20 single-ended 5 V
open-drain DDC I/O 5 V sink-side DDC clock I/O. Pulled up by external resistor to 5 V.
SDA 22 single-ended 5 V
open-drain DDC I/O 5 V sink-side DDC data I/O. Pulled up by external resistor to 5 V.
Monitor-side sync
HSYNC 25 single-ended 3.3 V
TTL output horizontal sync signal to monitor
VSYNC 24 single-ended 3.3 V
TTL output vertical sync signal to monitor
JTAG
TCK 15 input JTAG clock input
TDO 16 output JTAG data output
TMS 17 input JTAG mode select input
TRST 18 input JTAG reset (active LOW) input
TDI 19 input JTAG data input
Miscellaneous
S0 37 input Open (internal pull-down) = logic 0
Implement VGA-side monitor detect according to VESA DisplayPort
Standard v1.1a, sections 7 and 8.
HIGH (external pull-up) = logic 1
Set HPD HIGH upon VGA monitor detection; set HPD LOW upon VGA
monitor detachment.
S1 38 input reserved; leave open-circuit (default internal pul l-down)
S2 39 input Open (internal pull-down) = logic 0 to set default I2C-bus speed to
50 kbit/s.
HIGH (external pull-up) = logic 1, to set default I2C-bus speed to 10
kbit/s.
This pin may be left open-circuit (internal pull-down) or tied to VDD
according to the desired default I2C-bus speed. See more explanation
about S2 pin setting and DPCD register 00109h.
S3 40 input reserved; leave open-circuit (default internal pul l-down)
RESET 11 input Hardware reset input (active LOW); internal pull-up. A capacitor must be
connected between this pin and groun d. A 1 μF capacitor is
recommended.
CLK_O 12 output DisplayPort receiver test clock output
OSC_IN 33 input crystal oscillator input
Table 1. Pin description …continued
Symbol Pin Type Description