cbtl12131 NXP Semiconductors, cbtl12131 Datasheet - Page 6

• Manufacturer Part Number: cbtl12131
• Description: Cbtl12131 Displayport Multiplexer For Bidirectional Video In All-in-one Computer Systems
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 2.
CBTL12131
Product data sheet
Symbol
Control inputs
PATH_SEL
DDC_AUX_SEL
EQ5
PL5
LV5
TST_REXT
AUX_TERM_SRC G1
AUX_TERM_SNK G2
Status outputs
HPD_B_FLT
AUX_B_P_STATE D1
AUX_B_N_STATE D2
Pin description
6.2 Pin description
D10
E10
F1
Pin
E1
D9
F9
F10
Type
3.3 V low-voltage CMOS
single-ended input
3.3 V low-voltage CMOS
single-ended input
3.3 V low-voltage CMOS
quinary input
3.3 V low-voltage CMOS
quinary input
3.3 V low-voltage CMOS
quinary input
3.3 V low-voltage CMOS
single-ended input with
current sensing analog
input
3.3 V low-voltage CMOS
single-ended input
3.3 V low-voltage CMOS
single-ended input
3.3 V low-voltage CMOS
single-ended output
3.3 V low-voltage CMOS
single-ended output
3.3 V low-voltage CMOS
single-ended output
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 25 February 2011
Description
Input to set the path configuration of the CBTL12131. When LOW,
Ports A and B are mutually connected, as well as Ports C and D.
When HIGH, Port B is connected to Port D.
Input to select between DDC and AUX terminals for Port A. When
HIGH, the DDC_A_P and DDC_A_N terminals are connected to their
respective AUX_B_P and AUX_B_N terminals on Port B. When
LOW, the AUX_A_P and AUX_A_N terminals are connected to their
respective AUX_B_P and AUX_B_N terminals on Port B.
Equalizer setting input pin. This pin can be board-strapped to one of
five decode values: short to GND, resistor to GND, open-circuit,
resistor to VDD, short to VDD. See
Pre-emphasis level setting input pin. This pin can be board-strapped
to one of five decode values: short to GND, resistor to GND,
open-circuit, resistor to VDD, short to VDD. See
table.
Output differential swing setting input pin. This pin can be
board-strapped to one of five decode values: short to GND, resistor
to GND, open-circuit, resistor to VDD, short to VDD. See
truth table.
Test pin for NXP use, combined with external current sensing
function. Should be tied to ground via an external resistor of value
10 kΩ ± 1 %. This pin must not be left open-circuit to avoid possible
erroneous engagement of test mode in normal operation.
Input to enable source-type termination on the Port B AUX pair.
When HIGH, 100 kΩ termination resistors are applied to the Port B
AUX pair. When LOW, the termination resistors will be disabled
(high-impedance).
Input to enable sink-style termination on the Port B AUX pair. When
HIGH, a 500 kΩ termination resistor to VDD is applied to AUX_B_P.
When LOW, the termination resistor will be disabled
(high-impedance).
This outputs a filtered version of HPD_B.
DC state (HIGH or LOW) of AUX_B_P signal.
DC state (HIGH or LOW) of AUX_B_N signal.
DisplayPort multiplexer for bidirectional video
Table 7
CBTL12131
for truth table.
Table 8
© NXP B.V. 2011. All rights reserved.
for truth
Table 9
6 of 28
for