cbtl12131 NXP Semiconductors, cbtl12131 Datasheet - Page 4

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

NXP Semiconductors
5. Functional diagram
CBTL12131
Product data sheet
Fig 2.
AUX_TERM_SRC
AUX_TERM_SNK
(faces GPU for
(faces GPU for
external video)
internal video)
ML_C_[3:0]N
ML_C_[3:0]P
ML_A_[3:0]P
ML_A_[3:0]N
(1) Switch is in ON (conducting) position when qualifier = TRUE.
Port C
Port A
AUX_C_P
AUX_C_N
AUX_A_N
DDC_A_0
DDC_A_1
AUX_A_P
GND
HPD_C
VDD
HPD_A
Functional diagram
EQ5
PL5
LV5
4
3
DDC_AUX_SEL#
and PATH_SEL#
and HPD_B_FLT
DDC_AUX_SEL
and PATH_SEL#
and HPD_B_FLT
4
4
PATH_SEL#
PATH_SEL#
DDC_AUX_SEL
PATH_SEL#
and HPD_B_FLT
TST_REXT
PATH_SEL
CONFIGURATION
TERMINATION
+
R AUX100_N
R AUX100_P
AUX
100 kΩ
100 kΩ
EQ
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4
PATH_SEL = 0: disabled
PATH_SEL = 1: enabled
Rev. 1 — 25 February 2011
FILTER
HPD
R AUX500_P
R AUX4M7N
500 kΩ
CBTL12131
4.7 MΩ
+
DisplayPort multiplexer for bidirectional video
R PD_HPD
R AUX4M7P
4.7 MΩ
200 kΩ
DETECTION
AUX
PATH_SEL
PATH_SEL = 0:
High-Z
PATH_SEL = 1:
active
R PD_HPD
200 kΩ
CBTL12131
002aae674
4
4
© NXP B.V. 2011. All rights reserved.
(faces external DP
ML_D_[3:0]P
ML_D_[3:0]N
AUX_D_P
AUX_D_N
HPD_D
ML_B_[3:0]P
ML_B_[3:0]N
AUX_B_P
AUX_B_N
HPD_B
AUX_B_P_STATE
AUX_B_N_STATE
HPD_B_FLT
(faces eDP
connector)
connector)
Port D
Port B
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