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參數(shù)資料
| 型號(hào)： | CBTL12131ET |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 模擬信號(hào)調(diào)理 |
| 英文描述： | DisplayPort multiplexer for bidirectional video in all-in-one computer systems |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PBGA64 |
| 封裝： | 6 X 6 MM, 0.80 MM HEIGHT, 0.50 MM PITCH, PLASTIC, MO-195, SOT543-1, TFBGA-64 |
| 文件頁數(shù)： | 3/28頁 |
| 文件大?。?/td> | 215K |
| 代理商： | CBTL12131ET |
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CBTL12131
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 1 — 25 February 2011
11 of 28
NXP Semiconductors
CBTL12131
DisplayPort multiplexer for bidirectional video
7.3 AUX and DDC switches/multiplexers
For all ports except Port A, only a single pair of signal lines is provided. The path
configuration for the AUX/DDC channels follows that of the Main Link: when
PATH_SEL = LOW, Ports C and D are connected; when PATH_SEL = LOW and
HPD_B_FLT = HIGH, also Ports A and B are connected; when PATH_SEL = HIGH,
Port D is connected to Port B, and Ports A and C are isolated (see Figure 6).
Port A additionally provides a second pair of signal lines, to allow bypassing of external
AC-coupling capacitors (normally placed in series with the AUX channel) in the case when
an external ++DP cable adapter is detected, and therefore a DC path needs to be
provided from the external DP connector’s AUX_P and AUX_N lines, in order to support
DDC communication across those lines between the External Graphics GPU (facing
Port A) and the external ++DP cable adapter. Selection between the DDC and AUX
channels of Port A is determined by the input DDC_AUX_SEL: when
DDC_AUX_SEL = LOW, the active channel is AUX_A; when DDC_AUX_SEL = HIGH,
the active channel is DDC_A. Typically, DDC_AUX_SEL is driven by a qualified version of
the DP ‘Cable Detect’ signal (pin 4 of a miniDP connector or pin 13 of a normal DP
connector) and will be HIGH when such a cable adaptor is connected and powered.
Fig 6.
AUX and DDC channel topology
002aae678
PATH_SEL = 0: off
PATH_SEL = 1: pass
AUX_A
AUX_B
AUX_C
AUX_D
select between
AUX and DDC
DDC_A
HPD_B_FLT = 1 and PATH_SEL = 0 and DDC_AUX_SEL = 0: pass
else: off
HPD_B_FLT = 1 and PATH_SEL = 0 and DDC_AUX_SEL = 1: pass
else: off
PATH_SEL = 0: pass
PATH_SEL = 1: off
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| CBTL12131ET,518 | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 1.1 MUX BI-DRC VIDEO 1 DISPLAYPORT CONN RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| CBTL12131ET518 | 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述: |
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| CBTL1610A1UKAZ | 制造商:NXP Semiconductors 功能描述:LINEAR IC |
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