參數(shù)資料
型號： TMDS442PNP
廠商： TEXAS INSTRUMENTS INC
元件分類： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PQFP128
封裝： GREEN, PLASTIC, TQFP-128
文件頁數(shù)： 26/45頁
文件大?。?/td> 1977K
代理商： TMDS442PNP
www.ti.com
Quad
Terminated
TMDSRx
withEQ
Quad
Terminated
TMDSRx
withEQ
Quad
Terminated
TMDSRx
withEQ
Quad
TMDS Tx
Quad
Terminated
TMDSRx
withEQ
Quad
TMDS Tx
MUX
SCL1
SDA1
SCL3
SDA3
SCL_SINK1
SDA_SINK1
5V_PWR1
5V_PWR3
5V_SINK1
HPD_SINK1
ControlLogic
GPIO0(SA1)
GPIO1(SB1)
GPIO5(SA2)
GPIO6(SB2)
HIGH=source1
LOW=source2
TMDSDATA 5
TMDSDATA 4
TMDSDATA 3
TMDSDATA 2
TMDSDATA 1
TMDSDATA 0
TMDSCLOCK
TMDSDATA 5
TMDSDATA 4
TMDSDATA 3
TMDSDATA 2
TMDSDATA 1
TMDSDATA 0
TMDSCLOCK
TMDSDATA 5
TMDSDATA 4
TMDSDATA 3
TMDSDATA 2
TMDSDATA 1
TMDSDATA 0
TMDSCLOCK
UnusedOutput
SCL_SINK2
SDA_SINK2
HPD_SINK2
5V_SINK2
SCL2
SDA2
SCL4
SDA4
HPD2
HPD4
5V_PWR2
5V_PWR4
HPD1
HPD3
UnusedInput
Tosource1
Tosource2
Fromsource2
Fromsource1
From/Tosource
2
From/Tosource
1
FromSINK
ToSINK
From/ToSINK
Fromsource1
Fromsource2
ToSINK
Layout Considerations
I
2C Function Description
SLLS757A – AUGUST 2006 – REVISED MARCH 2007
Figure 32. Dual-Link 2-to-1 DVI/HDMI Switch Configuration
In a dual link application, the unused TMDS input should be configured as follows: the complementary input pin
is grounded through a 1-k
resistor, and the other pin left open.
The high-speed TMDS inputs are the most critical paths for the TMDS442. There are several considerations to
minimize discontinuities on these transmission lines between the connectors and the device:
The TMDS differential inputs should be layout in the shortest stubs from connectors directly
Maintain 100- differential impedance into and out of the TMDS442
Keep an uninterrupted ground plane beneath the high-speed I/Os
Keep the ground-path vias to the device as close as possible to allow the shortest return current path
The SCL/SDA and SCL_SINK/SDA_SINK pins are 5-V tolerant when the device is powered off and high
impedance under low supply voltage, 1.5 V or below. If the device is powered up and the I2C circuits are
enabled, and EN = high, the driver T (see Figure 33) is turned on or off depending up on the corresponding R
side voltage level.
When the R side is pulled low below 1.5 V, the corresponding T side driver turns on and pulls the T side down to
a low level output voltage, VOL. The value of VOL depends on the input to the OVS pin. When OVS is left floating
32
Copyright 2006–2007, Texas Instruments Incorporated
Product Folder Link(s): TMDS442
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TMDS442PNPG4 功能描述:多路器開關(guān) IC 4-to-2 DVI/HDMI Sw RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
TMDS442PNPR 功能描述:視頻開關(guān) IC 4-to-2 DVI/HDMI Sw Pwr I/O Exp RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時(shí)間: 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel
TMDS442PNPRG4 功能描述:視頻開關(guān) IC 4-to-2 DVI/HDMI Sw Pwr I/O Exp RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時(shí)間: 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel
TMDS461 制造商:TI 制造商全稱:Texas Instruments 功能描述:1080p a?? Deep Color 4-to-1 HDMI/DVI Switch with Adaptive Equalization
TMDS461PZT 功能描述:視頻開關(guān) IC 4 to 1 HDMI Switch RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時(shí)間: 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel
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