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參數(shù)資料
| 型號： | TMDS341A_07 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 3-TO-1 DVI/HDMI SWITCH |
| 中文描述： | 3比1個DVI / HDMI開關(guān) |
| 文件頁數(shù)： | 19/27頁 |
| 文件大?。?/td> | 1308K |
| 代理商： | TMDS341A_07 |
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APPLICATION INFORMATION
Supply Voltage
All V
CC
pins can be tied to a single 3.3-V power source. A 0.01-μF capacitor is connected from each V
CC
pin
directly to ground to filter supply noise.
TMDS Inputs
Standard TMDS terminations are integrated on all TMDS inputs. External terminations are not required. Each
input channel contains an 8-dB equalization circuit to compensate for cable losses. The voltage at the TMDS
input pins must be limited per the absolute maximum ratings. An unused input should not be connected to
ground as this would result in excessive current flow damaging the device.
TMDS Input Fail-Safe
TMDS input pins do not incorporate fail-safe circuits. An unused input channel can be externally biased to
prevent output oscillation. One pin can be left open with the other grounded through a 1-k
resistor as shown in
Figure 34
.
V
CC
R
INT
R
INT
TMDS
Receiver
TMDS
Driver
R
T
R
T
Y
Z
A
B
AV
CC
TMDS341A
TMDS Outputs
A 1% precision resister, 4.64-k
, connected from VSADJ to ground is recommended to allow the differential
output swing to comply with TMDS signal levels. The differential output driver provides a typical 10-mA current
sink capability, which provides a typical 500-mV voltage drop across a 50-
termination resistor.
TMDS341A
V
CC
GND
TMDS
Driver
AV
CC
Z
O
= R
T
Z
O
= R
T
R
T
R
T
TMDS
Receiver
TMDS341A
SLLS702B–MAY 2006–REVISED MARCH 2007
Figure 34. TMDS Input Fail-Safe Recommendation
Figure 35. TMDS Driver and Termination Circuit
As shown in
Figure 35
, if V
(TMDS341A supply) and AV
(sink termination supply) are powered, the TMDS
output signals are high impedance when OE is high. Normal operation is with both supplies active.
Also shown in
Figure 35
, if V
CC
is on and AV
CC
is off, the TMDS outputs source a typical 5-mA current through
each termination resistor to ground. The terminations consume a total of 10 mW of power independent of the
OE logical selection. When AV
CC
is powered on, normal operation (OE controls output impedance) is resumed.
19
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TMDS341APFC | 功能描述:視頻開關(guān) IC 3-TO-1 DVI/HDMI Sw RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關(guān)閉時間（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 |
| TMDS341APFCG4 | 功能描述:多路器開關(guān) IC 3-TO-1 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 開啟時間（最大值）: 關(guān)閉時間（最大值）: 傳播延遲時間: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 |
| TMDS341APFCR | 功能描述:多路器開關(guān) IC 3-TO-1 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 開啟時間（最大值）: 關(guān)閉時間（最大值）: 傳播延遲時間: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 |
| TMDS341APFCRG4 | 功能描述:視頻開關(guān) IC 3-TO-1 DVI/HDMI Sw RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關(guān)閉時間（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 |
| TMDS341PFC | 功能描述:多路器開關(guān) IC 3-TO1 DVI/HDMI SWITCH 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 開啟時間（最大值）: 關(guān)閉時間（最大值）: 傳播延遲時間: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 |
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