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參數資料
| 型號： | TMDS250PAGR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封裝： | GREEN, PLASTIC, TQFP-64 |
| 文件頁數： | 8/27頁 |
| 文件大小： | 709K |
| 代理商： | TMDS250PAGR |
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f-Frequency-MHz
Loss-dB
spec
10mcable
EQ=High
TMDS Input Fail-Safe
VCC
RINT
TMDS
Receiver
TMDS
Driver
RT
Y
Z
A
B
AVCC
TMDS Outputs
SLLS866 – AUGUST 2007
Figure 15. Frequency Response Compensation Curve at EQ = H
Internal termination circuitry which can be switched on or off, provides 50-
resistance to each differential input
pin when a port is selected. External terminations are not required. When the termination is switched on, current
will flow to the TMDS driver. When a port is not selected, the termination is open. This stops supply current
flowing from the input pins of the unselected ports. This switchable termination provides the connected HDMI
source another method of determining the sink port status, and whether it is selected or not selected, without
referring to the HPD pin status.
The TMDS input does not incorporate a fail-safe circuit. To implement fail-safe, the input can be externally biased
to prevent output oscillation. One pin can be pulled high to VCC with the other grounded through a 1-k resistor
as shown in Figure 16.
Figure 16. TMDS Input Fail-Safe Recommendation
A 10% precision resistor, 4.02-k
, is recommended to control the output swing to the HDMI compliant 400 mV to
600 mV range (500 mV typical). The TMDS outputs are high impedance under standby mode operation, S1 = H
and S2 = L.
16
Copyright 2007, Texas Instruments Incorporated
Product Folder Link(s): TMDS250
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TMDS250PAGRG4 | 功能描述:視頻開關 IC 2-to-1 HDMI Switch RoHS:否 制造商:Texas Instruments 開關數量: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 |
| TMDS251 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2.5 Gbps 2-TO-1 DVI/HDMI SWITCH |
| TMDS251PAGR | 功能描述:視頻開關 IC 2-to-1 HDMI Switch RoHS:否 制造商:Texas Instruments 開關數量: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 |
| TMDS251PAGRG4 | 功能描述:視頻開關 IC 2-to-1 HDMI Switch RoHS:否 制造商:Texas Instruments 開關數量: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 |
| TMDS261 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1080p - Deep Color 2-to-1 HDMI/DVI Switch With Adaptive Equalization |
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