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参数资料
| 型号： | TFP401APZPG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP100 |
| 封装： | 14 X 14 MM, 1 MM HEIGHT, 0.50 MM PITCH, GREEN, PLASTIC, HTQFP-100 |
| 文件页数： | 5/20页 |
| 文件大小： | 295K |
| 代理商： | TFP401APZPG4 |
TFP401, TFP401A
TI
PanelBus DIGITAL RECEIVER
SLDS120C - MARCH 2000 REVISED MAY 2011
13
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
TFP401/401A TMDS input levels and input impedance matching (continued)
_
+
Internal
Termination at 50 Ω
AVDD
DVI Compliant Cable
DATA
TI TFP401/401A
Receiver
DVI
Transmitter
Current
Source
Figure 14. TMDS Differential Input and Transmitter Connection
1/2 VIDIFF
AVCC
AVCC - 1/2 VIDIFF
+ 1/2 VIDIFF
- 1/2 VIDIFF
VIDIFF
a ) Single-Ended Input Signal
b) Differential Input Signal
Figure 15. TMDS Inputs
TFP401A incorporates HSYNC jitter immunity
Several DVI transmitters available in the market introduce jitter on the transmitted HSYNC and VSYNC signals
during the TMDS encryption process. The HSYNC signal can shift by one pixel position (one clock) from nominal
in either direction, resulting in up to two cycles of HSYNC shift. This jitter carries through to the DVI receiver,
and if the position of HSYNC shifts continuously, the receiver can lose track of the input timing and pixel noise
will occur on the display. For this reason, a DVI compliant receiver with HSYNC jitter immunity should be used
in all displays that could be connected to host PCs with transmitters that have this HSYNC jitter problem.
The TFP401A integrates HSYNC regeneration circuitry that provides a seamless interface to these
noncompliant transmitters. The position of the data enable (DE) signal is always fixed in relation to data,
irrespective of the location of HSYNC. The TFP401A receiver uses the DE and clock signals recreate stable
vertical and horizontal sync signals. The circuit filters the HSYNC output of the receiver, and HSYNC is shifted
to the nearest eighth bit boundary, producing a stable output with respect to data, as shown in Figure 16. This
will ensure accurate data synchronization at the input of the display timing controller.
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| TFP401PZP | 功能描述:显示接口集成电路 PanelBus DVI Receiver 165MHz RoHS:否 制造商:Texas Instruments 电源电流:125 mA 工作温度范围:- 40 C to + 105 C 封装 / 箱体:WQFN-60 封装:Reel |
| TFP401PZPG4 | 功能描述:显示接口集成电路 PanelBus DVI Rcvr RoHS:否 制造商:Texas Instruments 电源电流:125 mA 工作温度范围:- 40 C to + 105 C 封装 / 箱体:WQFN-60 封装:Reel |
| TFP403 | 制造商:TI 制造商全称:Texas Instruments 功能描述:TI PANEBUS DIGITAL RECEIVER |
| TFP403PZP | 功能描述:显示接口集成电路 PanelBus DVI Receiver RoHS:否 制造商:Texas Instruments 电源电流:125 mA 工作温度范围:- 40 C to + 105 C 封装 / 箱体:WQFN-60 封装:Reel |
| TFP403PZPG4 | 功能描述:显示接口集成电路 PanelBus DVI Rcvr RoHS:否 制造商:Texas Instruments 电源电流:125 mA 工作温度范围:- 40 C to + 105 C 封装 / 箱体:WQFN-60 封装:Reel |
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