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參數資料
| 型號： | TFP420PAP |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封裝： | 10 X 10 MM, 1.40 MM HEIGHT, 0.50 MM PITCH, POWER, THERMALLY ENHANCED, PLASTIC, TQFP-64 |
| 文件頁數： | 14/20頁 |
| 文件大?。?/td> | 253K |
| 代理商： | TFP420PAP |
TFP420
PanelBus
DIGITAL TRANSMITTER
SLDS123A – MARCH 2000 – REVISED JUNE 2000
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
digital video out (DVO) interface diagram
Graphics
Controller
TFP420
DVO I/F
Intel Chipset
DVI
Intel-Based Motherboard
Terminal Functions
TERMINAL
NAME
POWER
RAIL
NO.
I/O
DESCRIPTION
Digital Video Input Port
BLANK
DVDD
2
I
Blanking signal – BLANK is low during blanking interval and high during active video.
CLKIN[1:0]
DVDD
57, 56
I
TFP420 uses CLKIN [1:0] to clock in video data and timing control signals. When used as a
differential pair, CLKIN0 connects to the positive end and CLKIN1 connects to the negative end.
For single-ended clock input, the clock is connected to CLKIN0 and a reference voltage of
VDDQ/2 must be connected to CLKIN1.
The graphics controller should use internal DOT clock to generate CLKIN[1:0].
DATA[11:0]
DVDD
49–54,
59–64
I
DATA[11:0] is the pixel port
HSYNC
DVDD
4
I
Horizontal sync input
INT0
DVDD
9
I/O
Interrupt for hot plug support (output)
INT0 is an open drain signal and an assertion low interrupt request informing the graphics
controller of flat panel/TV/secondary monitor hot plug or hot unplug event. For normal
applications, a 10K pullup resistor must be connected between this terminal and DVCC.
INT1
DVDD
7
O
Interrupt for hot plug support
INT1 is an open drain signal and an assertion low interrupt request informing the graphics
controller of flat panel/secondary monitor hot plug or hot unplug event.
VREF
DVDDQ/2
3
A
Digital video input port voltage reference sets the switching threshold of all the signals listed in
digital video input port section of this table. VREF must be set to DVDDQ/2, where DVDDQ is
the swing of the signals. DVDDQ ranges from 1.1 V to 1.8 V.
VSYNC
DVDD
5
I
Vertical sync input
Reference Crystal
XTALI
PVDD
33
I
Terminal for reference crystal for the internal PLL. Leave unconnected if an external oscillator is
connected to XTAL0.
XTALO
PVDD
34
I
Terminal for reference crystal for the internal PLL or external reference oscillator input.
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