TFP403

TI PanelBus

 DIGITAL RECEIVER

SLDS125A – DECEMBER 2000 – REVISED OCTOBER 2002

13

POST OFFICE BOX 655303

TFP403 TMDS input levels and input impedance matching (continued)

_

+

Internal

Termination at 50

Ω

AVDD

DVI Compliant Cable

DATA

DATA

TI TFP403

Receiver

DVI

Transmitter

Current

Source

Figure 12. TMDS Differential Input and Transmitter Connection

1/2 VID

AVCC

AVCC –1/2 VID

+ 1/2 VID

–1/2 VID

VID

a ) Single-Ended Input Signal

b) Differential Input Signal

Figure 13. TMDS Inputs

TFP403 modes of operation

The TFP403 provides systems design flexibility and value by providing the system designer with configurable

options or modes of operation to support varying system architectures. The following table outlines the various

panel modes that can be supported along with appropriate external control pin settings.

PANEL

PIXEL RATE

ODCK LATCH

EDGE

ODCK

DFO

PIXS

OCK_INV

TFT or 16-bit DSTN

1 pix/clock

Falling

Free run

0

0

0

TFT or 16-bit DSTN

1 pix/clock

Rising

Free run

0

0

1

TFT

2 pix/clock

Falling

Free run

0

1

0

TFT

2 pix/clock

Rising

Free run

0

1

1

24-bit DSTN

1 pix/clock

Falling

Gated low

1

0

0

NONE

1 pix/clock

Rising

Gated low

1

0

1

24-bit DSTN

2 pix/clock

Falling

Gated low

1

1

0

24-bit DSTN

2 pix/clock

Rising

Gated low

1

1

1