TFP101, TFP101A

TI PanelBus DIGITAL RECEIVER

SLDS119C - MARCH 2000 − REVISED OCTOBER 2003

13

POST OFFICE BOX 655303

TFP101A incorporates HSYNC jitter immunity (continued

HSYNC Shift by

± 1 Clock

ODCK

HSYNC IN

DE

HSYNC OUT

Figure 16. HSYNC Regeneration Timing Diagram

TFP101/101A modes of operation

The TFP101/101A 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

TFP101/101A output driver configurations

The TFP101/101A provides flexibility by offering various output driver features that can be used to optimize

power consumption, ground-bounce and power-supply noise. The following sections outline the output driver

features and their effects.

Output driver power down (PDO = low), Pulling PDO low will place all the output drivers, except CTL1 and

SCDT, into a high-impedance state. The SCDT output which indicates link-disabled or link-inactive can be tied

directly to the PDO input to disable the output drivers when the link is inactive or when the cable is disconnected.

An internal pullup on the PDO pin will default the TFP101/101A to the normal nonpower down output drive mode

if left unconnected.

Drive Strength (ST = high for high drive strength, ST=low for low drive strength.) The TFP101/101A allows

for selectable output drive strength on the data, control and ODCK outputs. See the dc specifications table for

times the drive as the low output drive strength.