ML6430/ML6431

8

DEVICE

FUNCTIONAL DESCRIPTION

Video Formats,

Timing,

Clock

Input

Free Run

VGA

VCR

and Pulse

Rates

Crystal

Mode

Clock

Lock

Generation

NTSC

PAL

CCIR601

Square

4xFSC

3.58

4.43

Pixel

MHz

MHz

ML6430

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes. Limited

Yes. Limited to

Yes

transition

640x480

between free

pixel clock.

run modes

1 and 2.

(Figure 4)

ML6431

Yes

Yes*

Yes

Yes*

Yes

Yes

Yes

Yes. Faster

Yes. Works

Yes.

transition be-

up to 75MHz.

tween freerun

(Table 6)

modes 1and 2.

(Figure 4a)

* Readjusted the center frequency for PAL square pixel with NTSC crystal to achieve greater than +/-5% range. See Table 4

Table 1. Summary of Functional Differences between the ML6430 and ML6431.

DEVICE

MODE

REGISTER DIFFERENCES

PIN OUT DIFFERENCES

Register 7,

Register 7,

Pin 3

Pin 16

Bit 2

Bit 3

ML6430

Sleep Mode

0

0

SLEEP

AUDIOCLK

Pulse Generator Mode*

1

0

54MHz**

AUDIOCLK

Time Base Correction Mode

This function not available in the ML6430

ML6431

Sleep Mode

0

0

SLEEP

AUDIOCLK

Pulse Generator Mode*

1

0

54MHz**

AUDIOCLK

PHERROUT Mode*

X

1

Must be set HIGH

PHERROUT

Table 2. Summary of Register Differences between the ML6430 and ML6431.

*For these modes the SLEEP mode can only be enable/disabled via serial bus (Register 8).

**The 54MHz clock input (pin 3) can be any 4 x Clock up to 70MHz

DEVICE DIFFERENCES

Tables 1 and 2 summarize the differences between the

ML6430 and ML6431. The pinouts of the ML6430 and the

ML6431 are the same with the exception that the ML6431

has a few enhancements, (Center Frequency and Free Run

Mode, see Table 1) and added functionality (see Table 2).