ML6431CH MICRO-LINEAR [Micro Linear Corporation], ML6431CH Datasheet - Page 8

• Manufacturer Part Number: ML6431CH
• Description: Genlocking Sync Generator with Digital Audio Clock for NTSC, PAL & VGA
• Manufacturer: MICRO-LINEAR [Micro Linear Corporation]

ML6430/ML6431
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
DEVICE
* Readjusted the center frequency for PAL square pixel with NTSC crystal to achieve greater than +/-5% range. See Table 4
DEVICE
ML6430
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
8
ML6430
ML6431
Video Formats,
NTSC
Yes
Yes
Generation
and Pulse
Timing,
Time Base Correction Mode
Pulse Generator Mode*
Pulse Generator Mode*
Yes*
PHERROUT Mode*
Yes
PAL
Table 1. Summary of Functional Differences between the ML6430 and ML6431.
Table 2. Summary of Register Differences between the ML6430 and ML6431.
Sleep Mode
Sleep Mode
MODE
CCIR601
Yes
Yes
FUNCTIONAL DESCRIPTION
Clock
Square
Rates
Yes*
Pixel
Yes
4xFSC
Yes
Yes
REGISTER DIFFERENCES
Register 7,
Bit 2
1
1
X
0
0
MHz
3.58
Yes
Yes
Crystal
Input
MHz
4.43
Yes
Yes
Register 7,
has a few enhancements, (Center Frequency and Free Run
Mode, see Table 1) and added functionality (see Table 2).
Bit 3
0
0
0
0
1
This function not available in the ML6430
Yes. Limited
transition
between free
run modes
1 and 2.
(Figure 4)
Yes. Faster
transition be-
tween freerun
modes 1and 2.
(Figure 4a)
Free Run
Mode
Must be set HIGH
54MHz**
54MHz**
SLEEP
SLEEP
Pin 3
PIN OUT DIFFERENCES
Yes. Limited to
Yes. Works
640x480
pixel clock.
up to 75MHz.
(Table 6)
Clock
VGA
AUDIOCLK
AUDIOCLK
AUDIOCLK
AUDIOCLK
PHERROUT
Pin 16
Yes
Yes.
Lock
VCR