ML6430 datasheet(4/33 Pages) MICRO-LINEAR

4 / 33 page

ML6430/ML6431

PIN DESCRIPTION (Continued)

NAME

FUNCTION

HRESET

Horizontal reset; active low for one

half pixel.

VBLANK

Vertical blanking, active low

HBLANK

Horizontal blanking, active low

CSYNC

Composite sync output. May be either

the raw output of sync slicer, or

regenerated signal from internal pulse

generators. If raw slicer output is

selected, then signals disappear when

input signal disappears. If regenerated

output is selected, then signal is

always present regardless of input

conditions. Preset modes produce

regenerated sync.

BCLAMP/BURST

This is a dual mode pin. User may

select either a back porch clamp pulse

or a burst gate pulse via the serial

control bus. Preset is BCLAMP pulse.

NAME

FUNCTION

SCLAMP

Sync clamp pulse occurs just after

leading edge of sync. Duration is

typically less than 50% of sync pulse

to avoid problems with equalizers in

the vertical interval, active high.

VCC D

Digital supply pin for digital PLL.

GND D

Digital ground pin for digital PLL.

This is a three-state pin: low means

serial bus is enabled, high or

unconnected (high Z) means presets

are active. Refer to Table 7.

This is a three state pin. Refer to

Table 7. If presets are disabled pin

is ignored.

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