LZ95B25 datasheet(3/5 Pages) SHARP

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SYMBOL

I POLARITY I

PIN NAME

FUNCTION

_..

TVM

Icu

TV mode 1

These input pins to select TV standards.

—

TVM2

—

TV mode 2

An input pin for the signal 4 times the color

carrier frequency.

4FSI

input

At NTSC mode

: 14.31818 MHz

At PAL mode

: 17.734475 MHz

At SECAM mode : 17.625 MHz

4FS0

Osco

Clock output

The output is the inverse 4FSI (pin 4).

TSTI

Test pin 1

A test pin, Set open or to L level in the Normal

—

mode,

An output pin

color

The frequency of

02 M

output 1

the signals is 1/4 the 4FSI (pin 3). The signal is

reset by color frame pulse

(pin 13).

An output pin for color

When the phase

(pin 4) is 180 degree, the phase of

SC2

02 M

output 2

80 degree in NTSC

in PAL mode, the phase

of SC2 is

degree when LSW

is L level

and 270 degree when LSW is H level. The SC

same as the phase of SC I in SECAM mode.

TST2

ICD

Test pin 2

A test pin. Set open or to L level in the Normal

—

mode.

GND

—

Ground

A grounding pin.

Phase comparator output for input signals RPI (pin

14) and

(pin 16). When

is advanced, output

Phase comparator

is Low level. When

is delayed, output is High

—

output

level. When phases are equal, the terminal

ance is High.

comparator comparates rising

edge of

The CPCH input pin switches the polarity of RPI

(pin

When CPCH is L level,

comparator

CPCH

—

Polarity select input

comparates rising edge of

When CPCH is H

level, phase comparator comparates falling edge

TST3

–

Test pin 3

A test pin. Set open or to L level in the Normal

mode.

–

Color frame input

An input pin for color frame signal; Connect to

CFMO

301

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