LR38581

5

PIN NO. SYMBOL

I/O

POLARITY

PIN NAME

DESCRIPTION

35

ICU3

ADCK phase control

input 1

An input pin to select the phase of ADCK.

34

HP

IC3

Horizontal reference

pulse input

An input pin for reference of horizontal pulse.

Connect to HD pin of DSP IC.

37

ICD5

Test pin 3

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

–

Phase

60˚ delay

L

H or open

0˚

L

L

H or open

H or open

240˚ delay

L

H or open

180˚ delay

–

ADCK phase control

input 2

ICU3

36

–

–

An input pin to select TV standards.

L level

: NTSC mode

H level or open

: PAL mode

TV mode selection

input

ICU5

TVMD

40

–

A grounding pin.

Ground

–

GND

43

–

An input pin to select the polarity of OBCP (pin 1),

CLP (pin 2), FS (pin 4), FCDS (pin 5) and RS (pin 6).

Polarity selection

input

ICU5

PLCH

39

–

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

Test pin 4

ICD5

38

41

FR

O4MA53

Reset pulse output

A pulse to reset the charge of output circuit.

The output phase of FR is selected by serial data.

42

O4MA52

Horizontal transfer

pulse output 1B

A pulse to drive horizontal CCD shift register.

45

O4MA53

Horizontal transfer

pulse output 1

A pulse to drive horizontal CCD shift register.

44

–

Power supply

Supply of +5 V power.

–

A pulse to drive horizontal CCD shift register.

Horizontal transfer

pulse output 2B

O4MA52

47

A pulse to drive horizontal CCD shift register.

Horizontal transfer

pulse output 2

O4MA53

46

48

GND

Ground

A grounding pin.

––

IC3

: Input pin (CMOS level)

ICU3

: Input pin (CMOS level with pull-up resistor)

ICSU3

: Input pin (CMOS schmitt-trigger level with pull-up

resistor)

ICU5

: Input pin (CMOS level with pull-up resistor)

ICD5

: Input pin (CMOS level with pull-up resistor)

O4MA3

OSCI3

: Input pin for oscillation

OSCO3

: Output pin for oscillation

An input pin for reference of vertical pulse.

Connect to VD pin of DSP IC.

Vertical reference

pulse input

IC3

VD

33