LR38581 データシートの表示（PDF） - Sharp Electronics

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LR38581

Timing Generator IC for 270 k/320 k-pixel Color CCDs with Dual-power-supply Operation

Sharp Electronics 

LR38581

PIN NO. SYMBOL

33 VD

I/O POLARITY

PIN NAME

Vertical reference

IC3

pulse input

DESCRIPTION

An input pin for reference of vertical pulse.

Connect to VD pin of DSP IC.

34 HP

IC3

Horizontal reference An input pin for reference of horizontal pulse.

pulse input

Connect to HD pin of DSP IC.

35 SAD1

36 SAD2

ICU3

ICU3

ADCK phase control An input pin to select the phase of ADCK.

–

input 1

SAD1 L H or open

L

H or open

ADCK phase control

–

input 2

SAD2 L

L

H or open H or open

Phase 0˚ 60˚ delay 180˚ delay 240˚ delay

37 TST3

ICD5 – Test pin 3

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

38 TST4

39 PLCH

ICD5

ICU5

– Test pin 4

Polarity selection

–

input

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

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

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

40 TVMD

ICU5

An input pin to select TV standards.

TV mode selection

–

L level

: NTSC mode

input

H level or open : PAL mode

A pulse to reset the charge of output circuit.

41 FR

O4MA53

Reset pulse output Connect to ØR pin of CCD through the DC offset circuit.

The output phase of FR is selected by serial data.

42 FH1B O4MA52

Horizontal transfer

pulse output 1B

A pulse to drive horizontal CCD shift register.

Connect to ØH1B pin of CCD.

43 GND

–

– Ground

A grounding pin.

44 VDD5

–

– Power supply

Supply of +5 V power.

45 FH1

O4MA53

Horizontal transfer

pulse output 1

A pulse to drive horizontal CCD shift register.

Connect to ØH1 pin of CCD.

46 FH2

O4MA53

Horizontal transfer

pulse output 2

A pulse to drive horizontal CCD shift register.

Connect to ØH2 pin of CCD.

47 FH2B O4MA52

Horizontal transfer

pulse output 2B

A pulse to drive horizontal CCD shift register.

Connect to ØH2B pin of CCD.

48 GND

–

– Ground

A grounding pin.

IC3

ICU3

ICSU3

ICU5

ICD5

O4MA3

: Input pin (CMOS level)

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

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

resistor)

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

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

: Output pin (VDD = 3.3 V)

O4MA32 : Output pin (VDD = 3.3 V)

O4MA52 : Output pin (VDD = 5 V)

O4MA53 : Output pin (VDD = 5 V)

O12MHV : Output pin (VDD = 12.5 V)

OSCI3 : Input pin for oscillation

OSCO3 : Output pin for oscillation

5

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