LR38269 データシートの表示（PDF） - Sharp Electronics

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LR38269

Digital Signal Processor for Color CCD Cameras

Sharp Electronics 

LR38269

PIN NO. SYMBOL I/O POLARITY

DESCRIPTION

Video output mode setting.

32 MIR

IO4M

L : Normal

H : Mirror

In digital output mode, this pin is assigned to bit 2 of U/V signal.

Backlight compensation selection.

33 BLC

IO4M

L : OFF

H : ON

In digital output mode, this pin is assigned to bit 3 of U/V signal.

34 GNDDA

–

A grounding pin of built-in DA converter.

35 VDDDA

–

Supply of +3.3 V power of built-in DA converter.

36 VB

DAO

Bias voltage output of built-in DA converter, connected to GND through a

capacitor.

37 IREF

DAO

Bias current output of built-in DA converter, connected to GND through a resistor.

38 VREF

DAI

Bias voltage input of built-in DA converter, connected to +1.0 V power supply.

39 GNDDA

–

A grounding pin of built-in DA converter.

40 VIDEO DAO

Analog video signal output.

41 EEMDS IO4MU

Electronic exposure mode setting by EEMDS, EEMD1, EEMD2 and EEMD3.

42 EEMD1 IO4MU

See "Electronic Shutter Speed Setting" in AUTOMATIC CAMERA FUNCTION

43 EEMD2 IO4MU

CONTROL.

44 EEMD3 IO4MU

In digital output mode, 41 to 44 pins are assigned to bits 7 to 4 of U/V signals.

45 GND

–

A grounding pin

46 VDD

–

Supply of +3.3 V power.

47 DCK1

OBF4M

Clock output for digital signal output.

Output mode setting switches to CSYNC output.

ID pulse output for U/V output signal. In digital output, this pin outputs KEI-

PULSE.

48 DCK2

OBF4M

49 EXCKI

IC

50 Y0

51 Y1

52 Y2

53 Y3

54 GND

55 VDD

56 Y4

57 Y5

58 Y6

OBF4M

OBF4M

OBF4M

OBF4M

–

–

OBF4M

OBF4M

OBF4M

NOTE : KEI-PULSE

At power-on, it keeps low. Both 1/60 s (PAL 1/50 s) as shutter speed and AGC gain

more than data of address 78h sets it high.

Bit 3 of address 03h sets the function of this pin.

1 : Clock input of 13.5 MHz for digital output

0 : VRI input for analog output

Bit 0 (LSB) of digital luminance signal output.

Bit 1 of digital luminance signal output.

Bit 2 of digital luminance signal output.

Bit 3 of digital luminance signal output.

A grounding pin.

Supply of +3.3 V power.

Bit 4 of digital luminance signal output.

Bit 5 of digital luminance signal output.

Bit 6 of digital luminance signal output.

5

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