DESCRIPTION

The LU850425 is a CMOS 8-bit single-chip microcomputer for CCD digital camera systems which include a CDS/AGC IC (IR3Y38M), a DSP IC (LR38266), a timing generator IC (LR38578), and this microcomputer IC.

FEATURES

• Auto exposure control (electronic exposure and mechanical exposure)

• Auto carrier balance tuning

• Auto white balance control

• In combination with an external controller

(personal computer), functions below can be

controlled (see Serial Control Interface in

FUNCTIONAL DESCRIPTION)

① Switchable :

AGC/ON/OFF

Auto white balance/AUTO/PRESET

Aperture enhancement/ON/OFF

Back light compensation/ON/OFF

GAMMA correction/ON/OFF

② Electronic shutter speed selection :

Auto E/E [1/60 (1/50) to 1/70 000 s] or fixed E/E

[1/60 (1/50), 1/100 (1/60), 1/250, 1/500, 1/1 000,

1/5 000 and 1/10 000 s]

( ) = PAL mode

• Switchable between NTSC and PAL modes

• Single +3.3 V power supply

• Package :

100-pin LQFP (LQFP100-P-1414) 0.5 mm pin-pitch