LR38630中文资料

DESCRIPTION

The LR38630 is a CMOS digital signal processor for color camera systems of 110 k-pixel CMOS image sensor with primary color mosaic filters. The camera system consists of CIF CMOS image sensor (LZ34C10) and DSP IC (LR38630) with 2 k-bit EEPROM. Depending on application, 1 M-bit SRAM can be added in order to get slower frame rate at video output.

FEATURES

?Designed for 110 k-pixel color CMOS image sensors with R, G, and B color mosaic filters ?Compatible with CIF standard

?External control interface input/output ?Variable GAMMA and KNEE response ?8-bit digital input

?Available for digital video 4 : 2 : 2 (U/Y/V/Y)output

?Built-in synchronous signal generation circuit to drive CMOS image sensor

?Built-in 2 k-bit EEPROM controller to set the camera adjustment data

?Built-in auto exposure control ?Built-in auto white balance control ?Built-in auto carrier balance control ?Built-in white blemish compensator

?Lower power consumption by dual clocking signal process technology

?Single +3.0 V power supply ?Package :

80-pin LQFP (LQFP080-P-1212) 0.5 mm pin-pitch

LR38630

Digital Signal Processor for CIF CMOS Image Cameras

In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.

IO4M:Input/output pin (4 mA output, CMOS level input) IO4MU:Input/output pin (4 mA output, CMOS level input with pull-up resistor)OBF4M:Output pin (4 mA output) IC:Input pin (CMOS level input)

RECOMMENDED OPERATING CONDITIONS

ELECTRICAL CHARACTERISTICS

(V DD = 3.0±0.3 V, T OPR = –20 to +70 ?C)

PARAMETER

SYMBOL Power supply voltage V DD Operating temperature T OPR Input clock frequency

f CK

–20

2.7MIN.UNIT V ?C MHz

TYP.MAX.3.0 3.3+25+70

9.0

Input "Low" voltage V IL

Input "High" voltage V IH Input "Low" current |I IL1||I IH1|Input "Low" current |I IL2|Input "High" current |I IH2|Output "High" voltage

V OH

PARAMETER

SYMBOL CONDITIONS

Input "High" current V OL Output "Low" voltage MIN.0.8V DD

0.8V DD

100

TYP.

MAX.1.0

1.00.2V DD 0.2V DD

2.0300V I = 0 V V IN = V DD V IN = 0 V I OH = –4 mA I OL = 4 mA V IN = V DD μA μA V V

V μA μA UNIT NOTE 214

3NOTES :

1.Applied to input (IC) and inputs/outputs (IO4M, IO4MU).

2.Applied to input (IC) and input/output (IO4M).

3.Applied to input/output (IO4MU).

Applied to output (OBF4M) and inputs/outputs (IO4M, IO4MU).

(APPENDIX)

Weighting area of exposure control

1block = 44 pixels in horizontal and 36 lines in vertical q (Bit 3, Bit 2) of address 0Ch = (0, 0)

w (Bit 3, Bit 2) of address 0Ch = (0, 1)

e (Bit 3, Bit 2) o

f address 0Ch = (1, 0)

r (Bit 3, Bit 2) of address 0Ch = (1, 1)

2/42/42/42/42/42/42/42/42/42/42/42/42/42/42/42/411111111111111111

1115/45/45/45/4115/45/45/45/411115/45/45/45/411115/45/45/45/41113/43/43/43/43/43/43/43/43/43/45/45/45/45/45/45/45/45/45/45/45/45/43/43/43/43/45/45/45/45/45/45/43/43/45/45/45/45/45/45/45/4

5/4

3/4

15/45/45/45/45/45/43/43/411111111

111111111111111111111111111111111111111111111111111111112/42/42/42/42/42/42/42/42/42/42/42/42/42/42/42/4111111115/4

5/4

5/45/45/45/45/45/45/45/45/45/45/45/45/45/45/45/45/45/45/45/45/45/45/45/4

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PACKAGES FOR CCD AND CMOS DEVICES

PACKAGE(Unit : mm)