TMC-73M / TMC-63M MINIATURE CCD COLOR CAMERA OPERATIONS MANUAL REV.
TABLE OF CONTENTS 1. OPERATION 1.1 1.2 ........................................................................................................................ Outline .............................................................................................. Special Characteristics of a CCD ....................................................... 2. COMPREHENSIVE SPECIFICATIONS 3 3 3 ................................................................................. 4 3. THEORY OF OPERATION ........
SECTION 1: OPERATION 1.1 OUTLINE Patterned noise on the picture at high temperatures The TMC-73M (NTSC model) / TMC-63M (PAL model) is a super-miniature color video camera which uses a 1/3" high resolution solid state image sensor the Charge Coupled Device (CCD). The CCD camera produces less geometrical distortion and has higher resistance to vibration and shock when compared with a camera using a pickup tube. These features make the camera suitable for both industrial and CCTV surveillance applications.
SECTION 2: COMPREHENSIVE SPECIFICATIONS Model TMC-73M (NTSC) Imager Pixel Cell size Color filter Scanning 1/3" interline transfer CCD (4.8 x 3.6 mm) 768(H) x 494(V) 752(H) x 582(V) 6.35µm(H) x 7.4µm(V) 6.5µm(H) x 6.25µm(V) Cy, Ye, Mg, G complementary color filter 2:1 interlaced, field mode scanning 525 lines, 59.94 Hz 625 lines, 50 Hz Internal sync only fH = 15.734 KHz fH = 15.625 KHz fV = 59.94 Hz fV = 50.00 Hz 460(H) x 400(V) TV lines 450(H) x 450(V) TV lines 50 dB (AGC off ) 2 Lux F = 1.
3.2 MECHANISM OF CCD ELECTRICAL CHARGE TRANSMISSION The TMC-73M uses a 4-phase drive method CCD. For simplicity, a 2-phase drive method CCD is explained below. ø2 ø1 N- Figure 1 shows an example of the changes which can occur in potential wells in successive time intervals. At t1, the electrode voltages are fH1>fH2, so the potential wells are deeper toward the electrode at the higher voltage fH1. Electrical charge accumulates in these deep wells.
3.3 THE INTERLINE-TRANSFER ORGANIZATION OF THE CCD IMAGE SENSORS The TMC-73M CCD video camera module adopts an interline-transfer organization in which the precisely aligned photosensor and vertical transmission section are arrayed interlinearly. Optional output Each pin has to be designated for various options such as Y/C output, integration control, etc. The customer will be required to assign option numbers. A horizontal shift register links up with the vertical transmission section.
12P Series cables available: 3.4.4 AUTO SHUTTER AND AUTO IRIS OUTPUT The TMC-73M has a built-in autoshutter control which works as electronic iris so that standard fixed or manual iris lens can be used. 12P-02 2 meters 12P-05 5 meters 12P-10 10 meters 12P-15 15 meters 12P-25 25 meters 12P-X Custom length 12P-02 8-conductor cable for RGB 12P-02MF RGB separator cable (for use with CCA-7 Signal Separator only) The TMC-73M has auto iris output pads located on the PWB1.
SECTION 4 : ALIGNMENT AND ADJUSTMENT 4.1 EQUIPMENT 1. Light source for test chart. Pattern Box PTB-100 (90-130V) PTB-220 (190-240V) 2. For video level and gamma adjustment. Grayscale Chart White Window Chart 3. For color adjustment. (Use color bar chart) YL G CY W MG R B Color Bar Chart R 4. For signal adjustment. Vectorscope Waveform monitor Oscilloscope 10 70 0 % % MG YL B 5.
4.2 PREPARATION W301, W302 W303 4.2.1 BACK FOCUS ADJUSTMENT (ONLY FOR OPTIONAL REQUIREMENT) PWB4 VR401 VR402 VR403 VR404 VR405 Subject: Resolution chart 1. Mount the manual lens (i.e. Cosmicar 25mm, F=1.4). MGC AGC MAX AGC Vsub IRIS level W401 W402 2. Open the lens iris completely and set lens focal length to minimum for the lens used (e.g. 2 ft.). Set to 3200°K Open (AGC on) = 2.5 V = 3.0 V = 2.0 V See Vsub voltage = 2.0 V Keep open. Use MGC/AGC selection NTSC... Open, PAL...
R gain, B gain Confirm that the white spot on Vector scope is in the center after adjusting white balance. 4.3.7 AGC Select MGC/AGC to AGC side (open). Adjust lens to see if AGC is functioning. Observe the AGC threshold level and adjust AGC potentiometer if necessary. C1 gain Confirm that each color dot on the Vector scope combines into one spot. 4.3.8 SHUTTER CONTROL AND INTEGRATION CONTROL 4.3.4 Y LEVEL, SETUP LEVEL Use Waveform monitor.
SECTION 6: IMAGER COLOR FILTERS External Digital Control The TMC-73M has built-in digital communication and D/A converter which can take serial data input and provide various function controls. The standard functions are; Manual gain control Iris level control for galvanometric iris lens Chroma level adjustment R-Y hue, B-Y hue control 12 bit of serial data controls 8 bit of data and 4 bit of address data. The D/A output is controlled as increment of 5/256 V ( = 0.02V) to maximum 5.0 V.
SECTION 7: TIMING CHART FOR TMC-73M/TMC-63M HD 6.7µSec 818 768 CCE photo sensors allocation Optical black period H register stop period 69.8nSec Image sensing period Dummy H register Optical black period CCD output signal Effective picture period 154 H BLK 10.7µSec Composite video output 22 1.54µSec 68 H SYNC 4.75µSec 64 4.47µSec 910 63.56µSec (1 horizontal line) 12 756 52.
SECTION 8: SERIAL DATA INPUT FORMAT LSB MSB D0 D1 D2 D3 D/A OUTPUT D4 D5 D6 D7 D8 D9 D10 D11 ADDRESS DATA 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (5/256) X 1 = 0.02 V (5/256) X 2 = 0.04 V (5/256) X 3 = 0.06 V 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 (5/256) x 255 = 4.98 v (5/256) x 256 = 5.
SECTION 9: MECHANICAL DRAWINGS 9.1 STANDARD CONFIGURATIONS 70mm AUTO AGC VIDEO 42.65 PULNiX 37mm 82mm 40mm 15 9.
NOTICE The material contained in this manual consists of information that is proprietary to PULNiX America, Inc., and may only be used by the purchasers of this product. PULNiX America, Inc. makes no warranty for the use of its products and assumes no responsibility for any errors which may appear or for damages resulting from the use of the information contained herein. PULNiX America, Inc. reserves the right to make changes without notice.
