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LSIs for Video Camera
MN673273
Signal-Processing LSI for Multimedia Camera
I Overview
The MN673273 is a signal processing LSI for digital cameras inputting to computer. In addition to the basic functions of luminance signal and chrominance signal processing, the MN673273 integrates microcontroller functions (ALC, AWB, and AGC), SSG, and CG on a single chip.
I Features
* Input: Analog signal (A/D converter input) * Outputs: Digital outputs 8-bit Y signal 8-bit C signal Analog outputs Y signal C signal * Operating supply voltage: 3.3 V 0.3 V * Operating clock frequency: 9.5 to 20 MHz * Main functions -- 10-bit A/D converter -- Two-channel 8-bit D/A converter -- Analog Y and C outputs -- Digital Y and C outputs -- ALC (supports both electronic and mechanical iris), AWB, AGC. Can be used with either a hardware control system or a microcontroller based control system. -- 50 Hz fluorescent lamp flicker correction -- Supports analog AGC (AN2108) -- On-chip CG and SSG -- Supports both 510 and 360 horizontal lines (However, 360 horizontal line output is only provided for the digital outputs.) -- Supports pseudo-VGA (digital rate conversion) -- Supports both NTSC and PAL
I Applications
* PC cameras, multimedia cameras
1
2
Y LPF
Flicker correction Gamma correction
MN673273
I Block Diagram
VIN Y LPF
Color suppression calculation
10 bit A/D Horizontal and vertical aperture processing High-brightness data detection
AGC
8 bit D/A
YOUT COUT
1H DLY
YOUTD (7 : 0)
Color difference matrix Flicker correction
Low-pass filter line switching
White balance gain control Full-screen average white balance data calculation (high and low brightness sections are excluded.) White balance gain calculation Flicker gain calculation
Encoder high-brightness area color suppression
Digital rate conversion
COUTD (7 : 0) UVSEL
Microcontroller interface
Center-weighted screen averaging brightness data calculation
LSIs for Video CameraI
CG/SSG circuit ALC control calculation
LSIs for Video Camera
I Pin Arrangement
MN673273
60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
YOUTD7 YOUTD6 YOUTD5 YOUTD4 YOUTD3 YOUTD2 YOUTD1 YOUTD0 VSS3 VDD3 BLCSW CSYNC COUTD7 COUTD6 COUTD5 COUTD4 COUTD3 COUTD2 COUTD1 COUTD0
UVSEL RESET YCLEVEL MINTEST TESTSCAN VREF IREF COMP COUT DAAVDD2 DAAVSS2 YOUT VRT VREFHM VREFM ADVDD1 ADVSS1 VREFML VRB VIN
61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80
FCK43 FCKO CH1 CH2 SUB V1 V2 V3 V4 VSS2 VDD2 OSCO OSCI DS1 DS2 VSSTG VDDTG R H1 H2
TEST1 TEST2 TEST3 TEST4 TEST5 HSSFIX CLKRST VDD1 VSS1 MS CS DI DO SCLK LOAD ADTOPADJ CPOB VD HD HCLR (TOP VIEW)
3
MN673273
I Pin Descriptions
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Pin Name TEST1 TEST2 TEST3 TEST4 TEST5 HSSFIX CLKRST VDD1 VSS1 MS CS DI DO SCLK LOAD ADTOPADJ CPOB VD HD HCLR H2 HI R VDDTG VSSTG DS2 DS1 OSCI OSCO VDD2 VSS2 V4 V3 V2 V1 SUB I/O I I I I I I I VDD VSS I I/O I/O I I/O O O O O O O O O O VDD VSS O O I O VDD VSS O O O O O FCK FCK FCK FCK FCK FCK FCK FCK FCK FCK, 4/3FCK FCK, 4/3FCK FCK, 4/3FCK FCK FCK CLOCK
LSIs for Video CameraI
Function Test pin (Must be hold low during normal operation.) Test pin (Must be hold low during normal operation.) Test pin (Must be hold low during normal operation.) Test pin (Must be hold low during normal operation.) Test pin (Must be hold low during normal operation.) Shutter lock (1: On, 0: Off)/Flicker correction (1: Off, 0: On)/ External synchronization input Clock reset Digital system power supply (3.3 V) Digital system ground Master/slave switching EPROM chip select Serial data input and output Serial data input Serial clock input and output Load pulse for AN2108/Analog AGC control signal (PWM) A/D converter input clamp voltage adjustment (PWM) A/D converter input clamp pulse or D/A converter output clamp pulse (CP2) Vertical drive signal/External synchronization VP Horizontal drive signal Horizontal reference signal/External synchronization output H2 transfer pulse H1 transfer pulse R pulse H power supply (3.3 V) H ground CDS pulse 2 CDS pulse 1 Oscillator input (2FCK) Oscillator output (2FCK) Digital system power supply (3.3 V) Digital system ground V4 charge pulse V3 charge pulse V2 charge pulse V1 charge pulse Vertical exclusion pulse
4
LSIs for Video Camera
I Pin Descriptions (continued)
Pin No. 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 Pin Name CH2 CH1 FCKO FCK43 COUTD0 COUTD1 COUTD2 COUTD3 COUTD4 COUTD5 COUTD6 COUTD7 CSYNC BLCSW VDD3 VSS3 YOUTD0 YOUTD1 YOUTD2 YOUTD3 YOUTD4 YOUTD5 YOUTD6 YOUTD7 UVSEL RESET YCLEVEL MINTEST TESTSCAN VREF IREF COMP COUT DAAVDD2 DAAVSS2 YOUT VRT I/O O O O O O O O O O O O O O I VDD VSS O O O O O O O O O I O I I I I I O AVDD AVSS O I FCK, 4/3FCK FCK, 4/3FCK FCK, 4/3FCK FCK, 4/3FCK FCK, 4/3FCK FCK, 4/3FCK FCK, 4/3FCK FCK, 4/3FCK FCK, 4/3FCK FCK FCK FCK, 4/3FCK FCK, 4/3FCK FCK, 4/3FCK FCK, 4/3FCK FCK, 4/3FCK FCK, 4/3FCK FCK, 4/3FCK FCK, 4/3FCK FCK, 4/3FCK FCK, 4/3FCK CLOCK FCK FCK V3 charge pulse V1 charge pulse FCK output 4/3 FCK output Digital chrominance-signal output (LSB) Digital chrominance-signal output Digital chrominance-signal output Digital chrominance-signal output Digital chrominance-signal output Digital chrominance-signal output Digital chrominance-signal output Digital chrominance-signal output (MSB) Composite sync output Function
MN673273
Backlighting correction switching (1: On, 0: Off) Digital system power supply (3.3 V) Digital system ground Digital luminance-signal output (LSB) Digital luminance-signal output Digital luminance-signal output Digital luminance-signal output Digital luminance-signal output Digital luminance-signal output Digital luminance-signal output Digital luminance-signal output (MSB) Color difference discrimination signal (High: R-Y, Low: B-Y) Power on reset D/A converter reference adjustment voltage Test pin (Must be hold low during normal operation.) Test pin (Must be hold low during normal operation.) D/A converter reference voltage input D/A converter bias current setting D/A converter phase compensation capacitor connection Clock signal output D/A converter power supply D/A converter ground Luminance signal output A/D converter high-level reference voltage input 5
MN673273
I Pin Descriptions (continued)
Pin No. 74 75 76 77 78 79 80 Pin Name VREFHM VREFM ADVDD1 ADVSS1 VREFML VRB VIN I/O I I AVDD AVSS I I I CLOCK
LSIs for Video CameraI
Function A/D converter intermediate reference voltage A/D converter intermediate reference voltage A/D converter power supply A/D converter ground A/D converter intermediate reference voltage A/D converter low-level reference voltage input A/D converter input signal
I Shared Function Pins
Pin No. 6 Pin Name HSSFIX I/O I Function HSSFIX: Electronic shutter speed lock (1: On, 0: Off) FLICOFF: Flicker correction (1: Off, 0: On) VRSTI: External synchronization vertical reset pulse 15 LOAD O LOAD: AN2108 load pulse ANAGC: Analog AGC control signal 17 CPOB O CPOB: A/D converter input signal clamp pulse Switch settings WE34 upper (1) = 0 and WE04 upper (2) =0 WE34 upper (1) = 0 and WE04 upper (2) =1 WE34 upper (1) = 1 WE3D upper (3) = 0 WE3D upper (3) = 1 WE3C upper (3) = 0 WE34 upper (1) = 0 and WE11 upper (6) =0 WE34 upper (1) = 0 and WE11 upper (6) =0 WE34 upper (1) = 0 WE34 upper (1) = 0 and WE34 upper (6) =0
CP2: D/A converter output clamp pulse WE3C upper (3) = 1 18 VD O VD: Vertical drive signal VP: External synchronization VP signal 20 HCLR O HCLR: Horizontal reference signal VRSTM: External synchronization vertical reset mask signal
6
LSIs for Video Camera
I Electrical Characteristics
1. Absoluste Maximum Ratings Parameter Supply voltage(digital) Supply voltage(analog) Input voltage Output voltage Average output voltages 1 mA cell 2 mA cell 4 mA cell 16 mA cell Operating temperature Storage temperature Topr Tstg Symbol VDD AVDD VI VO IO Rating - 0.3 to +4.6 - 0.3 to +4.6 - 0.3 to VDD+0.3 - 0.3 to VDD+0.3 3 6 12 48 -20 to +85 -55 to +150
MN673273
Unit V V V V mA
C C
Notes: 1. The absolute maximum ratings are limiting values under which the chip will not be destroyed. Operation is not guaranteed within these ranges. 2. The VDD1, VDD2, VDD3, VDDTG, ADVDD1, and DAAVDD2 pins must always be held at the same voltage. The VSS1, VSS2, VSS3, VSSTG, ADVSS1, and DAAVSS2 pins must always be held at the same voltage.
2. Operating Conditions VSS = AVSS = 0 V Parameter Supply voltage(digital) Supply voltage(analog) Supply voltage(R, H1, H2) Operating frequency Symbol VDD AVDD VDDH fCLK Conditions Digital system power supply A/D and D/A converter power supply Drive power supply for the R, H1, and H2 output pins duty 50 % 9.5 20.0 MHz Min 3.0 3.0 3.0 Typ 3.3 3.3 3.3 Max 3.6 3.6 3.6 Unit V V V
3. DC Characteristics VDDH = 3.0 V to 3.6 V, VDD = AVDD = 3.0 V to 3.6 V, VSS = AVSS = 0 V, Ta = -20 C to +85 C Parameter Operating supply current Symbol IDD Conditions VDD = AVDD = VDDH = 3.6 V, fCLK = 20.0 MHz, Ta = 25 C Min Typ 100 Max 180 Unit mA
Input pins1-1 TEST5, CLKRST, BLCSW, RESET, MINTEST, TESTSCAN Input voltage High-level Low-level Input leakage current VIH VIL ILI VI = VDD or VSS VDD x 0.8 0 -5 VDD x 0.8 0 VI = VSS VI = VDD -10 10 30 VDD VDD x 0.2 5 A V
Input pins1-2 Pull-down Input pins TEST1 to TEST4, HSSFIX, MS, DO Input voltage High-level Low-level Input leakage current Pull-down resistor VIH VIL ILIPD RPD VDD VDD x 0.2 10 90 A k V
7
MN673273
I Electrical Characteristics (continued)
3. DC Characteristics (continued)
LSIs for Video CameraI
at VDDH = 3.0 V to 3.6 V, VDD = AVDD = 3.0 V to 3.6 V, VSS = AVSS = 0 V, Ta = -20 C to +85 C Parameter Symbol Conditions Min Typ Max Unit
Output pins1-1 LOAD, ADTOPADJ, CPOB, HCLR, YOUTD0 to YOUTD7, UVSEL, YCLEVEL Output voltage High-level Low-level VOH VOL IO = -1 mA IO = 1 mA IO = -2 mA IO = 2 mA IO = -4 mA IO = 4 mA IO = -16 mA IO = 16 mA VDD - 0.6 VDD - 0.6 VDD - 0.6 VDD - 0.6 VDD x 0.8 0 IO = -4 mA IO = 4 mA VO = VDD or VSS VDD = 3.3 V, Xtal VDD = 3.3 V VI(XI) = VDD or VSS VDD = 3.3 V VI = VSS, VO = VSS VDD = 3.3 V VI = VDD, VO = VDD VDD - 0.6 -5 940 -4.6 4.8 0.4 V
Output pins1-2 V4 to V1, SUB, CH2, CH1, COUTD0 to COUTD7, CSYNC Output voltage High-level Low-level VOH VOL 0.4 V
Output pins1-3 VD, HD, DS2, DS1, FCKO, FCK43 Output voltage High-level Low-level Output pins1-4 H2, H1, R Output voltage High-level Low-level I/O pins 1: CS, DI, and SCLK Input/Output voltage Output voltage High-level Low-level High-level Low-level Output leakage current Oscillator pins 1: OSCI and OSCO Standard oscillator frequency Internal feedback resistors Output voltage High-level Low-level fOSC RFB IOH IOL 9.5 313 -11.5 1.92 20.0 2820 -1.84 12 MHz k mA VIH VIL VOH VOL ILO VDD VDD x 0.2 0.4 5 A V V VOH VOL 0.4 V VOH VOL 0.4 V
8
LSIs for Video Camera
I Electrical Characteristics (continued)
4. AC Characteristics Parameter Input pins2-1 OSCI Clock waveform Period Clock duty tcyc dclk See figure 1 See figure 1 dclk = thi/tcyc 50.0 48 50 Symbol Conditions Min Typ
MN673273
Max
Unit
105.3 52
ns %
Input pins2-2 HSSFIX, MS, DO, BLCSW Input timing Setup Hold tsu thd See figure 1 See figure 1 10 15 ns
Output pins2 LOAD, ADTOPADJ, CPOB, VD, HD, HCLR, H2, H1, R, DS2, DS1, V4 to V1, SUB, CH2, CH1, FCKO, FCK43, COUTD0 to COUTD7, CSYNC, YOUTD0 to YOUTD7, UVSEL, and YCLEVEL Output timing Delay tod Load: 60 pF, output level: 50% See figure 1 45 ns
5. A/D converter at VDD = AVDD = 3.3 V, VSS = AVSS = 0 V, Ta = +25 C Parameter Symbol Conditions Min Typ Max Unit
Recommended A/D converter operating conditions VIN, VRT, VRB Analog input voltage Analog input pin capacitance High-level reference voltage Low-level reference voltage Reference resistance (VRB-VRT) A/D Converter Characteristics Resolution Nonlinearity error Differential nonlinearity error Analog input dynamic range RES EL ED DR fCLK = 9.5 MHz, VRT = 2.5 V VRB = 0.5 V, CVREFM = CVREFHM = CVREFML = 10 F 5.0 2.0 10 7.5 6.5 VRT- V[P-P] VRB Bit LSB VAIN CAI VRT VRB RREF VIN VIN VRT VRB VRB 15 2.5 0.5 440 VRT V pF V V
9
MN673273
I Electrical Characteristics (continued)
6. Converter at VDD = AVDD = 3.3 V, VSS = AVSS = 0 V, Ta = +25 C Parameter Symbol Conditions
LSIs for Video CameraI
Min
Typ
Max
Unit
Recommended D/A converter operating conditions VREF, IREF, COMP, YOUT, COUT Reference voltage External phase compensation capacitor External output resistor External bias current setting resistor D/A Converter Characteristics Resolution Nonlinearity error Differential nonlinearity error Full-scale voltage Zero-scale voltage RES EL ED VOFS VOZS fCLK = 20.0 MHz, VDD = 3.3 V RL = 200 , RIREF = 2.2 k, VREF = 1.38 V, CCOMP = 1.0 F 1.0 0 8 2.0 2.0 V V Bit LSB VREF CCOMP RL RIREF Inserted between the COMP pin and AVDD Inserted between AVSS and the YOUT and COUT pins, respectively Inserted between the IREF pin and AVSS 1.38 1.0 200 2.2 V F k
tcyc thi Clock CLK Vclk/2 Vclk
tsu Input
thd VDD /2
tod Output VDD /2
Figure 1. Input and Output Timing
10
I Timing Charts
* Input and Output Timing
HD 6T 60T
LSIs for Video Camera
-17T 43T
HCLR DDDD
OB OB 0 1
CCD output* 171819 42 43 59 61 63 65 67 69 44 60 62 64 66 68 70 71
CG YM CG YM CG 234
-16 -8 -6 -4 -2 -17 -7 -5 -3 -1 0 1 2 3 4 5 6 7
72
127
CPOB -1T 127T
Y0 Y1 Y2 Y3 Y4
-7T
YOUTD
127T
R-Y B-Y R-Y B-Y 0022
COUTD
UVSEL Note) *: This signal is not output from the LSI MN673273.
MN673273
11
MN673273
I Package Dimensions (Units: mm)
* QFH080-P-1212
LSIs for Video CameraI
14.00.2 12.00.2 60 41 40
(1.25) 12.00.2
61
80 1
0.5
21 20 0.20.1
14.00.2
1.00.2
2.80.2 2.90.3
0.10.1
5 0.15 -0.0
+0.10
0.1
Seating plane
0 to 10
0.50.2
12
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(1) An export permit needs to be obtained from the competent authorities of the Japanese Government if any of the products or technologies described in this material and controlled under the "Foreign Exchange and Foreign Trade Law" is to be exported or taken out of Japan. (2) The technical information described in this material is limited to showing representative characteristics and applied circuit examples of the products. It does not constitute the warranting of industrial property, the granting of relative rights, or the granting of any license. (3) The products described in this material are intended to be used for standard applications or general electronic equipment (such as office equipment, communications equipment, measuring instruments and household appliances). Consult our sales staff in advance for information on the following applications: * Special applications (such as for airplanes, aerospace, automobiles, traffic control equipment, combustion equipment, life support systems and safety devices) in which exceptional quality and reliability are required, or if the failure or malfunction of the products may directly jeopardize life or harm the human body. * Any applications other than the standard applications intended. (4) The products and product specifications described in this material are subject to change without notice for reasons of modification and/or improvement. At the final stage of your design, purchasing, or use of the products, therefore, ask for the most up-to-date Product Standards in advance to make sure that the latest specifications satisfy your requirements. (5) When designing your equipment, comply with the guaranteed values, in particular those of maximum rating, the range of operating power supply voltage and heat radiation characteristics. Otherwise, we will not be liable for any defect which may arise later in your equipment. Even when the products are used within the guaranteed values, redundant design is recommended, so that such equipment may not violate relevant laws or regulations because of the function of our products. (6) When using products for which dry packing is required, observe the conditions (including shelf life and after-unpacking standby time) agreed upon when specification sheets are individually exchanged. (7) No part of this material may be reprinted or reproduced by any means without written permission from our company.
Please read the following notes before using the datasheets
A. These materials are intended as a reference to assist customers with the selection of Panasonic semiconductor products best suited to their applications. Due to modification or other reasons, any information contained in this material, such as available product types, technical data, and so on, is subject to change without notice. Customers are advised to contact our semiconductor sales office and obtain the latest information before starting precise technical research and/or purchasing activities. B. Panasonic is endeavoring to continually improve the quality and reliability of these materials but there is always the possibility that further rectifications will be required in the future. Therefore, Panasonic will not assume any liability for any damages arising from any errors etc. that may appear in this material. C. These materials are solely intended for a customer's individual use. Therefore, without the prior written approval of Panasonic, any other use such as reproducing, selling, or distributing this material to a third party, via the Internet or in any other way, is prohibited.
2001 MAR

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