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LU850425
LU850425
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.
8-bit Microcomputer for DSP Camera Systems
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) q Switchable : AGC/ON/OFF Auto white balance/AUTO/PRESET Aperture enhancement/ON/OFF Back light compensation/ON/OFF GAMMA correction/ON/OFF w 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
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.
1
LU850425
PIN CONNECTIONS
100-PIN LQFP
GND APT MIR SET WBSEL3 WBSEL2 WBSEL1 NC AEAWB LOCK ROMDATA ROMCLK TEST VDD GND OSCIN OSCOUT RESET GND GND GND GND GND GND SDATA SCK NC
TOP VIEW
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
GND CDS SEL TV MODE MODEL LENS SEL ADJIN AGC SEL ABLC IRIS GAMMA UIN UOUT READY GND SOUT SCK SLDI TIM SEL DATA0 DATA1 DATA2 DATA3 DATA4 DATA5 DATA6
76
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
75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
GND EESRB EEDATA EECLK GND MCO GND GND GND GND VD GND DAVR1 DAVR0 VREF OUT IRIS OUT GND IRISSEL3 IRISSEL2 IRISSEL1 VR B-Y R-Y GND GND
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
DATA7 ADD0 ADD1 ADD2 ADD3 ADD4 ADD5 ADD6 NC NC XCK2 XCK1 GND NC NC NC NC DACK DADT DASTB AGND SPD WB IWIND GND
(LQFP100-P-1414)
2
50
LU850425
PIN DESCRIPTION
PIN NO. SYMBOL 1 GND 2 3 CDS SEL TV MODE I/O I I I POLARITY A grounding pin. - - - DESCRIPTION
CDS/AGC IC selection. When using IR3Y38M, set to H level. TV standard/CCD selection. Pin 3 L L 270 k H L 320 k L H 410 k H H 470 k
4
MODEL
I
-
Pin 4 CCD
5
LENS SEL
I
-
Selection of output of pin 60 (pin 9 is input H level). H : Auto exposure lens L : Passive exposure lens Adjustment selection.
6
ADJIN
I
-
H
: Camera
L : Adjustment Selection of AGC function. 7 AGC SEL I - H L L H : ON : OFF : ABLC OFF : ABLC ON
Selection of auto backlight compensation. 8 ABLC I -
9
IRIS
I
-
Exposure mode selection. H : Mechanical exposure L : Electronic exposure Selection of gamma correction. H : = 1.0 L : = 0.45 The serial data is fed from adjustment tool or PC.
10
GAMMA
I
-
11
UIN
I
-
Without input data, keep at H level. For details, see "Serial Control Interface" in FUNCTIONAL DESCRIPTION. Outputs the serial data to adjustment tool or PC. For details, see "Serial Control Interface" in FUNCTIONAL DESCRIPTION. Outputs high level at AE/AWB lock mode. A grounding pin. Outputs the serial data to LR38266. Outputs the clock signal to LR38266. Outputs the strobe signal to LR38266. LR38266 latches the serial data from pin 15 of LU850425 by both SCK and SLDI. Timing IC selection. When using LR38578, set to H level.
12 13 14 15 16 17 18
UOUT READY GND SOUT SCK SLDI TIM SEL
O O I O O O I
-
- - - - -
3
LU850425
PIN NO. SYMBOL 19 DATA0 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 DATA1 DATA2 DATA3 DATA4 DATA5 DATA6 DATA7 ADD0 ADD1 ADD2 ADD3 ADD4 ADD5 ADD6 NC NC XCK2 XCK1 GND NC NC NC NC DACK DADT DASTB AGND SPD WB I/O I I I I I I I I O O O O O O O O O O I - O O O O O O O - I I POLARITY - DESCRIPTION
- - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Inputs image data from LR38266. DATA0 : LSB DATA7 : MSB
Outputs address data to LR38266. ADD0 : LSB ADD6 : MSB
No connection. No connection. Master clock output. Master clock input (5.5 MHz, TYP.). A grounding pin. No connection. No connection. No connection. No connection. Outputs the clock signal to MB88346BV. For details, see "TIMING CHART (D)". Outputs the serial data to MB88346BV. For details, see "TIMING CHART (D)". Outputs the strobe signal to MB88346BV. For details, see "TIMING CHART (D)". A grounding pin for D/A output circuit. Inputs DC level to select shutter speed. For details, see "ELECTRONIC SHUTTER SPEED CONTROL" in Preset Function Control. Inputs DC level to select white balance mode. For details, see "WHITE BALANCE" in Preset Function Control. Inputs DC level to select exposure window. For details, see "(3) Window Selection of Emphasis Range at Auto Exposure" in ELECTRONIC SHUTTER SPEED CONTROL. Not used. A grounding pin. Not used. A grounding pin. Not used. A grounding pin. Inputs DC level to vary R - Y gain by manual. The detail is shown at "WHITE BALANCE" in Preset Function Control.
49 50 51 52 53
IWIND GND GND GND R-Y
I I I I I
- - - -
4
LU850425
PIN NO. SYMBOL 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 B-Y VR IRISSEL1 IRISSEL2 IRISSEL3 GND IRIS OUT VREF OUT DAVR0 DAVR1 GND VD GND GND GND GND MCO GND EECLK EEDATA EESRB GND NC SCK SDATA GND GND GND GND GND GND RESET OSCOUT OSCIN GND I/O I I I I I I O O I I I I I I I I I I O O O - O O O - I I I I I I O I - POLARITY DESCRIPTION Inputs DC level to vary B - Y gain by manual. The detail is shown at "WHITE BALANCE" in Preset Function Control. Inputs the reference DC voltage for built-in A/D. Inputs the preset shutter speed mode 1. (See "ELECTRONIC SHUTTER SPEED CONTROL" in Preset Function Control.) Inputs the preset shutter speed mode 2. (See "ELECTRONIC SHUTTER SPEED CONTROL" in Preset Function Control.) Inputs the preset shutter speed mode 3. (See "ELECTRONIC SHUTTER SPEED CONTROL" in Preset Function Control.) A grounding pin. Outputs the analog signal to control auto mechanical exposure lens. Outputs the VREF DC to IR3Y38M. Inputs DC reference voltage for built-in D/A output of pin 60. Inputs DC reference voltage for built-in D/A output of pin 61. Not used. A grounding pin. Inputs VD signal from LR38266. A grounding pin. A grounding pin. A grounding pin. A grounding pin. Inputs MCO signal from LR38266. A grounding pin. Outputs the clock signal to LR38578. Outputs the data signal to LR38578. Outputs the strobe signal to LR38578. This signal makes LR38578 latch the data of EEDATA (pin 73) by EECLK (pin 72). A grounding pin. No connection. Outputs the clock signal to CDS/AGC (IR3Y38M). Outputs the serial data to CDS/AGC (IR3Y38M). A grounding pin. A grounding pin. A grounding pin. A grounding pin. A grounding pin. A grounding pin. Inputs the reset signal of LU850425. No connection. A grounding pin. A grounding pin.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
5
LU850425
PIN NO. SYMBOL 89 VDD 90 91 92 TEST ROMCLK ROMDATA I/O I - O I/O POLARITY - Supply of +3.3 V power. - Connected to GND. DESCRIPTION
- -
Outputs the clock to EEPROM. For details, see "TIMING CHART (A)". Inputs the data from EEPROM/output the data to EEPROM. For details, see "TIMING CHART (A)". AE and AWB lock selection. H : Auto exposure, auto white balance lock ON L : Auto exposure, auto white balance lock OFF No connection. White balance mode selection. For details, see "WHITE BALANCE" in Preset Function Control. White balance mode selection. For details, see "WHITE BALANCE" in Preset Function Control. White balance mode selection. For details, see "WHITE BALANCE" in Preset Function Control. Mirror mode selection. L : Normal mode H : Mirror mode Selection of aperture enhancement. H : ON L : OFF A grounding pin.
93 94 95 96 97
AEAWB LOCK NC WBSEL1 WBSEL2 WBSEL3
I O I I I
- - - - - -
98
MIR SEL
I
99
APT
I I
- -
100 GND
6
LU850425
FUNCTIONAL DESCRIPTION Serial Control Interface (For adjustment tool)
FORMAT OF DATA TRANSFERS * Format of transfers : Asynchronous (Based on RS-232C standard) * Bit rate : 9 600 bps * Data length : 8 bits * Parity check : 1 even parity bit * Start bit : 1 bit * Stop bit : 1 bit * Signal voltage level (CMOS)
3.3 V UIN GND Start Bit D0 LSB Data Bit D1 D2 D3 D4 D5 D6 D7 MSB Even Parity Bit Stop Bit
* Connection
UIN UOUT UIN UOUT TXD RXD PC or Adjustment tool
Microcomputer
ADJUSTMENT MODE When the signal level of pin 6 (ADJIN) is low, the video quality adjustment by a PC or an adjustment tool is possible. When the signal level of pin 6 (ADJIN) is high, the microcomputer control is by a PC.
7
LU850425
Preset Function Control
(by high/low condition at inputs and by DC level of A/D inputs) Below functions are available to be selected under the condition of a low level of pin 6 (ADJIN). WHITE BALANCE (1) White Balance Mode Selection by Pins 95, 96 and 97 (Digital Input) White balance mode is selected by the combination of high/low level at three pins below.
WBSEL1 95 PIN L H L H L H L H WBSEL2 96 PIN L L H H L L H H WBSEL3 97 PIN L L L L H H H H
WHITE BALANCE MODE A/D input (pin 48) control is available. See "(2) White Balance Mode Selection by Pin 48 (Analog Input)". A/D input (pin 53 and 54) control is available. Set the condition just before selecting this mode. Auto white balance mode. Preset mode 1 Preset mode 2 Preset mode 3 Preset mode 4
NOTE
1 1 1 1
(2) White Balance Mode Selection by Pin 48 (Analog Input) White balance mode can be selected by DC input level at pin 48 if all the above 95, 96, and 97 pins are connected to low.
VOLTAGE LEVEL (PIN 48) 0 to 0.47 V 0.48 to 0.94 V 0.95 to 1.41 V 1.42 to 1.88 V 1.89 to 2.35 V 2.36 to 2.82 V 2.83 to 3.3 V WHITE BALANCE MODE Auto white balance. Set the condition just before feed this DC level. Analog input (pins 53 and 54) control is available. Preset mode 1 Preset mode 2 Preset mode 3 Preset mode 4 1 1 1 1 NOTE
NOTE :
1. All of above preset modes are optional and each mode should be adjusted by a PC or an adjustment tool.
8
LU850425
ELECTRONIC SHUTTER SPEED CONTROL (1) Electronic Shutter Speed Selection by Pins 56, 57 and 58 (Digital Input) An electronic shutter speed can be selected by the combination of high/low level at three pins below under the condition of a high level of pin 9 (IRIS).
IRISSEL1 IRISSEL2 IRISSEL3 (PIN 56) L H L H L H L H (PIN 57) L L H H L L H H (PIN 58) L L L L H H H H
SHUTTER SPEED A/D input (pin 47) control is available. See "(2) Electronic Shutter Speed Selection by Pin 47 (A/D Input)". 1/60 s (NTSC), 1/50 s (PAL) 1/100 s (NTSC), 1/60 s (PAL) (flicker-less mode) Preset mode 1 Preset mode 2 Preset mode 3 Preset mode 4 Preset mode 5
NOTE
1 1 1 1 1
(2) Electronic Shutter Speed Selection by Pin 47 (A/D Input) An electronic shutter speed can be selected by DC input level of pin 47 if all the above 56, 57 and 58 pins are connected to low.
VOLTAGE LEVEL (PIN 47) 0 to 0.41 V 0.42 to 0.82 V 0.83 to 1.23 V 1.24 to 1.64 V 1.65 to 2.05 V 2.06 to 2.45 V 2.46 to 2.87 V 2.88 to 3.3 V SHUTTER SPEED 1/60 s (NTSC), 1/50 s (PAL) 1/100 s (NTSC), 1/60 s (PAL) Preset mode 1 Preset mode 2 Preset mode 3 Preset mode 4 Preset mode 5 Preset mode 6 NOTE
1 1 1 1 1 1
NOTE :
1. All of above preset modes are optional and each mode should be adjusted by a PC or an adjustment tool.
9
LU850425
(3) Window Selection of Emphasis Range at Auto Exposure
INPUT VOLTAGE (PIN 49) 0 to 0.8 V 0.81 to 1.6 V 1.61 to 2.4 V 2.41 to 3.3 V RANGE SELECTION Preset 1 Preset 2 Preset 3 Whole range See "Fig. 1". See "Fig. 1". See "Fig. 1".
Preset 1 A A A C
Preset 2 A A C
Preset 3 A
C
A
B
B
B
A = 25%
B = C = 100%
Emphasis range
Fig. 1 Emphasis Range
Auto Exposure Control
* Auto exposure control has the following three functions : q E/E (Electronic Exposure) function w Mechanical exposure function e AGC (Automatic Gain Control) function
Auto White Balance Control
* Control method : A white color temperature control is sampled by an I/Q conversion signal. * By the reasoning of the video condition from I/Q, brightness, and other signal levels, white balance is controlled to keep the best condition.
Carrier Balance Control
* Carrier balance control has the following two functions. q At power on, carrier balance is automatically tuned. w Carrier balance is automatically tuned against AGC operation.
10
LU850425
TIMING CHART
(A) LU850425 (COM),/BF24C04F (EEPROM) 1. Write Mode (Writing data that is sent from the adjustment tool to the EEPROM.)
Start RMCK RMDA 1 0 10000 Chip Address 0
ACK
11 s
12.5 s
88 s
5 s
5.5 s
Stop
WA7 WA6
WA0
ACK
D7 D6
D0
ACK
Word Address
Write Address
2. Read Mode
88 s 11 s 11 s
11 s RMCK RMDA 101 Start
11 s
29 s
00000
ACK
WA7
WA0 ACK
1
010
0001
Chip Address
Word Address
Chip Address ACK
D0 D7 Read Data [Address 0 EPROM data]
11 s RMCK RMDA
ACK
Stop
EEPROM MARK tHIGH tLOW tHD : STA tSU : STA tSU : STO
MINIMUM (s) 11 88 11 11 11
D7
D0
ACK
D7
D0
ACK
Read Data
Read Data
[Address 1 [Address 255 EPROM data] EPROM data]
11
LU850425
(B) LU850425 (COM),/LR38266 (DSP)
1.4 s 11.6 s SCK SOUT SLDI A7 A6 A5 A4 A3 A2 DSP Address (18h) A1 A0 D7 D6 D5 D4 D3 D2 DSP Data (26h) D1 D0 5.6 s
(C) LU850425 (COM),/IR3Y38M (CDS/AGC)
1.5 s SCK 8.6 s 3 s 2.7 s 4.3 s
SDATA
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0 Latch
(D) LU850425 (COM),/LR38578 (TIMING GENERATOR IC)
1.5 s EECLK EEDATA EESRB D0 D1 D2 D3 D4 D5 D6 D7 D8 SMD1 SMD2 MR1 MR2 MC1 MC2 MS1 MS2 MF1 MF2 Latch 6 s 1.5 s 1.5 s
(E) LU850425 (COM),/MB88346BV (D/A)
15.5 s 9.5 s 3.0 s 3.5 s 10.5 s
3.0 s DACK DATA (Ex.) DAST A05 1
3.5 s
0 1 0 Address (0Ah)
0
1
1 0 0 Data (64h)
1
0
0
Analog voltage is suited to data (64h)
(MB88346BV pin 4)
12
LU850425
ABSOLUTE MAXIMUM RATINGS
PARAMETER Power supply voltage Input voltage Output voltage Output "Low" current Output "High" current Total output current LOW level Total output current HIGH level Operating temperature Storage temperature SYMBOL VDD VI VO IOL1 IOL2 IOH CIOL1 CIOL2 CIOH TOPR TSTG RATING -0.3 to +6.5 -0.3 to VDD + 0.3 -0.3 to VDD + 0.3 +30 +4 -4 +100 +20 -20 -10 to +50 -50 to +150 UNIT V V V mA mA mA mA mA mA C C 1 2 3 1 2 3 NOTE
NOTES :
1. Applied to outputs. (Pins 27 to 34 and 39 to 45 without input pin.) 2. Applied to outputs. (Except pins 27 to 34 and 39 to 45 without input pin.) 3. Applied to all outputs.
RECOMMENDED OPERATING CONDITIONS
PARAMETER Power supply voltage System clock frequency SYMBOL VDD fCK MIN. 2.7 5.25 TYP. 3.3 5.5 MAX. 3.6 5.75 UNIT V MHz
OSCILLATION CIRCUIT (EXAMPLE)*
CK1 CK2 GND Oscillation frequency resistor is contained within the IC. (Recommendation) Ceramic oscillator = PBRC5.50B (KYOTO CERAMIC CO. LTD.) (PBRC5.50B is contained C1, C2.)
C1
Ceramic OSC
C2
* Don't put any signal line cross the oscillation circuit line.
13
LU850425
ELECTRICAL CHARACTERISTICS DC Characteristics
PARAMETER SYMBOL VIL1 VIH1 VIL2 VIH2 IIL1 Input current IIH1 IIL2 VOL1 Output voltage VOH1 VOL2 VOH2 Resolution Differential linear tolerance A/D Linear tolerance Combined tolerance Resolution D/A Output resistance Combined tolerance IDD IDDH Power consumption IDDS1 IDDS2 fSYS = 2.25 MHz fSYS = 2.25 MHz, HALT mode fSUB oscillation, STOP mode fSUB stop, STOP mode 0.03 4 1 20 1 VIH = 0 V, VDD = 3 V VIN = VDD, VDD = 3 V VIN = 0 V, VDD = 3 V IOL = 6 mA, VDD = 3 V -10 -25 CONDITIONS
(VDD = 2.7 to 3.3 V, TOPR = -20 to +70 C)
MIN. 0 0.8VDD 0 VDD - 0.3 TYP. MAX. UNIT 0.2VDD V VDD 0.3 VDD -10 10 -50 1 0.5 V V V A A A V V V V 10 1 3 4 8 6 0.06 8 2 40 6 2.5 5 6 bits LSB LSB LSB bits k$ V mA mA A A 8 7 NOTE 1 2 3 4 5 6
Input voltage
IOH = -0.6 mA, VDD = 3 V VDD - 0.5 IOL = 0.6 mA, VDD = 3 V IOH = -0.6 mA, VDD = 3 V VDD - 0.5 VR = VDD = 3 V, fM = 5.5 MHz VR = VDD = 3 V, fM = 5.5 MHz VR = VDD = 3 V, fM = 5.5 MHz VR = VDD = 3 V, fM = 5.5 MHz VR = VDD = 3 V
9 10
NOTES :
1. Applicable pins : 95 to 100, 1, 81 to 84, 91 to 94, 64 to 66, 47 to 54, 19 to 26, 12, 13, 15, 17, 18, 72 to 75, 77 to 80 without output pin. 2. Applicable pins : RESET, 3 to 10, 67 to 71, 11, 14, 16, XCK1 without output pin. 3. Applicable pins : 3 to 10, 95 to 100, 1, 81 to 84, 91 to 94, 64 to 71, 47 to 54, 19 to 26, 11 to 18, 72 to 75, 56 to 59 without output pin. 4. Applicable pin : RESET 5. Applicable pins : 27 to 34, 35, 39 to 45 without input pin. 6. Applicable pins : 95 to 100, 1, 81 to 84, 91 to 94, 64 to 71, 19 to 26, 11 to 15, 72 to 75, 77 to 80, 56 to 59 without input pin. 7. Applicable pins : 60, 61 8. No load condition, VDD = 3 V, main-clock frequency = 5.5 MHz 9. No load condition, VDD = 3 V, fSUB oscillation status (32.768 kHz), VR = GND, input signal fixed. 10. No load condition, VDD = 3 V, OSCIN = GND, VR = GND, input signal fixed.
14
PACKAGES FOR CCD AND CMOS DEVICES
PACKAGE
100 LQFP (LQFP100-P-1414)
0.5TYP. 75 76 0.20.08 51 50 0.08 (1.0) M 0.1250.05
(Unit : mm)
Unit : mm
14.00.2
16.00.3
100 1 (1.0) 14.00.2 16.00.3 25
26 (1.0)
(1.0 )
0.6375 1.70MAX. 1.40.2 0.10.1
15
Package base plane
15.00.2
0.1

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