3357 /_LC9907 Timing Generator Solid-State Imager LC990

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3357 /_LC9907 Timing Generator Solid-State Imager LC990

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Ordering number:EN3357
3357 /_LC9907
Timing Generator
Solid-State Imager
LC9907 timing generator exclusively used 2-hundred- thousand pixel white-and-black, color Solid-State Imager.
Single supply voltage
Low-power dissipation thanks CMOS process technology
Output pulses required driving Solid-State Imager signal processing
external synchronization functions: synchronization using Horizontal SYNC, input, Reset synchronization with resets
Electronic automatic iris
Automatic optical control implemented based Sanyo original regulated stop-down technology. This shows excellent adaptability even ultra-high bright environment thereby providing high-speed response. magnification switched between 1/16 1/8. shortest exposure 1/15000 seconds.
Center exposure/security optical control available Long exposure times
automatic iris used even long exposure mode.
Package Dimensions 3150-Q64AVL
unit:
17.2
.64.
14.0
(1.6)
MMMMMTO"
0.35
(0.8)
15.6
0.15
2.70
(STANO OFF)
SANYO Electric Co., Ltd. Semiconductor Business Headquarters
TOKYO OFFICE Tokyo Bldg.,1-10,1 Chome, Ueno, Taito-ku,TOKYO, JAPAN
N060JN.JK 3357-1/17
LC9907
Absolute Maximum Ratings
Parameter Symbol Condition Limits Unit
Maximum Supply Voltage Ta=25TC 4-7.0
Input/Output Voltage =25*0 -0.3toVoo+0.3
Maximum Power Dissipation
Operating Temperature Topr
Storage Temperature Tstg -55to
Soldering Heat Resistance 10-sec.dip-soldering pins only
Allowable operating Ratings
Parameter Symbol unit
Supply Voltage
Input Voltage Range
Characteristics 4.5V 5.5V,
Parameter Symbol Condition Unit Applied Pins
Input "H'-level Voltage CMOS Level 7Vdd input pins
Input 'L'-level Voltage CMOS Level input pins
Output 'H'-level Voltage output pins except for(1)
Output 'L'-level Voltaqe Iol= output pins
Output 'H'-level Voltage CMOS Voo-0.05 output pins except
Output 'L'-level Voltage IOL= CMOS Vss+0.05 output pins
Output 'H'-level Voltage
Output 'L'-level Voltage IOL=30mA
Input Leakage Current =Vss, fu/\ output pins
Output Leakage Current high impedance output VSYN CL"-(1)
3357-2/17
LC9907
Block Diagram
SELDOOR
LC9907
Layout
Pull-op resistor output Pull-down resistor output
3357-3/17
LC9907
Description
Number Name Functional Description
Horizontal SYNC, input Synchronization signal input external synchronization
Phase comparator Output phase comparison horizontal synchronization input with internal HSYNC. This used forming horizontal PLL.
LPFI Inverter input low-pass filter
LPFO Inverter output low-pass filter
4FSCI Inverter input source oscillation 14.318MHz
4FSCO Inverter output source oscillation
SELBW Color/monochrome switching Color Monochrome (black white)
SELDOOR Optical door select Full optical door/center optical door Security optical door
SELIT inter lace/non-inter lace select 60Hz image pickup Interlace Non-interlace {storage 4>4) Long-exposure based non-interlace image pickup with 3-picture element read-out (The storage gate changed every 1/60 seconds). Storage start Storage start
SELAT Automatic iris/manual iris switching Manual iris Automatic iris
Field identification signal
Vertical driver pulse
Horizontal drive pulse
Vertical write enable
Horizontal reset pulse
Vertical reset pulse
LONGI LONGO Exposure cycle select LONG1 LONGO Exposure cycle (seconds) 1/60 1/30 1/20 1/15
TEST Test Normal operation mode Test mode
RSTB Reset Internal initialization initialization
Frame shift frequency select 3.58MHz 1,79MHz
STEP Automatic iris magnification select 1/16
Analog switch center-screen video signal isolation. Analog switch turns during output screen center location (1/4 size area).
Continued next page.
3357-4/17
LC9907
Continued from preceding page.
Number Name Functional Description
IRIS2 Optical data Input automatic Iris Refer optical method.
IRIS
VIDI Optical analog switch Refer optical method.
VIDO
OFD2 pulse pulse driving electronic shutter
OFD1 pulse pulse frame shift
Pulse CCD01
Pulse CCD03
Pulse CCD02
Pulse CCD04
Pulse CCD0S4
Pulse CCD0S1
Pulse CCD0S2
Pulse CCD0S3
Pulse CCD^R
Pulse CCD0H2
Pulse CCD^HI
Sampling precharge pulse
Sampling data pulse
PBNK Preblanking pulse
Clamp pulse
Clamp pulse
Color sampling pulse Green
Color sampling pulse Cyan
Color sampling pulse Yellow
Clamp pulse
CBNK Composite blanking pulse
CSYNC Composite synchronization
Burst flag
VSYNCL Exposure cycle response type vertical synchronization pulse (open drain output)
Source oscillation output Connected with 4FSC (pin LA7266
SELSSG External synchronization mode select interna! synchronization, reset synchronization synchronization horizontal synchronization signal input
Power supply Ground
Power supply
3357-5/17
LC9907
External Synchronization
LC9907 external synchronization modes: reset synchronization reset reset) reset-HPLL type synchronization.
Reset synchronization
reset synchronization based master clock synchronization source oscillators. reset circuit driven setting SELSSG ML". reset circuit controlled (HR) while reset circuit controlled (VR). level changes from corresponding reset circuit will activated. reset pulse will cause reset pulse will also cause reset pulse changes from with EVEN field will selected. Otherwise, field will selected. reset synchronization timings shown later this catalog. reset circuits driven internal SYNC, generator levels change This means that LC9907 internal SYNC, generator which accepts outside interrupts.
External synchronization using HPLL reset
LC9907 external synchronization that implemented HPLL reset. First, select
internal synchronization mode setting SELSSG level 'NC( connected)' state.
level then input vertical drive pulse (negative pulse) pin.
configured inputting HSYNC signals (pin using (pin
output.
typical HPLL V-reset external synchronization shown below.
HSYNC
LC9907
3357-6/17
LC9907
Long-time exposure
LC9907 long-time exposure operation mode that selected software. maximum cycle long-time exposure 15Hz that followed 20Hz, 30Hz 60Hz (base cycle). Table shows relationship between software selection data long-time exposure modes.
Table Long-time exposure modes
LONG LONGO Exposure time (unit: seconds)
1/60
1/30
1/20
1/15
long-time exposure mode selected signals processed normally, flickers produced screen. These flickers corrected image storage area adjustment. However, CCDs interlaced like normal exposure, flickers moving down will produced. result, long-time exposure mode selected, LC9907 automatically starts non-interlace drive that reads three pixels.
Even long-exposure mode, automatic iris manual iris functions still effective. Note that automatic iris response speed will reduced according exposure cycles.
long-time exposure mode, sensitivity will upgraded according exposure cycles. However, temperature should carefully handled because dark current increase.
Optical door modes
optical control data automatic iris operation consists bits. shown Table three automatic iris operation modes selected setting optical control data.
optical control data accepted rising edge (VWE) input signal (near tail each field) determine iris point (electronic shutter position) next field.
automatic iris function used taking 2-bit data from video signal. operation mode that relates optical area discussed next.
LC9907 internal analog switch that enables center screen isolation. This switch reduces screen area into fourth give highest priority optical center door data.
Center optical mode There types analog switch: WBI/WBO VIDI/VIDO. WBI/WBO switch always available center optical processing.
VIDI/VIDO switch used this processing only SELDOOR 'L1.
center optical mode will very effective backlight adjustment camera application systems where many subjects located center screen.
Table Optical control data iris mode
IRIS1 IRIS2 Mode
Open
change
Stop-down
121H
61.5H
Effective screen size
Center screen produced analog switch
3357-7/17
LC9907
Security optical mode
camera locations application systems such door phones monitor systems fixed subjects always appear screen center. such application systems, backlight fully adjusted center optical mode. compensate that drawback, LC9907 provides fixed camera applications with security optical function.
SELDOOR changed analog switch pins (VIDI), (VIDO) internal optical control data decision circuit interrelated joint operation. Optical control data collected from areas shown following four figures, evaluates each data ('0' Open, Best, Stop-down), adds area values. decisions shown Table will then made based that number areas with value (best).
Area Area Area Area
Table Security optical mode decisions
'best' areas Evaluation total
Open change Stop-down
0,2.4
Decisions
According decision values shown Table least area four areas optimum exposure. short, total evaluation value four areas within optimum exposure range. Each area selected time sequence selection cycle 4Vs.
This means that decisions made every 4Vs. short, decisions made times seconds 60Hz image pickup).
U-U-LJ
Area
Decision
camera locations door phone systems fixed that low- brightness subjects appear bottom area (one fourth) screen, good backlight adjustment made.
3357-8/17
LC9907
Electronic auto iris
Electronic auto iris control exposure electronic shutter (function control image pickup time with drive).
LC9907 allows type (through lens) auto iris. desired optical door mode selected from Sanyo original modes. detailed information optical door modes, refer related item.
this section, regulated stop-down mode will discussed.
certain amount photon input CCD, output increased proportion shutter speed. LC9907 provides auto iris function using field back loop. field back loop, output proportion certain shutter speed used determine shutter speed next field. LC9907 auto iris function uses optical control data (stop-down, change, open), current shutter speed exposure period) stop-down rate 1/16: selectable) calculate shutter speed next field shown below.
Stop-down change Open result, change exposure time (stop-down rate) regulated.
open
Shutter RI_KL
L-L-J{
S-MSAI 4-1S1AI
S-HSAl Sl+ISIAl
Frame Shift, Electronic shutter
response center door mode 60Hz image pickup will about seconds from 'release' (1/60 seconds) maximum stop-over (1/15000 seconds) (stop-down rate 1/8) about seconds (stop- down rate 1/16).
auto iris function easily configured shown below.
3357-9/17
LC9907
External add-on circuit
Power-on reset circuit LC9907 requires power-on reset circuit. circuit shown below configured with ease.
interface function with another control system such camera control boards needed, reset pulse should input (RSTB) after power applied.
10/iz:
Unit (resistance: capacitance:
Clamp pulse
following circuit should added user application product auto iris manual iris 1/15000 seconds used.
LC9907
products described contained herein intended surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment like, failure which directly indirectly cause injury, death property loss.
Anyone purchasing products described contained herein above-mentioned shall:
Accept full responsibility indemnify defend SANYO ELECTRIC CO., LTD., affiliates, subsidiaries distributors their officers employees, jointly severally, against claims litigation damages, cost expenses associated with such use: impose responsibility fault negligence which cited such claim litigation SANYO ELECTRIC CO., LTD., affiliates, subsidiaries distributors their officers employees jointly severally.
Information (including circuit diagrams circuit parameters) herein example only; guaranteed volume production. SANYO believes information herein accurate reliable, but- guarantees made implied regarding infringements intellectual property rights other rights third parties.
3357-10/17
CSYNC
PBNK
CBNK
OFD1
OFD2
DS1/DS2
1111
minimi
terr
istt
"ULU
""ST
ra^a
isir
ixyyyyyyi
JJ_L
262.5
271.5
282.5
rrmuLiiuiiiiM
TTTTTTTSr
11111111
iter
T5^n
JLX3L
JSTTW
1111
ixyyxxyyi
Notes
shaded DS1/DS2 means that equals DS1.
CBNK PBNK will inverted black-white mode. frame shift frequency 1.79MHz.
frame shift frequency 3.58MHz, number pulses generation positions same those 1.79MHz mode.
detailed information frame shift electronic shutter, refer time chart VCCD.
LC9907
H-TIMING
tCsl
-Ski
CM.-CM CMOOT.-CSJm
3357-12/17
LC9907
Sampling Timings
3357-13/17
LC9907
VCCD timings
Frame shift Electronic shutter
(ODD field frame shift) (EVEN field frame shift)
FSF= (Frame shift frequency 1.79MHz) FSF=1 (Frame shift frequency 1.79MHz)
3357-14/17
LC9907
(ODD field frame shift) (EVEN field frame shift)
FSF=0 (Frame shift frequency 3.58MHz) FSF=0 (Frame shift frequency 3.58MHz)
(ODD field frame shift)
~1_J
I_I-1_I-L
(EVEN field frame shift)
~n_i i_r~
~i_i
1_I-L
3357-15/17
LC9907
(ODD field discharge) First transfer
Second transfer
i_r-L_r
i_rr
(EVEN field discharge) First transfer
Second transfer
LC9907
External synchronization Reset synchronization
EVEN field
Internal MCP2 Internal reset Internal counter value
Internal reset Internal counter value
field
Internal MCP2 Internal reset Internal counter value
Internal reset
"Ljiixrijijijxnjijxr^^
"i_r
Previous value
Previous value
~i_r
Previous value]
Previous value
delta should greater than
xJxmriiJTnjnjiJxnj^^
Previous value
Previous value
phase comparison
Internal HSYNC
Long-time exposure timing (3-times exposure)
VSYNCL
VBNK
OFD2
T~ir
262.5
-4V-
262.5
_i_r
VSYNCL generated when pull-up resistor added open drain output circuit.
3357-17/17

3357 /_LC9907 Timing Generator Solid-State Imager LC990

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