COHU 7700-2 SERIES 1004 X 1004 Product manual
7700-2 SERIES 1004 X 1004
PROGRESSIVE SCAN CAMERA
TECHNICAL REFERENCE MANUAL
Model 7700-2 Camera
Technical Manual 6X-1029C April 28, 2011
CAMERA LINK
Shown with optional
1/4-20 mounting block
26X-1029C
7700-2 TECHNICAL REFERENCE
Table 1. Model 7700-2 Specications
ELECTRICAL
Format 1/2-inch monochrome or color interline transfer CCD with square pixels
Pixels 1004 x 1004
Pixel Size 7.4 µm x 7.4 µm
Total Pixels 1,008,016
Output Characteristics 10-bit depth at 30 fps (full resolution)
Sync Internal crystal or external trigger
Shutter Control
• Fixed shutter: exposure time preset by camera setting
…Implicit lines: 1- 512 line interval in 10 steps
…Explicit lines: 1 - 65,000 line interval (line interval = 33.2 µs)
…Multiple frames: 1 - 65,000 frame intervals (frame rate = 33.3 µs)
• Pulse width shutter (Snapshot mode only): Exposure time determined by pulse width
of externally applied trigger
Integration 1 to 65,000 frames (1 frame = 1/30 s) externally controlled
Sensitivity 4 lux (monochrome) with no shuttering (1/30 s) at 2450 K
Gamma 1.0 (xed)
Gain 0 to 34 dB, externally controlled
S/N Ratio 58 dB black, 48 dB white
Spectral Response See gure 3 and gure 4 (color antialiasing lter)
Power Input 12±1.2 V dc
Power Consumption 390 mA (4.7 W)
Modes of Operation
Video Mode Free running, asynchronous
Snapshot Mode
• Captures single image, 1/25,000 s to innity, initiated extrernally by applied trigger
pulse or by serial command. Exposure determined by pulse width of external trigger
• Full resolution: 10 bit depth at 30 fps
• Partial Readout: Dene single position for start of active readout in groups of four
lines
Gain & Offset Control • Gain: Video gain amplier setting of 320 values
• Offset: Video black level setting of 1024 values
Shutter Control • Fixed: Exposure time preset by camera setting
• Variable: Software controlled 1/25,000 s to 870 s
MECHANICAL AND ENVIRONMENTAL
Size See gure 6
Weight 12 ounce (340 grams) less lens
Shock 15 g’s any axis, nonoperating per MIL-E-5400T
Operating Temperature -20 to 60 °C
Storage Temperature -30 to 70 °C
EMI Emissions FCC Class A
CAMERA INTERFACES
Lens Mount CS-mount, adjustable; 5 mm externer ring adapts to C-mount lenses
Camera Link Connector 26-pin MDR
Power Connector 3-pin Switchcraft TB3M (Cohu 1310356-003)
Reset Button Recessed rear panel (Hole for punch through of a paper clip)
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Cameras of the 7700-2 series provide
10-bit output in Camera Link format to an
external frame grabber.
Operating in progressive scan mode,
they use a 1/2-inch sensor to provide 1004
× 1004 pixel resolution at 30 frames per
second.
Higher frame rates can be established,
but with a corresponding reduction in the
number of lines available for readout.
The color version (7720-2) of this cam-
era has an antialiasing lter in front of the
sensor. Sensor color ltering is the Bayer
pattern. All color processing is performed
by the external computer.
Operation in the UV region, (250-400nm)
requires a model 7732-2000 version of the
camera — which has the sensor faceplate
glass removed.
Setup and control of the camera is through
the rear-panel MDR connector operating via
asynchronous serial communications.
Offset, gain, and other functions are ad-
justable through this serial interface. Preset
camera congurations can be established to
allow for a rapid change of duty.
Inserting a paper clip through a hole in the
rear panel performs a hard reset. Also on the
rear panel is a green indicator that illuminates
when the 12 V dc power is applied.
7 7 × × — 2 0 0 0 / ××××
CAMERA
SERIES
VIDEO
FORMAT
POWER
CONFIGURATION
OUTPUT
OPTION
OPTION
LENS
OPTIONS
1 - monochrome
2 - color
3 - monochrome
without sensor
glass (to obtain
UV response)
2 - camera link
000 - none
0000 - none
2 - 12 Vdc input to camera
rear panel (500 mA)
Figure 2. Model Number Interpretation Diagram
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Figure 3. Sensor Response
(Cut lter effect on overall camera response not shown in this gure)
400 500 600 700 800 900 1000
300200
.00
.05
.10
.15
.20
.35
.40
.45
.50
.25
.30
Absolute Quantum Efficiency
Note: Operation in the UV region requires a monochrome camera having had its sensor faceplate glass removed
Bu
R
Gn
UV
Mono
Wavelength (nm)
Figure 4. Antialiasing Color Cut Filter
Note: This cut l-
ter rolls off over-
all response for
color versions of
the camera from
about 500 nm out
beyond 700 nm
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Table 2. Camera Mounted
Items Supplied
DESCRIPTION PART NUMBER
CS mount 8359208-001
C-mount adapter
(5 mm extender ring) 2010695-001
Setscrew, nylon
tipped, stainless, 4-40
x 5/32
2010258-005
Note: These items typically mount on the
camera when it is shipped (5 mm C-mount
adapter may be loose part)
Table 3. Type 8430-0
Accessory Kit
DESCRIPTION PART NUMBER
Power Plug, 3 socket
(Switchcraft TA3F) 1310356-103
Mounting Block (with
two 4-40 x 5/16 pan
head cross slotted
screws
8428-8
Wrench, hex key, “L”
type, 0.050 across
ats (for lens mount
setscrew)
9710010-009
Note: If this optional accessory kit has been
ordered with the camera these items will be
contained in a separate packet included in
the shipping box
Figure 5. Front View
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2.06
2.06
1.03
0.375
0.85
VID/CTL/PWR - I/0
12VDC
C OHU
1004 X 1004
30 fps
3.10
0.197
(5 mm)
2.76
1.00
1.46
1/4-20 Thread X 0.325 Deep
(2 Places)
Unless otherwise noted
all dimensions in inches
Optional
Mounting Block
(P/N 8428-8)
See alternate drawing below
for mounting dimensions
of camera base without
the optional mounting block
Mounting Dimensions Without
Optional Mounting Base
4-40 Thd x 0.21 Deep
(2 Places)
1.6501.14
(nominal)
Figure 6. Dimensions
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Power Connector Functions
PIN
NO. FUNCTION
1+12 volt
2ground
3(no connection)
13
2
Use minimum 500 mA supply
Rear Panel View
Power Indicator
Reset Access
12VDC
VID/CTL/PWR -I/0
Figure 7. Power Input Features
Figure 8. Type 8368-4 Power Pack (12 V dc 500 mA)
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Figure 9. Bottom View
(with mounting adapter installed)
Figure 10. Rear Panel
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Table 5
3M Camera Link Cable (B series)
Thumbscrew type shells at each end
For all serial numbers. But for s/n’s above
410386 it is better to use the “T” series
3M PART NUMBER LENGTH (meters)
14B26-SZLB-100-0LC 1
14B26-SZLB-200-0LC 2
14B26-SZLB-300-0LC 3
14B26-SZLB-450-0LC 4.5
14B26-SZLB-500-0LC 5
14B26-SZLB-700-0LC 7
14B26-SZLB-A00-0LC 10
These cables available from Cohu on a special
order basis (7610169-300 series)
3M Interconnections Solutions Division
6801 River Place Boulevard
Austin TX 78726-9000
Phone 800-225-5373
NOTE: Cables of this “14B26” series can
be used with cameras of all serial num-
bers
Table 6
3M Camera Link Cable (T series)
Thumbscrew type shells at each end
Only for serial numbers above 410368
3M PART NUMBER LENGTH (meters)
14T26-SZLB-100-0LC 1
14T26-SZLB-200-0LC 2
*14T26-SZLB-300-0LC 3
14T26-SZLB-450-0LC 4.5
14T26-SZLB-500-0LC 5
14T26-SZLB-700-0LC 7
14T26-SZLB-A00-0LC 10
*This 3-meter cable is available from Cohu stock
as p/n 7610169-301 (3-meter). Other cables in the
“-301” series are special order from Cohu
3M Interconnections Solutions Division
6801 River Place Boulevard
Austin TX 78726-9000
Phone 800-225-5373
NOTE: This “14T26” series can be used
only with cameras above serial number
410368
Table 4. Mating Rear Panel Connector Plugs
DESCRIPTION PART NUMBER
POWER Cohu 1310356-103 (Switchcraft TA3F) [A complete plug and backshell assembly]
CAMERA
LINK
Camera link 26 pin connectors require special tooling to assemble.
Thus, cables are only available pre assembled.
Note: All cameras can use cables of the 3M company 14B26 series (table 5).
However, for cameras above serial number 410368 only cables of the 14T26
series can be used (table 6).
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Table 7. Camera Connector
Pin Functions
PIN NAME FUNCTION
1DGnd digital ground
2TxOut 0- - digital video data
3TxOut 1- - digital video data
4TxOut 2- - digital video data
5TxClk- - clock
6TxOut 3- - digital video data
7Rx+ + serial control receive
8Tx- - serial control transmit
9- (no connection)
10 - (no connection)
11 Trig- - snapshot trigger input start
12 - (no connection)
13 DGnd digital ground
14 DGnd digital ground
15 TxOut 0+ + digital video data
16 TxOut 1+ + digital video data
17 TxOut 2+ + digital video data
18 TxClk + + clock
19 TxOut 3+ + digital vdieo data
20 Rx- - serial control receive
21 Tx+ + serial control transmit
22 - (no connection)
23 - (no connection)
24 Trig+ + snapshot trigger input start
25 - (no connection)
26 DGnd digital Ground
1
26
Mating View of Connector on
Rear Panel of Camera
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Table 8. 7700 Camera Link Cable Functions
Cross Reference
COHU CAMERA
SIGNAL
CAMERA
CONNECTOR
FRAME GRABBER
CONNECTOR
CAMERA LINK
SIGNAL
DGNDD 1 1 Inner Shield
DGNDD 14 14 Inner Shield
TXOUT0 - 225 X0 -
TXOUT0 + 15 12 X0 +
TXOUT1 - 3 24 X1 -
TXOUT1 + 16 11 X1 +
TXOUT2 - 4 23 X2 -
TXOUT2 + 17 10 X2 +
TXCLK - 522 Xclk -
TXCLK + 18 9 Xclk +
TXOUT3 - 6 21 X3 -
TXOUT3 + 19 8 X3 +
RX + 7 20 SerTC +
RX - 20 7 SerTC -
TX - 8 19 SerTFG -
TX + 21 6 SerTFG +
—9 18 CC1 -
—22 5CC1 +
—10 17 CC2 -
—23 4 CC2 +
TRIG + 11 16 CC3 -
TRIG - 24 3 CC3 +
NC 12 15 CC4 -
NC 25 2 CC4 +
DGNDD 13 13 Inner Shield
DGNDD 26 26 Inner Shield
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Table 9. Serial Control Modes
SERIAL CONTROL LVDS via Camera Link: 9600 baud rate, 8 data bits, 1 start bit, 1 stop bit, no parity,
and no handshaking
SERIAL INPUT COMMANDS (see table 12, Protocol, for a complete listing)
SETUP
COMMANDS
Go to Default
Set Mode
Operational Mode: Continuous / Snapshot
Set Exposure Mode, Implicit Lines, Explicit Lines, Frames, External
Set Offset Level
Set Gain Level
Set Partial Readout (starting and stopping lines in increments of 4)
OPERATION
COMMANDS
Capture Video Frame
(Snapshot and Integration Operations)
Snapshot and integration operations are basically the same but with different time
intervals
Snapshot allows image capture with high-speed shutter
Integration allows image capture with low-speed shutter
Each can be initiated externally by either the TRIG input signal or by
command through the serial interface
TRIG Iniated Capture. Two modes are supported when using TRIG:
1. Fixed Shutter
2. Pulse Width Shutter
With Fixed Shutter the camera will be pre-set with the shutter value and capture
will be initiated on the leading edge of TRIG
With Pulse Width Shutter, TRIG will be received as a pulse that starts capture on
the leading edge and ends capture on the trailing edge — supporting intervals
from 40 µs to innity
Serial Command Initiated Capture: Commands will be suppported that can
initiate a snapshot or integration capture using xed shutter values
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Table 10. Operation
MODE DESCRIPTION
Video Continuous (free running)
Snap shot
Video Rate Full resolution - 30 fps
Snap Shot Modes
External Single Trigger
Fixed Trigger
Multiple Lines or Multiple Frames.
Initiate capture with TRIG falling edge
External Single Trigger
Pulse Width Shutter
Any shutter from 1/25,000 s to innity; shutter start/stop times determined by TRIG
pulse width
Misc Controls
Gain / Offset Individual gain and offset control through serial interface
Serial
(Shipped as 9600 baud)
Serial control sets all camera modes. Once set, camera remembers state. Serial con-
trol not required for operation. (Internal jumpers select baud rate.)
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Table 11. Operating Modes
ITEM MODE DESCRIPTION
1 VIDEO MODE
Continuous (Full Resolution) Free Running at 30 frames per second (30 fps)
Continuous (Partial Readout) Free Running
Snap Shot: Captures single image when triggered
2 VIDEO RATE
Continuous: 30 fps
Snap Shot: Maximum frame rate determined by exposure time and readout
time. Faster frame rates may be achieved using Partial Readout mode at the
expense of resolution
3EXPOSURE
CONTROL
High Speed Implicit Shutter: 1/60 sec to 1/25,000 sec in 10 steps
Multiple Lines Explicit Shutter: Exposure time adjustable by number of line
intervals (33.3 µs) from line 1 to 65,000 lines
Multiple Frames: Exposure time adjuatable by number of frame intervals (33.3
ms) from 1 frame to 65,000 frames
Note: Multiple Lines exposure of 1004 = Multiple Frame exposure of 1
External Shutter: Exposure time determined by Pulse Width of an externally
applied trigger pulse (Async Snap Shot mode only)
4GAIN & OFFSET
CONTROL
Gain Control:0-30 dB. Setting values from 0 to 320 via serial command
Offset Control: Video Black level adjustment: 0 to 1023 via serial command
5SNAP SHOT MODES
Snap Shot imaging may be accomplished either by applying an external trig-
ger pulse to camera or by giving the camera a serial command.
ASYNC SNAP SHOT. Maximum Frame Rate is determined by exposure time
and readout time. A new trigger may not be applied until readout of previous
image is complete. Readout time = [(number of lines read out ) + (number of
lines dumped) / 4] x 33.2 µs
• Async Snap Shot (Internal Exposure Modes): Exposure is initiated by falling
(leading) edge of an external trigger pulse or by serial command. Exposure
time is determined by camera exposure mode (MultipleLines / MultipleFrames)
Async Snap Shot (External Exposure Mode): Exposure is initiated by the fall-
ing (leading) edge on an external trigger pulse or by giving a Start exposure
command. Exposure is ended by the rising (trailing) edge of the exterenal trig-
ger pulse or by giving an End exposure command.
SYNCHRONOUS SNAP SHOT Maximum Frame Rate is determined by read-
out time. Trigger may be applied during the readout of previous capture frame,
but previous readout must complete before end of the triggered exposure time.
Readout time = 33.3 ms (Partial readout is not available in this mode). Maxi-
mum frame rate can approach 30 fps.
• Synchronous Snap Shot (Internal Multiple Lines Mode Only): Exposure
begins with the rst Horizontal Drive pulse following the leading edge of an
external trigger pulse or following receipt of a serial command. Expsure time is
determined by camera exposure (Multiple Lines) setting. Readout begins with
the next horizontal drive pulse following CCD transfer. (Minimum of 50 Line
Exposure setting).
Continued
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Table 11. Operating Modes (continued)
ITEM MODE DESCRIPTION
6PARTIAL
READOUT
(Not available in synchronous snapshot mode)
Available in the Vertical Frame.
Starting line and ending line are selectable in increments of 4
• Full Readout: Starting at line 0, ending line 1033
• Normal Readout Top: starting line 0, ending line (any increment of 4)
• Normal Readout Center: starting line (any increment of 4), ending line any
increment of 4 greater than the starting line.
• Normal Readout Bottom: starting line (any increment of 4), ending line 1033
7RESET CONTROL
• Manual Reset: External reset button inside behind rear panel - accessible with
paper clip through hole
• Power-up Reset: Camera always powers up to its most recent operating mode
8SERIAL CON-
TROL
Access through camera link serial interface
• LVDS asynchronous serial communications between camera and frame
grabber
• Controls all conguration and operation functions (including factory adjustments)
• 9600 baud rate
• 1 start bit, 1 stop bit, no parity, no handshaking
• See camera protocol included in table 12 of this manual
9 OUTPUTS
Access through camera link MDR connector
• Video data: 10 bit
• Sync outputs: Horizontal (line valid) drive, vertical (frame valid) drive
• Clock output: Pixel clock (40 MHz, 25 ns)
10 CAMERA POWER Access through power input: dedicated 3-pin connector
12 ±1.2 V dc, 500 mA, input to rear panel
11 LENS Standard CS mount lens (or C-mount with 5 mm adapter ring)
12 DEFAULT
SETTINGS
Default settings are those in which the camera is shipped. There is also a default
mode command which when executed will set the camera mode to the default
mode listed.
• Camera defautl mode is continuous, full resolution, implicit multiple line shut-
ter (512). Gain and offset registers set to the value of the gain and offset default
registers.
End
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Figure 11. Sensor Area Timing
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Table 12. Protocol
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Table 12. Protocol (continued)
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Table 12. Protocol (continued)
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Table 12. Protocol (continued)
Table of contents
