Teledyne P2-2x-xxx40, P2-4x-xxx40, P2-2x-xxx30, Piranha 2 P2-2x-xxx40, Piranha 2 P2-4x-xxx40 User Manual

P2-2x-xxx40, P2-4x-xxx40, P2-2x-xxx30

Line Scan CCD Cameras

4-May-11

03-032-00493-14

www.teledynedalsa.com

Camera User’s Manual

Revised 5/4/2011 10:27:00 AM

2 Piranha 2 User’s Manual

North America

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Tel: [phone]
Fax: [phone]

www.teledynedalsa.com
[e-mail]
[e-mail]

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Fax: +49 - 8142 – 467746
www.teledynedalsa.com
[e-mail]
support@teled yned alsa.com

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Tel: [phone]
Fax: [phone] (fax)
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[e-mail]
support@teled yned alsa.com

© 2011 Teled yne DALSA. All information provided in this manual is believed to be accurate and reliable.
No responsibility is assumed by Teledyne DALSA for its use. Teled yne DALSA reserves the right to make
changes to this information without notice. Reproduction of this manual in whole or in part, by any
means, is prohibited without prior permission having been obtained from Teledyne DALSA.

About Teledyne Technologies and Teledyne DALSA, Inc.

Teled yne Technologies is a leading provider of sophisticated electronic subsystems, instrumentation and
communication products, engineered systems, aerospace engines, and energy and power generation

system s. Teled y n e Technologies’ op er atio ns are p rimarily locat ed in the United States, th e Un it ed
Kingd om a nd Mexico. For m or e info rmat ion, v isit Teled y n e Techno log ies’ website at w w w .teled y n e.com.

Teled yne DALSA, a Teledyne Technologies company, is an international leader in high performance
digital imaging and semiconductors with approximately 1,000 employees worldwide, headquartered in
Waterloo, Ontario, Canada. Established in 1980, the company designs, develops, manufactures and
markets digital imaging prod ucts and solutions, in ad dition to providing MEMS products and services.
For m ore informat ion, visit Teled y ne DALSA’s website at w w w .teled y n ed alsa.com .

Support

For further information not included in this manual, or fo r informat ion o n Teled yne DALSA’s ext en sive
line of image sensing prod ucts, please contact:

Camera Link is a trademark registered by the Automated Imaging Association, as chair of a committee of
industry members including Teledyne DALSA.

03-032-00493-14 Teledyne DALSA

3 Piranha 2 User’s Manual

Contents

Introduction to the Piranha 2 Line Scan Camera __________________________________ 5

1.1 Camera Highlights ....................................................................................................................................................... 5

1.2 Image Sensors ............................................................................................................................................................. 7

1.3 Camera Performance Specifications ............................................................................................................................ 8

Camera Hardware Interface ________________________________________________ 13

2.1 Installation Overview ................................................................................................................................................... 13

2.2 Input / Output .............................................................................................................................................................. 13

2.3 Connectors, Pinouts, and Cables .................................................................................................................................. 14

2.4 Power Supplies ............................................................................................................................................................ 16

2.5 Control Inputs, Camera Link ........................................................................................................................................ 16

2.6 Data Bus, Camera Link ................................................................................................................................................ 17

2.7 Timing ......................................................................................................................................................................... 19

2.8 Camera Link Serial Communication ............................................................................................................................ 22

Software Interface: How to Control the Camera __________________________________ 23

3.1 Overview ...................................................................................................................................................................... 23

3.2 Command Format ........................................................................................................................................................ 23

3.3 Processing Chain .......................................................................................................................................................... 24

3.4 Startup ......................................................................................................................................................................... 25

3.5 Saving and Restoring Settings ..................................................................................................................................... 25

3.6 Setting Baud Rate ........................................................................................................................................................ 26

3.7 Setting the Data Mode ................................................................................................................................................. 26

3.8 Setting the Video Mode ............................................................................................................................................... 27

3.9 Setting Line Rate and Exposure Mode ......................................................................................................................... 27

3.10 Setting a Region of Interest ....................................................................................................................................... 29

3.11 Returning Video Information .................................................................................................................................... 29

3.12 Optimizing Offset Performance ................................................................................................................................. 31

3.13 Setting Gains ............................................................................................................................................................. 34

3.14 How to Calibrate the Camera .................................................................................................................................... 35

3.15 Setting and Reading FPN Coefficients ....................................................................................................................... 38

3.16 Setting and Reading PRNU Coefficients .................................................................................................................... 39

3.17 Generating Test Patterns ........................................................................................................................................... 39

3.18 Monitoring the Camera ............................................................................................................................................. 40

3.19 Rebooting the Camera ............................................................................................................................................... 41

3.20 Setting the Pre-trigger .............................................................................................................................................. 41

Optical, Mechanical, and Thermal Considerations _________________________________ 43

4.1 Mechanical Interface .................................................................................................................................................... 43

4.2 Optical Interface .......................................................................................................................................................... 47

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4 Piranha 2 User’s Manual

4.3 Compliance .................................................................................................................................................................. 49

CCD Handling Instructions _________________________________________________ 51

5.1 Electrostatic Discharge and the CCD Sensor ................................................................................................................ 51

5.2 Protecting Against Dust, Oil and Scratches .................................................................................................................. 51

5.3 Cleaning the Sensor Window ....................................................................................................................................... 52

Troubleshooting ________________________________________________________ 53

6.1 Common Solutions ....................................................................................................................................................... 53

6.2 Troubleshooting Using the Serial Interface ................................................................................................................. 54

6.3 Specific Solutions ......................................................................................................................................................... 55

Camera Link™ Reference _________________________________________________ 59

EMC Declaration of Conformity ______________________________________________ 61

Communications Protocol _________________________________________________ 63

C1 Protocol Overview ......................................................................................................................................................... 63

C2 Protocol Features .......................................................................................................................................................... 63

C3 Command Format and Examples ................................................................................................................................. 63

C4 Networking Mode ......................................................................................................................................................... 64

C5 Error Handling .............................................................................................................................................................. 67

C6 Camera Parameter Screen ........................................................................................................................................... 70

C7 Commands .................................................................................................................................................................... 73

DC Offset De-rating Curve _________________________________________________ 79

Revision History ________________________________________________________ 81

Index _______________________________________________________________ 85

03-032-00493-14 Teledyne DALSA

5 Piranha 2 User’s Manual

1

Introduction to the
Piranha 2 Line Scan
Camera

1.1 Camera Highlights

Features

• Data rates up to 160MHz

• Resolutions from 1k to 8k for 40MH z model

• Resolutions from 1k to 8k for 30MHz model

• High responsivity

• Exposure control and antiblooming

• Pinned photodiode sensor for low image lag

• Programmable integration time, line rate, gain, offset, bit depth, test pattern, and

diagnostics

• Flat-field correction—minimizes sensor FPN and PRNU, lens vignetting and non­uniform lighting

• Cam era Link™ interface

• Single 12V to 15V power supply

• Compact design

Performance

• 4x40MHz quad output data rate, 2x40MHz dual output data rate with 40MHz model

• 2x30MHz dual output data rate with 30MHz model

• 8 or 10-bit output from 10-bit digitization

• 1024, 2048, and 4096 pixels, 10µm x 10µm, and 4096, 6144 and 8192 pixels, 7m x

7m, 100% fill factor

• Line rates up to 65kHz

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6 Piranha 2 User’s Manual

Programmability

• Simple ASCII protocol controls gain, offset, line rates, trigger mode, pixel correction,
test pattern output, and camera diagnostics.

• Serial interface (ASCII, 9600 baud, adjustable to 19200, 57600, 115200), through
Camera Link.

Usability

• Programmable gains, offsets, and camera controls

• End-of-line sequence and test pattern output for debugging

• Single input supply (+12V to +15V)

• Compliant with CE and MIL-STD-810E (shock and vibration)

Description

Piranha 2 takes performance to a new level. Two and four 8 or 10-bit outputs (selectable)
at up to 40MH z deliver up to 160MHz throughput.

Available in 1k to 8k resolutions, Piranha 2 is small, light, and uses a single voltage power
supply. Cabling and interface are simplified with the Camera Link high -speed serial
standard. The camera is sensitive, but still provides quiet, uniform output thanks to CDS
(correlated double sampling) and embedded flat-field correction algorithms. Gain and
offset are fully programmable for each output channel, and the camera can output test
patterns for cable/ system troubleshooting. All resolutions provide appropriate, readily ­available standard lens options (C-mount, F-mount, and M72x0.75 large format
photography standards).

All these features combine to make Piranha 2 the most powerful line scan camera in the
world. Set it loose on your toughest imaging challenge.

Applications

The Piranha 2 is ideal for applications requiring high speed, su perior image quality, and
high responsivity.

Applications include:

 Electronics manufacturing inspection
 Postal/ parcel sorting
 High performance document scanning/ image lift
 Narrow and large web inspection
 High-end industrial inspection

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7 Piranha 2 User’s Manual

N Pinned Photodiodes (10µm x 10µm)4 I32 S 4 I 32 S

CCD Readout Shift Register

CCD Readout Shift Register

5 I

5 I

4 I

4 I

TCK

PR

VPR

VSTOR

CR1S, CR2S,

CR1B, CR2B, CRLAST

CR1S, CR2S,

CR1B, CR2B, CRLAST

VSET

VBB

RST

VOD

VSS

VDD

OS1

32 S

4 I

Light-shielded pixels

N = 1024 or 2048

Isolation pixels

OS2

Storage Well with Exposure Control and Reset Structure

Storage Well with Exposure Control and Reset Structure

Relative position of package Pin 1

1

Relative position
of package Pin 1

1

N=2048 or 4096

1.2 Image Sensors

The im age sen sor u sed in your camer a d ep end s on th e cam era’s resolu tion and nu m ber of

taps.
1k, 2k, 4k (10 µm), 2 taps: IL-P1 (Figure 1)
2k, 4k (10 µm), 4 taps: IT-P1 (Figure 2)
4k (7 µm), 6k, 8k, 2 taps: IL-P4 (Figure 3)
4k (7 µm), 6k, 8k, 4 taps: IT-P4 (Figure 4)

Figure 1: IL-P1 Image Sensor (1k, 2k, 4k (10 µm), 2 tap models)

Figure 2: IT-P1 4k Image Sensor (2k, 4k (10 µm), 4 tap models)

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8 Piranha 2 User’s Manual

N Pinned Photodiodes (7µm x 7µm)4 I32 S 4 I 32 S

CCD Readout Shift Register

CCD Readout Shift Register

5 I

5 I

4 I

4 I

TCK

PR

VPR

VSTOR

CR1, CR2, CRLAST

CR1, CR2, CRLAST

VSET

VBB

RST

VOD

VSS

VDD

OS1

32 S

4 I

Light-shielded pixels

N = 4096, 6144 or 8192

Isolation pixels

OS2

Storage Well with Exposure Control and Reset Structure

Storage Well with Exposure Control and Reset Structure

Relative position of package Pin 1

1

N Pinned Photodiodes (7µm x 7µm)4 I32 S 4 I 32 S

Storage Well with Exposure Control and Reset Structure

Storage Well with Exposure Control and Reset Structure

CCD Readout Shift Register

CCD Readout Shift Register

5 I

5 I

5 I

5 I

OS4

TCK

PR

VPR

VSTOR

CR1, CR2,
CRLAST-L

CR1, CR2,
CRLAST-L

CR1, CR2,
CRLAST-R

CR1, CR2,
CRLAST-R

32 S

4 I

Light-shielded pixels

N = 4096, 6144 or 8192

Isolation pixels

VSET-R

VBB

RST-R

VOD-R

VSS-R

VDD

OS3

VSET-L

VBB

RST-L

VOD-L

VSS-L

VDD

OS1

OS2

Relative position
of package Pin 1

1

Figure 3: IL-P4 Image Sensor (4k (7µm), 6k, and 8k, 2 tap models)

Figure 4. IT-P4 Image Sensor (4k (7µm), 6k, and 8k, 4 tap models)

1.3 Camera Performance Specifications

The follow in g tw o tables list th e cam era’s per form ance sp ecification s. The first table lists

the operating ranges of the camera, and the second table lists the performance
specifications at minimum, nominal and maximum gain levels at 1kHz data rate. Note
that as gain levels increase, performance decreases, because your signal to noise
decreases.

Also note that the cameras performance specifications were obtained using a line rate of
only 1kHz. At low line rates, dark current can become a significant source of noise and
appears in specifications such as FPN, PRNU and noise. If you operate the camera at

03-032-00493-14 Teledyne DALSA

faster line rates, such as 10kHz or greater, the amount of dark current will be reduced by
10x or greater.

9 Piranha 2 User’s Manual

Operating Requirements

Units

Typical

Notes

Power

1024—2 o/ p

W 6

2048—2 / 4 o/ p

W

6 / 8.5

4096 (7µm)—2 / 4 o/ p

W

6 / 8.5

4096 (10µm)—2 o/ p

W

7.5

4096 (10µm)—4 o/ p

W

9.6 6144—2 / 4 o/ p

W

7.5 / 9.6

8192 —2 / 4 o/ p

W

7.5 / 10

Power Supply Current (Vin = +12V)

1024—2 o/ p

mA

480

2048—2 / 4 o/ p

mA

500 / 700

4096—2 / 4 o/ p

mA

500 / 700

4096 (10µm)—2 o/ p

mA

600

4096 (10µm)—4 o/ p

mA

800

6144—2 / 4 o/ p

mA

600 / 800

8192 —2 / 4 o/ p

mA

620 / 840
Time to power up, typ

sec.

15

Time to calibrate (FPN/ PRNU)

1024

sec.

10

2048

sec.

19

4096

sec.

38 6144

sec.

85

8192

sec.

115

Specification

Units

Min

Max

Notes

Data Rate, per tap (40 MHz model)

MHz

40

40

(30 MHz model)

MHz

30

30

1

Specification

Units

Min

Max
30 MHz

Max
40
MHz

Line Rate

1024, 2 o/ p

kHz 1 49.6

65.3

1

2048, 2 o/ p

kHz 1 27

35.4

1

2048, 4 o/ p

kHz 1

68

1

4096, 2 o/ p

kHz 1 14

18.5

1

4096, 4 o/ p

kHz 1

36.2

6144, 2 o/ p

kHz 1

12.3 6144, 4 o/ p

kHz 1

24.4

8192, 2 o/ p

kHz 1 7.15

9.3

8192, 4 o/ p

kHz 1

18.6

Temperature

Front plate Temperature

°C

10

50

2

Temperature drift before
recalibration (recommendation)

°C 10
Sensor Alignment

Table 1. Piranha 2 Operating Requirements and Ranges

03-032-00493-14 Teledyne DALSA

10 Piranha 2 User’s Manual

Specification

Units

Min

Max

Notes

x,y

um ±175

z

mm ±0.25

z

° ±0.6

Note that the environment conditions represent the state of the environment when the
camera w as being tested. Typical results are the average values obtained with at a 1kHz
line rate and 30°C. Maximum results represent the worst case results from any camera
operating at 50°C with a 1kHz line rate.

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11 Piranha 2 User’s Manual

Environment Conditions

Units

Min

Typ

Max

Min

Typ

Max

Min

Typ

Max

Notes

Data Rate (40MHz model)

MHz

40

40

40

40

40

40

40

40

40 Line Rate

kHz 1 1 1 1 1 1

Gain Setting

dB

-10

-10

-10 0 0 0 +10

+10

+10
Front Plate Temperature

°C 30

50 30

50 30

50

3

Electro-Optic Specifications

Units

Min

Typ

Max

Min

Typ

Max

Min

Typ

Max

Notes

Broadband Responsivity, 7um pixels

DN/ (nJ/ cm2)

3

3.4

3.8

9.4

10.7

12

30

34

38

Broadband Responsivity, 10um pixels

DN/ (nJ/ cm2)

6

6.8

7.6

18.8

21.4

24

60

68

76

Dynamic Range

Ratio

496:1

207:1

390:1

62:1

135:1

Pk-Pk Noise, max

DN 2 3 4 8 15

32

4

RMS Noise, max

DN 0.5

0.5 0.75

1.2 2.2 4 4

FPN uncorrected, max 4K and under

DN 1.1 4

3.5 8 8 27

5

FPN uncorrected, max 6K and over

DN 1.6 4 4 8 14

27

5

FPN corrected, max

DN 0.3 2 1 2 2 8 2

PRNU uncorrected

1K and 2K, ECD/ ECE

DN 5

18 5

23 8/ 10

39

4k, ECD/ ECE

DN 9

28 10

28 12/ 20 43

6K and 8K, ECD/ ECE

DN 15

38 16

38 14/ 27 55 PRNU corrected ECD/ ECE

DN 1.5
/ 2

3 / 3

1.2/

1.5 3/8

2/ 3.5 5/
27

2
DC Offset

DN

4k and under

2 3 5 5 7

17 6 6k and over

2 3 5 5 14

17

6

Table 2. Piranha2 Performance Specifications, 1kHz line rate, 40MHz Model

Min. Gain Nom. Gain Max. Gain

Notes:

DN = Digital Numbers (0-255); also known as gray levels.
ECE = Exposure Control Enabled
ECD = Exposure Control Disabled

• All measurements taken in 8-bit output mode.

• All measurements are valid for front plate temperatures in still air.

• All measurements used a Tungsten halogen light source, 3200K bulb temp., and

750nm cutoff filter

1. All specifications for the 30MHz model are preliminary.

2 Due to FPN/ PRNU correction calculations, certain digital numbers will be

unavailable when outputting 10 bits with FPN/ PRNU correction.

3 Measured at front plate. The corresponding ambient temperature range with still air

is 0°C - 37°C.

4 Measurements taken at maximum line rates.
5 Exposure control enabled to set the maximum integration time to 200 microseconds.

6. Refer to Appendix D for DC Offset de-rating curves.

03-032-00493-14 Teledyne DALSA

12 Piranha 2 User’s Manual

R

e

s

p

o

n

s

i

v

i

t

y

[

D

N

/

(

n

J

/

c

m

)

]

2

Wavelength (nm)

10µm pixels

7µm pixels

0

4

1000

800600400 500 700 900

8

12

20

24

16

Responsivity, Nominal Gain

Figure 5: P2 Responsivity

03-032-00493-14 Teledyne DALSA

13 Piranha 2 User’s Manual

!

+12V to +15V and Ground

CameraLin

k™(2and4Tapmodels

)

CameraLin

k™(4Tapmodelonly)

Diagnostic LED (See section 3.18)

2

Camera Hardware
Interface

2.1 Installation Overview

In order to set up your camera, you should take these steps:

1. Connect Cam era Link™ cables from ca m era to fram e grabber.

2. Connect power.

You must also set up the other components of your system, including light sources, frame
grabbers, camera mounts, heat sinks, host computers, optics, encoders, and so on.

2.2 Input / Output

WARNING: It is extremely important that you apply the appropriate voltages to your
camera. Incorrect voltages will damage the camera. See section 2.4 for more details.

03-032-00493-14 Teledyne DALSA

14 Piranha 2 User’s Manual

Medium and Full Configurations
Up to an additional 2 Channel Link Chips

Camera
Connector

Right Angle
Frame
Grabber

Channel
Link Signal

Cable Name

1 1 inner shield

Inner Shield

14

14

inner shield

Inner Shield

2

25

Y0-

PAIR1-

15

12

Y0+

PAIR1+

3

24

Y1-

PAIR2-

16

11

Y1+

PAIR2+

4

23

Y2-

PAIR3-

17

10

Y2+

PAIR3+

5

22

Yclk-

PAIR4-

18 9 Yclk+

PAIR4+

6

21

Y3-

PAIR5-

19 8 Y3+

PAIR5+

7

20

100 ohm

PAIR6+

20 7 terminated

PAIR6-

8

19

Z0-

PAIR7-

21 6 Z0+

PAIR7+

9

18

Z1-

PAIR8-

22 5 Z1+

PAIR8+

10

17

Z2-

PAIR9+

23 4 Z2+

PAIR9-

11

16

Zclk-

PAIR10-

24 3 Zclk+

PAIR10+

12

15

Z3-

PAIR11+

25 2 Z3+

PAIR11-

13

13

inner shield

Inner Shield

26

26

inner shield

Inner Shield

Base, Medium, and Full Configuration

Medium and Full Configuration Only

MDR26 Female

1

14

13

26

Mating Part

: 3M 334-31 series

Cable:

3M 14X26-SZLB-XXX-0LC

**

2.3 Connectors, Pinouts, and Cables

The camera uses a high-density 26-pin MDR26 connector for Camera Link control signals,
data signals, and serial communications, and a 6-pin Hirose connector for power.

Table 3: Camera Link Medium and Full Configuration

*Exterior Overshield is connected to the shells of the connectors on both ends.
**3M part 14X26-SZLB-XXX-0LC is a complete cable assembly, including connectors.

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15 Piranha 2 User’s Manual

Base Configuration
One Channel Link Chip + Camera Control +Serial
Communication

Camera Connector

Right Angle
Frame Grabber

Channel Link
Signal

1 1 inner shield

14

14

inner shield

2

25

X0-

15

12

X0+ 3 24

X1-

16

11

X1+ 4 23

X2-

17

10

X2+ 5 22

Xclk-

18 9 Xclk+

6

21

X3-

19 8 X3+ 7 20

SerTC+

20 7 SerTC-

8

19

SerTFG-

21 6 SerTFG+

9

18

CC1-

22 5 CC1+

10

17

CC2+

23 4 CC2-

11

16

CC3-

24 3 CC3+

12

15

CC4+

25 2 CC4-

13

13

inner shield

26

26

inner shield

Signal

Configuration

Pin

CC1

EXSYNC

9, 22

CC2

PRIN

10, 23

CC3

Spare

11, 24

CC4

Spare

12, 25

Table 4: Camera Link Base Configuration

Unused pairs should be terminated in 100 ohms at both ends of the cable.

Table 5: Camera Control Configuration

See Appendix B for the complete Camera Link configuration table, and refer to the
Knowledge Center page on the Teledyne DALSA Web site
(www.teledynedalsa.com/ mv/ knowledge/ appnotes.aspx) for the official Camera Link
documents.

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16 Piranha 2 User’s Manual

!

Hirose 6-pin Circular Male

5

4

6

2

3

1

Mating Part: HIROSE

HR10A-7P-6S

Pin

Description

Pin

Description

1

+12V to +15V

4

GND

2

+12V to +15V

5

GND

3

+12V to +15V

6

GND

PRIN

Indicates

High

Integration

Low

Pixel reset

IMPORTANT:
This camera uses the
falling edge of EXSYNC
to trigger line readout,
unlike previous DALSA
cameras, which used the
rising edge.

2.4 Power Supplies

The camera requires a single voltage input (+12V to +15V). The camera meets all
performance specifications using standard switching power supplies, although well­regulated linear supplies provide optimum performance. See the Performance
Specifications for current requirements.

When setting u p the cam era’s pow er su p p lies follow th ese gu id elin es:

• Protect the camera with a fast-blow fuse between power supply and camera.

• Do not use the shield on a multi-conductor cable for grou nd.

• Keep leads as short as possible to reduce voltage drop.

See section 1.3 for power requirements.

WARNING: It is extremely important that you apply the appropriate voltages to your camera.
Incorrect voltages will damage the camera. Protect the camera with a fast-blow fuse between
power supply and camera.

Visit http:/ / vfm.dalsa.com for a list of companies that make power supplies that meet

th e camer a’s requ ir em ents. Th e com pan ies listed sh ou ld n ot be consid ered th e on ly

choices. Many high quality supplies are available from other vendors. We assume no
responsibility for the use of these supplies.

2.5 Control Inputs, Camera Link

The camera accepts control inputs through the Camera Link MDR26F connector.

All inputs are optional. The camera ships in exposure mode 2 and with a 5 kHz line rate. All
Camera Control (CCx) signals are in a logic HIGH state.

Line rate can be set internally using the serial interface. Power-on rate is alw ays 9600
baud. Data rate for the 40MHz model is always 40MHz. Data rate for the 30MHz model is
always 30MHz.

The external control signals, EXSYNC and PRIN, are optional and enabled through the
serial interface.

PRIN

PRIN is an optional input signal used for exposure control (PRIN).

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17 Piranha 2 User’s Manual

Clocking Signal

Indicates

LVAL (high)

Outputting valid line

DVAL (high)

Valid data

STROBE (rising edge)

Valid data

EXSYNC (Triggers Line Readout)

EXSYNC is an optional input signal that can be used to trigger the line readout rate. This
camera u ses the falling edge of EXSYNC to trigger line readout.

Note: EXSYNC sh ou ld n ot be clocked fast er t h an the cam era’s specified m axim um line

rate. The camera ignores the EXSYNC pulse until it has completed reading the last line
out.

2.6 Data Bus, Camera Link

These signals indicate when data is valid, allowing you to clock the data from the camera
to your acquisition system. These signals are part of the Camera Link configuration and
you should refer to the Camera Link Implem entation Road Map, available from the
Knowledge Center page on the Teledyne DALSA website
(www.teledynedalsa.com/ mv/ knowledge/ appnotes.aspx) for the standard location of
these signals:

IMPORTANT: This cam era’s d ata sh ould be sampled on the rising edge of STROBE.

Digital Data

The camera digitizes internally to 10 bits and outputs either all 10 bits or the most
significant 8 bits in LVDS format on the Camera Link connector.

Note: Due to flat-field correction calculations, certain digital numbers will be unavailable

when outputting 10 bits with flat-field correction enabled (i.e. you will experience
missing codes).

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Location

Value

Description

1

A’s

By ensuring these values consistently toggle
between "aa" and "55", you can verify cabling
(i.e. no stuck bits)

2

5’s 3 A’s

4

4 bit counter LSB justified

Counter increments by 1. Use this value to
verify that every line is output

5

Line sum LSB

Use these values to help calculate line
average

6

Line sum MID

7

Line sum MSB

8 0 9 Pixels above threshold LSB

Monitor these values (either above or below
threshold) and adjust camera gain to keep
these values relatively constant. This
provides a basis for automatic gain control
(AGC)

10

Pixels above threshold
MSB

11

Pixels below threshold LSB

12

Pixels below threshold
MSB

13

Derivative line sum LSB

Use these values to focus the camera.
Generally, the greater the sum the greater the
image contrast

14

Derivative line sum Mid

15

Derivative line sum MSB

16 0

For information
on the test pattern
and end of line
sequence
commands, see
section 3.17
Generating Test
Patterns.

Test Pattern Pixels and End-of-line Sequence

To facilitate system-level debugging and verification of data path integrity, the camera
can generate a test pattern. The test pattern is a ramp from 0 to 255DN, then starts at 0
again. Use the test pattern to verify the proper timing and connections between the
camera and the frame grabber.

To alleviate post-processing, Piranha 2 offers an end-of-line sequence that provides basic
calculations including "line counter", "line average", "pixels above threshold", "pixels
below threshold", and "derivative line sum". These basic calculations are the center of
most automatic gain control (AGC) algorithms.

To further aid in debugging and cable/ data path integrity, the first six bits of the output
of the end-of-line sequence are "aa", "55", "aa". Refer to the table below.

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2.7 Timing

Figure 6. Piranha 2 Overview Timing Showing Input and Output Relationships

Figure 7. Piranha 2 Fixed (Programmed) Integration Timing with External EXSYNC

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Symbol

Definition

Min (ns)

Typ
(ns)

Max
(ns)

twSYNC

The minimum low width of the EXSYNC
pulse when not in SMART EXSYNC
mod e.

100

twSYNC

(SMART)

*

The minimum low width of the EXSYNC
pulse when in SMART EXSYNC modes to
guarantee the photosites are reset.

2,000

twSYNC_INT

The minimum width of the high pulse

w h en th e ―SMART EXSYNC‖ featu r e is

turned off

100

twSYNC_INT

(SMART)

*

Is the in teg r atio n tim e w h en th e ―SMART
EXSYNC‖ featu r e is a vailable an d tu rn ed

on. Note that the minimum time is
necessary to guarantee proper operation.

2,000

tLINE PERIOD
(t LP)

The minimum and maximum line times
mad e up of tTransfer, tREADOUT plus
tOVERHEAD to meet specifications.

53,190 (8K4T)
106,382 (8K2T)
40,485 (6K4T)
80,645 (6K2T)

27,624 (4K4T)
54,054 (4K2T)
28,248 (2K2T)
15,313 (1K2T)

106

tTransfer

The time from the reception of the falling
edge of EXSYNC to the rising edge of
LVAL when pretrigger is set to zero.
Pretrigger reduces the number of clocks to

th e risin g edge of LVAL b u t d oesn’t

change the time to the first valid pixel. If
the fixed integration time mode of
operation is available and selected then
the integration time is added to the
specified value.

1,420 +/ -50

twFixed Int.

Fixed Integration Time mode of operation
for variable exsync frequency.

800 t

LP

–

2,000

tREADOUT

Is the number of pixels per tap times the
read out clock period. Pretrigger = 0.

51,200 (8K4T)
102,400 (8K2T)
38,400 (6K4T)

76,800 (6K2T)
25, 600 (4K4T)
51,200 (4K2T)
25,600 (2K2T)
12,800 (1K2T)

tOVERHEAD

Is the number of pixels that must elapse
after the falling edge of LVAL before the
EXSYNC signal can be asserted. This time
is used to clamp the internal analog
electronics

540+/ -50

thPR

Applies when the PRIN exposure control
feature is enabled . The PRIN signal must
be held a minimum time after the
EXSYNC falling edge to avoid losing the
integrated charge

0

twPR_LOW

Minimum Low time to assure complete

2,000 +/ - 200

Table 6: Piranha 2 40MHz Timing (Fixed Integration Mode)

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Symbol

Definition

Min (ns)

Typ
(ns)

Max
(ns)

photosite reset

tPR_SET

The nominal time that the photo sites are
integrating. Clock synchronization will
lead to integration time jitter, which is
shown in the specification as +/ - values.
The user should command times greater
than these to ensure proper charge
transfer from the photosites. Failure to
meet this requirement may result in
blooming in the Horizontal Shift Register.

2,000+/ -200

Symbol

Definition

Min (ns)

Typ
(ns)

Max
(ns)

twSYNC

The minimum low width of the EXSYNC
pulse when not in SMART EXSYNC
mod e.

132

twSYNC

(SMART)

*

The minimum low width of the EXSYNC
pulse when in SMART EXSYNC modes to
guarantee the photosites are reset.

2,640

twSYNC_INT

The minimum width of the high pulse

w h en th e ―SMART EXSYNC‖ featu r e is

turned off

132

twSYNC_INT

(SMART)

*

Is the in teg r atio n tim e w h en th e ―SMART
EXSYNC‖ featu r e is a vailable an d tu rn ed

on. Note that the minimum time is
necessary to guarantee proper operation.

2,000

tLINE PERIOD
(t LP)

The minimum and maximum line times
mad e up of tTransfer, tREADOUT plus
tOVERHEAD to meet specifications.

140487 (8K2T)
70,170 (4K2T)
36,378 (2K2T)
19,483 (1K2T)

106

tTransfer

The time from the reception of the falling
edge of EXSYNC to the rising edge of
LVAL when pretrigger is set to zero.
Pretrigger reduces the number of clocks to

th e risin g edge of LVAL b u t d oesn’t

change the time to the first valid pixel. If
the fixed integration time mode of
operation is available and selected then
the integration time is added to the
specified value.

1,874 +/ -66

twFixed Int.

Fixed Integration Time mode of operation
for variable exsync frequency.

800 t

LP

–

2,000

tREADOUT

Is the number of pixels per tap times the
read out clock period. Pretrigger = 0.

138033 (8K2T)
33, 792 (4K4T)
67,584 (4K2T)
33,792 (2K2T)
16,896 (1K2T)

*SMART EXSYNC refers to exposure mode 4. Refer to section 3.9 Setting Line Rate and
Exposure Mode for further information on exposure modes.

Table 7: Piranha 2 30MHz Timing (Fixed Integration Mode)

Note: All values are preliminary for the Piranha 2 30MHz

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22 Piranha 2 User’s Manual

Symbol

Definition

Min (ns)

Typ
(ns)

Max
(ns)

tOVERHEAD

Is the number of pixels that must elapse
after the falling edge of LVAL before the
EXSYNC signal can be asserted. This time
is used to clamp the internal analog
electronics

712+/ -66

thPR

Applies when the PRIN exposure control
feature is enabled . The PRIN signal must
be held a minimum time after the
EXSYNC falling edge to avoid losing the
integrated charge

0

twPR_LOW

Minimum Low time to assure complete
photosite reset

2,640 +/ - 264

tPR_SET

The nominal time that the photo sites are
integrating. Clock synchronization will
lead to integration time jitter, which is
shown in the specification as +/ - values.
The user should command times greater
than these to ensure proper charge
transfer from the photosites. Failure to
meet this requirement may result in
blooming in the Horizontal Shift Register.

2,640+/ -264

2.8 Camera Link Serial Communication

Camera featu res can be con trolled th rou gh the Camera Lin k™ serial comm u nication
(LVDS, 9600 baud). The serial interface uses simple ASCII-based protocol. The following
chapter describes how to configure the camera using the serial interface.

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23 Piranha 2 User’s Manual

i

This chapter details the
most commonly used
commands. See
Appendix C for the
complete syntax and
command reference for

the camera’s serial

interface.

3

Software Interface:
How to Control the
Camera

3.1 Overview

All camera features can be controlled through the serial interface. The camera can also be
used without the serial interface after it has been set up correctly. Functions available
include:

• Controlling basic camera functions such as gain and sync signal source

• Camera calibration

• Measuring internal temperature and voltages

• Capturing video

• Generating a test pattern for debugging

The serial interface uses a simple ASCII-based protocol. The complete protocol is
described in Appendix C, Communications Protocol.

Online Help

For quick help, the camera can return all available commands and parameters through
the serial interface. To generate this list, send the command h to the camera.

Retrieving Camera Settings

To read current camera settings, send the command gcp. For an explanation of the
camera parameter screen, see section C6 Camera Parameter Screen on page 70.

3.2 Command Format

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• A carriage return (CR) end s each command.

• Values in square brackets are optional.

24 Piranha 2 User’s Manual

Digital Processing

• There are two methods for entering the command s: In long form each command is
written in its entirety. In short form, only a predefined abbreviation is required. The
manual uses the short form.

• The camera will answer each command with either "OK >" or "Error x: Error Message
>". The ">" is always the last character sent by the camera.

• The following parameters are used in the manual:

i = integer
f = float
s = string
t = tap
x1, x2 = pixel start and stop values

3.3 Processing Chain

The figure below is a simplified block diagram of the camera's processing chain. The
analog processing chain contains two elements–a gain stage and an offset stage. The
digital processing chain contains the FPN correction, PRNU correction, background
subtract, and a system gain stage. The software command s allow you to set and change
all the elements of the processing chain. This enables maximum processing flexibility
depending on your requirements.

In addition, the two elements of the analog processing chain, analog gain and analog
offset, can be adjusted to separate values in the calibrated and uncalibrated modes. For
example, the analog gain value can be set to –5db in calibrated mode and 6dB in
uncalibrated mode. When switching between calibrated and uncalibrated modes, the
camera automatically uses the corresponding value.

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25 Piranha 2 User’s Manual

write / restore
restore

Current

Session

Factory Settings

User Settings /

EEROM

3.4 Startup

When the camera is first started, it must perform several actions before it is ready for
imaging. This startup routine takes approximately 15 seconds, and follows this sequence:

1. Initializes the camera and all internal hardware.

2. Loads the last settings saved to non-volatile memory, including the last set of video

correction coefficients, if previously saved.

3. Restores user settings if previously saved, otherwise factory settings.

4. Performs a memory test and voltage test and reports an error if any occurred.

After this startup sequence is complete, the camera will return either the prompt "OK>" if
no error occurred, or an error code if a problem has been discovered.

3.5 Saving and Restoring Settings

The camera provides a number of commands for restoring, storing, and saving settings.
 To restore the original factory settings, use the command rfs. The FPN and PRNU

coefficients are reset to 0.

 To save all current settings to EEROM, use the command wus. The camera will

automatically restore the saved user settings when powered up. Note: While settings
are being written to nonvolatile memory, do not power down camera or camera
memory may be corrupted.

 To save all current pixel coefficients to EEROM, use the command wpc.
 To restore the last saved user settings and the FPN and PRNU coefficients, use the

command rus.

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26 Piranha 2 User’s Manual

Syntax:

sbr i

Syntax Elements:

i

Baud rate. Available baud rates are: 9600 (Default), 19200, 57600,
and 115200.

Notes:

 Power-on rate is always 9600 baud.
 The rc (reset camera) command will not reset the camera to the

pow er-on baud rate.

Example:

sbr 57600

Syntax:

sdm i

Syntax Elements:

i

See Table 8: Mode Selection Values below for allowable parameter
values.

Notes:

To obtain the current data mode, use the command gcp.

Example:

sdm 0

Mode

Description

0

8-bit, using A/ B/ C/ D ports for single processor configuration

1

10-bit, using A/ B/ C and D/ E/ F for single processor configuration

2

8-bit using ports A/ B and D/ E for dual processor configuration

3

10-bit, using A/ B/ C and D/ E/ F for dual processor configuration

3.6 Setting Baud Rate

To set the speed of the camera serial communication port, use the command:

3.7 Setting the Data Mode

To select the camera output mode, use the command:

In the table below, ports A-F refer to ports in the Camera Link specification.

Table 8: Mode Selection Values

To obtain the current data mode, use the command gcp.

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