ISUAL Sprite Imager Electronic Design Stewart Harris
Dec 27, 2015
ISUAL Sprite Imager Electronic Design
Stewart Harris
NCKU UCB Tohoku Sprite Imager S. Harris
CDR 9 Jul 2001 2
Outline
• Imager Circuit and Electronics Design• Electronics Design and Fabrication Status
NCKU UCB Tohoku Sprite Imager S. Harris
CDR 9 Jul 2001 3
Imager Electronics Locations
Daylight Sensor
Filter Wheel Motor
MCP HV Supply
Phosphor HV Supply
Front End Electronics
(FEC)
Electrical Board
Filter Wheel Position Sensor
NCKU UCB Tohoku Sprite Imager S. Harris
CDR 9 Jul 2001 4
Imager Electrical Block Diagram
CCD
TEC
Intensifier
Filter Wheel Motor
Filter Wheel
Position Sensor
Day-Light
Sensor
Front End Electronics
Imager Electrical Board
Photocathode Power Supply
Motor Driver
Phosphor HVPS
MCP HVPS
J1
J3J4
J2
Heater and Thermistor Circuits
not shown
StimLED
NCKU UCB Tohoku Sprite Imager S. Harris
CDR 9 Jul 2001 5
Imager Connector Locator
J1Imager
Electrical Board
J4Phosphor
High Voltage
J3MCP High Voltage
J2Front End
Electronics
NCKU UCB Tohoku Sprite Imager S. Harris
CDR 9 Jul 2001 6
Image Intensifier Interface
Imager Electrical Board
J1 - 44 pin
Photocathode Power Supply
Image Intensifier - 25 mm
MCP-Out-1kV
HV Supply
Phosphor (Anode -6kV) HV Supply
GATEFEC Connector
J4 - 9 pin J3 - 9 pin
MCP-In GND
NCKU UCB Tohoku Sprite Imager S. Harris
CDR 9 Jul 2001 7
Imager Electrical Board Functions
• Connections– Thermistors
• TEC hot side
• Lens (front and rear)
• Filter Wheel
• Filter Motor
• Daylight Sensor
• Survival (spacecraft)
– Heater Circuits• Lens (front and rear)
• Filter Wheel
• Survival (spacecraft)
– Thermoelectric Cooler (TEC)• Power controlled from AEP
– Stim Source
• Active Electronics– Photocathode Power Supply
• On/off control
• Gate control from FEC
– Filter Wheel Motor Driver• Stepper motor (2 phases)
• Position indicators (2 bits)
Interface Ref Doc: 8439-A4F
NCKU UCB Tohoku Sprite Imager S. Harris
CDR 9 Jul 2001 8
Motor Controller Schematic
NCKU UCB Tohoku Sprite Imager S. Harris
CDR 9 Jul 2001 9
Photocathode Power Supply
NCKU UCB Tohoku Sprite Imager S. Harris
CDR 9 Jul 2001 10
Daylight Sensor Electronics
• Specifications– Purpose: Control HV Power Supplies
On/Off
– Number of Channels: 2
– Sensor: 2 x UDT PIN-44DPI (per Channel)
– Spectral band: 420 - 780 nm
– Field of View: 2π
– Threshold current: 4 nA (sum of 2 photodiodes) (1E6 photons/pixel/sec on Imager)
– Range of detection: 0.1 to 1000 nA
– Output: 0 to 5V
NCKU UCB Tohoku Sprite Imager S. Harris
CDR 9 Jul 2001 11
Daylight Sensor Schematic
C827nF
+
-
U2B
AD822
5
67
-2V-AA
OUTPUT-A
Iref R1
50M
+5V-AA
R14
20.0K
+
-
U1B
AD8225
67
Q1
MAT02
2
1
3
6
5
7
C4220pF
+5V-AA
1.5V
R37
49.9
R11
20.0K
U3
AD584
8
65
7
4
321
V+
VBGSTB
CAP
CO
M
2.5V5V10
C227nF
D2
PIN-44DPI
12
3
R53.92K
C1227nF
D1
PIN-44DPI
12
3
C6 220pF
R161K @ 25C3500 ppm/C
C7 2.0nF
R1810.0K
R13
15.0K
R85.90K
+5V-AA
+
-
U2A
AD822
3
21
84
R17
10.0K
R3
2.00K
+
-
U1A
AD822
3
21
84
50 nAC127nF
C9
27nF
One Channel Shown Ref schematic: 8798-O9A
NCKU UCB Tohoku Sprite Imager S. Harris
CDR 9 Jul 2001 12
Daylight Sensor Circuit Performance
10-2
10-1
100
101
102
103
104
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5Log Amp Performance -- 2x PIN-44DPI -- 24 May 2001
Current (nA)
Out
put
Vol
tage
(V
)
NCKU UCB Tohoku Sprite Imager S. Harris
CDR 9 Jul 2001 13
Temperature Stability - Daylight Sensor Circuit
-80 -60 -40 -20 0 20 40 602
2.2
2.4
2.6
2.8
3
3.2
Log Amp Temperature Stability -- 21 May 2001
Temperature (deg C)
Out
put
Vol
tage
(V
)
12 nA
5 nA
1.5 nA
NCKU UCB Tohoku Sprite Imager S. Harris
CDR 9 Jul 2001 14
Front End Electronics Interface
• Data[0..11]– 12 bits per pixel
• PixelClock (PIXCLK)
– pixel data strobe
• FrameValid (FRMV)
– indicates duration of frame
• LineValid (LINV)
– indicates duration of line
– used only during test
• Busy (BUSY)
– signals start of EXP
• Acquire (ACQ)
– enables modes
• Event Trigger (ETRIG)
– signals Spite Event
• CommandData (CDI)
– serial data interface for upload of camera parameters
• VoltageMonitor (MON)
– switched analog output
• Power– dc voltages
Images are transferred to the AEP in data frames,each frame is 128 lines x 512 pixels
Interface Ref Doc: 8652-X7A
NCKU UCB Tohoku Sprite Imager S. Harris
CDR 9 Jul 2001 15
VoltageMonitor
Data9Data8Data7Data6Data5Data4Data3Data2
PixelClockFrameValid
Acquire
CommandDataCommandClockCommandStrobe
+5VA+12VA-5VA-12VA+29VAGND+5VDDGND
Reset Gate
Summing Gate
CR1 - Horizontal
CR2 - Horizontal
CR3 - Horizontal
CI1 - ImageArea
CI2 - ImageArea
CI3 - ImageArea
CS1 - Storage
CS2 - Storage
CS3 - Storage
Driver BoardAss'y 8744
RSTC
SUMGC
CR1C
CR2C
CR3C
CI1C
CI2C
CI3C
CS1C
CS2C
CS3C
Ass'y 8748Digital Board
ADCLK
ADSEL
DATE
Analog ProcessorBoard
Ass'y 8747
CRHI (+8.5)
CRLO (+3.5)
RSTHI (+14)
RSTLO (+4)
CISLO (-2.5)
CISHI (+10.5)
CISV+ (+17)
CRV+ (+15.5)
RSTV+ (+19)
CISV- (-3)
VNS (+26) / VPS (+1.5)
VDD (+20) / VOD (+15)
VCS (+2.5) / VSET (+5)
VCSET (-5) / VSS (GND)
CCDTEMP
VNS / VPS / VSS
VDD / VOD
VCS / VSET
CCDTEMP
VPH
IA1
VPH
IA0
Mo n
Sel3
N
Mo n
Sel3
Mo n
Sel2
Mo n
Sel1
Mo n
Sel0
Bias BoardAss'y 8746
Out
A
Out
B
ToAll
Boards
CCD BoardIA-D4
ImageIntensifier
Phosphor HVPS
MCP HVPSMCPAdjust
Photocathode PS
CI4 - ImageArea
CS4 - Storage
Ass'y 8742
CI4C
CS4C
PCGATE
Data0Data1
Data11Data10
+5VP+12VP-12VPCOM
CCD Temp
BusyEventTrig
PowerSupplyBoard
Ass'y 8768
Front End Electronics Block Diagram
J2
NCKU UCB Tohoku Sprite Imager S. Harris
CDR 9 Jul 2001 16
CCD Bias Design
C3810nF
+28VA
+ C511.0uF50V
IN
ADJ
OUT1 3
2
U6LM117H
L7
Bead+12VA
C2527nF
R253.40K
D5
1N5711
+5V
+ C301.0uF35V
R21825
R45499
+ C351.0uF35V
C2610nF
26V
R38
10.0
BVNS
R19
10.0K
Bias BoardSchematic: 8561-O9
BVPS
C4510nF
+ C244.7uF10V
2.5V
R363.40K
+ C541.0uF50V
+C464.7uF
10V
R379.09K
R267.50K
+C374.7uF
10V
Q22N2907A
J71-31
IN
ADJ
OUT1 3
2
U15LM117H
R326.65K
+ C234.7uF10V
+ C521.0uF50V
+ C531.0uF50V
BVCS
R4614.3K
R30
10.0K
L11
Bead
R29
6.65K
BVSET
1.5V
R412.00K
R4728.0K
NCKU UCB Tohoku Sprite Imager S. Harris
CDR 9 Jul 2001 17
Clock Driver Design
IN
ADJ
OUT1 3
2
U7LM117H
CRHI
15.5V
CRLO
Bias Board8561-O9
R1214.3K
C1227nF
L1
Bead
R157.50K
R1
10.0
Q3
2N2907A
C627nF
S1IN1D1
V+ VL
D4IN4
S4
D2IN2
S2
D3IN3
S3
V- GND
U7
DG613
132
13
14
11
7
16
9
86
15
10
4 512
JP1
+ C184.7uF10V
R44.75K
+ C101.0uF35V
CR1
C227nF
C2427nF
+ C52.2uF20V
JP2
3.5V
R582.5K
+ C234.7uF10V
C1100nF
50 V
L4
Bead
Driver Board8560-O9
+ C194.7uF10V
+5VA
+ C11.0uF35V
+5VA
8.5V
+ C32.2uF20V
C2027nF
R1825
CR1C
+ C134.7uF10V
+12VA
+ C112.2uF20V
R104.64K
JP4
JP3
CRV+
+ C194.7uF10V
+ C22.2uF20V
NCKU UCB Tohoku Sprite Imager S. Harris
CDR 9 Jul 2001 18
MUX
Analog Data Chain
Correlated Double Sampling (CDS)
ADC
CCD
Correlated Double Sampling (CDS)
ADC
Preamp/Clamp
Preamp/Clamp
Buffer
RLOAD
Buffer
RLOAD
CCD Board8559-O9
Driver Board
8560-O9
Analog Processor Board8562-O9
RS-422 Drivers
OS1
OS2
NCKU UCB Tohoku Sprite Imager S. Harris
CDR 9 Jul 2001 19
Preamp Design
R21
10.0K
R37
10.0K
-5V-AA
R6
100
R1710.0K
R3110.0
S1IN1D1
V+ VL
D4IN4
S4
D2IN2
S2
D3IN3
S3
V- GND
U4
DG613
132
13
14
11
7
16
9
86
15
104 5
12
HBLANK1
R1610.0K
+
-
U1
HS1135RH
3
265
8
74
R18
1.00K
Q2
2N2857
CCD Board8559-O9
R15
49.9
VDD
R19287
R14
100
C139
100nF100V
R53.01K R7
2.49K
OS1
-5V-AA
FROM CCD
Driver Board8560-O9
C14022pF
J73SMA
+5V-AA
NCKU UCB Tohoku Sprite Imager S. Harris
CDR 9 Jul 2001 20
CDS Design
AD9240
ADC
1Input
Analog Processor Board8562-O9
-5V-AAR5
5.90K
+5V-AA
R7
165
R10182
+
-
U1
HS1135RH
3
265
8
74
R6
475
R4
40.2
R3
475
R3049.9
L150 ns
1 2
3
J83SMA R8
SAT
-5V-AA
NCKU UCB Tohoku Sprite Imager S. Harris
CDR 9 Jul 2001 21
Digital Control
CPCLK
M8
M5
RMS1
CSTB
CR1CN
R43 10.0K
ETRIG
CCLK
CI1CN
CR2CN
CI3CN
M12
MCLK
CS2CN
POR
RVPH
IA0
FRMV
RDAT
E
PIXCLK
CI4CN
U1
A1280FP
12345678910111213141516171819202122232425262728293031323334353637383940414243
44454647484950515253545556575859606162636465666768697071727374757677787980818283848586
87888990919293949596979899
100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
MODEI/OI/OI/OI/OI/O
GNDI/OI/OI/OI/O
VCCI/OI/OI/OI/O
GNDI/OI/OI/OI/O
GNDVCC
VSV (VCC)I/OI/O
VCCI/OI/OI/OI/O
GNDI/OI/OI/OI/O
GNDI/OI/OI/OI/OI/OI/O
I/OI/OI/OI/OI/OI/OV
CCI/OI/OI/OI/O
GN
DI/OI/OI/OI/OI/OI/OI/OI/OI/OG
ND
VC
CI/OI/OI/OI/OI/OI/OI/OI/OG
NDI/OI/OI/OI/O
VC
CI/OI/OI/OI/OI/OI/O
I/OI/OI/OI/OI/OI/OI/OI/OI/OI/OI/OGNDI/OI/OI/OI/OGNDI/OI/OVKS (GND)VPP (VCC)GNDVCCVSV (VCC)I/OI/OVCCI/OI/OI/OI/OGNDI/OI/OI/OI/OGNDI/OI/OI/OI/OI/OI/O
I/O SD
II/O I/O I/O I/O V
CC
I/O I/O I/O I/O GN
DI/O I/O I/O I/O I/O I/O P
RA
I/O CLK
AV
CC
GN
DI/O C
LKB
I/O PR
BI/O I/O I/O I/O G
ND
I/O I/O I/O I/O VC
CI/O I/O I/O I/O D
CLK
I/O
HBLA
NK1N
LINVN
RMS3
N
+5VDF
CI2CN
M6
PSCL
K2
HBLA
NK2N
CS1CN
+5VD
CDAT
M4
Digital Board8563-O9
CS4CN
M7
RMS3
RMS0
M2
BUSY
ACQ
M3
RMS2
M1 PCGATEN
PSLI
MIT
N
CR3CN
U7D
54AC14
98
PSCL
K1
RVPH
IA1
M9
U8
24.0MHz
1
14
7
8
NC
VS
GND
FO
NCKU UCB Tohoku Sprite Imager S. Harris
CDR 9 Jul 2001 22
Power Supply Design
PSCLK-
-12VP
Q8
IRHF7130
D
G
S
Q2
2N2907A
Q52N2222A
2
13
R8
3.48K
R2275.0K
Q6
2N2907A +12VP
PSLIMIT
L4
1 mH
R133.01K
R910.0K
+
C447uF50V
R12
10.0
D5
1N5806
R1775.0K
R2414.3K
-12VA
Q7
IRHF7130
D
G
S
R35.111W
Q11IRHF9130
D
G
S
R2310.0K
R11
10.0
Q92N2222A
2
13
+12VP
R710.0K
Q122N2222A
2
13
R1
5.111W
R141.00K
+ C91.0uF50V
C247pF
D1
1N4148
Q102N2907A
+12VP
Q4
IRHF9130D
GS
T11 4
2 3
R614.3K
L2
1 mH
+ C147uF50V
Q1
2N2907A
D2
1N5806
R2118.2K
R183.01K
R155.111W
Power Supply Board8750-O9
D8
1N5806
-12VP
+12VA
R16
5.111WR19
3.01K
+ C847uF50V
Q132N2907A
+28VA
Q3
IRHF9130
D
G
S
+ C333uF75V
D4
1N5806
PSCLK+
R41.00K
D7
1N4148
Q14IRHF7130
D
G
S
R209.09K
+ C547uF50V
R21.00K
D6
1N4148
R10
20.0
L1
1 mH
R5
3.48K
D3
1N5806
NCKU UCB Tohoku Sprite Imager S. Harris
CDR 9 Jul 2001 23
Image Readout Order
CCD array is illustrated showing the order in which pixels are transferred from Imager to AEP
1
2
127
128
Line
1. Each cell represents one pixel
2. Since the CCD is read from two outputs, the image is split in the middle
1 3 509 511
513 515 1021 1023
24510
1024
512
65536
1022 514516
65534 65028 6502665535655336502765025
64513 64515 65021 65023 65024 65022 64516 64514
NCKU UCB Tohoku Sprite Imager S. Harris
CDR 9 Jul 2001 24
Data Transfer Timing
Line Timing
Pixel Timing
Tframe = 9.6 ms
Tline = 75 s
Tpixel = 125 ns
N > 512
FRMV
LINV
PIXCLK
DATA[0..11]
LINE 1 LINE 2 LINE 128
T frame
lineT
LINV
PIXCLK
DATA[0..11] PIXEL 1 PIXEL 2 PIXEL N-1 PIXEL N
pixelT
NCKU UCB Tohoku Sprite Imager S. Harris
CDR 9 Jul 2001 25
Imager Electronics Design Status
• Breadboard fabrication and testing complete• Detailed design Completed
– FEC Electronics Design Completed
– Imager Electrical Board Design Completed
– Daylight Sensor Design Completed
NCKU UCB Tohoku Sprite Imager S. Harris
CDR 9 Jul 2001 26
FEC Breadboard
A breadboard version of the FEC electronics was built to test the design of clock drivers, preamps, correlated double sample (CDS) circuitry and 12-bit A/D conversion.
NCKU UCB Tohoku Sprite Imager S. Harris
CDR 9 Jul 2001 27
Breadboard Camera Measurements
• Measured system gain 29 e-/ADU
• Measured readout noise < 50 e- rms
• CCD full well ~ 120,000 e-
• Dynamic range > 2400:1
• Operating Parameters Master clock: 22.5MHz
Pixel clock: 7.5 MHz
Line clock: 340 kHz
NCKU UCB Tohoku Sprite Imager S. Harris
CDR 9 Jul 2001 28
Breadboard Camera Image
NCKU UCB Tohoku Sprite Imager S. Harris
CDR 9 Jul 2001 29
ETU Imager Fabrication Status
• Assembly of ETU Imager– FEC PC board fabrication status:
• All boards assembled and tested
– Imager Electrical board fabrication status:• Board etch is in process
– Daylight Sensor board fabrication status:• Board is assembled and tested
– Mechanical parts fabrication status:• Machining/fabrication is in process
– Electrical / Electronic (EE) Parts status• see next page
– Optics Parts status• see next page
NCKU UCB Tohoku Sprite Imager S. Harris
CDR 9 Jul 2001 30
EE Parts and Optics Status
EE Parts and Optics Ordered Delivered Ordered DeliveredMicrocircuits
CCD ü ü ü üA/D Converter ü ü ü 7/31/01Oscillator ü ü ü üAll others ü ü ü ü
Interconnection DevicesCCD pin contacts ü ü ü üHSP030M2G (pin contacts) ü ü ü üAll others ü ü ü ü
Discrete SemiconductorsAll devices ü ü ü ü
Passive DevicesInductors/Magnetics
Tape wound core (xfmr) ü ü ü üSpiradel Delay Lines ü ü ü üAll others ü ü ü ü
Capacitors ü ü ü üResistors ü ü ü ü
Optical ComponentsWindow, fused silica P P P PFilters (set of 6), 70 mm ü 7/601 ü 7/601Lens, 61.8 mm ü ü ü üImage Intensifier ü ü ü üFiber Optic Taper, 25 mm ü ü ü üMask Application on Taper ü 6/29/01 ü 6/29/01Fiber Optic Window, 5 mm ü ü ü ü
Revised : 6/21/01 ü : Completed P : Pending information
Engineering Test Unit Flight Unit
NCKU UCB Tohoku Sprite Imager S. Harris
CDR 9 Jul 2001 31
The End