AD AD9929

CCD Signal Processor with
Precision Timing™ Generator
AD9929
FEATURES
PRODUCT DESCRIPTION
36 MSPS correlated double sampler (CDS)
12-bit 36 MHz A/D converter
On-chip vertical driver for CCD image sensor
On-chip horizontal driver for CCD image sensor
6 dB to 40 dB variable gain amplifier (VGA)
Black level clamp with variable level control
Complete on-chip timing generator
Precision Timing core with 0.58 ns resolution
2-phase H-clock modes
4-phase vertical transfer clocks
Electronic and mechanical shutter modes
On-chip sync generator with external sync option
64-lead, plastic ball, 9 × 9 grid array Pb-free package
The AD9929 is a highly integrated CCD signal processor for
digital still camera and digital video camera applications. It
includes a complete analog front end with A/D conversion,
combined with a full-function, programmable timing generator.
The AD9929 also includes horizontal and vertical clock drivers,
which allow direct connection to the CCD image sensor.
The AD9929 is specified at pixel rates of up to 36 MHz. The
analog front end includes black level clamping, a CDS, a VGA,
and a 12-bit A/D converter. The timing generator provides all
the necessary CCD clocks: RG-clock, H-clocks, V-clocks, sensor
gate pulses, a substrate clock, and a substrate bias pulse. Operation is programmed using a 3-wire serial interface.
The AD9929 is packaged in a 64-lead CSPBGA. It is specified
over an operating temperature range of −25°C to +85°C.
APPLICATION
Digital still cameras
Digital video camcorders
FUNCTIONAL BLOCK DIAGRAM
REFT REFB
AD9929
6dB TO 40dB
VREF
CCDIN
CDS
12
VGA
ADC
DOUT
CLAMP
INTERNAL CLOCKS
DCLK1
VSUB
HORIZONTAL
DRIVERS
RG
2
H1, H2
MSHUT
STROBE
4
VERTICAL
DRIVERS
SYNC
GENERATOR
INTERNAL
REGISTERS
SUBCK
HD
VD
SYNC
CLI
SL SCKS
04593-0-001
V1, V2,
V3, V4
FD/DCLK2
PRECISION
TIMING
GENERATOR
DI
Figure 1.
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.326.8703
© 2004 Analog Devices, Inc. All rights reserved.
AD9929
TABLE OF CONTENTS
Specifications..................................................................................... 3
H1 and H2 Blanking .................................................................. 31
Digital Specifications ................................................................... 4
VGATE Masking of XV1 to XV4 and CLPOB Outputs............ 33
Analog Specifications................................................................... 4
Vertical Timing Generation .......................................................... 34
Timing Specifications .................................................................. 5
Creating Vertical Sequences...................................................... 34
Vertical Driver Specifications ..................................................... 5
Special Vertical Sweep Mode Operation ................................. 39
Terminology ...................................................................................... 7
Special Vertical Timing (SPATS).............................................. 40
Absolute Maximum Ratings............................................................ 8
V1 to V4 and SUBCK Output Polarities ..................................... 43
Pin Configuration and Functional Descriptions.......................... 9
Timing Control............................................................................... 46
Equivalent Input Circuits .............................................................. 10
Electronic Shutter Timing Control .......................................... 46
System Overview ............................................................................ 18
VSG Timing ................................................................................ 48
Theory of Operation ...................................................................... 19
VSUB Timing.............................................................................. 49
Modes of Operation ................................................................... 19
MSHUT Timing ......................................................................... 50
Horizontal and Vertical Counters ............................................ 19
Strobe Timing ............................................................................. 52
CLI Input Clock Divider............................................................ 19
Digital I/O States for Different Operating Conditions.............. 53
Gray Code Registers................................................................... 19
Power Supply Sequencing ............................................................. 54
Serial Interface Timing .............................................................. 20
Recommended Power-Up Supply Sequencing....................... 54
Analog Front End Description and Operation....................... 22
Recommended Power-Down Supply Sequencing ................. 54
Precision Timing, High Speed Timing Generation ............... 23
Initial Start-Up Sequence .......................................................... 55
H Driver and RG Outputs ......................................................... 23
Standby Mode Operation .......................................................... 56
Digital Data Outputs.................................................................. 26
Shut-Down Mode Operation.................................................... 57
External Synchronization (Master Mode)................................... 27
Applications Where the CLI Clock Frequency Changes
During Operation....................................................................... 58
Horizontal and Vertical Synchronous Timing............................ 28
Special Note about the HDLEN Register ................................ 28
Horizontal Clamping and Blanking ............................................. 29
Controlling CLPOB Clamp Pulse Timing .............................. 29
Circuit Layout Information........................................................... 60
Outline Dimensions ....................................................................... 62
Ordering Guide .......................................................................... 62
Controlling CLPOB Clamp Pulse Outputs ............................. 30
REVISION HISTORY
Revision A
2/04—Data Sheet Changed from Rev. 0 to Rev. A
Replaced Figure....................................................................................21
1/04—Revision 0: Initial Version
Rev. A | Page 2 of 64
AD9929
SPECIFICATIONS
Table 1.
Parameter
TEMPERATURE RANGE
Operating
Storage
POWER SUPPLY VOLTAGE
AVDD (AFE Analog Supply)
TCVDD (Timing Core Analog Supply)
RGVDD (RG Driver)
HVDD (H1 to H2 Drivers)
DRVDD (Data Output Drivers)
DVDD (Digital)
VERTICAL DRIVER SUPPLY VOLTAGE
VDD (Vertical Driver Input Logic Supply)
VH1, VH2 (Vertical Driver High Supply)
VM1, VM2 (Vertical Driver Mid Supply)
VL (Vertical Driver Low Supply for 3 Level and 2 Level)
AFETG POWER DISSIPATION
36 MHz, Typ Supply Levels, 100 pF H1 to H2 Loading
Power from HVDD Only1
Power-down Mode (AFE and Digital in Standby Operation)
VERTICAL DRIVER POWER DISSIPATION2 (6000 pF V1 to V4 Loading, 1000 pF SUBCK Loading)
Power from VDD
Power from VH1
Power from VH2
Power from VL
MAXIMUM CLOCK RATE (CLI) AD9929
1
Min
Typ
−25
−65
SUBCK
6000 pF
1000 pF
INPUT SIGNAL CHARACTERISTICS DEFINED AS FOLLOWS:
100mV MAX
OPTICAL
BLACK PIXEL
1V MAX
INPUT
SIGNAL RANGE
04593-0-002
500mV TYP
RESET
TRANSIENT
Rev. A | Page 3 of 64
Unit
+85
+150
°C
°C
2.7
2.7
2.7
2.7
2.7
2.7
3.0
3.0
3.0
3.0
3.0
3.0
3.6
3.6
3.6
3.6
3.6
3.6
V
V
V
V
V
V
2.7
11.5
−1.0
−9.0
3.0
15.0
0.0
−7.5
3.6
16.0
1.0
−5.0
V
V
V
V
180
36
1
mW
mW
mW
<1.0
23.0
15.0
42.0
mW
mW
mW
mW
MHz
36
The total power dissipated by the HVDD supply may be approximated by using the equation:
Total HVDD Power = [CLOAD × HVDD × Pixel Frequency] × HVDD × Number of H-Outputs Used.
Actual HVDD power may be slightly different than the calculated value because of the stray capacitance inherent in the PCB layout/routing.
2
Vertical driver loads used when characterizing power consumption. Note: actual power depends on the V1 to V4 timing and number of SUBCKs.
V1, V2, V3, V4
Max
AD9929
DIGITAL SPECIFICATIONS
Table 2. RGVDD = HVDD = 2.7 V to 3.6 V, DVDD = DRVDD = 2.7 V to 3.6 V, CL = 20 pF, TMIN to TMAX, unless otherwise noted.
Parameter
LOGIC INPUTS
High Level Input Voltage
Low Level Input Voltage
High Level Input Current
Low Level Input Current
Input Capacitance
LOGIC OUTPUTS (Except H and RG)
High Level Output Voltage @ IOH = 2 mA
Low Level Output Voltage @ IOL = 2 mA
RG and H-DRIVER OUTPUTS (H1 to H2)
High Level Output Voltage @ Max Current
Low Level Output Voltage @ Max Current
RG Maximum Output Current (Programmable)
H1 and H2 Maximum Output Current (Programmable)
Maximum Load Capacitance
Symbol
Min
VIH
VIL
IIH
IIL
CIN
2.1
VOH
VOL
2.2
VOH
VOL
VDD − 0.5
Typ
Max
0.6
10
10
10
0.5
0.5
15
30
100
Unit
V
V
µA
µA
pF
V
V
V
V
mA
mA
pF
ANALOG SPECIFICATIONS
Table 3. AVDD = 3.0 V, fCLI = 36 MHz, TMIN to TMAX, unless otherwise noted.
Parameter
CDS
Allowable CCD Reset Transient
Max Input Range before Saturation
Max CCD Black Pixel Amplitude
VARIABLE GAIN AMPLIFIER (VGA)
Max Output Range
Gain Control Resolution
Gain Monotonicity
Gain Range
Low Gain
Max Gain
BLACK LEVEL CLAMP
Clamp Level Resolution
Clamp Level
Min Clamp Level
Max Clamp Level
A/D CONVERTER
Resolution
Differential Nonlinearity (DNL)
No Missing Codes
Full-Scale Input Voltage
VOLTAGE REFERENCE
Reference Top Voltage (REFT)
Reference Bottom Voltage (REFB)
SYSTEM PERFORMANCE
Gain Accuracy
Low Gain (VGA Code = 22)
Max Gain (VGA Code = 994)
Peak Nonlinearity, 500 mV Input Signal
Total Output Noise
Power Supply Rejection (PSR)
Min
Typ
Max
500
1.0
±100
2.0
1024
Guaranteed
Unit
Notes
mV
V p–p
mV
See input signal characteristics in Table 1.
V p–p
Steps
6
40
dB
dB
255
Steps
LSB
LSB
LSB
0
255
10
±0.5
Guaranteed
2.0
2.0
1.0
LSB measured at ADC output.
Bits
LSB
V
V
V
Includes entire signal chain.
6
40
0.1
0.3
40
dB
dB
%
LSB rms
dB
Rev. A | Page 4 of 64
Gain = (0.035 × Code) + 5.2 dB.
12 dB gain applied.
AC grounded input, 6 dB gain applied.
Measured with step change on supply.
AD9929
TIMING SPECIFICATIONS
Table 4. CL = 20 pF, AVDD = DVDD = DRVDD = 3.0 V, fCLI = 36 MHz, unless otherwise noted.
Parameter
MASTER CLOCK, CLI
CLI Clock Period
CLI High/Low Pulse Width
Delay from CLI Rising Edge to Internal Pixel Position 0
AFE CLAMP PULSES1
CLPOB Pulse Width
AFE SAMPLE LOCATION1 (See Figure 17)
SHP Sample Edge to SHD Sample Edge
DATA OUTPUTS
Output Delay from DCLK1 Rising Edge (See Figure 19)
Pipeline Delay from SHP/SHD Sampling (See Figure 70)
SERIAL INTERFACE (See Figure 10 and Figure 11)
Maximum SCK Frequency
SL to SCK Setup Time
SCK to SL Hold Time
SDATA Valid to SCK Rising Edge Setup
SCK Falling Edge to SDATA Valid Hold
SCK Falling Edge to SDATA Valid Read
1
Symbol
Min
tCONV
27.8
Max
ns
ns
ns
4
10
Pixels
20
25
Pixels
tOD
9
9
tDV
fSCLK
tLS
tLH
tDS
tDH
tOD
Unit
13.9
6
tCLIDLY
TS1
Typ
10
10
10
10
10
10
ns
Cycles
MHz
ns
ns
ns
ns
ns
Parameter is programmable.
VERTICAL DRIVER SPECIFICATIONS
Table 5. V1 to V4 load = no load, SUBCK load = no load, VDD = 3.0 V, VL = −7.5 V, VH1 = VH2 = +15.0 V, VM1 = VM2 = GND,
fCLI = 36 MHz, unless otherwise noted.
Parameter
Symbol
Min
Typ
Max
Unit
LOGIC INPUTS
High Level Input Voltage
VIH
0.8 (VDD)
VDD
V
Low Level Input Voltage
VIL
0
0.3 (VDD)
V
Propagation Delays, Rise/Fall Times and Output Currents
V1 and V3 Outputs (See Figure 43)
Delay Times
VL to VM1
tPLM1
100
ns
VM1 to VH1
tPMH
100
ns
VH1 to VM1
tPHM
50
ns
VM1 to VL
tPML1
50
ns
Rise Times
VL to VM1
tR1
500
ns
VM1 to VH1
tR2
500
ns
Fall Times
VH1 to VM1
tF1
500
ns
VM1 to VL
tF2
500
ns
Output Currents
V1 or V3 @ VL = −7.25 V
10.0
mA
V1 or V3 @ VM1 = −0.25 V
−5.0
mA
V1 or V3 @ VM1 = +0.25 V
5.0
mA
V1 or V3 @ VH1 = +14.75 V
−7.2
mA
Rev. A | Page 5 of 64
AD9929
Parameter
V2 and V4 Outputs (See Figure 43)
Delay Times
VL to VM2
VM2 to VL
Rise Times
VL to VM2
Fall Times
VM2 to VL
Output Currents
V2 or V2 @ VL =−7.25 V
V2 or V4 @ VM2 = −0.25 V
SUBCK Output (See Figure 44)
Delay Times
VL to VH2
VH2 to VL
Rise Times
VL to VH2
Fall Times
VH2 to VL
Output Currents
SUBCK @ VL = −7.25 V
SUBCK @ VH2 = 14.75 V
Symbol
Min
Typ
Max
Unit
tPLM2
tPML2
100
50
ns
ns
tR3
500
ns
tF3
500
ns
10.0
−5.0
mA
mA
tPLH
tPHL
100
50
ns
ns
tR4
90
ns
tF4
90
ns
5.4
−4.0
mA
mA
Rev. A | Page 6 of 64
AD9929
TERMINOLOGY
Differential Nonlinearity (DNL)
Total Output Noise
An ideal ADC exhibits code transitions that are exactly 1 LSB
apart. DNL is the deviation from this ideal value. Thus every
code must have a finite width. “No missing codes guaranteed to
12-bit resolution” indicates that all 4096 codes, respectively,
must be present over all operating conditions.
The rms output noise is measured using histogram techniques.
The standard deviation of the ADC output codes is calculated
in LSBs, and represents the rms noise level of the total signal
chain at the specified gain setting. The output noise can be
converted to an equivalent voltage, using the relationship
1 LSB = (ADC full scale/2N codes) when N is the bit resolution
of the ADC. For the AD9929, 1 LSB is 0.5 mV.
Peak Nonlinearity
Peak nonlinearity, a full signal-chain specification, refers to the
peak deviation of the output of the AD9929 from a true straight
line. The point used as zero scale occurs 1/2 LSB before the first
code transition. “Positive full scale” is defined as a level 1 and
1/2 LSB beyond the last code transition. The deviation is measured from the middle of each particular output code to the
true straight line. The error is then expressed as a percentage of
the 2 V ADC full-scale signal. The input signal is always appropriately gained up to fill the ADC’s full-scale range.
Power Supply Rejection (PSR)
The PSR is measured with a step change applied to the supply
pins. The PSR specification is calculated from the change in the
data outputs for a given step change in the supply voltage.
Rev. A | Page 7 of 64
AD9929
ABSOLUTE MAXIMUM RATINGS
Table 6.
Parameter
VDD
VL
VH1, VH2
VM1, VM2
AVDD
TCVDD
HVDD
RGVDD
DVDD
DRVDD
RG Output
H1 to H2 Output
Digital Outputs
Digital Inputs
SCK, SL, SDATA
REFT, REFB
CCDIN
With Respect To
VDVSS
VDVSS
VDVSS
VDVSS
AVSS
TCVSS
HVSS
RGVSS
DVSS
DRVSS
RGVSS
HVSS
DVSS
DVSS
DVSS
AVSS
AVSS
Min
VDVSS − 0.3
VDVSS − 10.0
VL –0.3
VL – 0.3
−0.3
−0.3
−0.3
−0.3
−0.3
−0.3
−0.3
−0.3
−0.3
−0.3
−0.3
−0.3
−0.3
Max
VDVSS + 4.0
VDVSS + 0.3
VL + 27.0
VL + 27.0
+3.9
+3.9
+3.9
+3.9
+3.9
+3.9
RGVDD + 0.3
HVDD + 0.3
DVDD + 0.3
DVDD + 0.3
DVDD + 0.3
AVDD + 0.3
AVDD + 0.3
Unit
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only;
functional operation of the device at these or any other conditions above those listed in the operational sections of this specification is not
implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Package Thermal Resistance
θJA = 61.0 °C/W
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulates on
the human body and test equipment and can discharge without detection. Although this product features
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy
electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance
degradation or loss of functionality.
Rev. A | Page 8 of 64
AD9929
PIN CONFIGURATION AND FUNCTIONAL DESCRIPTIONS
A 1 CORNER
INDEX AREA
1 2 3 4 5 6 7 8 9 10
A
B
C
D
E
F
G
H
J
K
AD9929
04593-0-003
TOP VIEW
(Not to Scale)
Figure 2. Pin Configuration
Table 7. Pin Function Descriptions
Pin
Mnemonic
Type1
D1
VD
DIO
D2
HD
DIO
B8
A8
A7
B7
A6
B6
B5
A4
B3
A3
B2
A2
A1
B4
A5
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
DCLK1
DRVSS
DRVDD
DO
DO
DO
DO
DO
DO
DO
DO
DO
DO
DO
DO
DO
P
P
G9
SUBCK
DO
D10
V1
DO
E9
V2
DO
G10
V3
DO
H9
V4
DO
H10
VH1
P
C10
VM1
P
F10
VM2
P
F9
VL
P
E10
VH2
P
1
Description
Vertical Sync Pulse (Input for Slave
Mode, Output for Master Mode)
Horizontal Sync Pulse (Input for
Slave Mode, Output for Master
Mode)
Data Output
Data Output
Data Output
Data Output
Data Output
Data Output
Data Output
Data Output
Data Output
Data Output
Data Output
Data Output
Data Clock Output
Data Output Driver Ground
Data Output Driver Supply
CCD Substrate Clock
(2 Level: VH2, VL)
CCD Vertical Transfer Clock
(3 Level: VH1, VM1, VL)
CCD Vertical Transfer Clock
(2 Level: VM2, VL)
CCD Vertical Transfer Clock
(3 Level: VH1, VM1, VL)
CCD Vertical Transfer Clock
(2 Level: VM2, VL)
Vertical Driver High Supply
(High Supply for V1 and V3)
Vertical Driver Midsupply
(Midsupply for V1 and V3)
Vertical Driver Midsupply
(Midsupply for V2 and V4)
Vertical Driver Low Supply
Vertical Driver High Supply for
SUBCK
AI = Analog Input, AO = Analog Output, DI = Digital Input,
DO = Digital Output, DIO = Digital Input/Output, P = Power.
Pin
B10
J9
A9
G1
F1
E1
E2
F2
G2
H1
J1
H2
C9
C1
K3
J3
J4
J5
J6
J7
J8
K4
K6
J2
K2
K1
K5
K7
K8
K9
K10
J10
D9
B1
C2
A10
B9
Rev. A | Page 9 of 64
Mnemonic
VDD
VDVSS
VSUB
H1
H2
HVDD
HVSS
HVSS
HVSS
RG
RGVDD
RGVSS
SYNC or
VGATE
FD or
DCLK2
AVDD
AVSS
AVSS
AVSS
AVSS
AVSS
AVSS
AVSS
AVSS
CLI
TCVDD
TCVSS
CCDIN
REFT
REFB
SDATA
SL
SCK
OUTCONT
MSHUT
STROBE
DVDD
DVSS
Type1
P
P
DO
DO
DO
P
P
P
P
DO
P
P
DI
DI
DO
DO
P
P
P
P
P
P
P
P
P
DI
P
P
AI
AO
AO
DI
DI
DI
DI
DO
DO
P
P
Description
Vertical Driver Input Logic Supply
Vertical Driver Ground
CCD Substrate Bias
CCD Horizontal Clock
CCD Horizontal Clock
H1 and H2 Driver Supply
H1 and H2 Driver Ground
H1 and H2 Driver Ground
H1 and H2 Driver Ground
CCD Reset Gate Clock
RG Driver Supply
RG Driver Ground
External System Sync Input
VGATE Input
Field Designator Output
DCLK2 Output
Analog Supply for AFE
Analog Ground for AFE
Analog Ground for AFE
Analog Ground for AFE
Analog Ground for AFE
Analog Ground for AFE
Analog Ground for AFE
Analog Ground for AFE
Analog Ground for AFE
Reference Clock Input
Analog Supply for Timing Core
Analog Ground for Timing Core
CCD Input Signal
Voltage Reference Top Bypass
Voltage Reference Bottom Bypass
3-Wire Serial Data Input
3-Wire Serial Load Pulse
3-Wire Serial Clock
Output Control
Mechanical Shutter Pulse
Strobe Pulse
Digital Supply
Digital Ground
AD9929
EQUIVALENT INPUT CIRCUITS
DVDD
AVDD
R
AVSS
04593-0-006
AVSS
04593-0-004
330Ω
DVSS
Figure 5. Circuit 3. Digital Inputs
Figure 3. Circuit 1. CCDIN
DVDD
HVDD OR
RGVDD
DRVDD
DATA
RG, H1 ≠ H2
DOUT
THREESTATE
OUTPUT
DRVSS
HVSS OR
RGVSS
Figure 4. Circuit 2. Digital Data Output
Figure 6. Circuit 4. H1 to H2, RG Drivers
Rev. A | Page 10 of 64
04593-0-007
DVSS
04593-0-005
ENABLE
AD9929
Table 8. Control Register Address Map
Address
0x00
0x01
0x02
0x03
0x04
0x05
Content
(23:0)
23
Bit
Width
24
1
Default
Value
000000
0
(22:21)
2
(20:18)
17
16
(15:14)
3
1
1
2
0
1
0
0
Unused
HBLKMASK
SYNCPOL
Unused
13
1
0
XSUBCKMODE_HP
(12:10)
3
0
Unused
(9:8)
2
0
MSHUTPAT
7
1
0
MSHUT/VGATE_EN
6
5
4
(3:1)
1
1
1
3
0
1
1
0
Unused
CLPOB_CONT
CLPOB_MODE
Unused
CLPOB Control (0 = CLPOB Off, 1 = CLPOB On)
CLPOB CCD Region Control (See Table 19)
0
1
0
VDMODE
VD Synchronous/Asynchronous Mode Setting
(0 = VD Synchronous, 1 = VD Asynchronous )
(23:22)
(21:16)
(15:14)
(13:8)
(7:6)
(5:0)
(23:17)
16
(15:14)
(13:8)
(7:6)
(5:0)
(23:16)
15
2
6
2
6
2
6
7
1
2
6
2
6
8
1
0
0x34
0
0x18
0
0x0B
0x00
0
0
0x00
0
0x10
0x80
–
Unused
SHDLOC
Unused
SHPLOC
DCLKPHASE
DOUTPHASE
Unused
H1BLKRETIME
Unused
H1POSLOC
Unused
RGNEGLOC
REFBLACK
Unused
(14:12)
3
5
H2DRV
11
1
0
Unused
(10:8)
3
5
H1DRV
(7:3)
5
0x00
Unused
(2:0)
3
2
RGDRV
RG Drive Strength (0 = Off, 1 = 2.15 mA, 2 = 4.2 mA, 3 = 6.45 mA,
4 = 8.6 mA, 5 = 10.75 mA, 6 = 12.9 mA, 7 = 15.05 mA)
(23:10)
9
8
(7:2)
14
1
1
6
0x0000
0
0
00
Unused
AFESTBY
DIGSTBY
Unused
AFE Standby (0 = Standby, 1 = Normal Operation)
Digital Standby (0 = Standby, 1 = Normal Operation)
1
1
0
OUTCONT_REG
0
1
1
OUTCONT_ENB
Register Name
SW_RESET
Unused
XSUBCKSUPPRESS
Register Description
Software Reset = 000000 (Reset All Registers to Default )
Suppress XSUBCK (00 = No Suppression, 01 = Suppress First XSUBCK
After Last VSG Line Pulse, 10 = Suppress All XSUBCKs, Except Final
XSUBCK, 11 = No Suppression)
Test Mode. Should Be Set = 0
Masking Polarity for H1 During Blanking Period (0 = Low, 1 = High)
External SYNC Active Polarity (0 = Active Low)
High Precision Shutter Mode Operation
(0 = Single Pulse, 1 = Multiple Pulse)
Selects MSHUT Pattern. (See Figure 51)
(0 = Mshutpat0,1 = Mshutpat1,2 = Mshutpat2, 3 = Mshutpat3)
MSHUT Masking of VGATE Input (0 = MSHUT Does Not Mask VGATE,
1 = MSHUT Does Mask VGATE)
SHD Sample Location
SHP Sample Location
DCLK Pulse Adjustment
Data Output [11:0] Phase Adjustment
Retimes the H1 HBLK to Internal Clock
H1 Positive Edge Location
RG Negative Edge Location
Black Level Clamp
H2 Drive Strength (0 = Off, 1 = 4.3 mA, 2 = 8.6 mA, 3 = 12.9 mA,
4 = 17.2 mA, 5 = 21.5 mA, 6 = 25.8 mA, 7 = 30.1 mA)
H1 Drive Strength (0 = Off, 1 = 4.3 mA, 2 = 8.6 mA, 3 = 12.9 mA,
4 = 17.2 mA, 5 = 21.5 mA, 6 = 25.8 mA, 7 = 30.1 mA)
Internal OUTCONT Signal Control
(0 = Digital Outputs Held at Fixed DC Level, 1 = Normal Operation)
External OUTCONT Signal Input Pin 43 Control (0 = Pin Enabled,
1 = Pin Disabled)
Rev. A | Page 11 of 64
AD9929
Address
0x0A
(VD
SyncReg)1
0x0B
(VD
SyncReg)1
0x0C
(VD
SyncReg)1
0x0D
(VD
SyncReg)1
0x0E
(VD
SyncReg)1
0x0F
0x17
0x18
0x19
0x1A
Content
23
22
(21:16)
(15:12)
(11:10)
9
8
(7:4)
(3:2)
1
0
(23:22)
21
20
(19:17)
16
Bit
Width
1
1
6
4
2
1
1
4
2
1
1
2
1
1
3
1
Default
Value
0
0
0x00
0
0
0
0
C
3
0
0
0
1
1
0
0
Register Name
Unused
FDPOL
XVSGMASK
SYNCCNT
SVREP_MODE
HBLKEXT
HPULSECNT
SPATLOGIC
SVOS
SPAT_EN
MODE
Unused
XSUBCK_EN
XVSG_EN
Unused
STROBE_EN
15
(14:12)
11
(10:0)
(23:21)
20
(19:18)
17
16
15
(14:12)
11
(10:0)
(23:17)
16
(15:11)
(10:0)
(23:22)
(21:20)
(19:18)
17
16
(15:10)
(9:0)
(23:8)
(7:0)
(23:13)
(12:0)
(23:13)
(12:0)
(23:13)
(12:0)
(23:13)
(12:0)
1
3
1
11
3
1
2
1
1
1
3
1
11
7
1
5
11
2
2
2
1
1
6
10
16
8
11
13
11
13
11
13
11
13
0
0
0
0x7FF
0
0
0
0
0
0
0
0
0x000
–
0
–
0x000
0
0
0
0
0
0x00
0x000
0
60
–
0x1FFF
–
0x1FFF
–
0x1FFF
–
0x1FFF
Unused
XSUBCKNUM_HP
Unused
XSUBCKNUM
Unused
MSHUTINIT
Unused
Unused
MSHUTEN
Unused
MSHUTPOS_HP
Unused
MSHUTPOS
Unused
VSUBPOL
Unused
VSUBTOG
Unused
TESTMODE1
Unused
TESTMODE2
TESTMODE3
Unused
VGAGAIN
Unused
XVSGLEN_1
Unused
XV1SPAT_TOG1
Unused
XV1SPAT_TOG2
Unused
XV2SPAT_TOG1
Unused
XV2SPAT_TOG2
Register Description
FD Polarity Control (0 = Low, 1 = High)
XVSG Masking (See Table 25)
External SYNC Setting
Super Vertical Repetition Mode
H Pulse Blanking Extend Control
H Pulse Control During Blanking
SPAT Logic Setting (See Table 27)
Second V Output Setting (10 = Ouput Repetition 1)
SPAT Control (0 = SPAT Disable, 1 = SPAT Enable)
Mode Control Bit (0 = Mode_A, 1 = Mode_B)
XSUBCK Output Enable Control (0 = Disable, 1 = Enable)
XVSG Output Enable Control (0 = Disable, 1 = Enable)
STROBE Output Control (0 = STROBE Output Held Low,
1 = STROBE Output Enabled)
High Precision Shutter XSUBCLK Pulse Position/Number
Total Number of XSUBCKs Per Field
MSHUT Initialize (1 = Forces MSHUT Low)
MSHUT Control (0 = MSHUT Held at Last State, 1 = MSHUT Output)
MSHUT Position during High Precision Operation
MSHUT Position during Normal Operation
VSUB Active Polarity (0 = Low, 1 = High)
VSUB Toggle Position. Active Starting Line in any Field.
This Register Should Always Be Set = 0.
This Register Should Always Be Set = 0.
This Register Should Always Be Set = 0.
VGA Gain
XVSGTOG_1 Pulse Width
XV1SPAT Toggle Position #1 (Mode_A Active)
XV1SPAT Toggle Position #2 (Mode_A Active)
XV2SPAT Toggle Position #1 (Mode_A Active)
XV2SPAT Toggle Position #2 (Mode_A active)
Rev. A | Page 12 of 64
AD9929
Address
0x1B
0x1C
0x1D
0x1E
0x1F
0x20
0x21
0x22
0x23
0x24
0x25
0x26
0xD5
0xD6
1
Content
(23:13)
(12:0)
(23:13))
(12:0
(23:13)
(12:0)
(23:13)
(12:0)
(23:13)
(12:0)
(23:13)
(12:0)
(23:13)
(12:0)
(23:13)
(12:0)
(23:13)
(12:0)
(23:13)
(12:0)
(23:13)
(12:0)
(23:13)
(12:0)
(23:4)
Bit
Width
11
13
11
13
11
13
11
13
11
13
11
13
11
13
11
13
11
13
11
13
11
13
11
13
20
Default
Value
–
0x1FFF
–
0x1FFF
–
0x1FFF
–
0x1FFF
–
0x1FFF
–
0x1FFF
–
0x1FFF
–
0x1FFF
–
0x1FFF
–
0x1FFF
–
0x1FFF
–
0x1FFF
0x00000
Register Name
Unused
XV3SPAT_TOG1
Unused
XV3SPAT_TOG2
Unused
XV4SPAT_TOG1
Unused
XV4SPAT_TOG2
Unused
XV1SPAT_TOG1
Unused
XV1SPAT_TOG2
Unused
XV2SPAT_TOG1
Unused
XV2SPAT_TOG2
Unused
XV3SPAT_TOG1
Unused
XV3SPAT_TOG2
Unused
XV4SPAT_TOG1
Unused
XV4SPAT_TOG2
Unused
3
1
1
DCLK2SEL
2
1
0
DCLK1SEL
(1:0)
(23:1)
0
2
23
1
0
0x000000
1
CLKDIV
Unused
SLAVE_MODE
Register Description
XV3SPAT Toggle Position #1 (Mode_A active)
XV3SPAT Toggle Position #2 (Mode_A active)
XV4SPAT Toggle Position #1 (Mode_A active)
XV4SPAT Toggle Position #2 (Mode_A Active)
XV1SPAT Toggle Position #1 (Mode_A Active)
XV1SPAT Toggle Position #2 (Mode_B Active)
XV2SPAT Toggle Position #1 (Mode_B Active)
XV2SPAT Toggle Position #2 (Mode_B Active)
XV3SPAT Toggle Position #1 (Mode_B Active)
XV3SPAT Toggle Position #2 (Mode_B Active)
XV4SPAT Toggle Position #1 (Mode_B Active)
XV4SPAT Toggle Position #2 (Mode_B Active)
DCLK2 Selector (0 = Select Internal FD Signal To Be Output on
FD/DCLK2 Pin 16, 1 = Select CLI To Be Output on FD/DCLK2 Pin 16)
DCLK1 Selector (0 = Select DLL Version for DCLK1 Output, 1 = Select
CLI for DCLK1 Output)
Input Clock Divider (0 = No Division, 1 = 1/2, 2 = 1/3, 3 = 1/4)
Operating Mode ( 0 = Master Mode, 1 = Slave Mode)
This register defaults to VD synchronous mode type at power-up. VD sync type registers do not get updated until the first falling edge of VD is asserted after the
register has been programmed. VD sync type registers can be programmed to be asynchronous registers by setting VDMODE = 1 (Address 0x01).
Rev. A | Page 13 of 64
AD9929
Table 9. System Register Address Map (Address 0x14)
Register
Sys_Reg(0)
Sys_Reg(1)
Sys_Reg(2)
Sys_Reg(3)
Sys_Reg(4)
Sys_Reg(5)
Sys_Reg(6)
Sys_Reg(7)
Sys_Reg(8)
Content
(31:24)
Bit
Width
8
Default
(Decimal)
NA
Register Name
System_Reg_addr
(23:0)
24
NA
System_Number_N
(31:23)
22
21
20
19
(18:10)
9
1
1
1
1
9
37
0
0
1
1
0
(9:1)
9
19
0
(31:24)
(23:15)
(14:6)
(5:0)
(31:29)
(28:20)
(19:11)
(10:2)
1
0
31
30
(29:21)
(20:12)
(11:3)
(2:0)
(31:26)
(25:17)
(16:8)
(7:0)
31
(30:22)
(21:13)
12
11
10
9
(8:0)
(31:23)
(22:14)
(13:5)
(4:0)
(31:28)
(27:19)
(18:10)
(9:1)
0
1
8
9
9
6
3
9
9
9
1
1
1
1
9
9
9
3
6
9
9
8
1
9
9
1
1
1
1
9
9
9
9
5
4
9
9
9
1
0
12
31
0
VTPLEN0
XV1STARTPOL0
XV2STARTPOL0
XV3STARTPOL0
XV4STARTPOL0
XV1TOG1POS0
XV1TOG2POS0 Vertical
Sequence
XV2TOG1POS0 [8]
XV2TOG1POS0 [7:0]
XV2TOG2POS0
XV3TOG1POS0
XV3TOG2POS0 [8:3]
XV3TOG2POS0 [2:0]
XV4TOG1POS0
XV4TOG2POS0
VTPLEN1
XV1STARTPOL1
XV2STARTPOL1
XV3STARTPOL1
XV4STARTPOL1
XV1TOG1POS1
XV1TOG2POS1
XV2TOG1POS1
XV2TOG2POS1 [8:6]
XV2TOG2POS1 [5:0]
XV3TOG1POS1
XV3TOG2POS1
XV4TOG1POS1 [8:1]
XV4TOG1POS1 [0]
XV4TOG2POS1
VTPLEN2
XV1STARTPOL2
XV2STARTPOL2
XV3STARTPOL2
XV4STARTPOL2
XV1TOG1POS2
XV1TOG2POS2
XV2TOG1POS2
XV2TOG2POS2
XV3TOG1POS2 [8:4]
XV3TOG1POS2 [3:0]
XV3TOG2POS2
XV4TOG1POS2
XV4TOG2POS2
Unused
19
12
31
104
0
0
1
1
18
58
47
96
0
76
38
105
57
0
0
1
1
0
29
19
48
0
29
19
48
–
Rev. A | Page 14 of 64
Register Description
System Register Address is (Address 0x14)
Number N Register Writes (0x000000 = Write All
Registers)
Vertical Sequence #0: Length Between Repetitions
Vertical Sequence #0: XV1 Start Polarity
Vertical Sequence #0: XV2 Start Polarity
Vertical Sequence #0: XV3 Start Polarity
Vertical Sequence #0: XV4 Start Polarity
Vertical Sequence #0: XV1 Toggle Position 1
#0: XV1 Toggle Position 2
Vertical Sequence #0: XV2 Toggle Position 1
Vertical Sequence #0: XV2 Toggle Position 2
Vertical Sequence #0: XV3 Toggle Position 1
Vertical Sequence #0: XV3 Toggle Position 2
Vertical Sequence #0: XV4 Toggle Position 1
Vertical Sequence #0: XV4 Toggle Position 2
Vertical Sequence #1: Length Between Repetitions
Vertical Sequence #1: XV1 Start Polarity
Vertical Sequence #1: XV2 Start Polarity
Vertical Sequence #1: XV3 Start Polarity
Vertical Sequence #1: XV4 Start Polarity
Vertical Sequence #1: XV1 Toggle Position 1
Vertical Sequence #1: XV1 Toggle Position 2
Vertical Sequence #1: XV2 Toggle Position 1
Vertical Sequence #1: XV2Toggle Position 2
Vertical Sequence #1: XV3 Toggle Position 1
Vertical Sequence #1: XV3 Toggle Position 2
Vertical Sequence #1: XV4 Toggle Position 1
Vertical Sequence #1: XV4 Toggle Position 2
Vertical Sequence #2: Length between Repetitions
Vertical Sequence #2: XV1 Start Polarity
Vertical Sequence #2: XV2 Start Polarity
Vertical Sequence #2: XV3 Start Polarity
Vertical Sequence #2: XV4 Start Polarity
Vertical Sequence #2: XV1 Toggle Position 1
Vertical Sequence #2: XV1 Toggle Position 2
Vertical Sequence #2: XV2 Toggle Position 1
Vertical Sequence #2: XV2 Toggle Position 2
Vertical Sequence #2: XV3 Toggle Position 1
Vertical Sequence #2: XV3 Toggle Position 2
Vertical Sequence #2: XV4 Toggle Position 1
Vertical Sequence #2: XV4 Toggle Position 2
AD9929
Register
Sys_Reg(9)
Sys_Reg(10)
Sys_Reg(11)
Sys_Reg(12)
Sys_Reg(13)
Sys_Reg(14)
Sys_Reg(15)
Sys_Reg(16)
1
Content
(31:23)
22
21
20
19
(18:10)
(9:1)
0
(31:24)
(23:15)
(14:6)
(5:0)
(31:29)
(28:20)
(19:11)
(10:1)
0
Bit
Width
9
1
1
1
1
9
9
1
8
9
9
6
3
9
9
10
1
Default
(Decimal)
89
0
0
1
1
0
60
60
30
90
0
–
Register Name
VTPLEN3
XV1STARTPOL3
XV2STARTPOL3
XV3STARTPOL3
XV4STARTPOL3
XV1TOG1POS3
XV1TOG2POS3
XV2TOG1POS3 [8]
XV2TOG1POS3 [7:0]
XV2TOG2POS3
XV3TOG1POS3
XV3TOG2POS3 [8:3]
XV3TOG2POS3 [2:0]
XV4TOG1POS3
XV4TOG2POS3
HBLKHPOS
Unused
(31:20)
12
2283
HDLEN1
(19:10)
(9:1)
0
(31:24)
(23:16)
(15:5)
(4:0)
(31:26)
(25:18)
(17:9)
(8:0)
(31:23)
(22:14:)
(13:2)
(1:0)
(31:22)
(21:18)
(17:8)
(7:0)
10
9
1
8
8
11
5
6
8
9
9
9
9
12
2
10
4
10
8
130
100
HLEN
OLEN
BLLEN [8]
BLLEN [7:0]
MSHUTLEN
XVSGTOG_0
XVSGTOG_1 [10:6]
XVSGTOG_1 [5:0]
XVSGLEN_0
XSUBCK1TOG1
XSUBCK1TOG2
XSUBCK2TOG1
XSUBCK2TOG2
CLPTOG11
CLPTOG2 [11]1
CLPTOG2 [10:0] 1
VDRISE
HDRISE
Unused
30
90
0
0
118
1048
1198
60
19
88
19
88
2243
2278
9
120
–
Register value must be a gray code number (see Gray Code Registers section).
Rev. A | Page 15 of 64
Register Description
Vertical Sequence #3: Length Between Repetitions
Vertical Sequence #3: XV1 Start Polarity
Vertical Sequence #3: XV2 Start Polarity
Vertical Sequence #3: XV3 Start Polarity
Vertical Sequence #3: XV4 Start Polarity
Vertical Sequence #3: XV1 Toggle Position 1
Vertical Sequence #3: XV1 Toggle Position 2
Vertical Sequence #3: XV2 Toggle Position 1
Vertical Sequence #3: XV2 Toggle Position 2
Vertical Sequence #3: XV3 Toggle Position 1
Vertical Sequence #3: XV3 Toggle Position 2
Vertical Sequence #3: XV4 Toggle Position 1
Vertical Sequence #3: XV4 Toggle Position 2
H1 Pulse ON Position during Blanking Period
12-bit Gray Code HD Counter Value
(Gray Code Number)
10-Bit HL Counter Values
9-Bit OL Counter Value
9-bit BL Counter Value
MSHUT Sequence Length
XVSGTOG_0 Toggle Position
XVSG TOG_1 Toggle Position
XVSGTOG_0 Pulse Width
XSUBCK1 1st Toggle Position
XSUBCK1 2nd Toggle Position
XSUBCK2 1st Toggle Position
XSUBCK2 2nd Toggle Position
CLPOB Toggle Position 1 (Gray Code Number)
CLPOB Toggle Position 2 (Gray Code Number)
VD Toggle Position 1
HD Toggle Position 2
AD9929
Table 10. Mode_A Register Map (Address 0x15)
Register
Mode_Reg(0)
Mode_Reg(1)
Mode_Reg(2)
Mode_Reg(3)
Mode_Reg(4)
Mode_Reg(5)
Mode_Reg(6)
Mode_Reg(7)
Mode_Reg(8)
1
Content
(31:24)
(23:0)
(31:21)
(20:9)
8
7
(6:0)
31
(30:28)
(27:25)
(24:22)
(21:19)
(18:16)
15
14
13
12
11
(10:3)
(2:0)
(31:27)
(26:19)
(18:11)
(10:9)
(8:7)
(6:5)
(4:3)
(2:0)
(31:29)
(28:26)
(25:23)
(22:12)
(11:1)
0
(31:19)
(18:6)
(5:0)
(31:25)
(24:12)
(11:0)
31
(30:18)
(17:5)
(4:0)
(31:24)
(23:11)
(10:9)
(8:0)
Bit
Width
8
24
11
12
1
1
7
1
3
3
3
3
3
1
1
1
1
1
8
3
5
8
8
2
2
2
2
3
3
3
3
11
11
1
13
13
6
7
13
12
1
13
13
5
8
13
2
9
Default
(Decimal)
NA
NA
262
1139
1
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
3
0
0
0
0
0
–
988
1138
1078
1168
958
1138
988
1228
1392
3
–
Register Name
Mode_A_addr
Mode_A_Number_N
VDLEN
HDLASTLEN1
XVSGSEL1
XVSGSEL2
XVSGACTLINE
SUBCKSEL
VTPSEQPTR0
VTPSEQPTR1
VTPSEQPTR2
VTPSEQPTR3
VTPSEQPTR4
CLPEN0
CLPEN1
CLPEN2
CLPEN3
CLPEN4
SCP1
SCP2
SCP2
SCP3
SCP4
VTPSEL0
VTPSEL1
VTPSEL2
VTPSEL3
VTPREP0
VTPREP1
VTPREP2
VTPREP3
SVREP0
SVREP3
Unused
XV1SPAT_TOG3
XV1SPAT_TOG4
XV2SPAT_TOG3
XV2SPAT_TOG3
XV2SPAT_TOG
XV3SPAT_TOG3
XV3SPAT_TOG3
XV3SPAT_TOG4
XV4SPAT_TOG3
XV4SPAT_TOG4
XV4SPAT_TOG4
SECONDVPOS
VPATSECOND
Unused
Register value must be a gray code number (see Gray Code Registers section).
Rev. A | Page 16 of 64
Register Description
Mode_A Address Is (Address 0x15)
Number N Register Writes (0x000000 = Write All Registers )
VD Counter Value
Number of Pixels in Last Line (Gray Code Number)
XVSG1 Sequence Selector (See Table 35)
XVSG2 Sequence Selector (See Table 35)
XVSG Active Line
Select one of two SUBCK patterns
Vertical Transfer Sequence Region 0
Vertical Transfer Sequence Region 1
Vertical Transfer Sequence Region 2
Vertical Transfer Sequence Region 3
Vertical Transfer Sequence Region 4
CLPOB Output Control 1
CLPOB Output Control 2
CLPOB Output Control 3
CLPOB Output Control 4
CLPOB Output Control 5
Sequence Change Position 1
Sequence Change Position 2
Sequence Change Position 3
Sequence Change Position 4
Vertical Pattern Selection 0
Vertical Pattern Selection 1
Vertical Pattern Selection 2
Vertical Pattern Selection 3
Number of Vertical Pulse Repetitions for Pattern 0
Number of Vertical Pulse Repetitions for Pattern 1
Number of Vertical Pulse Repetitions for Pattern 2
Number of Vertical Pulse Repetitions for Pattern 3
Vertical Sweep Repetition Number for CCD Region 0
Vertical Sweep Repetition Number for CCD Region 3
XV1SPAT Toggle Position 3
XV1SPAT Toggle Position 4
XV2SPAT Toggle Position 3
XV2SPAT Toggle Position 4
XV3SPAT Toggle Position 3
XV3SPAT Toggle Position 4
XV4SPAT Toggle Position 3
XV4SPAT Toggle Position 4
Second V Pattern Output Position
Selected Second V-Pattern Group for VSG Active Line
AD9929
Table 11. Mode_B Register Map (Address 0x16)
Register
Mode_Reg(0)
Mode_Reg(1)
Mode_Reg(2)
Mode_Reg(3)
Mode_Reg(4)
Mode_Reg(5)
Mode_Reg(6)
Mode_Reg(7)
Mode_Reg(8)
1
Content
(31:24)
(23:0)
(31:21)
(20:9)
8
7
(6:0)
31
(30:28)
(27:25)
(24:22)
(21:19)
(18:16)
15
14
13
12
11
(10:3)
(2:0)
(31:27)
(26:19)
(18:11)
(10:9)
(8:7)
(6:5)
(4:3)
(2:0)
(31:29)
(28:26)
(25:23)
(22:12)
(11:1)
0
(31:19)
(18:6)
(5:0)
(31:25)
(24:12)
(11:0)
31
(30:18)
(17:5)
(4:0)
(31:24)
(23:11)
(10:9)
(8:0)
Bit
Width
8
24
11
12
1
1
7
1
3
3
3
3
3
1
1
1
1
1
8
3
5
8
8
2
2
2
2
3
3
3
3
11
11
1
13
13
6
7
13
12
1
13
13
5
8
13
2
9
Default
(Decimal)
NA
NA
262
1139
1
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
3
0
0
0
0
0
–
988
1138
1078
958
1138
988
1228
1392
3
–
Register Name
Mode_B_addr
Mode_B_Number_N
VDLEN
HDLASTLEN1
XVSGSEL1
XVSGSEL2
XVSGACTLINE
SUBCKSEL
VTPSEQPTR0
VTPSEQPTR1
VTPSEQPTR2
VTPSEQPTR3
VTPSEQPTR4
CLPEN0
CLPEN1
CLPEN2
CLPEN3
CLPEN4
SCP1
SCP2
SCP2
SCP3
SCP4
VTPSEL0
VTPSEL1
VTPSEL2
VTPSEL3
VTPREP0
VTPREP1
VTPREP2
VTPREP3
SVREP0
SVREP3
Unused
XV1SPAT_TOG3
XV1SPAT_TOG4
XV2SPAT_TOG3
XV2SPAT_TOG3
XV2SPAT_TOG4
XV3SPAT_TOG3
XV3SPAT_TOG3
XV3SPAT_TOG4
XV4SPAT_TOG3
XV4SPAT_TOG4
XV4SPAT_TOG4
SECONDVPOS
VPATSECOND
Unused
Register value must be a gray code number (See Gray Code Registers section).
Rev. A | Page 17 of 64
Register Description
Mode_B Address is (Address 0x16)
Number N Register Writes (0x000000 = Write All Registers)
VD Counter Value
Number of Pixels in Last Line (Gray Code Number)
XVSG1 Sequence Selector (See Table 35)
XVSG2 Sequence Selector (See Table 35)
XVSG Active Line
Select One of Two SUBCK Patterns
Vertical Transfer Sequence Region 0
Vertical Transfer Sequence Region 1
Vertical Transfer Sequence Region 2
Vertical Transfer Sequence Region 3
Vertical Transfer Sequence Region 4
CLPOB Output Control 1
CLPOB Output Control 2
CLPOB Output Control 3
CLPOB Output Control 4
CLPOB Output Control 5
Sequence Change Position 1
Sequence Change Position 2
Sequence Change Position 3
Sequence Change Position 4
Vertical Pattern Selection 0
Vertical Pattern Selection 1
Vertical Pattern Selection 2
Vertical Pattern Selection 3
Number of VTP0 Pulse Repetitions for Pattern 0
Number of VTP1 Pulse Repetitions for Pattern 1
Number of VTP2 Pulse Repetitions for Pattern 2
Number of VTP0 Pulse Repetitions for Pattern 3
Vertical Sweep Repetition Number for CCD Region 0
Vertical Sweep Repetition Number for CCD Region 3
XV1SPAT Toggle Position 3
XV1SPAT Toggle Position 4
XV2SPAT Toggle Position 3
XV2SPAT Toggle Position 4
XV3SPAT Toggle Position 3
XV3SPAT Toggle Position 4
XV4SPAT Toggle Position 3
XV4SPAT Toggle Position 4
Second V Pattern Output Position
Selected Second V-Pattern Group for VSG Active Line
AD9929
SYSTEM OVERVIEW
microprocessor, which resets internal counters and resynchronizes the VD and HD outputs.
Figure 7 shows the typical system block diagram for the
AD9929. The CCD output is processed by the AD9929’s AFE
circuitry, which consists of a CDS, VGA, black level clamp, and
an A/D converter. The digitized pixel information is sent to the
digital image processor chip, which performs post-processing
and compression. To operate the CCD, all CCD timing parameters are programmed into the AD9929 from the system
microprocessor through the 3-wire serial interface. From the
system master clock, CLI, provided by the image processor or
external crystal, the AD9929 generates all of the CCDs horizontal and vertical clocks and all internal AFE clocks. External
synchronization is provided by a SYNC pulse from the
CCDIN
The H-drivers for H1 to H2, and RG are included in the
AD9929, allowing these clocks to be directly connected to the
CCD. An H-drive voltage of up to 3.6 V is supported. The
AD9929 also includes the CCD vertical driver circuits for
creating the V1 to V4, and SUBCK outputs that allow direct
connection to the CCD. The AD9929 also provides programmable MSHUT and STROBE outputs, which may be used to
trigger mechanical shutter and strobe (flash) circuitry.
AD9929
CCD
V1
XV1
V2
XV2
VERTICAL
DRIVER
V3
V4
DOUT [11:0]
DCLK1
FD
XV3
HD, VD
XV4
VGATE
XVSG1
XVSG2
SUBCK
DIGITAL
IMAGE
PROCESSING
ASIC
TIMING
GENERATOR
CLI
XSUBCK
H1
H2
RG
µP
Figure 7. Typical System Block Diagram, Master Mode
Rev. A | Page 18 of 64
04593-0-008
MSHUT
STROBE
OUTCONT
SYNC
SERIAL
INTERFACE
VSUB
AD9929
MAXIMUM FIELD DIMENSIONS
THEORY OF OPERATION
MODES OF OPERATION
12-BIT HORIZONTAL COUNTER = 4096 PIXELS MAX
The AD9929 can be operated in either slave or master mode.
It defaults to slave mode operation at power-up. The
SLAVE_MODE register (Address 0xD6) can be used to
configure the AD9929 into master mode by setting
SLAVE_MODE = 0.
Slave Mode Operation
While operating in slave mode, VD, HD, and VGATE are provided externally from the image processor. VGATE is input
active high on Pin 45.
Unlike master mode operation, there is a 7 CLI clock cycle delay
from the falling edge of HD to when the 12-bit gray code H
counter is reset to 0 (See Figure 62).
Master Mode Operation
04593-0-009
11-BIT VERTICAL COUNTER = 2048 LINES MAX
Slave and Master Mode Operation
Figure 8. Horizontal and Vertical Counters
GRAY CODE REGISTERS
See Table 12 for a list of the AD9929 registers requiring gray
code values. The following is an example of applying a gray
code number for HDLEN using a line length of 1560 pixels:
While operating in master mode, VD and HD are outputs
and the SYNC/VGATE pin is configured for an external
SYNC input. Master mode is selected by setting register
SLAVE_MODE (Address 0x06) = 0.
HDLEN = (1560–4) = 155610 (see Special Note about the
HDLEN Register section).
HORIZONTAL AND VERTICAL COUNTERS
Figure 8 and Figure 9 show the horizontal and vertical counter
dimensions for the AD9929. All internal horizontal and vertical
clocking is programmed using these dimensions to specify line
and pixel locations.
CLI INPUT CLOCK DIVIDER
The AD9929 provides the capability of dividing the CLI input
clock using Register CLKDIV (Address 0xD5). The following
procedure must be followed to reset the AFE and digital circuits
when CLKDIV is reprogrammed back to 0 from CLKDIV = 1,
2, or 3. The DCLK1 output becomes unstable if this procedure
isn’t followed.
Where 155610 = Address 0x51E
The gray code value of Address 0x51E would be programmed in
the 12-bit HDLEN register.
Table 12. AD9929 Gray Code Registers
Register Name
HDLEN
CLPOBTOG1
CLPOBTOG2
HDLASTLEN
Register Type
System_Reg(12)
System_Reg(15)
System_Reg(16)
Mode_Reg(1)
Step 1: CLKDIV = 1, 2, or 3 (CLI divided by setting value)
Step 2: CLKDIV = 0 (CLI reprogrammed for no division)
Step 3: DIGSTBY = AFESTBY = 0
Step 4: DIGSTBY = AFESTBY = 1
MAX VD LENGTH IS 2048 LINES
VD
MAX HD LENGTH IS 4095 PIXELS
HD
04593-0-010
CLI
Figure 9. Maximum VD/HD Dimensions
Rev. A | Page 19 of 64
AD9929
SERIAL INTERFACE TIMING
writing to the system registers, SDATA contains the 8-bit
Address 0x14, followed by Number Writes N [23:0], followed by
the Sys_Reg [31:0] data, as shown in Figure 5. The system
register map is listed in Table 9.
All of the internal registers of the AD9929 are accessed through
a 3-wire serial interface. The 3-wire interface consists of a clock
(SCK), serial load (SL), and serial data (SDATA).
The AD9929 has three different register types that are configured by the 3-wire serial interface. As described in Table 13,
the three register types are control registers, system registers,
and mode registers.
The value of the Number Writes N [23:0] word determines one
of two options when writing to the system registers. If Number
Writes N[23:0] = 0x000000, the device enters a mode where it
expects all 17 Sys_Reg [31:0] data-words to be clocked in before
SL is asserted high. If the Number Writes N [23:0] is decoded as
some number N other than 0x000000, then the device expects
N number of registers to be programmed, where N equals the
value of Number Writes N [23:0]. For example: if Number
Writes N[23:0] = 0x000004, the device would expect data to be
provided for Sys_Reg [3:0]. In all cases, the system registers are
written beginning with Sys_Reg [0], regardless of the value of
Number Writes N [23:0]. Note that SL can be brought high or
low during access to system registers, as shown in Figure 11.
Table 13. Types of Serial Interface Registers
Register
Control
Address
0x00 to
0xD6
System
0x14
Mode_A
0x15
Mode_B
0x16
Number of Registers
24-Bit Registers at Each Address. Not All
Addresses Are Used. See Table 8.
Seventeen 32-Bit System Registers at
Address 0x14. See Table 9.
Eight 32-bit Mode_A Registers at Address
0x15. See Table 10.
Eight 32-Bit Mode_B Registers at Address
0x16. See Table 11.
Registers
Mode_A and Mode_B Register Serial Interface
There are eight 32-bit Mode_A and eight 32-bit Mode_B
registers that get accessed sequentially at Address 0x15 and
Address 0x16, respectively. Mode_A and Mode_B registers are
written to in exactly the same way as the system registers, as
explained previously. The mode registers are listed in Table 10
and Table 11.
Control Register Serial Interface
The control register 3-wire interface timing requirements are
shown in Figure 10. Control data must be written into the
device one address at a time due to the noncontiguous address
spacing for the control registers. This requires writing 8 bits of
address data followed by 24 bits of configuration data between
each active low period of SL for each address. The SL signal
must be kept high for at least one full SCK cycle between
successive writes to control registers.
To change operation between Mode_A and Mode_B, set the
1-bit mode register (Address 0x0A). The desired Mode_A
(Address 0x15) or Mode_B (Address 0x16) data must be
programmed into the Mode_A or Mode_B registers before
changing the mode bit.
System Register Serial Interface
There are seventeen 32-bit system registers that are accessed
sequentially at Address 0x14, beginning with Sys_Reg [0]. When
SDATA
A7
A6
tDS
A5
A4
A3
A2
A1
3
4
5
6
7
A0
D23
D22
D21
9
10
11
....
D3
D2
D1
D0
tDH
....
SCK
1
2
8
29
tLS
30
31
32
tLH
NOTES
1. SDATA BITS ARE INTERNALLY LATCHED ON THE RISING EDGES OF SCK.
2. SYSTEM UPDATE OF LOADED REGISTERS OCCURS ON SL RISING EDGE.
3. THIS TIMING PATTERN MUST BE WRITTEN FOR EACH REGISTER WRITE WITH SL REMAINING HIGH FOR AT
LEAST ONE FULL SCK PERIOD BEFORE ASSERTING SL LOW AGAIN FOR THE NEXT REGISTER WRITE.
Figure 10. 3-Wire Serial Interface Timing for Control Registers
Rev. A | Page 20 of 64
04593-0-011
SL
AD9929
8 BIT ADDRESS
NUMBER OF 32 BIT
DATA WRITES (N)
DATA 1 [31:0]
DATA 2 [31:0]
1
1
D2
D1
D0
D3
D30
D29
DATA N [31:0]
D31
D2
D1
D0
D3
DATA 2 [31:0]
D30
D29
D2
D1
D0
D31
D3
D30
D29
DATA 1 [31:0]
N1
N0
D31
N2
N3
N20
N22
N21
NUMBER WRITES N [23:0]
N23
A1
A0
A4
A3
A2
SDATA
A7
A6
A5
ADDRESS [7:0]
DATA N [31:0]
SCK
12
NOTES
1. SL PULSES ARE IGNORED UNTIL THE LSB BIT OF THE LAST DATA N WORD IS CLOCKED IN.
2. VALID SL PULSE. SL MUST BE ASSERTED HIGH WHEN ALL SDI DATA TRANSMISSIONS HAVE BEEN FINISHED.
04539-0-012
SL
Figure 11. System and Mode Register Writes
OPERATION OF VD SYNCHRONOUS
TYPE REGISTER WRITES BEGIN AT
THE NEXT VD FALLING EDGE.
VD
HD
CLI
04539-0-013
PROGRAMMING VD SYNCHRONOUS
TYPE REGISTERS MUST BE
COMPLETED AT LEAST 4 CLI
CYCLES BEFORE THE FALLING
EDGE OF VD
Figure 12. VD Synchronous Type Register Writes
VD Synchronous and Asynchronous Register Operation
VD Synchronous Register Operation
There are two types of control registers, VD synchronous and
VD asynchronous, as indicated in the address column of
Table 8. Register writes to synchronous and asynchronous
registers operate differently, as described in the following
sections. All writes to system Mode_A and Mode_B registers
occur asynchronously.
For VD synchronous registers, SDATA data is temporarily
stored in a buffer register at the rising edge of SL. This data is
held in the buffer register until the next falling edge of VD is
applied. Once the next falling edge of VD occurs, the buffered
SDATA data is loaded into the serial register, at which time the
register operation begins. See Figure 12.
Asynchronous Register Operation
For VD asynchronous register writes, SDATA data is stored
directly into the serial register at the rising edge of SL. As a
result, register operation begins immediately after the rising
edge of SL.
All control registers at the following addresses are VD synchronous type registers: Addresses 0x0A, 0x0B, 0x0C, 0x0D, and
0x0E. Also see Table 8, the Control Register Address Map.
Rev. A | Page 21 of 64
AD9929
DC Restore
ANALOG FRONT END DESCRIPTION AND
OPERATION
The AD9929 AFE signal processing chain is shown in Figure 13.
Each processing step is essential in achieving a high quality
image from the raw CCD pixel data. Registers for the AD9929
AFE section are listed in Table 14.
To reduce the large dc offset of the CCD output signal, a dcrestore circuit is used with an external 0.1 µF series coupling
capacitor. This restores the dc level of the CCD signal to
approximately 1.5 V, to be compatible with the 3 V analog
supply of the AD9929.
Table 14. AFE Registers
Correlated Double Sampler
Bit
Width
10
Register Type
Control (Address 0x0E)
REFBLACK
6
Control (Address 0x04)
AFESTBY
1
Control (Address 0x05)
The CDS circuit samples each CCD pixel twice to extract the
video information and reject low frequency noise. The timing
shown in Figure 16 illustrates how the two internally generated
CDS clocks, SHP and SHD, are used to sample the reference and
data levels, respectively, of the CCD signal. The placement of the
SHP and SHD sampling edges is determined by the setting of
the SHPLOC (Address 0x02) and SHDLOC (Address 0x02)
registers. Placement of these two clock edges is critical in
achieving the best performance from the CCD.
Description
VGA Gain
Black Clamp
Level
AFE Standby
1.0µF
REFT
1.0V
2.0V
DC RESTORE
INTERNAL
VREF
1.5V
SHP
SHD
CCDIN
10
VGA GAIN
REGISTER
OUTPUT
DATA
LATCH
ADC
VGA
CDS
DOUT
PHASE
2V FULL
SCALE
6dB TO 40dB
0.1µF
1.0µF
REFB
12
DOUT
OPTICAL BLACK
CLAMP
8-BIT
DAC
CLPOB
DIGITAL
FILTER
8
SHP
DOUT
SHD PHASE
PRECISION
TIMING
GENERATION
CLPOB
V-H
TIMING
GENERATION
Figure 13. AFE Block Diagram
Rev. A | Page 22 of 64
CLAMP LEVEL
REGISTER
04593-0-014
Register
Name
VGAGAIN
AD9929
Variable Gain Amplifier
A/D Converter
The VGA provides a gain range of 6 dB to 40 dB, programmable
with 10-bit resolution through the serial digital interface. The
minimum gain of 6 dB is needed to match a 1 V input signal
with the ADC full-scale range of 2 V.
The AD9929 uses high-performance 12-bit ADC architecture,
optimized for high speed and low power. Differential Nonlinearity (DNL) performance is typically better than 0.5 LSB.
The ADC uses a 2 V input range. Better noise performance
results from using a larger ADC full-scale range.
The VGA gain curve follows a “linear-in-dB” characteristic. The
exact VGA gain can be calculated for any gain register value by
using the equation
The AD9929 generates flexible, high speed timing signals using
the precision timing core. This core is the foundation for generating the timing used for both the CCD and the AFE: the reset
gate RG, horizontal drivers H1 to H2, and the CDS sample
clocks. A unique architecture makes it routine for the system
designer to optimize image quality by providing precise control
over the horizontal CCD readout and the AFE correlated
double sampling.
Gain = (0.035 × Code) + 5.2
where the code range is 0 to 1023. Figure 14 shows a typical
AD9929 VGA gain curve.
42
36
VGA GAIN (dB)
PRECISION TIMING, HIGH SPEED TIMING
GENERATION
30
Timing Resolution
24
18
6
0
127
255
383
511
639
767
VGA GAIN REGISTER CODE
895
1023
04593-0-015
12
Figure 14. VGA Gain Curve
The precision timing core uses the master clock input (CLI) as a
reference. This clock should be the same as the CCD pixel clock
frequency. Figure 15 illustrates how the internal timing core
divides the master clock period into 48 steps or edge positions.
Using a 36 MHz CLI frequency, the edge resolution of the
precision timing core is 0.58 ns. A 72 MHz CLI frequency can
be applied to the AD9929, where the AD9929 will internally
divide the CLI frequency by two. Division by 1/3 and 1/4 are
also provided. CLI frequency division is controlled by using
CLKDIV (Address 0x05) register.
Optical Black Clamp
High Speed Clock Programmability
The optical black clamp loop is used to remove residual offsets
in the signal chain and to track low frequency variations in the
CCD’s black level. During the optical black (shielded) pixel
interval on each line, the ADC output is compared with a fixed
black level reference selected by the user in the clamp level
register. Any value between 0 LSB and 255 LSB may be programmed with 8-bit resolution. The resulting error signal is
filtered to reduce noise, and the correction value is applied to
the ADC input through a D/A converter. Normally, the optical
black clamp loop is turned on once per horizontal line, but this
loop can be updated more slowly to suit a particular application.
Figure 17 shows how the high speed clocks RG, H1 to H2, SHP,
and SHD are generated. The RG pulse has a fixed rising edge
and a programmable falling edge. The horizontal clock H1 has a
programmable rising and a fixed falling edge occurring at
H1POSLOC + 24 steps. The H2 clock is always the inverse of
H1. Table 14 summarizes the high speed timing registers and
the parameters for the high speed clocks. Each register is 6 bits
wide with the 2 MSB bits used to select the quadrant region, as
outlined in Table 16. Figure 17 shows the range and default
locations of the high speed clock signals.
The optical black clamp is controlled by the CLPOB signal,
which is fully programmable (see Horizontal Clamping and
Blanking section). System timing examples are shown in the
Horizontal and Vertical Synchronous Timing section. The
CLPOB pulse should be placed during the CCDs optical black
pixels. It is recommended that the CLPOB pulse duration be at
least 20 pixels wide. Shorter pulse widths may be used, but the
ability to track low frequency variations in the black level is
reduced.
In addition to the programmable timing positions, the AD9929
features on-chip output drivers for the RG and H1 to H2 outputs. These drivers are powerful enough to directly drive the
CCD inputs. The H-driver current can be adjusted for optimum
rise/fall time into a particular load by using the H1DRV and
H2DRV registers (Address 0x04). The RG drive current is
adjustable using the RGDRV register (Address 0x04). The
H1DRV and H2DRV register is adjustable in 4.3 mA increments. The RGDRV register is adjustable in 2.15 mA increments. All DRV registers have settings of 0 equal to OFF or
three-state, and a maximum setting of 7.
H DRIVER AND RG OUTPUTS
Rev. A | Page 23 of 64
AD9929
As shown in Figure 17, the H2 output is the inverse of H1. The
internal propagation delay resulting from the signal inversion is
less than 1 ns, which is significantly less than the typical rise
P[0]
POSITION
P[12]
time driving the CCD load. This results in a H1/H2 crossover
voltage at approximately 50% of the output swing. The
crossover voltage is not programmable.
P[24]
P[36]
P[48] = P[0]
CLI
tCLIDLY
04593-0-016
1 PIXEL
PERIOD
NOTES
1. PIXEL CLOCK PERIOD IS DIVIDED INTO 48 POSITIONS, PROVIDING FINE EDGE RESOLUTION FOR HIGH SPEED CLOCKS.
2. THERE IS A FIXED DELAY FROM THE CLI INPUT TO THE INTERNAL PIXEL PERIOD POSITIONS (tCLIDLY = 6ns TYP).
Figure 15. High Speed Clock Resolution from CLI Master Clock Input
3
CCD
SIGNAL
4
CDS
(INTERNAL)
1
2
RG
5
6
H1
PROGRAMMABLE CLOCK POSITIONS
1. RG RISING EDGE (FIXED EDGE AT 000000)
2. RG FALLING EDGE (RGNEGLOC (ADDRESS 0x03))
3. SHP SAMPLE LOCATION (SHPLOC (ADDRESS 0x02))
4. SHD SAMPLE LOCATION (SHDLOC (ADDRESS 0x02))
5. H1 RISING EDGE LOCATION (H1POSLOC (ADDRESS 0x03))
6. H1 NEGATIVE EDGE LOCATION (FIXED AT (H1POSLOC + 24 STEPS))
7. H2 IS ALWAYS THE INVERSE OF H1
04593-0-017
H2
Figure 16. High Speed Clock Programmable Locations
Table 15. RG, H1, SHP, SHD, DCLK, and DOUTPHASE Timing Parameters
Register Name
RGNEGLOC1
H1POSLOC1
SHPLOC1
SHDLOC1
DOUTPHASE1
DCLKPHASE
1
Bit Width
6b
6b
6b
6b
6b
6b
Register Type
Control (Address 0x03)
Control (Address 0x03)
Control (Address 0x02)
Control (Address 0x02)
Control (Address 0x02)
Control (Address 0x02)
Range
0 to 47 Edge Location
0 to 47 Edge Location
0 to 47 Edge Location
0 to 47 Edge Location
0 to 47 Edge Location
0 to 47 Edge Location
The two MSB bits are used to select the quadrant
Rev. A | Page 24 of 64
Description
Falling Edge Location for RG
Positive Edge Location for H1
Sample Location for SHP
Sample Location for SHD
Phase Location of Data Output [9:0]
Positive Edge of DCLK 1
AD9929
Table 16. Precision Timing Edge Locations for RG, H1, SHP, SHD, DCLK, and DOUTPHASE
Signal Name
RG
Quadrant
I
II
III
IV
RG Rising Edge
(Not Programmable)
fixed at 000000
fixed at 000000
fixed at 000000
fixed at 000000
Signal Name
H1
Quadrant
I
II
III
IV
H1POSLOC
000000 to 001011
010000 to 011011
100000 to 101011
110000 to 111011
Signal Name
CDS
Quadrant
I
II
III
IV
CDS Rising Edge
SHPLOC
Quadrant Range
P[0] to P[11]
000000 to 001011
P[12] to P[23]
010000 to 011011
P[24] to P[35]
100000 to 101011
P[36] to P[47]
110000 to 111011
Signal Name
Data Output [9:0]
Quadrant
I
II
III
IV
Data Output[9:0] Rising Edge
DOUTPHASE
Quadrant Range
P[0] to P[11]
000000 to 001011
P[12] to P[23]
010000 to 011011
P[24] to P[35]
100000 to 101011
P[36] to P[47]
110000 to 111011
Signal Name
DCLK1
DCLKPHASE Value
00
01
10
11
RGNEGLOC
000000 to 001011
010000 to 011011
100000 to 101011
H1 Rising Edge
Quadrant Range
P[0] to P[11]
P[12] to P[23]
P[24] to P[35]
P[36] to P[47]
DCLK PHASE Rising Edge
P[6]
P[16]
P[26]
P[36]
Rev. A | Page 25 of 64
RG Falling Edge
Quadrant Range
P[0] to P[11]
P[12] to P[23]
P[24] to P[35]
P[36] to P[47]
H1 Falling Edge
(Not Programmable)
H1POSLOC + 24 Steps
H1POSLOC + 24 Steps
H1POSLOC + 24 Steps
H1POSLOC + 24 Steps
CDS Falling Edge
SHDLOC
Quadrant Range
P[0] to P[11]
000000 to 001011
P[12] to P[23]
010000 to 011011
P[24] to P[35]
100000 to 101011
P[36] to P[47]
110000 to 111011
Data Output[9:0] Falling Edge
(Not Programmable)
DOUTPHASE + 24 Steps
DOUTPHASE + 24 Steps
DOUTPHASE + 24 Steps
DOUTPHASE + 24 Steps
DCLKPHASE Falling Edge
P[26]
P[36]
P[06]
P[16]
AD9929
P[0]
POSITION
P[12]
P[24]
P[36]
P[48] = P[0]
PIXEL
PERIOD
RGr[0]
RGf[12]
RG
Hf[24]
Hr[0]
H1
CDS
(INTERNAL)
tS1
SHP[20]
04593-0-018
SHD[40]
CCD
SIGNAL
NOTES
1. ALL SIGNAL EDGES ARE FULLY PROGRAMMABLE TO ANY OF THE 48 POSITIONS WITHIN ONE PIXEL PERIOD.
2. DEFAULT POSITIONS FOR EACH SIGNAL ARE SHOWN.
Figure 17. High Speed Clock Default and Programmable Locations
tRISE
H1
H2
tPD < tRISE
tPD
H2
04593-0-019
H1
FIXED CROSSOVER VOLTAGE
Figure 18. H-Clock Inverse Phase Relationship
P[0]
P[12]
P[24]
P[36]
P[48] = P[0]
PIXEL
PERIOD
DCLK1
tOD
NOTES
1. DCLK1 PHASE IS ADJUSTED BY SETTING THE DCLKPHASE REGISTER (ADDRESS 0x02)
2. DOUT PHASE CAN BE ADJUSTED BY SETTING THE DOUTPHASE REGISTER (ADDRESS 0x02)
04593-0-020
DOUT
Figure 19. Digital Output Phase Adjustment
DIGITAL DATA OUTPUTS
The AD9929 DOUT[11:0] and DCLK phases are independently
programmable using the DOUTPHASE register (Address 0x02)
and DCLKPHASE register (Address 0x02). Refer to Figure 19.
Rev. A | Page 26 of 64
AD9929
EXTERNAL SYNCHRONIZATION (MASTER MODE)
External synchronization can be applied to synchronize the VD
and HD signals by applying an external pulse on the
SYNC/GATE (Pin 45) pin for master mode operation. The
SYNC/GATE pin is configured as an external SYNC input for
master mode operation by setting the SLAVE_MODE register
(Address 0xD6) = 0 (the AD9929 defaults to slave mode at
power-up).
SYNCCNT (Address 0x0A) and SYNCPOL (Address 0x01) are
the only two registers used for configuring the AD9929 for
external synchronization. The SYNCPOL is a 1-bit register used
for configuring the SYNC input as either active low or active
high. The AD9929 defaults to active low at power-up. The
function of the SYNCCNT register is described in Table 17.
Figure 20 and Figure 21 provide two examples of external
synchronization with SYNCPOL = 0.
4 CLI
Table 17. External Synchronization (Master Mode)
SYNCCNT
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
External Synchronization Options
Disable External Synchronization
VD Sync at every SYNC Pulse
VD Sync after 2nd Applied SYNC Pulse
VD Sync after 3rd Applied SYNC Pulse
VD Sync after 4th Applied SYNC Pulse
VD Sync after 5th Applied SYNC Pulse
VD Sync after 6th Applied SYNC Pulse
VD Sync after 7th Applied SYNC Pulse
VD Sync after 8th Applied SYNC Pulse
VD Sync after 9th Applied SYNC Pulse
VD Sync after 10th Applied SYNC Pulse
VD Sync after 11th Applied SYNC Pulse
VD Sync after 12th Applied SYNC Pulse
VD Sync after 13th Applied SYNC Pulse
VD Sync after 14th Applied SYNC Pulse
VD Sync after 1st Applied SYNC Pulse Only
4 CLI
4 CLI
VD
SYNC
2 CLIMIN
CHANGE TO MODE B
OPERATION
MODE
MODE A
04593-0-021
SERIAL
WRITES
MODE B
Figure 20. Example of Synchronization with SYNCPOL = 0 and SYNCCNT = 1
4 CLI
4 CLI
4 CLI
VD
04593-0-022
SYNC
2 CLIMIN
Figure 21. Example of Synchronization with SYNCPOL = 0 and CYNCCNT = 3
Rev. A | Page 27 of 64
AD9929
HORIZONTAL AND VERTICAL SYNCHRONOUS TIMING
SPECIAL NOTE ABOUT THE HDLEN REGISTER
The HD and VD output pulses are programmable using the
registers listed in Table 18. The HD output is asserted low at the
start of the horizontal line shift. The VD output is asserted low
at the start of each line. As shown in Figure 22, the 11-bit VD
counter is used to count the number of lines set by the VDLEN
register. The 12-bit HD counter is used to count the number of
pixels in each line set by the HDLEN register. For example, if
the CCD array size is 2000 lines by 2100 pixels per line,
VDLEN = 2000 and HDLEN = 0xC28. The HDLEN register
sets HL as a reference for the rising edge of the HD pulse.
The 12-bit HD counter value must be programmed using a gray
code number. There is also a 4-clock cycle, set up period that
must be considered when determining the HDLEN register
value, as shown in Figure 22. As a result of the 4-clock cycle,
setup period, the value of HDLEN is always equal to the actual
number of pixels per line minus 4. For example, if there are
2100 pixels per line, HDLEN equals (2100 – 4) = 2096. The gray
code value of 2096 is 0xC28, which is what would be programmed in the HDLEN register.
Table 18. HD and VD Registers
Register Name
HDLEN1
HLEN
HDRISE
HDLASTLEN1
VDLEN
VDRISE
Reference
Counter
–
–
HL
HD
–
VD
Register Type
Sys_Reg(12)
Sys_Reg(12)
Sys_Reg(16)
Mode_Reg(1)
Mode_Reg(1)
Sys_Reg(16)
Range
0–4095 Pixels
0–1023 Pixels
0–1023 Pixels
0–4095 Pixels
0–2047 Lines
0–15 Lines
Description
12-Bit Gray Code Counter Value
10-Bit HL-Counter Value
HD Rise Position
HD Last Line Length
VD Counter Value
VD Rise Position
Register value must be a gray code number (see Gray Code Registers section).
VDLEN
11-BIT
VD COUNTER
000
HDLEN
12-BIT
GRAY COUNTER
+ SET- UP
001
002
SET-UP
_ 2048
N<
HDLASTLEN
HLEN
10-BIT
HL COUNTER
2
VD
HD
1
LINE LENGTH =
HDLEN + 4
04593-0-023
1
Bit
Width
12
10
10
12
11
4
NOTES
1. THE SET-UP DELAY IS 4 CLI CYCLES. THE ACTUAL LENGTH OF ONE LINE IS 4 MORE CYCLES
THAN VALUE SET IN HDLEN AND HDLASTLEN DUE TO SET-UP DELAY.
2. VDRISE REFERENCES THE 11-BIT VD-COUNTER.
3. HDRISE REFERENCES THE 10-BIT HL-CONTER.
PROGRAMMABLE CLOCK POSITIONS
1. HDRISE (SYS_REG(16))
2. VDRISE (SYS_REG(16))
Figure 22. VD and HD Horizontal Timing
Rev. A | Page 28 of 64
AD9929
HORIZONTAL CLAMPING AND BLANKING
The AD9929’s horizontal clamping and blanking pulses are
programmable to suit a variety of applications. As with the
vertical timing generation, individual sequences are defined for
each signal, which are then organized into multiple regions
during image readout. This allows the dark pixel clamping and
blanking patterns to be changed at each stage of the readout, in
order to accommodate different image transfer timing and high
speed line shifts.
The length of the last HD line is set using the HDLASTLEN
register (Sys_Reg(1)). Figure 23 shows how no CLPOB pulse is
asserted when the last HD length set by HDLASTLEN is shorter
than the regular HD length set by HDLEN. Figure 24 shows
how no CLPOB pulse is applied when the last HD length set by
HDLASTLEN is longer than the regular HD length. Note that
the CLPOB pulse is applied in the last line only when
HDLASTLEN = HDLEN.
The AFE horizontal CLPOB pulse is generated based on the
12-bit gray code counter. Once the length of the 12-bit gray
code counter is set using the HDLEN register (Sys_Reg(12)),
the CLPTOG1 and CLPTOG2 registers (Sys_Reg(15 and 16))
can be used to place the CLPOB pulse location, as shown in
Figure 25. Table 19 lists all CLPOB registers that are used to
configure and control the placement and output of the
CLPOB pulse.
CLPOB
LAST LINE
Figure 23. Last HD Shorter than Regular HD
LAST LINE
Figure 24. Last HD Longer than Regular HD
Table 19. CLPOB Registers
Bit
Width
1
1
Register Type
Control (0x01)
Control (0x01)
Counter
Reference
–
–
CLPTOG1
12
Sys_Reg (15)
HD
CLPTOG2
12
CLPEN0
1
Sys_Reg
(15 and 16)
Mode_Reg (2)
–
CLPEN1
1
Mode_Reg (2)
–
CLPEN2
1
Mode_Reg (2)
–
CLPEN3
1
Mode_Reg (2)
–
CLPEN4
1
Mode_Reg (2)
–
HD
Range
0 to 4095 pixel
locations
0 to 4095 pixel
locations
Description
CLPOB Control (0=CLPOB off, 1 =CLPOB On)
CLPOB CCD Region Control
(0 = Enable CLPENx Register Settings, 1 = Disable
CLPENx Register Settings)
CLPOB Toggle Position 1 (Gray Code Number)
CLPOB Toggle Position 2 (Gray Code Number)
CLPOB Control for CCD Region 0
(0 = CLPOB Disabled, 1 = CLPOB Enabled)
CLPOB Control for CCD Region 1
(0 = CLPOB Disabled, 1 = CLPOB Enabled)
CLPOB Control for CCD Region 2
(0 = CLPOB Disabled, 1 = CLPOB Enabled)
CLPOB Control for CCD Region 3
(0 = CLPOB Disabled, 1 = CLPOB Enabled)
CLPOB Control for CCD Region 4
(0 = CLPOB Disabled, 1 = CLPOB Enabled)
Rev. A | Page 29 of 64
04953-0-025
HD
CLPOB
Register
Name
CLPOB_CONT
CLPOB_MODE
04593-0-024
HD
CONTROLLING CLPOB CLAMP PULSE TIMING
AD9929
VD
HD
12-BIT
GRAY COUNTER
+ SET-UP
1
2
04593-0-026
CLPOB
PROGRAMMABLE CLOCK POSITIONS
1. CLPTOG1 (SYS_REG (15))
2. CLPTOG2 (SYS_REG (15 AND 16))
Figure 25. Location of CLPOB using CLPTOG1 and CLPTOG2 Registers.
VD
HD
0
1
2
3
4
5
6
7
8
9
10
11
13
12
14
15
16
CLPOB
CLPMASK
(INTERNAL)
A
1
2
B
3
4
5
NOTES
1. THE INTERNAL CLPMASK SIGNAL EXTENDS ONE EXTRA HD CYCLE FROM WHEN THE CLPMASK PERIOD CHANGES FROM LOW TO HIGH.
AS A RESULT, ONE ADDITIONAL CLPOB PULSE IS MASKED AS SHOWN AT POSITIONS A AND B.
04593-0-027
PROGRAMMING POSITIONS
1. SCP0 = 0 (FIXED), CLPEN0 = 1
2. SCP1 = 3, CLPEN1 = 0
3. SCP2 = 4, CLPEN2 = 1
4. SCP3 = 5, CLPEN3 = 0
5. SCP4 = 1, CLPEN4 = 1
Figure 26. CLPOB Outputs with CLPMODE = 0
Table 20. SCP and CLPEN
CONTROLLING CLPOB CLAMP PULSE OUTPUTS
The registers in Table 19 are used for programming the CLPOB
pulse. The CLPOB pulse is disabled in all CCD regions by
setting CLPCNT = 0. The CLPTOGx (x = 0, 1) are used to set
the CLPOB toggle positions. The CLPENx (x = 0, 1, 2, 3, and 4)
are used to enable or disable the CLPOB pulse separately in
each CCD region when CLPMODE = 0. The CLPEN registers
have no effect if CLPMODE = 1. In this case, the CLPOB pulse
is asserted in all CCD regions, regardless of the value set in the
CLPENx registers.
Figure 26 shows an example of the CLPOB pulse being disabled
in CCD Regions 1 and 3 by setting CLPEN1 = 1 and
CLPEN3 =1. Note that the CLPOB pulse remains disabled in
the first line of the following CCD region.
SCP[4:1]1
SCP0
SCP1
SCP2
SCP3
SCP4
1
CLPEN[4:0]
CLPEN0
CLPEN1
CLPEN2
CLPEN3
CLPEN4
SCP0 is not a programmable register and therefore not listed in the register
map tables. SCP0 is a fixed sequence and always starts at the falling edge of
VD. Although this register is not programmable, the CLPEN0 register is still
used to set whether the CLPOB pulse is enabled or disabled for this SCP0
region.
Rev. A | Page 30 of 64
AD9929
H1 AND H2 BLANKING
Selective Positioning for Two H1 and H2 Outputs
The AD9929 provides three options for controlling the period
where H1 and H2 pulses get blanked. These options are normal
H blanking, selective positioning for 2 H1 and H2 outputs, and
extended blanking. In all cases, HBLKMASK is used to set the
polarity of H1 during the blanking period. Table 21 describes
the registers used to control H blanking.
For selective positioning operation, HPULSECNT = 1 and
HBLKMASK = 0 or 1. In this mode, two H1 pulses are output
during the blanking period. The location of these two pulse is
set using the HBLKPOS register, as shown in Figure 28.
Normal H-Blanking
For normal H-blanking operation, HPULSECNT = 0 and
BLKMASK = 0 or 1. The HBLKPOS register isn’t used in this
mode. Figure 27 shows one example where HBLKMASK = 0
and H1 and H2 are blanked while HD is low.
Extended Blanking
Extended blanking is enabled by setting HBLKEXT = 1. The
HBLKEXT register uses the 9-bit BL counter to suspend
operation of the HD and HL counters. This delays the blanking
period by the length set in the BLLEN register, as shown in
Figure 29.
Table 21. H1 Blanking Registers
Register
Name
Bit
Width
HBLKMASK
1
HPULSECNT
1
HBLKEXT
1
H1BLKRETIME
1
HBLKHPOS
10
2
Control (0x01)
Control (0x0A)
Control (0x0A)
Control (0x03)
Sys_Reg(11)
Description
Masking Polarity for H1 during Blanking Period1
(0 = Low, 1 = High)
H Pulse Control during Blanking Period
(0 = No Output during Blanking,1 = Output during Blanking ) H Pulse Blanking Extends
Control2
(0 = Extended Blanking Disabled, 1 = Extended Blanking Enabled)
Retimes the H1 HBLK to Internal Clock
(0 = Retiming Disabled, 1 = Retiming Enabled)
H1 Pulse ON Position during Blanking Period
H2 is always the opposite polarity of H1.
The HBLKEXT extend control extends the blanking period by the number of counts set in the BLLEN register for the 9-bit BL counter.
HD
HDRISE
HBLK
(INTERNAL)
1
H1
H2
RG
NOTES
1. THE RISING EDGE OF HBLK IS ALWAYS THE SAME AS HDRISE
Figure 27. Normal H-Blanking Operation HBLKMASK = 0, HPULSECNT = 0, HBLKHPOS = XXX
Rev. A | Page 31 of 64
04593-0-028
1
Register Type
AD9929
HD
HBLK
(INTERNAL)
H12
(INTERNAL)
RG
04593-0-029
H1
NOTES
1. H2 IS THE OPPOSITE POLARITY OF H1
Figure 28. Selective H-Blanking Operation HBLKMASK = 0, HPULSECNT = 1, HBLKHPOS = 003.
BLLEN
9-BIT
BL COUNTER
VD
HD
1
H1
2
NOTES
1. POSITIONS 1, 2, 3 AND 4 ARE DELAYED BY THE VALUE OF BL COUNTER
2. VSG1, VSG2, V1-4 AND SUBCK PULSES ARE NOT DELAYED BY BL COUNTER
Figure 29. VD, HD, H1 and H2 Extended Blanking Operation HBLKEXT = 1.
Rev. A | Page 32 of 64
4
04593-0-030
3
CLPOB
AD9929
VGATE MASKING OF XV1 TO XV4 AND CLPOB OUTPUTS
During slave mode operation, the SYNC/VGATE Pin 45 is
configured as an input for an external VGATE signal. While
operating in this mode, the external VGATE signal can be used
to mask the XV1 to XV4 and CLPOB outputs. There are two
options available for masking the XV1 to XV4 and CLPOB
outputs. These options are determined by the setting of the
MSHUT/VGATE_EN register located at Control Address 0x01.
Examples of these two options are shown in Figure 30 and
Figure 31. Figure 30 shows MSHUT/VGATE_EN = 0. In this
example, the VGATE signal is internally latched on the falling
edge of HD, resulting with the XV1 to XV4 and CLPOB outputs
being masked when the internally latched VGATE signal is
high.
Figure 31 shows MSHUT/VGATE_EN = 1. In this example, the
preprogrammed MSHUT signal blocks the VGATE input from
masking XV1 to XV4 and CLPOB outputs while MSHUT is low.
The internally latched VGATE signal only masks XV1 to XV4
and CLPOB when MSHUT is high, while operating in this
mode.
VD
HD
VGATE
(PIN #45)
VGATE
(INTERNAL)
CLPOB
XV1–XV4 AND CLPOB MASKED
XV1–XV4 AND CLPOB MASKED
04590-0-031
XV1–XV4
Figure 30. Example of VGATE Input Masking V1 to V4 and CLPOB Outputs with MSHUT/VGATE_EN = 0
VD
HD
VGATE
(PIN #45)
VGATE
(INTERNAL)
MSHUT
CLPOB
XV1–XV4 AND CLPOB MASKED
Figure 31. Example of VGATE Input Masking V1to V4 and CLPOB Outputs with MSHUT/VGATE_EN = 1
Rev. A | Page 33 of 64
04590-0-032
XV1–XV4
AD9929
VERTICAL TIMING GENERATION
The AD9929 provides a very flexible solution for generating
vertical CCD timing and can support multiple CCDs and
different system architectures. The 4-phase vertical transfer
clocks XV1 to XV4 are used to shift each line of pixels into the
horizontal output register of the CCD. The AD9929 vertical
outputs can be individually programmed into four different
vertical pulse patterns identified as VTP0, VTP1, VTP2, and
VTP3. Each vertical pulse pattern is a unique set of preconfigured XV1 to XV4 sequences. Once the vertical patterns have
been configured using the registers shown in Table 24, pointer
registers are used to select in which region of the CCD a
particular vertical pattern is output. The pointer registers are
described in Table 22.
Up to five unique CCD regions may be specified. Finally, the
readout of the entire field is constructed by combining one or
more of the individual regions sequentially. With up to five
regions available, different steps of the readout such as high
speed line shifts and vertical image transfer can be supported.
CREATING VERTICAL SEQUENCES
Figure 32 through Figure 34 provide an overview of how the
vertical timing is generated in four basic steps.
Step 2: Create the individual vertical sequences (see Figure 33).
Create the individual vertical sequences by assigning pulse
repetitions to patterns VTP0, VTP1, VTP2, and VTP3 using the
VTPREPx registers as shown in Table 25. The number of repetitions (VTPREPx) determines the number of pulse repetitions
desired within a single line. Programming 1 for VTPREPx gives
a single pulse, and setting to 0 provides a fixed dc output based
on the start polarity value. Figure 33 shows an example of a
VTPx sequence of two VTPx patterns by setting VTPREPx = 2.
Step 3: Output Vertical Sequences into CCD Regions (see
Figure 34).
The AD9929 arranges individual sequences into CCD regions
through the use of sequence pointers (VTPSEQPTRx) and
vertical transfer pattern select (VTPSELx) registers, as described
in Table 23. The VTPSEQPTRx registers are used to point to a
desired VTPSELx register whose value determines what VTPx
pattern is output on the XV1 to XV4 signals. For example, if
VTPSEQPTR0 = 1 and VTPSEL1 = 2, the VTP2 pulse pattern
would output while operating in Region 0 of the CCD.
Step 4: Combining CCD Regions (see Figure 34).
Step 1: Create the individual pulses for patterns VTP0, VTP1,
VTP2, and VTP3 (see Figure 32).
Build the entire field readout by combining multiple regions by
using mode registers SCP0, SCP1, SCP2, SCP3, and SCP4.
The registers shown in Table 22 are used to generate the
individual vertical timing pulses, as shown in Figure 32.
The individual CCD regions are combined into a complete field
readout by using sequence change position (SCPx) pointers as
described in Table 23. Figure 34 shows how each field is divided
into multiple regions. This allows the user to change vertical
timing during various stages of the image readout. The boundaries of each region are defined by the sequence change
position (SCP). Each SCP is a 8-bit value representing the line
number boundary region. A total of four SCPs allow up to five
different region areas in the field to be defined. The first SCP0 is
always hard-coded to line 0, and the remaining four SCPs are
register programmable.
The VTPLENx determines the number of pixels between pulse
repetitions. The start polarity (XVxSTARTPOLx) sets the
starting polarity of the vertical sequence and can be programmed high or low. The first toggle position (XVxTOG1POSx)
and second toggle position (XVxTOG2POSx) are the pixel
locations within the line where the pulse transitions.
Rev. A | Page 34 of 64
AD9929
0
100
50
200
150
250
300
350
400
HD
XV1
1
XV2
4
XV3
7
XV4
2
3
5
6
8
10
9
11
12
VTPLENx [8:0] = 210
2. XV1TOG1x [8:0] = 50
5. XV2TOG1x [8:0] = 30
8. XV3TOG1x [8:0] = 110
11. XV4TOG1x [8:0] = 20
3. XV1TOG2x [8:0] = 130
6. XV2TOG2x [8:0] = 150
9. XV3TOG2x [8:0] = 180
12. XV4TOG2x [8:0] = 160
04593-0-033
1. XV1STARTPOLx = 0
4. XV2STARTPOLx = 1
7. XV3STARTPOLx = 1
10. XV4STARTPOLx = 0
Figure 32. Step 1: Create Individual Vertical Pulses for VTP0, VTP1, VTP2, and VTP3 Patterns.
0
50
100
200
150
250
300
350
400
HD
1
XV2
4
XV3
7
XV4
10
2
3
5
6
8
11
9
12
04593-0-034
XV1
VTPLENx [8:0] = 210
Figure 33. Step 2: Create Individual Sequences for XV1 to XV4 Outputs by Assigning Pulse Repetitions to VTP0, VTP1, VTP2 and VTP3 Patterns.
This Example Shows VTPREPx = 2
Rev. A | Page 35 of 64
AD9929
SCP0
(FIXED AT LINE 0)
CCD REGION 0
VERTICAL TRANSFER PULSES
SCP1 [7:0]
CCD REGION 1
XV1
XV2
XV3
XV4
XV1
XV2
XV3
XV4
{
{
VTP0
VTP2
XV1
XV2
XV3
XV4
XV1
XV2
XV3
XV4
{
{
VTP1
SCP2 [7:0]
CCD REGION 2
VTP3
SCP3 [7:0]
CCD REGION 3
SCP4 [7:0]
CCD REGION 4
SCP 0
REGION 0
(FIXED AT LINE 0)
SCP 1
REGION 1
(LINE #4)
SCP 2
REGION 2
(LINE #7)
SCP 4
REGION 4
(LINE # (N + 7))
VD
HD
XV1
XV2
XV3
VTP0
VTPREP0 = 2
VTP0
VTPREP0 = 1
VTP2
VTPREP2 = 2
VTP1
VTPREP1 = 1
Figure 34. Steps 3 and 4: An Example of Building an Entire Field Readout by Assigning Sequences to Multiple CCD Regions
Rev. A | Page 36 of 64
04593-0-035
XV4
AD9929
Table 22. XV1 to XV4 Registers to Configure XXV1 to XXV4 Pulses for each VTP Pattern
Bit
Width
9
Register Type
Sys_Reg(1)
XV1STARTPOL0
1
Sys_Reg(1)
XV2STARTPOL0
1
Sys_Reg(1)
XV3STARTPOL0
1
Sys_Reg(1)
XV4STARTPOL0
1
Sys_Reg(1)
XV1TOG1POS0
XV1TOG2POS0
XV2TOG1POS0
XV2TOG2POS0
XV3TOG1POS0
XV3TOG2POS0
XV4TOG1POS0
XV4TOG2POS0
VTPLEN1
9
9
9
9
9
9
9
9
9
Sys_Reg(1)
Sys_Reg(1)
Sys_Reg(1 & 2)
Sys_Reg(2)
Sys_Reg(2)
Sys_Reg(2 & 3)
Sys_Reg(3)
Sys_Reg(3)
Sys_Reg(3)
XV1STARTPOL1
1
Sys_Reg(3)
XV2STARTPOL1
1
Sys_Reg(3)
XV3STARTPOL1
1
Sys_Reg(4)
XV4STARTPOL1
1
Sys_Reg(4)
XV1TOG1POS1
XV1TOG2POS1
XV2TOG1POS1
XV2TOG2POS1
XV3TOG1POS1
XV3TOG2POS1
XV4TOG1POS1
XV4TOG2POS1
VTPLEN2
9
9
9
9
9
9
9
9
9
Sys_Reg(4)
Sys_Reg(4)
Sys_Reg(4
Sys_Reg(4 & 5)
Sys_Reg(5)
Sys_Reg(5)
Sys_Reg(5 & 6)
Sys_Reg(6)
Sys_Reg(6)
XV1STARTPOL2
1
Sys_Reg(6)
XV2STARTPOL2
1
Sys_Reg(6)
XV3STARTPOL2
1
Sys_Reg(6)
XV4STARTPOL2
1
Sys_Reg(6)
XV1TOG1POS2
XV1TOG1POS2
XV1TOG2POS2
XV2TOG1POS2
XV3TOG1POS2
XV3TOG2POS2
XV4TOG1POS2
XV4TOG2POS2
9
9
9
9
9
9
9
9
Sys_Reg(6)
Sys_Reg(7)
Sys_Reg(7)
Sys_Reg(7)
Sys_Reg(7 & 8)
Sys_Reg(8)
Sys_Reg(8)
Sys_Reg(8)
Register Name
VTPLEN0
Reference
Counter
V Counter
Range
0–511
High/Low
High/Low
High/Low
High/Low
V Counter
V Counter
V Counter
V Counter
V Counter
V Counter
V Counter
V Counter
V Counter
0–511
0–511
0–511
0–511
0–511
0–511
0–511
0–511
0–512
High/Low
High/Low
High/Low
High/Low
V Counter
V Counter
V Counter
V Counter
V Counter
V Counter
V Counter
V Counter
V Counter
0–511
0–511
0–511
0–511
0–511
0–511
0–511
0–511
0–512
High/Low
High/Low
High/Low
High/Low
V Counter
V Counter
V Counter
V Counter
V Counter
V Counter
V Counter
V Counter
0–511
0–511
0–511
0–511
0–511
0–511
0–511
0–511
Rev. A | Page 37 of 64
Description
Length between Repetitions
XV1 Starting Polarity for VTP0
(0 = Low, 1 = High)
XV2 Starting Polarity for VTP0
(0 = Low, 1 = High)
XV3 Starting Polarity for VTP0
(0 = Low, 1 = High)
XV4 Starting Polarity for VTP0
(0 = Low, 1 = High)
XV1 Toggle Position 1 for VTP0
XV1 Toggle Position 2 for VTP0
XV2 Toggle Position 1 for VTP0
XV2 Toggle Position 2 for VTP0
XV3 Toggle Position 1 for VTP0
XV3 Toggle Position 2 for VTP0
XV3 Toggle Position 1 for VTP0
XV3 Toggle Position 2 for VTP0
Length between Repetitions
XV1 Starting Polarity for VTP1
(0 = Low, 1 = High)
XV2 Starting Polarity for VTP1
(0 = Low, 1 = High)
XV3 Starting Polarity for VTP1
(0 = Low, 1 = High)
XV4 Starting Polarity for VTP1
(0 = Low, 1 = High)
XV1 Toggle Position 1 for VTP1
XV1 Toggle Position 2 for VTP1
XV2 Toggle Position 1 for VTP1
XV2 Toggle Position 2 for VTP1
XV3 Toggle Position 1 for VTP1
XV3 Toggle Position 2 for VTP1
XV3 Toggle Position 1 for VTP1
XV3 Toggle Position 2 for VTP1
Length between Repetitions
XV1 Starting Polarity for VTP2
(0 = Low, 1 = High)
XV2 Starting Polarity for VTP2
(0 = Low, 1 = High)
XV3 Starting Polarity for VTP2
(0 = Low, 1 = High)
XV4 Starting Polarity for VTP2
(0 = Low, 1 = High)
XV1 Toggle Position 1 for VTP2
XV1 Toggle Position 1 for VTP2
XV1 Toggle Position 2 for VTP2
XV2 Toggle Position 1 for VTP2
XV3 Toggle Position 1 for VTP2
XV3 Toggle Position 2 for VTP2
XV3 Toggle Position 1 for VTP2
XV3 Toggle Position 2 for VTP2
VTP
Pattern
VTP0
VTP1
VTP2
AD9929
Bit
Width
Register Type
Reference
Counter
Range
Register Name
VTPLEN3
9
Sys_Reg(9)
V Counter
XV1STARTPOL3
1
Sys_Reg(9)
0–512
High/Low
XV2STARTPOL3
1
Sys_Reg(9)
XV3STARTPOL3
1
Sys_Reg(9)
XV4STARTPOL3
1
Sys_Reg(9)
XV1TOG1POS3
XV1TOG2POS3
XV2TOG1POS3
XV2TOG2POS3
XV3TOG1POS3
XV3TOG2POS3
XV4TOG1POS3
XV4TOG2POS3
9
9
9
9
9
9
9
9
Sys_Reg(9)
Sys_Reg(9)
Sys_Reg(9 &10)
Sys_Reg(10)
Sys_Reg(10)
Sys_Reg(10&11)
Sys_Reg(11)
Sys_Reg(11)
Description
High/Low
High/Low
High/Low
V Counter
V Counter
V Counter
V Counter
V Counter
V Counter
V Counter
V Counter
0–511
0–511
0–511
0–511
0–511
0–511
0–511
0–511
Length between Repetitions
XV1 Starting Polarity for VTP3
(0 = Low, 1 = High)
XV1 Starting Polarity for VTP3
(0 = Low, 1 = High)
XV1 Starting Polarity for VTP3
(0 = Low, 1 = High)
XV1 Starting Polarity for VTP3
(0 = Low, 1 = High)
XV1 Toggle Position 1 for VTP3
XV1 Toggle Position 2 for VTP3
XV2 Toggle Position 1 for VTP3
XV2 Toggle Position 2 for VTP3
XV3 Toggle Position 1 for VTP3
XV3 Toggle Position 2 for VTP3
XV3 Toggle Position 1 for VTP3
XV3 Toggle Position 2 for VTP3
VTP
Pattern
VTP3
Table 23. Mode_A and Mode_B Registers for VTPx Selection
Register
Name
Bit
Width
Register
Type
VTPSEQPTR01
3
Mode_Reg(2)
VTPSEQPTR11
3
Mode_Reg(2)
VTPSEQPTR21
3
Mode_Reg(2)
VTPSEQPTR31
3
Mode_Reg(2)
VTPSEQPTR41
3
Mode_Reg(2)
VTPSEL0
VTPSEL1
VTPSEL2
VTPSEL3
VTPREP0
VTPREP1
VTPREP2
VTPREP3
2
2
2
2
3
3
3
3
Mode_Reg(3)
Mode_Reg(3)
Mode_Reg(3)
Mode_Reg(3)
Mode_Reg(3)
Mode_Reg(4)
Mode_Reg(4)
Mode_Reg(4)
1
Range
0–7
0–7
0–7
0–7
Description
Vertical Transfer Pulse Pointer used in CCD Region 0 (0 = VTPSEL0, 1 = VTPSEL1,
2 = VTPSEL2, 3 = VTPSEL3, 4 = VTPSEL0 for Even Line and VTPSEL1 for
Odd Line, 5 = VTPSEL2 for Even Line and VTPSEL3 for Odd Line)
Vertical Transfer Pulse Pointer used in CCD Region 1 (0 = VTPSEL0, 1 = VTPSEL1,
2 = VTPSEL2, 3 = VTPSEL3, 4 = VTPSEL0 for Even Line and VTPSEL1 for
Odd Line, 5 = VTPSEL2 for Even Line and VTPSEL3 for Odd Line)
Vertical Transfer Pulse Pointer used in CCD Region 2 (0 = VTPSEL0, 1 = VTPSEL1,
2 = VTPSEL2, 3 = VTPSEL3, 4 = VTPSEL0 for Even Line and VTPSEL1 for
Odd Line, 5 = VTPSEL2 for Even Line and VTPSEL3 for Odd Line)
Vertical Transfer Pulse Pointer used in CCD Region 3 (0 = VTPSEL0, 1 = VTPSEL1,
2 = VTPSEL2, 3 = VTPSEL3, 4 = VTPSEL0 for Even Line and VTPSEL1 for
Odd Line, 5 = VTPSEL2 for Even Line and VTPSEL3 for Odd Line)
Vertical Transfer Pulse Pointer used in CCD Region 4 (0 = VTPSEL0, 1 = VTPSEL1,
2 = VTPSEL2, 3 = VTPSEL3, 4 = VTPSEL0 for Even Line and VTPSEL1 for
Odd Line, 5 = VTPSEL2 for Even Line and VTPSEL3 for Odd Line)
0 = VTP0, 1 = VTP1, 2 = VTP2, 3 = VTP3
0 = VTP0, 1 = VTP1, 2 = VTP2, 3 = VTP3
0 = VTP0, 1 = VTP1, 2 = VTP2, 3 = VTP3
0 = VTP0, 1 = VTP1, 2 = VTP2, 3 = VTP3
Number of VTP0 Pulse Repetitions within a Line
Number of VTP1 Pulse Repetitions within a Line
Number of VTP2 Pulse Repetitions within a Line
Number of VTP3 Pulse Repetitions within a Line
Register settings 6 and 7 are not used.
Table 24. Mode_A and Mode_B Registers for CCD Region Selection
Register Name
SCP1
SCP2
SCP3
SCP4
Bit Width
8
8
8
8
Register Type
Mode_Reg(2)
Mode_Reg(2)
Mode_Reg(2)
Mode_Reg(2)
Range
0–255 lines
0–255 lines
0–255 lines
0–255 lines
Rev. A | Page 38 of 64
Description
Sequence Change Position 1
Sequence Change Position 2
Sequence Change Position 3
Sequence Change Position 4
AD9929
SPECIAL VERTICAL SWEEP MODE OPERATION
The AD9929 contains a special mode of vertical timing operation called sweep mode. This mode is used to generate a
continuous number of repetitive vertical pulses that span
multiple HD lines. One example of where this mode may be
needed is at the start of the CCD readout operation. At the end
of the image exposure, but before the image is transferred by the
sensor gate pulses, the vertical interline CCD registers should be
clean of all charge. This can be accomplished by quickly shifting
out any charge with a long series of pulses on the V1 to V4
outputs. This operation spans multiple HD line lengths.
Normally the sequences are contained within one HD line
length but with the sweep mode enabled, the HD boundaries
will be ignored until the region is finished.
Control Address 0x0A is used to enable and configure the
special sweep mode operation, as described in Table 25.
The maximum number of repeats in each region is 2048 while
operating in this mode using the SVREP0 and SVREP3
Mode_Reg(4) registers.
Table 25. Description of SVREP_MODE Register
SVREP_MODE
0
0
1
1
The special vertical sweep mode operation is only output in
CCD Region 0 and CCD Region 3 (see Figure 34), as shown in
Figure 37 and Figure 38. The SVREP_MODE register located at
Description of Sweep Mode Operation
0
Normal Vertical Timing Operation in
all CCD Regions
1
Special Vertical Sweep Mode Timing
Output in CCD Region 0 Only
0
Special Vertical Sweep Mode Timing
Output in CCD Region 3 Only
1
Special Vertical Sweep Mode Timing
Output in CCD Region0 and CCD
Region 3
04593-0-036
HD
XV1–XV4
Figure 35. Nonoverlapping Example while Operating in Normal Vertical Timing Operation SVREP_MODE = 0 and VTPREPx = 4
HD
04593-0-037
NOT OUTPUT BECAUSE THE 8TH
REPETITION OVERLAPS WITH HD
XV1–XV4
Figure 36. Overlapping Example while Operating in Normal Vertical Timing Operation SVREP_MODE = 0 and VTPREPx = 8
SCP0
SCP1 = 3
CCD REGION 0
HD
1
2
0
04593-0-038
0
XV1–XV4
Figure 37. Sweep Mode Timing Example with SVREP_MODE = 1 and SVREP0 = 28
SCP3
SCP4 = 3
CCD REGION 3
HD
1
2
0
04593-0-039
0
XV1–XV4
Figure 38. Sweep Mode Timing Example with SVREP_MODE = 2 and SVREP3 = 28
Rev. A | Page 39 of 64
AD9929
SPECIAL VERTICAL TIMING (SPATS)
The AD9929 provides additional special vertical timing generation (SPATs), which is applied in the same line as the VSG
pulse. The SPAT timing allows for an additional vertical output
pulse in the VSG line. The additional vertical output pulse can
be applied to either XV1, XV2, XV3 or XV4, according to the
value of the SPATLOGIC register. Table 26 lists the registers
used to generate the SPATs, and Table 27 describes the
SPATLOGIC settings and operation.
Figure 39 and Figure 40 show AND and OR SPAT pulse
examples using four SPAT toggle positions. As shown in these
figures, the internal SPAT timing for the AND case initially
starts high and then goes low at the first XVxSPAT_TOG1
position. In the OR case, the internal SPAT timing initially starts
low and then toggles high at the first XVxSPAT_TOG1 position.
This provides the ability to output the second vertical pulse
when the internal XVx pulse is in both high and low states. Note
that although Figure 39 and Figure 40 show four SPAT toggle
positions, two SPAT toggle positions can be applied by setting
XVxSPAT_TOG3 = XVxSPAT_TOG4 = 0x1FFF.
Table 26. HD and VD Registers
Register Name
SPAT_EN
Bit
Width
1
Register Type
Control (Address 0x01)
Reference
Counter
–
SPATLOGIC
4
Control (Address 0x0A)
–
XV1SPAT_TOG1
13
Control (Address 0x17)
ST
0–8192
XV1SPAT_TOG2
13
Control (Address 0x18)
ST
0–8192
XV1SPAT_TOG3
13
Mode_A_Reg(5)
ST
0–8192
XV1SPAT_TOG4
13
Mode_A_Reg(5)
ST
0–8192
XV2SPAT_TOG1
13
Control (Address 0x19)
ST
0–8192
XV2SPAT_TOG2
13
Control (Address 0x1A)
ST
0–8192
XV2SPAT_TOG3
13
Mode_A_Reg(5)
ST
0–8192
XV2SPAT_TOG4
13
Mode_A_Reg(5)
ST
0–8192
XV3SPAT_TOG1
13
Control (Address 0x1B)
ST
0–8192
XV3SPAT_TOG2
13
Control (Address 0x1C)
ST
0–8192
XV3SPAT_TOG3
13
Mode_A_Reg(5)
ST
0–8192
XV3SPAT_TOG4
13
Mode_A_Reg(5)
ST
0–8192
XV4SPAT_TOG1
13
Control (Address 0x1D)
ST
0–8192
XV4SPAT_TOG2
13
Control (Address 0x1E)
ST
0–8192
XV4SPAT_TOG3
13
Mode_A_Reg(5)
ST
0–8192
XV4SPAT_TOG4
13
Mode_A_Reg(5)
ST
0–8192
XV1SPAT_TOG1
13
Control (Address 0x1F)
ST
0–8192
XV1SPAT_TOG2
13
Control (Address 0x20)
ST
0–8192
XV1SPAT_TOG3
13
Mode_B_Reg(5)
ST
0–8192
XV1SPAT_TOG4
13
Mode_B_Reg(5)
ST
0–8192
Range (Pixels)
Rev. A | Page 40 of 64
Description
SPAT Enable Control
(0 = SPAT Disabled, 1 = SPAT Enabled)
SPAT Logic Setting
XV1SPAT Toggle Position #1
(Mode_A Active)
XV1SPAT Toggle Position #2
(Mode_A Active)
XV1SPAT Toggle Position #3
(Mode_A Active)
XV1SPAT Toggle Position #4
(Mode_A Active)
XV2SPAT Toggle Position #1
(Mode_A Active)
XV2SPAT Toggle Position #2
(Mode_A Active)
XV2SPAT Toggle Position #3
(Mode_A Active)
XV2SPAT Toggle Position #4
(Mode_A Active)
XV3SPAT Toggle Position #1
(Mode_A Active)
XV3SPAT Toggle Position #2
(Mode_A Active)
XV3SPAT Toggle Position #3
(Mode_A Active)
XV3SPAT Toggle Position #4
(Mode_A Active)
XV4SPAT Toggle Position #1
(Mode_A Active)
XV4SPAT Toggle Position #2
(Mode_A Active)
XV4SPAT Toggle Position #3
(Mode_A Active)
XV4SPAT Toggle Position #4
(Mode_A Active)
XV1SPAT Toggle Position #1
(Mode_B Active)
XV1SPAT Toggle Position #2
(Mode_B Active)
XV1SPAT Toggle Position #3
(Mode_B Active)
XV1SPAT Toggle Position #4
(Mode_B Active)
AD9929
Register Name
Bit
Width
Register Type
Reference
Counter
Range (Pixels)
XV2SPAT_TOG1
13
Control (Address 0x21)
ST
0–8192
XV2SPAT_TOG2
13
Control (Address 0x22)
ST
0–8192
XV2SPAT_TOG3
13
Mode_B_Reg(5)
ST
0–8192
XV2SPAT_TOG4
13
Mode_B_Reg(5)
ST
0–8192
XV3SPAT_TOG1
13
Control (Address 0x23)
ST
0–8192
XV3SPAT_TOG2
13
Control (Address 0x24)
ST
0–8192
XV3SPAT_TOG3
13
Mode_B_Reg(5)
ST
0–8192
XV3SPAT_TOG4
13
Mode_B_Reg(5)
ST
0–8192
XV4SPAT_TOG1
13
Control (Address 0x25)
ST
0–8192
XV4SPAT_TOG2
13
Control (Address 0x26)
ST
0–8192
XV4SPAT_TOG3
13
Mode_B_Reg(5)
ST
0–8192
XV4SPAT_TOG4
13
Mode_B_Reg(5)
ST
0–8192
Table 27. SPATLOCIC Register (Address 0x0A)
SPATLOGIC[3:0]
3
2
XV4
XV3
SPAT Description
1
XV2
0
XV1
0 = OR, 1 = AND
Rev. A | Page 41 of 64
Description
XV2SPAT Toggle Position #1
(Mode_B Active)
XV2SPAT Toggle Position #2
(Mode_B Active)
XV2SPAT Toggle Position #3
(Mode_B Active)
XV2SPAT Toggle Position #4
(Mode_B Active)
XV3SPAT Toggle Position #1
(Mode_B Active)
XV3SPAT Toggle Position #2
(Mode_B Active)
XV3SPAT Toggle Position #3
(Mode_B Active)
XV3SPAT Toggle Position #4
(Mode_B Active)
XV4SPAT Toggle Position #1
(Mode_B Active)
XV4SPAT Toggle Position #2
(Mode_B Active)
XV4SPAT Toggle Position #3
(Mode_B Active)
XV4SPAT Toggle Position #4
(Mode_B Active)
AD9929
500
540
600
640
VD
HD
13-BIT
ST COUNTER
(FIXED)
INTERNAL XV2 WITHOUT
SPAT APPLIED
INTERNAL SPAT
TIMING FOR XV2 WITH
SPATLOGIC = 1
1
3
2
4
XV2 OUTPUT WITH
SPAT APPLIED
04593-0-040
XVSGx
VSG LINE
NOTES
1. THE XVxSPAT_TOG1 AND XVxSPAT_TOG2 REGISTERS REFERENCE THE 13-BIT ST COUNTER.
2. THE INTERNAL SPAT TIMING IS APPLIED IN THE SAME LINE AS THE XVSGx PULSE.
PROGRAMMABLE CLOCK POSITIONS
1. XVXSPAT_TOG1 (PROGRAMMABLE AT CONTROL REGS)
3. XVXSPAT_TOG3 (PROGRAMMABLE AT MODE_REGS)
2. XVXSPAT_TOG2 (PROGRAMMABLE AT CONTROL REGS)
4. XVXSPAT_TOG4 (PROGRAMMABLE AT MODE_REGS)
Figure 39. SPAT Example for XV2 with XV2SPAT_TOG1 = 500, XV2SPAT_TOG2 = 540, XV2SPAT_TOG3 = 600, XV2SPAT_TOG4 = 640, and SPATLOGIC = XX1X
500
540
600
640
VD
HD
13-BIT
ST COUNTER
(FIXED)
INTERNAL XV1 WITHOUT
SPAT APPLIED
INTERNAL SPAT
TIMING FOR XV1 WITH
SPATLOGIC = 0
1
2
3
4
XV1 OUTPUT WITH
SPAT APPLIED
VSG LINE
04593-0-041
XVSGx
NOTES
1. THE XVxSPAT_TOG1 AND XVxSPAT_TOG2 REGISTERS REFERENCE THE 13-BIT ST COUNTER.
2. THE INTERNAL SPAT TIMING IS APPLIED IN THE SAME LINE AS THE XVSGx PULSE.
PROGRAMMABLE CLOCK POSITIONS
1. XVXSPAT_TOG1 (PROGRAMMABLE AT CONTROL REGS)
3. XVXSPAT_TOG3 (PROGRAMMABLE AT MODE_REGS)
2. XVXSPAT_TOG2 (PROGRAMMABLE AT CONTROL REGS)
4. XVXSPAT_TOG4 (PROGRAMMABLE AT MODE_REGS)
Figure 40. SPAT (OR) Example for XV1 with XV1SPAT_TOG1 = 500, XV1SPAT_TOG2 = 540, XV1SPAT_TOG3 = 600, XV1SPAT_TOG4 = 640, and SPATLOGIC = XXX0
Rev. A | Page 42 of 64
AD9929
V1 TO V4 AND SUBCK OUTPUT POLARITIES
V-DRIVER
XV1
V1
XVSG1
XV2
TIMING
GENERATOR
V2
XV3
V3
XVSG2
XV4
V4
XSUBCK
SUBCK
Table 28. V1 Output Polarity
V-Driver Input
XVSG1
L
H
L
H
XV1
L
L
H
H
V-DRIVER
LOGIC
V1 Output
Figure 41. Internal XV1 to XV4 and XSUBCK Signals
VH1
VM1
VL
VL
Table 31. V3 Output Polarity
V-Driver Input
XV3
L
L
H
H
Table 29. V2 Output Polarity
V-Driver Input
XV2
L
H
V-DRIVER
BUFFERS
04593-0-042
As shown in Figure 41, the XV1 to XV4 and XSUBCK are
output signals from the AD9929 timing generator, whereas the
V1 to V1 and SUBCK are output signals from the AD9929
vertical driver. The V1 to V4 and SUBCK polarities are not the
same as the internal XV1 to XV4 and XSUBCK polarities
configured by the AD9929 registers. Table 28 through Table 32
describe the output polarities for these signals versus their input
levels. These tables must be referred to when determining the
register settings for the desired output levels. Figure 46 shows an
example of the V3 output.
V2 Output
VM2
VL
V3 Output
XVSG2
L
H
L
H
VH1
VM1
VL
VL
Table 32. V4 Output Polarity
V-Driver Input
XV4
L
H
Table 30. SUBCK Output Polarity
V-Driver Input
XSUBCK
L
H
SUBCK Output
VH2
VL
V4 Output
VM2
VL
XV1
XV3
50%
50%
XVSG1
XVSG3
50%
tPLM1
50%
tPMH
tPHM
tPML1
VH1
90%
90%
V1
V3
10%
tR2
tF1
VM1
90%
10%
10%
tR1
tF2
Figure 42. V1 and V3 Transmission Delays and Rise Times
Rev. A | Page 43 of 64
VL
04593-0-043
10%
90%
AD9929
50%
50%
XV2
XV4
tPML2
tPLM2
VM2
90%
90%
10%
10%
VL
tF3
tR3
04593-0-044
V2
V4
Figure 43. V2 and V4 Transmission Delays and Rise Times
XSUBCK
50%
50%
tPHL
90%
SUBCK
VH2
90%
10%
10%
tR4
tF4
VL
04593-0-045
tPLH
Figure 44. SUBCK Transmission Delays and Rise Times
XV1
XVSG1
VH1
04593-0-046
V1
VM1
VL
Figure 45. Example Showing V1 Output versus XV1 and XVSG1 Signals
XV3
XVSG2
VH1
04593-0-047
V3
VM1
VL
Figure 46. Example Showing V3 Output versus XV3 and XVSG2 Signals
Rev. A | Page 44 of 64
AD9929
04593-0-048
XV2
XV4
VM2
V2
V4
VL
Figure 47. Example Showing V2 and V4 Outputs versus XV2 and XV4 Signals
04593-0-049
XSUBCK
VH2
SUBCK
VL
Figure 48. Example Showing SUBCK Output versus XSUBCK Signal
Rev. A | Page 45 of 64
AD9929
TIMING CONTROL
ELECTRONIC SHUTTER TIMING CONTROL
Single Pulse Mode
CCD image exposure time is controlled through the use of the
CCD substrate clock signal (XSUBCK), which pulses the CCD
substrate to clear out accumulated charges prior to the exposure
period. The AD9929 supports three types of electronic shuttering: normal shutter mode, suppression shutter mode, and
high speed shutter mode. Table 34 contains the registers
required for programming of XSUBCK pulses for each mode.
In addition to the normal operating XSUBCK pulse, one additional XSUBCK pulse can be applied within the HD line while
operating in this mode. As shown in Figure 49, the location of
the additional XSUBCK pulse is adjustable by setting the
XSUBCK_HPNUM register as described in Table 33. Finer
resolution of the exposure time is possible using this mode by
adding an additional XSUBCK pulse in the line, as shown in
Figure 54.
Normal Shutter Mode
Figure 49 shows the VD and XSUBCK output for normal
shutter mode. The XSUBCK pulses once per line. The number
of XSUBCK pulses per field can be programmed by setting
register XSUBCKNUM (Address 0x0B). As shown in Figure 49,
the XSUBCK pulses always begin on the line after the sensor
gate, as specified by XVSGACTLINE (Mode_Reg(1)).
SUBCK Suppression Mode
Normally, the XSUBCKs begin to pulse on the line following
the last sensor gate line (VSG). With some CCDs, the first
XSUBCK following the VSG line needs to be suppressed. The
XSUBCKSUPPRESS register allows for this suppression. The
first XSUBCK following the last VSG pulse is suppressed when
XSUBCKSUPPRESS = 1, as shown in Figure 50.
Multiple Pulse Mode
In addition to the normal operating XSUBCK pulse, up to seven
sequential XSUBCK pulses can be applied within the same line
while operating in this mode. As shown in Figure 54, the number of additional XSUBCK pulses is selectable by setting
XSUBCKMODE_HP = 1, and the XSUBCK_HPNUM registers
as described in Table 33.
Table 33. Single and Multiple Pulse Mode
XSUBCKNUM_HP
Single Pulse Mode
Normal Shutter
Mode Operation
Position #1
Position #2
Position #3
Position #4
Position #5
Position #6
Position #7
High Precision Shutter Mode
The high speed shutter mode can be operated in two different
modes, known as single pulse mode and multiple pulse mode.
These modes are set up by programming the
XSUBCKNUM_HP register and XSUBCKMODE_HP register,
as described in Table 28, Table 33, and shown in Figure 52 and
Figure 54.
XSUBCKMODE_HP
0
0
1
2
3
4
5
6
7
1
Multiple
Pulse Mode
Normal Shutter
Mode Operation
1 additional pulse
2 additional pulses
3 additional pulses
4 additional pulses
5 additional pulses
6 additional pulses
7 additional pulses
Table 34. XSUBCK Registers
Register Name
Bit
Width
Register Type
Reference
Counter
XSUBCKNUM
11
Control (Address 0x0B)
–
XSUBCKSUPPRESS
1
Control (Address 0x01)
–
XSUBCK_EN
1
Control (Address 0x0B)
–
–
XSUBCKMODE_HP
1
Control (Address 0x01)
–
–
XSUBCKNUM_HP
3
Control (Address 0x0B)
–
XSUBCK1TOG1
XSUBCK1TOG2
XSUBCK2TOG1
XSUBCK2TOG2
XSUBCKSEL
9
9
9
9
1
System_Reg(14)
System_Reg(14)
System_Reg(15)
System_Reg(15)
Mode_Reg(2)
OL Counter
OL Counter
OL Counter
OL Counter
–
Range
0–2047 Number of
Pulses
0–1 Number of Pulses
0–7 Number of Pulses
0–511 Pixel Location
0–511 Pixel Location
0–511 Pixel Location
0–511 Pixel Location
–
Rev. A | Page 46 of 64
Description
Number of XSUBCK Pulses per Field.
Suppress First XSUBCK after Last XVSG
Line Pulse
XSUBCK Output Enable Control
(0 = Disable, 1 = Enable)
High Speed Shutter Mode Operation
High Speed Shutter XSUBCLK
Position/Number
XSUBCLK1 1st Toggle Position
XSUBCLK1 2nd Toggle Position
XSUBCLK2 1st Toggle Position
XSUBCLK2 2nd Toggle Position
(0 = XSUBCK1, 1 = XSUBCK2)
AD9929
VD
HD
XVSG1XVSG2
tEXP
XSUBCK
tEXP
1
2
3
04593-0-050
SUBCK PROGRAMMABLE SETTINGS
1. XSUBCK STARTING POLARITY IS ALWAYS HIGH.
2. FALLING EDGE OF XSUBCK IS SET USING THE XSUBCK1TOG1 OR XSUBCK2TOG1 REGISTERS.
3. RISING EDGE OF XSUBCK IS SET USING THE XSUBCK1TOG2 OR XSUBCK2TOG2 REGISTERS.
NUMBER OF XSUBCK PULSES WITHIN THE FIELD IS SET BY USING THE XSUBCKNUM REGISTER. IN THIS EXAMPLE, XSUBCKNUM = 2.
Figure 49. Normal Shutter Mode
VD
HD
XVSG1XVSG2
tEXP
tEXP
XSUBCK
04593-0-051
1
XSUBCK PROGRAMMABLE SETTINGS
1. SETTING XSUBCKSUPPRESS REGISTER = 1 SUPRESSES THIS FIRST XSUBCK FOLLOWING XVSG PULSE.
Figure 50. XSUBCK Suppression Mode
HD
OLEN
9-BIT
0L-COUNTER
XSUBCK
2
3
4
5
6
7
04593-0-052
1
NORMAL SHUTTER MODE PULSE
ALWAYS OUTPUT
Figure 51. Electronic Shutter Timing
HD
9-BIT
OL-COUNTER
04593-0-053
XSUBCK
1
Figure 52. Electronic Shutter Timing Example with XSUBCKMODE_HP = 0 and XSUBCKNUM_HP = 1
Rev. A | Page 47 of 64
AD9929
VSG TIMING
The VSG Timing is controlled using the registers in Table 35.
Two unique preprogrammed VSG pulses can be configured
using the XVSGTOG_x (x = 0, 1) registers. As shown in
Figure 55, the period of the VSG pulse is set by programming
the XVSGLEN_x registers. The XVSGSELx (x = 1, 2) can then
be used to select the XVSGTOG_0 or XVSGTOG_1 pulse.
Figure 55 also shows an example of the XVSG pulse being
output in the fourth line by setting the XVSGACTLINE = 3.
The XVSG pulses references the 13-bit fixed ST counter, which
starts counting from the line set in the XVSGACTLINE register.
The 13-bit counter allows for overlapping of the XVSG pulse
into the next line if needed.
XVSGTOG_0
XVSG1
XVSGTOG_1
(APPLIED TO XV1)
XVSGSEL1
XVSGTOG_0
XVSG2
XVSGTOG_1
XVSGSEL2
04593-0-055
(APPLIED TO XV3)
Figure 53. XVSGSELx Registers
Figure 53 describes the XVSG1 and XVSG2 MUX operation
using the XVSGSELx registers.
HD
9-BIT
OL-COUNTER
1
2
04593-0-054
XSUBCK
3
Figure 54. Electronic Shutter Timing Example with XSUBCKMODE_HP = 1 and XSUBCKNUM_HP = 3.
Table 35. VSG Registers
Register
Name
XVSGMASK
Bit
Width
6
Register Type
Control (Address 0x0A)
Reference
Counter
–
Range
–
XVSG_EN
1
Control (Address 0x0B)
–
High/Low
XVSGTOG_0
XVSGTOG_1
XVSGLEN_0
XVSGLEN_1
11
11
8
8
Sys_Reg(13)
Sys_Reg(13)
Sys_Reg(14)
Control (Address 0x0F)
ST
ST
ST
ST
0–8191 Pixels
0–8191 Pixels
0–255 Pixels
0–255 Pixels
High/Low
XVSGSEL1
1
Mode_Reg(1)
–
XVSGSEL2
1
Mode_Reg(1)
–
XVSGACTLINE
7
Mode_Reg(1)
High/Low
0–128 Lines
Rev. A | Page 48 of 64
Description
VSG Mask Control
(00 = XVSG1 Masked, XVSG2 Masked)
(02 = XVSG1 Not Masked, XVSG2 Masked)
(08 = XVSG1 Masked, XVSG2 Not Masked)
(0A= XVSG1 Not Masked, XVSG2 Not Masked)
XVSG Output Enable Control (0 = Disable
XVSG Outputs, 1 = Enable XVSG Outputs)
XVSGTOG_0 Toggle Position
XVSG TOG_1 Toggle Position
XVSGTOG_0 Pulse Width
XVSGTOG_1 Pulse Width
XVSG1 Selector
(0 = XVSGTOG_0 Applied on XVSG1,
1 = XVSGTOG_1 Applied on XVSG1)
XVSG2 Selector
(0 = XVSGTOG_0 Applied on XVSG2,
1 = XVSGTOG_1 Applied on XVSG2 )
VSG Active Line
AD9929
VD
HD
0
1
2
3
13-BIT
ST COUNTER
(FIXED)
XVSGACTLINE
XVSGLEN_0
XVSGTOG_0
1
XVSGLEN_1
XVSGTOG_1
04593-0-056
2
NOTES
1. XVSGTOG_x (x = 0, 1) REFERENCES THE 13-BIT ST COUNTER
2. XVSGACTLINE (PROGRAMMABLE AT MODE_REG(1))
3. XVSGLEN (PROGRAMMABLE AT SYS_REG(14))
PROGRAMMABLE CLOCK POSITIONS
1. XVSGTOG_0 (PROGRAMMABLE AT SYS_REG(13))
2. XVSGTOG_1 (PROGRAMMABLE AT SYS_REG(13))
Figure 55. Example of VSG Pulse
4
1
SERIAL
WRITES
5
2
VD
HD
VSUB
2 LINES
3 LINES
04593-0-058
6
3
Figure 56. VSUB Timing Example
VSUB TIMING
The CCD readout bias (VSUB) can be programmed to accommodate different CCDs. VSUB on and off toggle positions and
polarity are controlled using VSUBTOG (Address 0x0D) and
VSUBPOL (Address 0x0D) registers, respectively, as described
in Table 36. Since the VSUBTOG is an 11-bit register, the VSUB
on position is programmable within any line. Figure 56 shows
an example of controlling VSUB using these registers.
VSUB Placement and Polarity
Figure 56 shows the sequence of events for programming the
VSUB on and off toggle positions and polarity.
1.
Program VSUBTOG = 2 and VSUBPOL = 1.
2.
Since the VSUBTOG and VSUBPOL are VD synchronous
type registers, the falling edge of VD updates the serial
writes from Step 1.
3.
VSUB is asserted high after two HD cycles.
4.
Program VSUBTOG = 3 and VSUBPOL = 0.
5.
Since the VSUBTOG and VSUBPOL are VD synchronous
type registers, the falling edge of VD updates the serial
writes from Step 4.
6.
VSUB is asserted low after three HD cycles.
Table 36. VSUB Registers
Register
Name
VSUBPOL
Bit
Width
1
Register
Type
Control
Range
(Lines)
–
VSUBTOG
11
Control
0–2048
Description
(0 = Low,
1 = High)
VSUB toggle
position
Rev. A | Page 49 of 64
AD9929
MSHUT TIMING
is controlled by using the MSHUTLEN register. The AD9929
offers four preprogrammed MSHUT patterns that are selectable
using the MSHUTPAT register.
MSHUT Basic Operation
The AD9929 provides an MSHUT output pulse that can be configured to control the mechanical shutter of the camera. The
registers used to control the MSHUT pulse are listed in
Table 37.
The preprogrammed length is the same for all patterns set by
the MSHUTLEN register, but the active on period of the
MSHUT pulse is different for each pattern, as shown in
Figure 57. Figure 58 shows an example of selecting
MSHUTPAT0 positioned to start 3 lines after the falling edge of
VD, with MSHUTLEN = 5.
The MSHUT pulse can be placed at the start of any line by
using the 11-bit MSHUTPOS register. The MSHUT pulse width
Table 37. MSHUT and STROBE Registers
Register Name
Bit
Width
MSHUTPAT
2
MSHUTINIT
1
MSHUTEN
1
MSHUTPOS
MSHUTPOS_HP
MSHUTLEN
11
3
8
STROBE_EN
1
Register Type
Description
Selects MSHUT Pattern.
(0 = MSHUTPAT0, 1 = MSHUTPAT1, 2 = MSHUTPAT2, 3 = MSHUTPAT3)
MSHUT Initialize
(1 = MSHUT Output Held Low, 0 = Normal Operation Resumes)
MSHUT Control (0 = MSHUT Held at Last State,
1 = MSHUT Output Enabled for Normal Operation)
MSHUT Position during Normal Operation
MSHUT Position during High Precision Operation
MSHUT Pattern Length.
STROBE Output Enable Control
(0 = STROBE Output Held Low, 1 = Enable STROBE Output)
Control (Address 0x01)
Control (Address 0x0C)
Control (Address 0x0C)
Control (Address 0x0C)
Control (Address 0x0C)
Sys_Reg(13)
Control (Address 0x0B)
HD
MSHUTPAT0
MSHUTPAT1
04593-0-059
MSHUTPAT2
MSHUTPAT3
MSHUTLEN + 1
Figure 57. MSHUT Patterns Available by Setting MSHUTPAT Register
VD
HD
1
2
3
1
2
3
4
5
XVSG1XVSG2
tEXP
MSHUT
MSHUTPOS = 3
MSHUTPAT = 0, MSHUTLEN = 5
Figure 58. Example of MSHUT Timing with MSHUTEN = 1 and MSHUTPOS_HP = 0
Rev. A | Page 50 of 64
04593-0-060
XSUBCK
AD9929
MSHUT High Precision Operation
MSHUT rising and falling edges are delayed by three OL
counter cycles after the falling edge of HD, as shown in
Figure 56.
The MSHUTPOS_HP register allows fine precision control of
the MSHUT position within a line. Under normal MSHUT
operation when MSHUTPOS_HP = 0, the MSHUT polarity
changes from high to low on the negative edge of the HD pulse,
as shown in Figure 53. By using the MSHUTPOS_HP register,
the rising and falling edges of MSHUT can be delayed by
multiples of the OL counter length that has been set in the
OLEN register. For example, if MSHUTPOS_HP = 3, the
Figure 56 provides an example of high precision MSHUT and
SUBCK timing. In this example, the length of the OL counter is
shorter. This provides finer precision control of the placement
of the MSHUT pulse within a line.
VD
HD
1
2
3
1
2
3
4
5
XVSG1XVSG2
tEXP
XSUBCK
OL
COUNTER
OL
COUNTER
OL
OL
COUNTER COUNTER
MSHUTPOS = 3
04593-0-061
MSHUT
MSHUTPAT = 0, MSHUTLEN = 5
Figure 59. Example of MSHUT High Precision Timing MSHUTEN = 1 and MSHUTPOS_HP = 3
VD
HD
1
2
3
1
2
3
4
5
XVSG1XVSG2
tEXP
XSUBCK
MSHUT¹
MSHUT²
DELAY = 3 OL
COUNTER LENGTHS
MSHUTPAT = 0, MSHUTLEN = 5
NOTES
1MSHUT OUTPUT IN NORMAL OPERATION WITH MSHUTPOS_HP = 0
2MSHUT OUTPUT IN HIGH PRECISION OPERATION WITH MSHUTPOS_HP = 3
Figure 60. Example of MSHUT High Precision Timing MSHUTEN = 1, MSHUTPOS_HP = 3, with XSUBCKMODE_HP = 1, XSUBCKNUM_HP = 3
Rev. A | Page 51 of 64
04593-0-062
MSHUTPOS = 3
AD9929
STROBE TIMING
output pulse is asserted high on the rising edge of the last
XSUBCK pulse in the field, as shown in Figure 61. Also shown
in Figure 61, the STROBE pulse is asserted low again on the
rising edge of VSG.
The AD9929 provides a STROBE output pulse that can be used
to trigger the camera flash circuit. STROBE operation is set by
only one register, as described in Table 32. The STROBE output
is held low when STROBE_EN (Address 0x0B) is set to 0 and
enabled when set to 1. Providing STROBE_EN = 1, the STROBE
SET STROBE_EN (ADDRESS 0x0B) = 1
VD
XVSG1XVSG2
tEXP
XSUBCK
STROBE
2
04593-0-063
1
NOTES
1. STROBE OUTPUT ASSERTED HIGH ON RISING EDGE OF LAST XSUBCK PULSE
2. STROBE OUTPUT ASSERTED LOW ON NEGATIVE EDGE OF XVSG PULSE
Figure 61. STROBE Output Timing
VD
H-COUNTER
RESET
HD
H-COUNTER
RESET
3ns MIN
CLI
X
X
X
X
X
X
X
X
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
NOTES
1. INTERNAL 12-BIT H-GRAY CODE COUNTER IS RESET 7 CLOCK CYCLES AFTER THE HD FALLING EDGE.
Figure 62. External VD/HD and Internal 12-Bit H-Gray Code Counter Synchronization, Slave Mode
Rev. A | Page 52 of 64
0
1
2
3
4
04593-0-064
H-GRAY CODE
COUNTER X
(PIXEL COUNTER)
AD9929
DIGITAL I/O STATES FOR DIFFERENT OPERATING CONDITIONS
Table 38 describes the state of the digital I/Os for different operating conditions.
Table 38. I/O Levels
I/O
DCLK1
DCLK2
VD2
HD2
RG
H1
H2
V1
V2
V3
V4
SUBCK
STROBE
MSHUT
FD
1
2
OCONT_REG1 = 0
ACTIVE
ACTIVE
H
H
L
H
L
VL
VL
VL
VL
SUBVDD
L
L
H
DIGSTBY
H
ACTIVE
H
H
L
H
L
VL
VL
VL
VL
VL
L
L
L
OUTCONT_REG is a register setting located at Address 0x05. It defaults to 0 at power-up.
VD and HD operate in master mode.
Rev. A | Page 53 of 64
AD9929
POWER SUPPLY SEQUENCING
Figure 63 describes the AD9929 AFETG and V-driver supplies
associated with vertical driver outputs.
2.
Turn ON: VH1 VH2, VM1,VM2, and VL.
VH1
VDD
VL
VH2
Turn ON: VDD, DVDD, DRVDD, HVDD, RGVDD,
TCVDD, and AVDD.
VM2
1.
VM1
RECOMMENDED POWER-UP SUPPLY
SEQUENCING
AVDD,TCVDD,
HVDD,RGVDD,
DVDD,DRVDD
The recommended power-up and power-down sequences are
shown in Figure 64 and Figure 65, respectively. As shown, the
VM1 and VM2 voltage level should never exceed the VH1 and
VH2 voltage level during power-up or power-down. Excessive
current results if this requirement is not met due to a PN
junction diode turning on between the VM1/2 and VH supply
pins.
V1 (VH1, VM1, VL)
V2 (VM2, VL)
XV3
V-DRIVER
LOGIC
XV4
When the AD9929 is powered down, the following power
supply sequence is recommended. Refer to Figure 65.
V3 (VH1, VM1, VL)
XVSG1
V4 (VM2, VL)
XVSG2
04593-0-065
SUBCK (VH2, VL)
XSUBCK
1.
Turn OFF: VH1, VH2, VM1, VM2, and VL.
2.
Turn OFF: VDD, DVDD, DRVDD, HVDD, RGVDD,
TCVDD, and AVDD.
Figure 63. Block Diagram of AD9929 Showing
Timing Generator and Vertical Driver
VH1 = VH2 = 15.0V
VDD = DVDD = DRVDD = HVDD = RGVDD = TCVDD = AVDD = 3V
1
2
0V
VL = –7.5V
SAME TIME AS VM AND VH OR EARLIER, BUT NOT BEFORE VDD REACHES 3V.
Figure 64. Power-Up Supply Sequencing
VH1 = VH2 = 15.0V
VDD = DVDD = DRVDD = HVDD = RGVDD = TCVDD = AVDD = 3V
1
2
0V
VM1 = VM2 = –0.5V
VL = –7.5V
SAME TIME AS VM AND VH OR EARLIER, BUT NOT AFTER VDD.
Figure 65. Power-Down Supply Sequencing
Rev. A | Page 54 of 64
04593-0-066
VM1 = VM2 = –0.5V
04593-0-067
TIMING
GENERATOR
Caution:
There is a PN junction diode from VM1 and VM2 to VH.
Excessive current occurs if the VM1 and VM2 supply level is
greater than VH1 and VH2 supplies.
RECOMMENDED POWER-DOWN SUPPLY
SEQUENCING
XV1
XV2
When the AD9929 is powered up, the following power supply
sequence is recommended. Refer to Figure 64.
AD9929
INITIAL START-UP SEQUENCE
Recommended Start-Up Sequence for Master Mode
5.
Program system registers (Address 0x20).
When the AD9929 is powered up, the following sequence is
recommended (refer to Figure 66 for each step).
6.
Program Mode_A registers (Address 0x21).
7.
Program Mode_B registers (Address 0x22).
1.
Turn on power supplies as described in the Power Supply
Sequencing section.
8.
2.
Apply the CLI master clock input.
CLI is output on DCLK2 Pin 16 at this time.
Program OUTCONT_REG register (Address 0x05) = 1.
(The internal OUTCONT signal is asserted high at this
time. This enables the digital outputs.)
9.
3.
Reset the internal AD9929 registers. Write a 0x000000 to
the SW_RESET register (Address 0x00). This sets all
internal register values to their default values. (This step is
optional because there is an internal power-on reset circuit
that is applied at power-up.)
Program control register MODE (Address 0x0A) = 0. This
selects Mode_A operation. (This step is optional because
the AD9929 defaults to Mode_A at power-up.)
10. Program control register MODE (Address 0x0A) = 1. This
selects Mode_B operation. Note: Complete this write at
least 4 CLI cycles before the start of the next field.
4.
Program DIGSTBY and AFESTBY registers (Address 0x05)
= 1 and all other necessary control registers.
AD9929
POWER-UP
SEQUENCE
CLI
(INPUT)
OUTCONT1
(INTERNAL SIGNAL)
tPWR
5
3
7
SERIAL
WRITES
1V
ODD FIELD
EVEN FIELD
VD
(OUTPUT)
ODD FIELD
1H
HD
(OUTPUT)
H1, VSUB, FD
DIGITAL
(OUTPUTS)
H2, RG, MSHUT, STROBE
tDELAY3
DCLK22
(OUTPUT)
DCLK1
(OUTPUT)
Figure 66. Recommended Start-Up Sequence and Synchronization, Master Mode
Rev. A | Page 55 of 64
04593-0-068
tSETTLING4
NOTES
1OUTCONT IS AN INTERNAL SIGNAL THAT IS CONTROLLED USING REGISTER OUTCONT_REG (ADDRESS 0x05).
2DCLK2 WILL BE OUTPUT ON THE FD/DCLK2 PIN 16 PROVIDING REGISTER DCLK2SEL (ADDRESS 0xD5) = 1.
THE DCLK2SEL REGISTER DEFAULTS TO 1 AT POWER-UP.
3IT TAKES 11 CLI CLOCKS FROM WHEN OCONT GOES HIGH UNTIL VD, HD, AND DIGITAL OUTPUT DATA IS VALID.
4THERE IS A 500µS SETTLING TIME FROM WHEN THE DIGSTBY REGISTER IS SET TO WHEN THE DCLK1 IS STABLE.
AD9929
STANDBY MODE OPERATION
Recommended Standby Mode Sequence
3.
When ready to come out of standby operation, program
register DIGSTBY (Address 0x05) = 1 and register
AFESTBY (Address 0x05) = 1.
4.
Program necessary control registers.
5.
Program control register MODE (Address 0x0A) = 0. This
selects Mode_A operation.
6.
Program register OUTCONT_REG (Address 0x05) = 1.
This asserts the internal OUTCONT signal high, causing
all digital outputs to become active.
When the AD9929 is going into standby operation, the following sequence is recommended (refer to Figure 67 for each step).
1.
2.
Program OUTCONT_REG (Address 0x05) = 0. This
asserts the internal OUTCONT signal low, causing all
digital outputs to become disabled.
Program registers AFESTBY (Address 0x05) = 0 and
DIGSTBY (Address 0x05) = 0. The AD9929 is now in
standby operation.
AD9929
SUPPLIES
CLI
(INPUT)
OUTCONT
(INTERNAL SIGNAL)
1
2
3
5
6
SERIAL
WRITES
VD
(OUTPUT)
HD
(OUTPUT)
H1, VSUB
DIGITAL
OUTPUTS
H2, RG, MSHUT, STROBE, FD
tDELAY2
DCLK1
AND
DCLK21
AFESTBY
(REGISTER)
NOTES
1DCLK2 WILL BE OUTPUT ON THE FD/DCLK2 PIN 16 PROVIDING REGISTER DCLK2SEL (ADDRESS 0xD5) = 1.
2IT TAKES 11 CLI CLOCKS FROM WHEN OCONT GOES HIGH UNTIL VD, HD, AND DIGITAL OUTPUT DATA IS VALID.
Figure 67. Recommended Standby Sequence
Rev. A | Page 56 of 64
04593-0-069
DIGSTBY
(REGISTER)
AD9929
SHUT-DOWN MODE OPERATION
Recommended Power-Down Sequence
1.
Program OUTCONT_REG (Address 0x05) = 0.
When the AD9929 is going to be powered down, the following
sequence is recommended (refer to Figure 68 for each step).
2.
Program registers AFESTBY (Address 0x05) = 0 and
DIGSTBY (Address 0x05) = 0.
3.
Remove power from AD9929.
4
VDD
(INPUT)
CLI
(INPUT)
OUTCONT
(INTERNAL)
SERIAL
WRITES
VD
(OUTPUT)
ODD FIELD
EVEN FIELD
ODD FIELD
HD
(OUTPUT)
H1, VSUB
DIGITAL
OUTPUTS
H2, RG, MSHUT, STROBE
DCLK1
DCLK21
AFESTBY
(REGISTER)
NOTE
1DCLK2
WILL BE OUTPUT ON THE FD/DCLK2 PIN 16 PROVIDING REGISTER DCLK2SEL (ADDRESS 0xD5) = 1.
Figure 68. Recommended Shut-Down Sequence
Rev. A | Page 57 of 64
04593-0-070
DIGSTBY
(REGISTER)
AD9929
APPLICATIONS WHERE THE CLI CLOCK FREQUENCY CHANGES DURING OPERATION
The AD9929 must be reset, as described in Figure 69, if the CLI
clock frequency is changed during operation. The DCLK1
output can become unstable if this reset sequence is not applied
after any changes in the CLI clock frequency.
SLOW
FAST
FAST
CL
t1
1
2
3
4
SERIAL
WRITES
OUTCONT
(INTERNAL
SIGNAL)
VD
(OUTPUT)
HD
(OUTPUT)
HD, VD, H1, (SUBCK = VH2)
OUTPUTS
(V1, V2, V3, V4 = VL), H2, STROBE, MSHUT
REGION A
REGION B
tDELAY*
DCLK1I
REGION C
DIG_STBY
(REGISTER)
SERIAL PROGRAMMING STEPS MUST BE FOLLOWED WHEN THE CLI CLOCK FREQUENCY CHANGES
1. OUTCONT_REG = 0
2. DIG_STBY = 0
3. DIG_STBY = 1
4. OUTCONT_REG = 1
t1 = MINIMUM OF 2 CLI CLOCK CYCLES
*IT TAKES 4 CLI CLOCK CYCLES FROM WHEN OUTCONT GOES HIGH UNTIL VD, HD AND DIGITAL OUTPUT DATA IS VALID.
Figure 69. Reset Sequence That Must Be Applied when Changing the CLI Clock Frequency During Operation
Rev. A | Page 58 of 64
04593-0-071
NOTES ABOUT REGIONS A, B, AND C
1DIGITAL OUTPUTS MAY BECOME INVALID IN REGION A
2DIGITAL OUTPUTS ARE OUTPUT AS SHOWN IN REGION B
3DCLK1 OUTPUT MAY BECOME INVALID IN REGION C
4APPLICATIONS SHOULD NOT USE OUTPUT SIGNALS IN REGION C
AD9929
CCD
SIGNAL t
SHP
N
ID
N+1
N+2
N+3
N+4
N+5
N+6
N+7
N+8
N+9
N + 10
N + 11
tID
tS1
SHD
CYCLE 1
CYCLE 2
CYCLE 3
CYCLE 4
CYCLE 5
N–7
N–6
N–5
CYCLE 6
CYCLE 7
CYCLE 8
CYCLE 9
CLI
(tOD + tVCLIDLY)
N – 10
N–9
N–8
N–4
N–3
N–2
N–1
NOTES
1. RECOMMENDED PLACEMENT FOR CLI RISING EDGE IS BETWEEN THE SHD RISING EDGE AND NEXT SHP FALLING EDGE.
2. CCD SIGNAL IS SAMPLED AT SHP AND SHD RISING EDGES.
3. OUTPUT DATA LATENCY IS NINE CYCLES.
Figure 70. Output Data Pipeline Delay
Rev. A | Page 59 of 64
N
04593-0-075
OUTPUT
DATA
AD9929
CIRCUIT LAYOUT INFORMATION
The AD9929 typical circuit connection is shown in Figure 71.
The PCB layout is critical in achieving good image quality from
the AD9929 product. All of the supply pins must be decoupled
to ground with good quality, high frequency chip capacitors.
The 0.1 µF decoupling capacitors should be located as close as
possible to the supply pins, and should have a very low inductance path to a continuous ground plane. There should also be a
4.7 µF or larger capacitor for each main supply, although it is
not necessary for each individual pin.
In most applications it is easier and recommended to share the
same supply for AVDD, DVDD, TCVDD, RGVDD, and HVDD,
as long as the individual supply pins are separately bypassed at
each supply pin. A separate 3 V supply should be used for
DRVDD with this supply pin decoupled to the same ground
plane as the rest of the chip. A separate ground for DRVSS is not
recommended.
The vertical driver VM supply pins can be connected to individual supplies or to the same supply, depending on the application requirement for the mid-level voltage on the vertical
outputs. These pins may also be directly connected to the
common ground plane, as shown in Figure 71.
The analog bypass pins, REFB, REFT, should also be carefully
decoupled to ground as close as possible to their respective pins.
The analog input, CCDIN, capacitor should also be located
close to the pin.
The H1, H2, and RG printed circuit board traces should be
designed to have low inductance to avoid excessive distortion of
the signals. Heavier traces are recommended because of the
large transient current demand by the CCD on H1 and H2. If
possible, physically locate the AD9929 close to the CCD to
reduce the inductance on these lines. As always, the routing
path should be as direct as possible from the AD9929 to the
CCD. Careful trace impedance considerations must also be
made with applications using a flex printed circuit (FPC) connecting the CCD to the AD9929. FPC trace impedances can be
controlled by applying a solid uniform ground plane under the
H1, H2, and RG traces. This helps minimize the amount of
overshoot and ringing on these signals at the CCD inputs.
Rev. A | Page 60 of 64
AD9929
3V
DRIVER
SUPPLY
4.7µF
12
DATA
OUTPUTS
VSUB
D0
D1
D2
D3
D4
D5
DRVSS
D6
DRVDD
A9
B8
A8
A7
B7
A6
B6
B5
A5
B4
C1
D1
D2
C9
C10
AD9929
TOP VIEW
(Not to Scale)
F1
G1
H1
F9
F10
G9
H2
G10
J1
H9
H10
J2
K1
DVDD
VDD
DVSS
0.1µF
SYNC/VGATE
OUTCONT
V2
VH2
VL
VM2
SUBCK
V3
VL SUPPLY
0.1µF
4.7µF
V4
5
VH1
SCK
VH SUPPLY
SL
4.7µF
1.0µF
1.0µF
VDVSS
SDATA
V1-V4, SUBCK
TO CCD
0.1µF
3
SERIAL
INTERFACE
04593-0-072
0.1µF
AVSS
REFT
REFB
AVSS
AVSS
AVSS
0.1µF
AVSS
CCDIN
AVSS
AVSS
AVSS
AVDD
TCVDD
4.7µF
10k Ω
OUTCONT
V1
0.1µF
3V ANALOG SUPPLY
0.1µF
SYNC/VGATE
VM1
K9
K10
J9
K8
J7
J8
K7
K5
J6
K6
J10
K2
TCVSS
D10
E9
E10
J5
CLI
D9
E2
F2
G2
K4
J4
RG
RGVSS
RGVDD
E1
J3
HVDD
HVSS
HVSS
HVSS
A10
PIN 1
IDENTIFIER
C2
K3
3V ANALOG SUPPLY
A4
FD/DCLK2
VD
B10
B9
3
MASTER CLOCK INPUT
0.1µF
B3
B1
H2
H1
H1, H2 AND
RG TO CCD
D7
0.1µF
A3
3V ANALOG SUPPLY
3V ANALOG SUPPLY
MSHUT
STROBE
HD
HD TO ASIC/DSP
B2
A2
A1
VD TO ASIC/DSP
D8
D9
D10
D11
DCLK1
TO MECHANICAL
SHUTTER CIRCUIT
TO STROBE CIRCUIT
FD/DCLK2
VSUB TO CCD
0.1µF
DCLK1
CCD SIGNAL
Figure 71. AD9929 Typical Circuit Configuration
Rev. A | Page 61 of 64
AD9929
OUTLINE DIMENSIONS
A1 CORNER
INDEX AREA
9.00 BSC SQ
10 9 8 7 6 5
4 3
2 1
A
BALL A1
INDICATOR
B
C
D
BOTTOM
VIEW
TOP VIEW
E
F
G
H
J
K
0.90
REF SQ
7.20 BSC
DETAIL A
DETAIL A
1.00
0.85
0.25 MIN
1.40
MAX
0.12 MAX
COPLANARITY
0.55
SEATING
0.50
PLANE
0.45
BALL DIAMETER
0.80
BSC
COMPLIANT TO JEDEC STANDARDS MO-205-AB
Figure 72. 64-Lead Chip Scale Ball Grid Array [CSPBGA]
(BC-64)
Dimensions shown in millimeters
ORDERING GUIDE
Model
AD9929BBCZ1
1
Temperature Range
−25°C to +85°C
Package Description
64-Lead Plastic Ball Grid Array
Z = Pb-free part.
Rev. A | Page 62 of 64
Package Option
BC-64
AD9929
NOTES
Rev. A | Page 63 of 64
AD9929
NOTES
© 2004 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D04593-0-1/04(A)
Rev. A | Page 64 of 64