AD9949KCPZ Analog Devices Inc, AD9949KCPZ Datasheet

IC CCD SIGNAL PROCESSOR 40-LFCSP

AD9949KCPZ

Manufacturer Part Number
AD9949KCPZ
Description
IC CCD SIGNAL PROCESSOR 40-LFCSP
Manufacturer
Analog Devices Inc
Type
CCD Signal Processor, 12-Bitr
Datasheet

Specifications of AD9949KCPZ

Input Type
Logic
Output Type
Logic
Interface
3-Wire Serial
Mounting Type
Surface Mount
Package / Case
40-LFCSP
Analog Front End Type
CCD
Analog Front End Category
Video
Interface Type
Serial (3-Wire)
Sample Rate
36MSPS
Input Voltage Range
0.5V
Operating Supply Voltage (min)
2.7V
Operating Supply Voltage (typ)
3V
Operating Supply Voltage (max)
3.6V
Resolution
12b
Number Of Adc's
1
Power Supply Type
Analog/Digital
Operating Temp Range
-20C to 85C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
40
Package Type
LFCSP EP
Number Of Channels
1
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Supply
-
Lead Free Status / RoHS Status
Compliant, Lead free / RoHS Compliant

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FEATURES
New AD9949A supports CCD line length > 4096 pixels
Correlated double sampler (CDS)
0 dB to 18 dB pixel gain amplifier (PxGA®)
6 dB to 42 dB 10-bit variable gain amplifier (VGA)
12-bit, 36 MSPS analog-to-digital converter (ADC)
Black level clamp with variable level control
Complete on-chip timing driver
Precision Timing™ core with < 600 ps resolution
On-chip 3 V horizontal and RG drivers
40-lead LFCSP package
APPLICATIONS
Digital still cameras
High speed digital imaging applications
Rev. B
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.
H1 TO H4
CCDIN
RG
4
AD9949
CDS
HORIZONTAL
DRIVERS
0dB TO 18dB
FUNCTIONAL BLOCK DIAGRAM
PxGA
GENERATOR
PRECISION
6dB TO 42dB
INTERNAL
HD
CLOCKS
TIMING
CORE
SYNC
VGA
Figure 1.
VD
12-Bit CCD Signal Processor with
GENERAL DESCRIPTION
The AD9949 is a highly integrated CCD signal processor for
digital still camera applications. Specified at pixel rates of up to
36 MHz, the AD9949 consists of a complete analog front end
with A/D conversion, combined with a programmable timing
driver. The Precision Timing core allows adjustment of high
speed clocks with < 600 ps resolution.
The analog front end includes black level clamping, CDS,
PxGA, VGA, and a 36 MSPS, 12-bit ADC. The timing driver
provides the high speed CCD clock drivers for RG and H1 to
H4. Operation is programmed using a 3-wire serial interface.
Packaged in a space-saving, 40-lead LFCSP package, the
AD9949 is specified over an operating temperature range of
−20°C to +85°C.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.326.8703
REFT REFB
V
REF
CLAMP
SL
REGISTERS
12-BIT
INTERNAL
ADC
SCK
Precision Timing Core
SDATA
© 2004 Analog Devices, Inc. All rights reserved.
12
HBLK
CLP/PBLK
CLI
DOUT
www.analog.com
AD9949

Related parts for AD9949KCPZ

AD9949KCPZ Summary of contents

Page 1

FEATURES New AD9949A supports CCD line length > 4096 pixels Correlated double sampler (CDS pixel gain amplifier (PxGA® 10-bit variable gain amplifier (VGA) 12-bit, 36 MSPS analog-to-digital converter (ADC) Black ...

Page 2

AD9949 TABLE OF CONTENTS Specifications..................................................................................... 3 General Specifications ................................................................. 3 Digital Specifications ................................................................... 3 Analog Specifications................................................................... 4 Timing Specifications .................................................................. 5 Absolute Maximum Ratings............................................................ 6 Thermal Characteristics .............................................................. 6 ESD Caution.................................................................................. 6 Pin Configuration and Function Descriptions............................. 7 Terminology ...................................................................................... ...

Page 3

SPECIFICATIONS GENERAL SPECIFICATIONS Table 1. Parameter TEMPERATURE RANGE Operating Storage MAXIMUM CLOCK RATE POWER SUPPLY VOLTAGE AVDD, TCVDD (AFE, Timing Core) HVDD ( Drivers) RGVDD (RG Driver) DRVDD (D0 to D11 Drivers) DVDD (All Other Digital) POWER DISSIPATION ...

Page 4

AD9949 ANALOG SPECIFICATIONS AVDD = DVDD = 3 MIN MAX Table 3. Parameter CDS Gain 1 Allowable CCD Reset Transient Maximum Input Range before Saturation Maximum CCD Black Pixel Amplitude PIXEL GAIN AMPLIFIER (P×GA) ...

Page 5

TIMING SPECIFICATIONS pF MHz, unless otherwise noted. L CLI Table 4. Parameter MASTER CLOCK (CLI) (See Figure 16) CLI Clock Period CLI High/Low Pulse Width Delay from CLI to Internal Pixel Period Position CLPOB ...

Page 6

AD9949 ABSOLUTE MAXIMUM RATINGS Table 5. With Parameter Respect to AVDD and TCVDD AVSS HVDD and RGVDD HVSS, RGVSS DVDD and DRVDD DVSS, DRVSS Any VSS Any VSS Digital Outputs DRVSS CLPOB/PBLK and HBLK DVSS SCK, SL, and SDATA DVSS ...

Page 7

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 6. Pin Function Descriptions Pin No. Mnemonic Type DRVSS P 6 DRVDD D11 ...

Page 8

AD9949 TERMINOLOGY Differential Nonlinearity (DNL) 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 ...

Page 9

EQUIVALENT INPUT/OUTPUT CIRCUITS AVDD R AVSS Figure 3. CCDIN (Pin 27) AVDD 330Ω 25kΩ CLI + 1.4V AVSS Figure 4. CLI (Pin 25) DVSS DATA THREE-STATE DVSS Figure 5. Data Outputs D0 to D11 (Pins ...

Page 10

AD9949 TYPICAL PERFORMANCE CHARACTERISTICS 1.0 0.5 0 –0.5 –1.0 0 500 1000 1500 2000 2500 ADC OUTPUT CODE Figure 8. Typical DNL 200 400 600 VGA GAIN CODE (LSB) Figure 9. Output ...

Page 11

SYSTEM OVERVIEW V-DRIVER V1 TO Vx, VSG1 TO VSGx, SUBCK H1 TO H4, RG CCDIN CCD AD9949 INTEGRATED AFE + TD SERIAL INTERFACE Figure 11. Typical Application Figure 11 shows the typical system application diagram for the AD9949. The CCD ...

Page 12

AD9949 SERIAL INTERFACE TIMING The AD9949’s internal registers are accessed through a 3-wire serial interface. Each register consists of an 8-bit address and a 24-bit data-word. Both the 8-bit address and 24-bit data-word are written starting with the LSB. To ...

Page 13

COMPLETE REGISTER LISTING 1. All addresses and default values are expressed in hexadecimal. 2. All registers are VD/HD updated as shown in Figure 14, except for the registers indicated in Table 7, which are SL updated. Table 7. SL Updated ...

Page 14

AD9949 Table 8. AFE Register Map Data Bit Address Content Default Value 00 [11: [9: [7: [11: [17: [17:0] 0 Table 9. Miscellaneous Register Map Data Bit Address Content Default ...

Page 15

Table 10. CLPOB Register Map Data Bit Default Value Address Content (Hex) 20 [3: [23:0] FFFFFF 22 [23:0] FFFFFF 23 [23:0] FFFFFF 24 [23:0] FFFFFF 0 25 [7: [11:0] FFF 27 [11:0] FFF 28 [11:0] FFF ...

Page 16

AD9949 Table 12. HBLK Register Map Data Bit Default Value Address Content (Hex [3: [23:0] FFFFFF 45 [23:0] FFFFFF 46 [23:0] FFFFFF 47 [23:0] FFFFFF 48 [23:0] FFFFFF ...

Page 17

Table 14. AFE Operation Register Detail Data Bit Default Address Content Value 00 [1:0] 0 [2] 1 [3] 0 [4] 0 [5] 0 [7:6] 0 [8] 0 [9] 0 [11:10] 0 Table 15. AFE Control Register Detail Data Bit Default ...

Page 18

AD9949 PRECISION TIMING HIGH SPEED TIMING GENERATION The AD9949 generates flexible high speed timing signals using the Precision Timing core. This core is the foundation for gener- ating the timing used for both the CCD and the AFE: the reset ...

Page 19

Table 16. H1CONTROL, RGCONTROL, DRVCONTROL, and SAMPCONTROL Register Parameters Parameter Length Range Polarity 1b High/Low Positive Edge Edge Location Negative Edge Edge Location Sample Location Sample Location Drive ...

Page 20

AD9949 P[0] CLI 1 PIXEL PERIOD DOUT NOTES 1. DIGITAL OUTPUT DATA (DOUT) PHASE IS ADJUSTABLE WITH RESPECT TO THE PIXEL PERIOD. 2. WITHIN ONE CLOCK PERIOD, THE DATA TRANSITION CAN BE PROGRAMMED TO ANY OF THE 48 LOCATIONS. CLI ...

Page 21

HORIZONTAL CLAMPING AND BLANKING The AD9949’s horizontal clamping and blanking pulses are fully programmable to suit a variety of applications. Individual sequences are defined for each signal, which are then organized into multiple regions during image readout. This allows the ...

Page 22

AD9949 HD HBL K H1/H3 H1/H3 H2/H4 HBLK H1/H3 H2/H4 SPECIAL H-BLANK PATTERN IS CREATED USING MULTIPLE HBLK TOGGLE POSITIONS. Table 20. Horizontal Sequence Control Parameters for CLPOB, PBLK, and HBLK Register Length Range SCP 12b 0 to 4095 Line ...

Page 23

GENERATING SPECIAL HBLK PATTERNS Six toggle positions are available for HBLK. Normally, only two of the toggle positions are used to generate the standard HBLK interval. However, the additional toggle positions may be used to generate special HBLK patterns, as ...

Page 24

AD9949 H-COUNTER SYNCHRONIZATION The H-Counter reset occurs seven CLI cycles following the HD falling edge. The PxGA steering is synchronized with the reset of the internal H-Counter (see Figure 26). As mentioned in the H-Counter Behavior section, the AD9949 H-counter ...

Page 25

POWER-UP PROCEDURE RECOMMENDED POWER-UP SEQUENCE When the AD9949 is powered up, the following sequence is recommended (refer to Figure 27 for each step): 1. Turn on the power supplies for the AD9949. 2. Apply the master clock input, CLI, VD, ...

Page 26

AD9949 ANALOG FRONT END DESCRIPTION AND OPERATION The AD9949 signal processing chain is shown in Figure 28. Each processing step is essential in achieving a high quality image from the raw CCD pixel data. DC RESTORE To reduce the large ...

Page 27

VD COLOR PxGA STEERING 3 HD STEERING MODE SELECTION CONTROL SHP/SHD 2 GAIN0 GAIN1 4:1 PxGA GAIN 4:1 MUX REGISTERS MUX GAIN2 GAIN3 8 CDS PxGA VGA Figure 29. PxGA Block Diagram CCD: PROGRESSIVE BAYER COLOR STEERING MODE: PROGRESSIVE R ...

Page 28

AD9949 FIELDVAL FIELDVAL = PxGA GAIN REGISTER NOTES 1. VD FALLING EDGE WILL RESET THE PxGA GAIN REGISTER STEERING TO 0101 LINE FALLING EDGES WILL ALTERNATE THE PxGA GAIN ...

Page 29

The PxGA gain for each of the four channels is variable from 512 steps, specified using the PxGA GAIN01 and PxGA GAIN23 registers. The PxGA gain curve is shown in Figure 36. The PxGA ...

Page 30

AD9949 APPLICATIONS INFORMATION CIRCUIT CONFIGURATION The AD9949 recommended circuit configuration is shown in Figure 38. Achieving good image quality from the AD9949 requires careful attention to PCB layout. All signals should be routed to maintain low noise performance. The CCD ...

Page 31

DRIVING THE CLI INPUT The AD9949’s master clock input (CLI) may be used in two different configurations, depending on the application. Figure 41 shows a typical dc-coupled input from the master clock source. When the dc-coupled technique is used, the ...

Page 32

AD9949 PIXELS 28 DUMMY PIXELS SEQUENCE 1: VERTICAL BLANKING VERTICAL SHIFT CCDIN INVALID PIX SHP SHD H1/H3 H2/H4 HBLK PBLK CLPOB SEQUENCE 2: VERTICAL OPTICAL BLACK LINES OPTICAL BLACK VERTICAL SHIFT CCDIN SHP SHD H1/H3 H2/H4 HBLK ...

Page 33

SEQUENCE 3: EFFECTIVE PIXEL LINES OPTICAL BLACK CCDIN VERTICAL SHIFT SHP SHD H1/H3 H2/H4 HBLK PBLK CLPOB OB DUMMY EFFECTIVE PIXELS Figure 46. Horizontal Sequences During Effective Pixels Rev Page AD9949 OPTICAL BLACK VERT SHIFT ...

Page 34

... ORDERING GUIDE Model Temperature Range AD9949KCP −20°C to +85°C AD9949KCPRL −20°C to +85°C 1 AD9949KCPZ −20°C to +85°C 1 AD9949KCPZRL −20°C to +85° AD9949AKCPZ −20°C to +85° AD9949AKCPZRL −20°C to +85° PB-free part. 2 The AD9949A is recommended for new designs and supports CCD line lengths > 4096 pixels. ...

Page 35

NOTES Rev Page AD9949 ...

Page 36

AD9949 NOTES © 2004 Analog Devices, Inc. All rights reserved. Trademarks and regis- tered trademarks are the property of their respective owners. D03751–0–11/04(B) Rev Page ...

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