參數(shù)資料
型號(hào): AD9891
廠商: Analog Devices, Inc.
英文描述: CCD Signal Processors with Precision Timing⑩ Generator
中文描述: CCD信號(hào)處理器,精確定時(shí)⑩發(fā)生器
文件頁數(shù): 2/59頁
文件大小: 599K
代理商: AD9891
REV. A
–2–
AD9891/AD9895
TABLE OF CONTENTS
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
DIGITAL SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . 3
AD9891 ANALOG SPECIFICATIONS . . . . . . . . . . . . . . 4
AD9895 ANALOG SPECIFICATIONS . . . . . . . . . . . . . . 5
TIMING SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . 6
PACKAGE THERMAL CHARACTERISTICS . . . . . . . . 6
ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . 6
ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
PIN CONFIGURATION-AD9891 . . . . . . . . . . . . . . . . . . . 7
PIN FUNCTION DESCRIPTIONS-AD9891 . . . . . . . . . . . 7
PIN CONFIGURATION-AD9895 . . . . . . . . . . . . . . . . . . . 8
PIN FUNCTION DESCRIPTIONS-AD9895 . . . . . . . . . . . 8
SPECIFICATION DEFINITIONS . . . . . . . . . . . . . . . . . . . 9
EQUIVALENT CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . 9
TYPICAL PERFORMANCE CHARACTERISTICS . . . . 10
SYSTEM OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Typical System Block Diagram . . . . . . . . . . . . . . . . . . . . 11
PRECISION TIMING HIGH SPEED TIMING
GENERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Timing Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
High Speed Clock Programmability . . . . . . . . . . . . . . . . . .12
H-Driver and RG Outputs . . . . . . . . . . . . . . . . . . . . . . . . .13
Digital Data Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
HORIZONTAL CLAMPING AND BLANKING . . . . . . . .15
Individual CLPOB, CLPDM, and PBLK Sequences . . . . .15
Individual HBLK Sequences . . . . . . . . . . . . . . . . . . . . . . .15
Horizontal Sequence Control . . . . . . . . . . . . . . . . . . . . . . .15
VERTICAL TIMING GENERATION . . . . . . . . . . . . . . . .17
Individual Vertical Sequences . . . . . . . . . . . . . . . . . . . . . .18
Individual Vertical Regions . . . . . . . . . . . . . . . . . . . . . . . .19
Complete Field: Combining the Regions . . . . . . . . . . . . . .20
Vertical Sequence Alteration . . . . . . . . . . . . . . . . . . . . . . .21
Second Vertical Sequence During VSG Lines . . . . . . . . . .22
Vertical Sweep Mode Operation . . . . . . . . . . . . . . . . . . . .22
Vertical Multiplier Mode . . . . . . . . . . . . . . . . . . . . . . . . . .24
Frame Transfer CCD Mode . . . . . . . . . . . . . . . . . . . . . . 24
Vertical Sensor Gate (Shift Gate) Timing . . . . . . . . . . . . .25
SHUTTER TIMING CONTROL . . . . . . . . . . . . . . . . . . . .26
Normal Shutter Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
High Precision Shutter Mode . . . . . . . . . . . . . . . . . . . . . . .26
Low Speed Shutter Mode . . . . . . . . . . . . . . . . . . . . . . . . .26
SUBCK Suppression . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Readout After Exposure . . . . . . . . . . . . . . . . . . . . . . . . . . .27
VSUB Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
MSHUT and STROBE Control . . . . . . . . . . . . . . . . . . . .27
Example of Exposure and Readout of Interlaced Frame . . .29
ANALOG FRONT END DESCRIPTION AND
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
DC Restore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Correlated Double Sampler . . . . . . . . . . . . . . . . . . . . . . . 30
Input Clamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
PxGA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30
PxGA
Color Steering Mode Timing . . . . . . . . . . . . . . . . 31
Variable Gain Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . 33
PxGA
and VGA Gain Curves . . . . . . . . . . . . . . . . . . . . . 33
Optical Black Clamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
A/D Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
POWER-UP AND SYNCHRONIZATION . . . . . . . . . . . . 34
Recommended Power-Up Sequence for Master Mode . . . .34
SYNC During Master Mode Operation . . . . . . . . . . . . . . .35
Synchronization in Slave Mode . . . . . . . . . . . . . . . . . . . . .35
POWER-DOWN MODE OPERATION . . . . . . . . . . . . . . 35
HORIZONTAL TIMING SEQUENCE EXAMPLE . . . . . 37
VERTICAL TIMING EXAMPLE . . . . . . . . . . . . . . . . . . . 39
CIRCUIT LAYOUT INFORMATION . . . . . . . . . . . . . . . .40
SERIAL INTERFACE TIMING . . . . . . . . . . . . . . . . . . . . .41
Notes About Accessing a Double-Wide Register . . . . . . . 41
NOTES ON REGISTER LISTING . . . . . . . . . . . . . . . . . . 42
COMPLETE REGISTER LISTING . . . . . . . . . . . . . . . . . 43
OUTLINE DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . 57
REVISION HISTORY . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
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