AD9840AJST Analog Devices Inc, AD9840AJST Datasheet - Page 10

• Manufacturer Part Number: AD9840AJST
• Description: IC CCD SIGNAL PROC 10BIT 48-LQFP
• Manufacturer: Analog Devices Inc
• Type: CCD Signal Processor, 10-Bitr

Specifications of AD9840AJST

• Rohs Status: RoHS non-compliant
• Input Type: Logic
• Output Type: Logic
• Interface: 3-Wire Serial
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Analog Front End Type: CCD
• Analog Front End Category: Video
• Interface Type: Serial (3-Wire)
• Sample Rate: 40MSPS
• Input Voltage Range: 0.8V
• Operating Supply Voltage (min): 2.7V
• Operating Supply Voltage (typ): 3V
• Operating Supply Voltage (max): 3.6V
• Resolution: 10b
• 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: 48
• Package Type: LQFP
• Number Of Channels: 1
• Current - Supply: -
• Lead Free Status / RoHS Status: Compliant

D10
X
D10
X
D10
X
AD9840A
0
D10
X
D10
Must be set to zero.
Control Register Bit D3 must be set high for the CDS Gain Register to be used.
Must be set to zero.
When D3 = 0 (CDS Gain Disabled), the CDS Gain Register is fixed at 4 dB (code 63 dec).
Data Out
D9
0 Enable
1 Three-State
D9
X
D9
X
D9
0
MSB
D9
0
1
1
D8
0
D8
X
D8
X
D8
0
1
1
Set to one.
D7
1
D8
0
MSB
D7
0
0
0
1
1
D7
X
D7
0
1
1
D7
0
D6
0
Table IV. Clamp Level Register Contents (Default Value x080)
Table VI. CDS Gain Register Contents (Default Value x000)
Table III. VGA Gain Register Contents (Default Value x096)
Table II. Operation Register Contents (Default Value x000)
Table V. Control Register Contents (Default Value x000)
D6
0
0
0
1
1
DATACLK
D6
0 Rising Edge Trigger
1 Falling Edge Trigger
D6
X
Optical Black Clamp
D5
0 Enable Clamping
1 Disable Clamping
D6
1
1
1
D5
0
0
0
1
1
MSB
D5
0
0
1
1
D5
0
1
1
D4
0
0
0
•
•
•
1
1
D4
0
1
0
1
D4
1
•
•
•
1
1
CLP/PBLK
D5
0 Active Low
1 Active High
Reset
D4
0 Normal
1 Reset all
D3
1
1
0
0
0
Registers
to Default 1
D3
0
1
0
1
D3
1
1
1
•
•
•
•
•
•
D2
0
0
0
1
1
Power-Down Modes
D3 D2
0
0
1
SHP/SHD
D4
0 Active Low
1 Active High 1 Enabled
D2
0
1
0
1
D2
1
1
1
0 Normal Power
1 Fast Recovery
0 Standby
1 Total Power-Down 1
D1
0
0
1
1
1
D1
0
1
0
1
D1
1
1
1
LSB
D0
0
1
0
0
1
D3
0 Disabled
CDS Gain
LSB
D0
0
0
0
1
LSB
D0
1
0
1
Channel Selection
D1 D0
0
0
1
Clamp Level (LSB)
0
0.25
0.5
•
•
•
63.5
63.75
0
0
1
1
0
Gain (dB)
+4.3
•
•
•
+10.0
–2.0
•
•
•
+4.0
D2
Gain (dB)
2.0
•
•
•
35.965
36.0
CCD-Mode
AUX1-Mode
AUX2-Mode
Test Only
D1
0
D0
0