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AD9991 Datasheet(PDF) 35 Page - Analog Devices

Part # AD9991
Description  10-Bit CCD Signal Processor with Precision Timing ??Generator
PDF  60 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD9991 Datasheet(HTML) 35 Page - Analog Devices

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AD9991
–35–
Table XIV. Standby Mode Operation
I/O Block
Standby 3 (Default)1, 2
OUT_CONT = LO2, 3
Standby 23, 4
Standby 13, 4
AFE
OFF
No Change
OFF
Only REFT, REFB ON
Timing Core
OFF
No Change
OFF
ON
CLO Oscillator
OFF
No Change
ON
ON
CLO
HI
Running
Running
Running
V1
LO
LO
LO
LO
V2
LO
LO
LO
LO
V3
LO
LO
LO
LO
V4
LO
LO
LO
LO
V5
LO
HI
HI
HI
V6
LO
HI
HI
HI
VSG1
LO
HI
HI
HI
VSG2
LO
HI
HI
HI
VSG3
LO
HI
HI
HI
VSG4
LO
HI
HI
HI
VSG5
LO
HI
HI
HI
SUBCK
LO
HI
HI
HI
VSUB
LO
LO
LO
LO
MSHUT
LO
LO
LO
LO
STROBE
LO
LO
LO
LO
H1
Hi-Z
LO
LO (4.3 mA)
LO (4.3 mA)
H2
Hi-Z
HI
HI (4.3 mA)
HI (4.3 mA)
H3
Hi-Z
LO
LO (4.3 mA)
LO (4.3 mA)
H4
Hi-Z
HI
HI (4.3 mA)
HI (4.3 mA)
RG
Hi-Z
LO
LO (4.3 mA)
LO (4.3 mA)
VD
LO
VDHDPOL Value
VDHDPOL Value
Running
HD
LO
VDHDPOL Value
VDHDPOL Value
Running
DCLK
LO
LO
LO
Running
DOUT
LO
LO
LO
LO
NOTES
1 To exit Standby 3, first write 00 to OPRMODE[1:0], then reset the Timing Core after ~500 µs to guarantee proper settling of the oscillator.
2 Standby 3 mode takes priority over OUT_CONTROL for determining the output polarities.
3 These polarities assume OUT_CONT = HI because OUT_CONTROL = LO takes priority over Standby 1 and 2.
4 Standby 1 and 2 will set H and RG drive strength to minimum value (4.3 mA).
REV. 0



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