AD9995 Analog Devices, AD9995 Datasheet - Page 35

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AD9995

Manufacturer Part Number
AD9995
Description
12-Bit CCD Signal Processor with Precision Timing Generator
Manufacturer
Analog Devices
Datasheet

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I/O Block
AFE
Timing Core
CLO Oscillator
CLO
V1
V2
V3
V4
V5
V6
VSG1
VSG2
VSG3
VSG4
VSG5
SUBCK
VSUB
MSHUT
STROBE
H1
H2
H3
H4
RG
VD
HD
DCLK
DOUT
NOTES
1
2
3
4
REV. 0
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.
Standby 3 mode takes priority over OUT_CONTROL for determining the output polarities.
These polarities assume OUT_CONT = HI because OUT_CONTROL = LO takes priority over Standby 1 and 2.
Standby 1 and 2 will set H and RG drive strength to minimum value (4.3 mA).
Standby 3 (Default)
OFF
OFF
OFF
HI
LO
LO
LO
LO
LO
LO
LO
LO
LO
LO
LO
LO
LO
LO
LO
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
LO
LO
LO
LO
1, 2
Table XIV. Standby Mode Operation
OUT_CONT = LO
No Change
No Change
No Change
Running
LO
LO
LO
LO
HI
HI
HI
HI
HI
HI
HI
HI
LO
LO
LO
LO
HI
LO
HI
LO
VDHDPOL Value
VDHDPOL Value
VDHDPOL
VDHDPOL Value
VDHDPOL Value
VDHDPOL
LO
LO
–35–
2, 3
Standby 2
OFF
OFF
ON
Running
LO
LO
LO
LO
HI
HI
HI
HI
HI
HI
HI
HI
LO
LO
LO
LO (4.3 mA)
HI (4.3 mA)
LO (4.3 mA)
HI (4.3 mA)
LO (4.3 mA)
VDHDPOL Value
VDHDPOL Value
VDHDPOL
VDHDPOL Value
LO
LO
3, 4
Standby 1
Only REFT, REFB ON
ON
ON
Running
LO
LO
LO
LO
HI
HI
HI
HI
HI
HI
HI
HI
LO
LO
LO
LO (4.3 mA)
HI (4.3 mA)
LO (4.3 mA)
HI (4.3 mA)
LO (4.3 mA)
Running
Running
Running
LO
AD9995
3, 4

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