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AD9690 Datasheet(PDF) 73 Page - Analog Devices

Part # AD9690
Description  Analog-to-Digital Converter
PDF  79 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD9690 Datasheet(HTML) 73 Page - Analog Devices

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AD9690
Data Sheet
Rev. B | Page 72 of 78
Reg
Addr
(Hex)
Register
Name
Bit 7
(MSB)
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0 (LSB)
Default
Notes
Digital Outputs and Test Modes
0x550
ADC test
modes
User
pattern
selection
0 = cont-
inuous
repeat
1 = single
pattern
0
Reset PN
long gen
0 = long
PN enable
1 = long
PN reset
Reset PN
short gen
0 = short
PN enable
1 = short
PN reset
Test mode selection
0000 = off, normal operation
0001 = midscale short
0010 = positive full-scale
0011 = negative full-scale
0100 = alternating checker board
0101 = PN sequence, long
0110 = PN sequence, short
0111 = 1/0 word toggle
1000 = the user pattern test mode (used with
Register 0x0550, Bit 7 and user pattern 1, 2, 3, 4
registers)
1111 = ramp output
0x00
0x551
User Pattern
1 LSB
0
0
0
0
0
0
0
0
0x00
Used
with Reg.
0x550
and Reg.
0x573
0x552
User Pattern
1 MSB
0
0
0
0
0
0
0
0
0x00
Used
with Reg.
0x550
and Reg.
0x573
0x553
User Pattern
2 LSB
0
0
0
0
0
0
0
0
0x00
Used
with Reg.
0x550
and Reg.
0x573
0x554
User Pattern
2 MSB
0
0
0
0
0
0
0
0
0x00
Used
with Reg.
0x550
and Reg.
0x573
0x555
User Pattern
3 LSB
0
0
0
0
0
0
0
0
0x00
Used
with Reg.
0x550
and Reg.
0x573
0x556
User Pattern
3 MSB
0
0
0
0
0
0
0
0
0x00
Used
with Reg.
0x550
and Reg.
0x573
0x557
User Pattern
4 LSB
0
0
0
0
0
0
0
0
0x00
Used
with Reg.
0x550
and Reg.
0x573
0x558
User Pattern
4 MSB
0
0
0
0
0
0
0
0
0x00
Used
with Reg.
0x550
and Reg.
0x573
0x559
Output Mode
Control 1
0
Converter control Bit 1 selection
000 = tie low (1’b0)
001 = overrange bit
011 = fast detect (FD) bit
101 = SYSREF±
Only used when CS (Register 0x58F)
= 2 or 3
0
Converter control Bit 0 selection
000 = tie low (1’b0)
001 = overrange bit
011 = fast detect (FD) bit
101 = SYSREF±
Only used when CS (Register 0x58F) = 3
0x00
0x55A
Output Mode
Control 2
0
0
0
0
0
Converter control Bit 2 selection
000 = tie low (1’b0)
001 = overrange bit
011 = fast detect (FD) bit
101 = SYSREF
Used when CS (Register 0x58F) = 1, 2, or 3
0x00



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