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AD9857/PCB Datasheet(PDF) 29 Page - Analog Devices

Part # AD9857/PCB
Description  CMOS 200 MSPS 14-Bit Quadrature Digital Upconverter
PDF  40 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD9857/PCB Datasheet(HTML) 29 Page - Analog Devices

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AD9857
Rev. C| Page 29 of 40
Table 8. Control Register Quick Reference
Register
Address
(MSB)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
(LSB)
Bit 0
Def.
Value
Profile
00h
SDIO Input Only
LSB First
PLL Lock
Control
REFCLK Multiplier
01h: Bypass PLL
04h– 14h: 4×– 20×
21h
N/A
01h
CIC Clear
Inverse SINC
Bypass
Reserved:
Must Be 0
Reserved
Full
Sleep
Auto
Power-
Down
Operating mode
00h: Quad. Mod.
01h: Single-Tone
02h: Intrp. DAC
00h
N/A
02h
Frequency Tuning Word #1 <7:0>
00h
0
03h
Frequency Tuning Word #1 <15:8>
00h
0
04h
Frequency Tuning Word #1 <23:16>
00h
0
05h
Frequency Tuning Word #1 <31:24>
00h
0
06h
CIC Interpolation Rate
01h: Bypass CIC Filter
02h–3Fh: Interpolation Factor (2–63, Decimal)
Spectral
Invert
Inverse
CIC
Bypass
08h
0
07h
Output Scale Factor
Bit Weighting: MSB = 20, LSB = 2–7
B5h
0
08h
Frequency Tuning Word #2 <7:0>
Unset
1
09h
Frequency Tuning Word #2 <15:8>
Unset
1
0Ah
Frequency Tuning Word #2 <23:16>
Unset
1
0Bh
Frequency Tuning Word #2 <31:24>
Unset
1
0Ch
CIC Interpolation Rate
01h: Bypass CIC Filter
02h–3Fh: Interpolation Factor (2–63, Decimal)
Spectral
Invert
Inverse
CIC
Bypass
Unset
1
0Dh
Output Scale Factor
Bit Weighting: MSB = 20, LSB = 2–7
Unset
1
0Eh
Frequency Tuning Word #3 <7:0>
Unset
2
0Fh
Frequency Tuning Word #3 <15:8>
Unset
2
10h
Frequency Tuning Word #3 <23:16>
Unset
2
11h
Frequency Tuning Word #3 <31:24>
Unset
2
12h
CIC Interpolation Rate
01h: Bypass CIC Filter
02h–3Fh: Interpolation Factor (2–63, Decimal)
Spectral
Invert
Inverse
CIC
Bypass
Unset
2
13h
Output Scale Factor
Bit Weighting: MSB = 20, LSB = 2–7
Unset
2
14h
Frequency Tuning Word #4 <7:0>
Unset
3
15h
Frequency Tuning Word #4 <15:8>
Unset
3
16h
Frequency Tuning Word #4 <23:16>
Unset
3
17h
Frequency Tuning Word #4 <31:24>
Unset
3
18h
CIC Interpolation Rate
01h: Bypass CIC Filter
02h–3Fh: Interpolation Factor (2–63, Decimal)
Spectral
Invert
Inverse
CIC
Bypass
Unset
3
19h
Output Scale Factor
Bit Weighting: MSB = 20, LSB = 2–7
Unset
3



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