EVAL-AD9837SDZ Analog Devices Inc, EVAL-AD9837SDZ Datasheet - Page 18

• Manufacturer Part Number: EVAL-AD9837SDZ
• Description: EVALUATION BOARD
• Manufacturer: Analog Devices Inc
• Series: -r

Specifications of EVAL-AD9837SDZ

• Main Purpose: Timing, Direct Digital Synthesis (DDS)
• Embedded: No
• Utilized Ic / Part: AD9837
• Primary Attributes: -
• Secondary Attributes: Graphical User Interface
• Kit Application Type: Clock & Timing
• Application Sub Type: Clock Generator
• Kit Contents: Software CD, USB Cable
• Silicon Manufacturer: Analog Devices
• Silicon Core Number: AD9837
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

AD9837
YES
(CONTROL REGISTER WRITE)
(SEE TABLE 10 FOR EXAMPLE)
TO A FREQUENCY REGISTER?
WRITE A FULL 28-BIT WORD
WRITE TWO CONSECUTIVE
FREQUENCY REGISTER?
WRITE ANOTHER FULL
28-BIT WORD TO A
16-BIT WORDS
B28 (D13) = 1
DATA WRITE
YES
NO
N
O
Figure 24. Flowchart for Data Writes
TO A FREQUENCY REGISTER?
(SEE TABLE 11 AND TABLE 12
(CONTROL REGISTER WRITE)
WRITE 14 MSBs OR LSBs
WRITE 14 MSBs OR LSBs
FREQUENCY REGISTER?
WRITE A 16-BIT WORD
Rev. 0 | Page 18 of 28
FOR EXAMPLES)
HLB (D12) = 0/1
B28 (D13) = 0
TO A
NO
YES
YES
N
O
D15, D14 = 11
D11 ... D0 = PHASE DATA
D13 = 0/1 (CHOOSE THE
D12 = X
WRITE TO ANOTHER
PHASE REGISTER?
WRITE TO PHASE
(16-BIT WRITE)
REGISTER?
PHASE REGISTER)
YES
NO
YES