
AD9954
Rev. B | Page 2 of 40
TABLE OF CONTENTS
REVISION HISTORY
5/09—Rev. A to Rev. B
Changes to Figure 29 and Figure 30............................................. 24
Changes to Table 12........................................................................ 26
Changes to Figure 34...................................................................... 35
Updated Outline Dimensions ....................................................... 39
Changes to Ordering Guide .......................................................... 39
1/07—Rev. 0 to Rev. A
Changes to Layout ..............................................................Universal
Changes to Features, General Description, and Figure 1............ 1
Changes to Figure 2.......................................................................... 3
Changes to Table 1............................................................................ 4
Changes to Table 4............................................................................ 8
Changes to Figure 5 to Figure 10.................................................. 10
Changes to Figure 12...................................................................... 11
Changes to Figure 17 to Figure 18 Captions ............................... 12
Deleted Figure 19; Renumbered Sequentially ............................ 12
Added Table 5; Renumbered Sequentially .................................. 13
Changes to Component Block Section and Table 6 ................... 13
Changes to Figure 20...................................................................... 15
Changes to Modes of Operation Section and Table 8................ 16
Changes to Table 9.......................................................................... 17
Changes to Synchronization; Register Updates (I/O UPDATE)
Section and Figure 24..................................................................... 21
Changes to Serial Port Operation Section................................... 23
Changes to Serial Interface Port Pin Description Section,
MSB/LSB Transfers Section, and RAM I/O Via Serial Port
Section.............................................................................................. 24
Inserted Figure 29 and Figure 30; Renumbered Sequentially .. 24
Changes to Instruction Byte Section, Register Maps and
Descriptions Section, and Table 12 .............................................. 25
Changes to Table 13 ....................................................................... 26
Changes to Table 14 ....................................................................... 28
Added Single-Tone Mode Section, Linear Sweep Mode Section,
Table 15, and RAM Mode Section ............................................... 33
Added, and Table 16....................................................................... 34
Inserted Figure 35........................................................................... 36
Inserted Figure 36........................................................................... 37
Inserted Figure 37........................................................................... 38
Updated Outline Dimensions....................................................... 39
Changes to Ordering Guide .......................................................... 39
10/03—Revision 0: Initial Version