Datasheet

AD9913
Rev. A | Page 27 of 32
Register
Name
(Serial
Address)
[Serial Bit
Range]/
Parallel
Address
MSB
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1
LSB
Bit 0
Default
Value
Linear Sweep
Ramp Rate
Register
(0x08)
[7:0]/0x22 Rising Sweep Ramp Rate Word [7:0] 0x00
[15:8]/0x23 Rising Sweep Ramp Rate Word [15:8] 0x00
[23:16]/0x24 Falling Sweep Ramp Rate Word [7:0] 0x00
[31:24]/0x25 Falling Sweep Ramp Rate Word [15:8] 0x00
Profile 0
(0x09)
[7:0]/0x26 Frequency Tuning Word [7:0] 0x00
[15:8]/0x27 Frequency Tuning Word [15:8] 0x00
[23:16]/0x28 Frequency Tuning Word [23:16] 0x00
[31:24]/0x29 Frequency Tuning Word [31:24] 0x00
[39:32]/0x2A Phase Offset Word [7:0] 0x00
[47:40]/0x2B Open [1:0] Phase Offset Word [13:8] 0x00
Profile 1
(0x0A)
[7:0]/0x2C Frequency Tuning Word [7:0] 0x00
[15:8]/0x2D Frequency Tuning Word [15:8] 0x00
[23:16]/0x2E Frequency Tuning Word [23:16] 0x00
[31:24]/0x2F Frequency Tuning Word [31:24] 0x00
[39:32]/0x30 Phase Offset Word [7:0] 0x00
[47:40]/0x31 Open [1:0] Phase Offset Word [13:8] 0x00
Profile 2
(0x0B)
[7:0]/0x32 Frequency Tuning Word [7:0] 0x00
[15:8]/0x33 Frequency Tuning Word [15:8] 0x00
[23:16]/0x34 Frequency Tuning Word [23:16] 0x00
[31:24]/0x35 Frequency Tuning Word [31:24] 0x00
[39:32]/0x36 Phase Offset Word [7:0] 0x00
[47:40]/0x37 Open [1:0] Phase Offset Word [13:8] 0x00
Profile 3
(0x0C)
[7:0]/0x38 Frequency Tuning Word [7:0] 0x00
[15:8]/0x39 Frequency Tuning Word [15:8] 0x00
[23:16]/0x3A Frequency Tuning Word [23:16] 0x00
[31:24]/0x3B Frequency Tuning Word [31:24] 0x00
[39:32]/0x3C Phase Offset Word [7:0] 0x00
[47:40]/0x3D Open [1:0] Phase Offset Word [13:8] 0x00
Profile 4
(0x0D)
[7:0]/0x3E Frequency Tuning Word [7:0] 0x00
[15:8]/0x3F Frequency Tuning Word [15:8] 0x00
[23:16]/0x40 Frequency Tuning Word [23:16] 0x00
[31:24]/0x41 Frequency Tuning Word [31:24] 0x00
[39:32]/0x42 Phase Offset Word [7:0] 0x00
[47:40]/0x43 Open [1:0] Phase Offset Word [13:8] 0x00
Profile 5
(0x0E)
[7:0]/0x44 Frequency Tuning Word [7:0] 0x00
[15:8]/0x45 Frequency Tuning Word [15:8] 0x00
[23:16]/0x46 Frequency Tuning Word [23:16] 0x00
[31:24]/0x47 Frequency Tuning Word [31:24] 0x00
[39:32]/0x48 Phase Offset Word [7:0] 0x00
[47:40]/0x49 Open [1:0] Phase Offset Word [13:8] 0x00
Profile 6
(0x0F)
[7:0]/0x4A Frequency Tuning Word [7:0] 0x00
[15:8]/0x4B Frequency Tuning Word [15:8] 0x00
[23:16]/0x4C Frequency Tuning Word [23:16] 0x00
[31:24]/0x4D Frequency Tuning Word [31:24] 0x00
[39:32]/0x4E Phase Offset Word [7:0] 0x00
[47:40]/0x4F Open Open Phase Offset Word [13:8] 0x00
Profile 7
(0x10)
[7:0]/0x50 Frequency Tuning Word [7:0] 0x00
[15:8]/0x51 Frequency Tuning Word [15:8] 0x00
[23:16]/0x52 Frequency Tuning Word [23:16] 0x00
[31:24]/0x53 Frequency Tuning Word [31:24] 0x00
[39:32]/0x54 Phase Offset Word [7:0] 0x00
[47:40]/0x55 Open Open Phase Offset Word [13:8] 0x00
1
These bits are active immediately following the write sequence of the byte in which they reside in. As a result, they do not require an I/O_UPDATE to enable/disable.