AD9957 Analog Devices, AD9957 Datasheet - Page 25

• Manufacturer Part Number: AD9957
• Description: 1 GSPS Quadrature Digital Upconverter
• Manufacturer: Analog Devices

www.DataSheet4U.com
DataSheet
4
PRELIMINARY TECHNICAL DATA
Register #0
Register #1
IO Update
Address)
Register
Segment
Segment
Register
Register
Register
Register
U
(Serial
QDUC
QDUC
Name
(04h)
RAM
(05h)
RAM
(06h)
FTW
(07h)
POW
(08h)
(09h)
Rate
ASF
.com
Bit Range
(Internal
Address)
<31:24>
<23:16>
<31:24>
<23:16>
<47:40>
<39:32>
<31:24>
<23:16>
<47:40>
<39:32>
<31:24>
<23:16>
<31:24>
<23:16>
<15:8>
<15:8>
<15:8>
<15:8>
<15:8>
<15:8>
<7:0>
<7:0>
<7:0>
<7:0>
<7:0>
<7:0>
Beginning Address <1:0>
Beginning Address <1:0>
(MSB)
RAM Segment 0 Final
RAM Segment 1 Final
Bit 7
RAM Segment 0
RAM Segment 1
Address <1:0>
Address <1:0>
Bit 6
Amplitude Scale Factor <5:0>
Bit5
RAM Segment 0 Address Ramp Rate <15:8>
RAM Segment 1 Address Ramp Rate <15:8>
RAM Segment 0 Address Ramp Rate <7:0>
RAM Segment 1 Address Ramp Rate <7:0>
Rev. PrF | Page 25 of 38
RAM Segment 0 Beginning Address <9:2>
RAM Segment 1 Beginning Address <9:2>
RAM Segment 0 Final Address <9:2>
RAM Segment 1 Final Address <9:2>
Frequency Tuning Word <31:24>
Frequency Tuning Word <23:16>
Frequency Tuning Word <15:8>
Frequency Tuning Word <7:0>
Amplitude Scale Factor <13:6>
Amplitude Ramp Rate <15:8>
Amplitude Ramp Rate <7:0>
Phase Offset Word <15:8>
Phase Offset Word <7:0>
IO Update Rate <31:24>
IO Update Rate <23:16>
IO Update Rate <15:8>
IO Update Rate <7:0>
OPEN
OPEN
Bit 4
Bit 3
OPEN
OPEN
RAM Segment 0 Mode Control <2:0>
RAM Segment 1 Mode Control <2:0>
Bit 2
Amplitude Ramp Rate
Speed Control <1:0>
Bit 1
Bit 0
AD9957
Value OR
Default
Profile
ISFC0
ISFC0
ISFC0
ISFC0
ISFC0
ISFC0
ISFC1
ISFC1
ISFC1
ISFC1
ISFC1
ISFC1
FFh
FFh
FFh
FFh
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h