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AD9957/PCBZ Datasheet(PDF) 52 Page - Analog Devices

Part # AD9957/PCBZ
Description  1 GSPS Quadrature Digital Upconverter
PDF  62 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

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Data Sheet
AD9957
Rev. E | Page 51 of 61
Table 14. RAM, ASF, Multichip Sync, and Profile 0 Registers
Register Name
(Serial Address)
Bit Range
(Internal
Address)
Bit 7
(MSB)
Bit 6
Bit5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
(LSB)
Default
Value
RAM Segment
Register 0 (0x05)
<47:40>
RAM Address Step Rate 0<15:8>
<39:32>
RAM Address Step Rate 0<7:0>
<31:24>
RAM End Address 0<9:2>
<23:16>
RAM End
Address 0<1:0>
Open
<15:8>
RAM Start Address 0<9:2>
<7:0>
RAM Start
Address 0<1:0>
Open
RAM Playback Mode 0<2:0>
RAM Segment
Register 1 (0x06)
<47:40>
RAM Address Step Rate 1<15:8>
<39:32>
RAM Address Step Rate 1<7:0>
<31:24>
RAM End Address 1<9:2>
<23:16>
RAM End
Address 1<1:0>
Open
<15:8>
RAM Start Address 1<9:2>
<7:0>
RAM Start
Address 1<1:0>
Open
RAM Playback Mode 1<2:0>
Amplitude Scale
Factor (ASF)
Register
(0x09)
<31:24>
Amplitude Ramp Rate<15:8>
0x00
<23:16>
Amplitude Ramp Rate<7:0>
0x00
<15:8>
Amplitude Scale Factor<13:6>
0x00
<7:0>
Amplitude Scale Factor<5:0>
Amplitude Step Size<1:0>
0x00
Multichip Sync
Register (0x0A)
<31:24>
Sync Validation Delay<3:0>
Sync
Receiver
Enable
Sync
Generator
Enable
Sync
Generator
Polarity
Open
0x00
<23:16>
Sync State Preset Value<5:0>
Open
0x00
<15:8>
Sync Generator Delay<4:0>
Open
0x00
<7:0>
Sync Receiver Delay<4:0>
Open
0x00
Profile 0
Register—Single
Tone (0x0E)
<63:56>
Open
Amplitude Scale Factor<13:8>
0x08
<55:48>
Amplitude Scale Factor<7:0>
0xB5
<47:40>
Phase Offset Word<15:8>
0x00
<39:32>
Phase Offset Word<7:0>
0x00
<31:24>
Frequency Tuning Word<31:24>
0x00
<23:16>
Frequency Tuning Word<23:16>
0x00
<15:8>
Frequency Tuning Word<15:8>
0x00
<7:0>
Frequency Tuning Word<7:0>
0x00
Profile 0
Register—QDUC
(0x0E)
<63:56>
CCI Interpolation Rate<7:2>
Spectral Invert
Inverse
CCI Bypass
0x00
<55:48>
Output Scale Factor
0x00
<47:40>
Phase Offset Word<15:8>
0x00
<39:32>
Phase Offset Word<7:0>
0x00
<31:24>
Frequency Tuning Word<31:24>
0x00
<23:16>
Frequency Tuning Word<23:16>
0x00
<15:8>
Frequency Tuning Word<15:8>
0x00
<7:0>
Frequency Tuning Word<7:0>
0x00



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