參數(shù)資料
型號: AD9957_07
廠商: Analog Devices, Inc.
英文描述: 1 GSPS Quadrature Digital Upconverter with 18-Bit IQ Data Path and 14-Bit DAC
中文描述: 1 GSPS的正交數(shù)字上變頻器與18位智商數(shù)據(jù)路徑和14位DAC
文件頁數(shù): 44/60頁
文件大?。?/td> 840K
代理商: AD9957_07
AD9957
REGISTER MAP AND BIT DESCRIPTIONS
REGISTER MAP
Note that the highest number found in the Bit Range column for each register in the following tables is the MSB and the lowest number is
the LSB for that register.
Rev. 0 | Page 44 of 60
Table 13. Control Registers
Register
Name
(Serial
Address)
Address)
<31:24>
Control
Function
Register 1
CFR1
(0x00)
Bit
Range
(Internal
Bit 7
(MSB)
RAM
Enable
Bit 6
Bit 5
Bit4
RAM
Playback
Destination
Bit 3
Open
Bit 2
Bit 1
Operating Mode
Bit 0
(LSB)
Default
Value
0x00
Open
<23:16>
Manual
OSK
External
Control
Inverse
Sinc Filter
Enable
Clear CCI
Open
Select
DDS
Sine
Output
Select
Auto-
OSK
LSB First
0x00
<15:8>
Open
Autoclear
Phase
Accum
REFCLK
Input
Power-Down
Blackfin
Early Frame
Sync Enable
Open
Clear Phase
Accum
Load ARR @
I/O Update
OSK
Enable
0x00
<7:0>
Digital
Power-
Down
Blackfin
Interface
Mode
Active
Internal
I/O Update
Active
I/O Update Rate Control
DAC Power-
Down
Aux DAC
Power-Down
External
Power-Down
Control
Auto
Power-Down
Enable
Open
SDIO
Input
Only
0x00
<31:24>
Blackfin Bit
Order
0x00
<23:16>
SYNC_CLK
Enable
Open
Read
Effective
FTW
Q-First
Data
Pairing
0x40
<15:8>
PDCLK Rate
Control
Data Format
PDCLK
Enable
PDCLK
Invert
TxEnable
Invert
0x08
Control
Function
Register 2
CFR2
(0x01)
<7:0>
Matched
Latency
Enable
Data
Assembler
Hold Last
Value
Sync Timing
Validation
Disable
Open
0x20
<31:24>
<23:16>
<15:8>
DRV0<1:0>
Open
I
CP
<2:0>
VCO SEL<2:0>
Open
0x1F
0x3F
0x40
Open
REFCLK
Input
Divider
Bypass
REFCLK
Input
Divider
ResetB
Open
PLL
Enable
Control
Function
Register 3
CFR3
(0x02)
<7:0>
<31:24>
<23:16>
<15:8>
<7:0>
N<6:0>
Open
0x00
0x00
0x00
0x7F
0x7F
Open
Open
Open
FSC<7:0>
Auxiliary
DAC
Control
Register
(0x03)
I/O Update
Rate
Register
(0x04)
<31:24>
<23:16>
<15:8>
<7:0>
I/O Update Rate<31:24>
I/O Update Rate<23:16>
I/O Update Rate<15:8>
I/O Update Rate<7:0>
0xFF
0xFF
0xFF
0xFF
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