參數(shù)資料
型號(hào): AD9148BBPZ
廠商: Analog Devices Inc
文件頁(yè)數(shù): 33/72頁(yè)
文件大?。?/td> 0K
描述: IC DAC 16BIT SPI/SRL 196BGA
標(biāo)準(zhǔn)包裝: 1
系列: TxDAC+®
設(shè)置時(shí)間: 20ns
位數(shù): 16
數(shù)據(jù)接口: 串行,SPI?
轉(zhuǎn)換器數(shù)目: 4
電壓電源: 單電源
功率耗散(最大): 2.67W
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 196-LFBGA 裸露焊盤
供應(yīng)商設(shè)備封裝: 196-BGA
包裝: 托盤
輸出數(shù)目和類型: 4 電流,單極
采樣率(每秒): 1G
Data Sheet
AD9148
Rev. B | Page 39 of 72
Register Name
Addr
(Hex)
Bit
Name
Function
Default
FTW (LSB)
54
7:0
FTW[7:0]
See Register 0x57.
0
FTW
55
7:0
FTW[15:8]
See Register 0x57.
0
FTW
56
7:0
FTW [23:16]
See Register 0x57.
0
FTW (MSB)
57
7:0
FTW [31:24]
FTW[31:0] is the 32-bit frequency tuning word that
determines the frequency of the complex carrier generated
by the on-chip NCO. The frequency is not updated when the
FTW registers are written. The values are only updated when
Register 0x5A[2] transitions from 0 to 1.
0
Phase Offset MSB
58
7:0
NCO Phase
Offset[15:8]
See Register 0x59.
0
Phase Offset LSB
59
7:0
NCO Phase
Offset[7:0]
NCO Phase Offset[15:0] sets the phase of the complex carrier
signal when the NCO is reset. The phase offset spans between
0 and 360. Each bit represents an offset of 0.0055°. Value is
in twos complement format.
0
DDS/Mod Control
5A
7
Bypass DDS/MOD
1 = bypass NCO.
1
5
Frame NCO reset ack 1 = indicates that the NCO has been reset due to an
extended FRAMEx_x pulse signal.
0
4
Frame NCO
reset request
0
→1 = The NCO is reset on the first extended FRAMEx_x
pulse after this bit transitions from 0 to 1.
0
3
FTW update ack
1 = indicates that the FTW has been updated with the
SPI value.
0
2
FTW update request 0
→1 = FTW is updated with the SPI value on a 0-to-1
transition of this bit.
0
Sideband select
0 = The modulator output high-side image.
0
1 = The modulator output low-side image. The image is
spectrally inverted compared to the input data.
Die Temp Control 0
5C
1
Latch temp data
0
→ 1 = latches temp sensor data. This should be completed
before the Die Temp[15:0] is readback.
0
Temp sensor
power-down
1 = powers down the aux ADC that converts die temperature. 1
Die Temp Control 1
5D
7:0
00001010
Set these bits to 00001010 for optimal temperature sensor
operation.
100000
Die Temp (LSBs)
5E
7:0
Die Temp[7:0]
Die Temp[15:0] indicates the approximate die temperature.
Read-
only
Die Temp (MSBs)
5F
7:0
Die Temp[15:8]
Die Temp[15:0] indicates the approximate die temperature.
Read-
only
DCI Delay
72
1:0
DCI delay
Programmable delay added DCI.
00
00 = no added delay.
01 = 200 ps delay.
10 = 400 ps delay.
11 = 600 ps delay.
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