参数资料
型号: AD9148BBPZRL
厂商: Analog Devices Inc
文件页数: 25/72页
文件大小: 0K
描述: IC DAC 16BIT SPI/SRL 196BGA
标准包装: 1,500
系列: TxDAC+®
设置时间: 20ns
位数: 16
数据接口: 串行,SPI?
转换器数目: 4
电压电源: 单电源
功率耗散(最大): 2.67W
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 196-LFBGA 裸露焊盘
供应商设备封装: 196-BGA
包装: 带卷 (TR)
输出数目和类型: 4 电流,单极
采样率(每秒): 1G
Data Sheet
AD9148
Rev. B | Page 31 of 72
Register Name
Addr
(Hex)
Bit
Name
Function
Default
FIFO Status Port A
18
7:0
FIFO Level
Thermometer encoded measure of the FIFO level.
Read-
only
FIFO Status/
Control Port B
19
7
FIFO Warning 1
FIFO read and write pointers within ±1.
Read-
only
6
FIFO Warning 2
FIFO read and write pointers within ±2.
Read-
only
5
FIFO reset aligned
FIFO read and write pointers aligned after chip reset.
Read-
only
4
FIFO SPI align
acknowledge
FIFO read and write pointers aligned after SPI driven FIFO
reset.
Read-
only
3
FIFO SPI align
requesting
Request FIFO read and write pointers alignment via SPI.
0
2:0
FIFO phase offset
FIFO read and write pointer phase offset from optimal
phase following FIFO reset.
000
000 = 0 offset from optimal phase.
111 = 7 offset from optimal phase.
The optimal value is 0.
FIFO Status Port B
1A
7:0
FIFO level
Thermometer encoded measure of the FIFO level.
Read-
only
HB1 Control
1C
7
Enable pre mod
Enable fS/2 modulation stage that precedes Stage 1
interpolation filter.
0
6
Bypass sinc-1
Sinc-1 filter bypass.
1
2:1
HB1[1:0]
Modulation mode for first stage interpolation filter
(fHB1 = 2 × fIN1).
00
00 = input signal modulated by dc. Filter pass band is
from 0.2 to +0.2 of fHB1.
01 = input signal modulated by dc. Filter pass band is
from 0.05 to 0.45 of fHB1.
10 = input signal modulated by fHB1/2. Filter pass band is
from 0.3 to 0.7 of fHB1.
11 = input signal modulated by fHB1/2. Filter pass band is
from 0.55 to 0.95 of fHB1.
0
Bypass HB1
First stage interpolation filter bypass.
0
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