参数资料
型号: AD9786BSVZRL
厂商: Analog Devices Inc
文件页数: 16/56页
文件大小: 0K
描述: IC DAC 16BIT INTERPOL/SP 80TQFP
产品培训模块: Data Converter Fundamentals
DAC Architectures
标准包装: 1,000
系列: TxDAC+®
位数: 16
数据接口: 并联
转换器数目: 1
电压电源: 单电源
功率耗散(最大): 1.25W
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 80-TQFP 裸露焊盘
供应商设备封装: 80-TQFP-EP(12x12)
包装: 带卷 (TR)
输出数目和类型: 2 电流,单极
采样率(每秒): 500M
AD9786
Rev. B | Page 23 of 56
Table 14.
DATA(02)
Bit
Direction
Default
Description
DATAFMT
7
I
0
0: Twos complement data format
1: Unsigned binary input data format
ONEPORT
6
I
0
0: I and Q input data onto Port 1 and Port 2, respectively
1: I and Q input data interleaved onto Port 1
DCLKSTR
5
I
0
0: DATACLK pin, 12 mA drive strength
1: DATACLK pin, 24 mA drive strength
DCLKPOL
4
I
0
0: Input data latched on DATACLK/DACCLK rising edge (dependent on mode)
1: Input data latched on DATACLK/DACCLK falling edge (dependent on mode)
DCLKEXT
3
I
0
0: DATACLK pin inputs channel data rate or modulator synchronizer clock
1: DATACLK pin outputs channel data rate or modulator synchronizer clock
DCLKCRC
2
I
0
0: With DATACLK pin as input, DATACLK clock recovery off
1: With DATACLK pin as input, DATACLK clock recovery on
IQPOL
1
I
0
0: In one-port mode, IQSEL = 1 latches data into I channel, IQSEL = 0 latches data
into Q channel
1: In one-port mode, IQSEL = 0 latches data into I channel, IQSEL = 1 latches data
into Q channel
GRAYDIN
0
I
0
0: Gray decoder off
1: Gray decoder on
Table 15.
MODULATE(03)
Bit
Direction
Default
Description
MODDUAL
0x03[5]
CHANNEL
0x03[7]
0
I channel processing routed to DAC
0
1
Q channel processing routed to DAC
1
0
Modulator real output routed to DAC
CHANNEL
7
I
0
1
Modulator imaginary output routed to DAC
HILBERT
6
I
0
1: With MODDUAL on, Hilbert transform on
MODDUAL
5
I
0
0: Modulator uses a single channel
1: Modulator uses both I and Q channels
SIDEBAND
4
I
0
0: With MODDUAL on, upper sideband rejected
1: With MODDUAL on, lower sideband rejected
MOD[1:0]
[3:2]
I
00
00: No modulation
01: fS/2 modulation
10: fS/4 modulation
11: fS/8 modulation
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