參數(shù)資料
型號(hào): AD9786-EBZ
廠商: Analog Devices Inc
文件頁數(shù): 16/56頁
文件大?。?/td> 0K
描述: BOARD EVALUATION FOR AD9786
產(chǎn)品培訓(xùn)模塊: DAC Architectures
標(biāo)準(zhǔn)包裝: 1
系列: TxDAC+®
DAC 的數(shù)量: 1
位數(shù): 16
采樣率(每秒): 500M
數(shù)據(jù)接口: 并聯(lián)
DAC 型: 電流
工作溫度: -40°C ~ 85°C
已供物品: 板,CD
已用 IC / 零件: AD9786
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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