- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄373967 > AD9786 (Analog Devices, Inc.) 16-Bit, 200 MSPS/500 MSPS TxDAC+ with 2】/4】/8】 Interpolation and Signal Processing PDF資料下載
參數(shù)資料
| 型號： | AD9786 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 16-Bit, 200 MSPS/500 MSPS TxDAC+ with 2】/4】/8】 Interpolation and Signal Processing |
| 中文描述： | 16位，200 MSPS/500 MSPS的TxDAC系列2】/ 4】/ 8】插值與信號處理 |
| 文件頁數(shù)： | 33/60頁 |
| 文件大?。?/td> | 1497K |
| 代理商： | AD9786 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁當(dāng)前第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁
AD9786
Rev. 0 | Page 33 of 60
–8
–6
–4
–2
–0
2
4
6
8
–150
–100
–50
0
–8
–6
–4
–2
0
2
4
6
8
–150
–100
–50
0
–8
–6
–4
–2
0
2
4
6
8
–150
–100
–50
0
–8
–6
–4
–2
0
2
4
6
8
–150
–100
–50
0
NO INTERPOLATION
×4INTERPOLATION
×2INTERPOLATION
×8INTERPOLATION
SINCRESPONSE
f
SIN
f
SIN
f
SIN
f
SIN
INTERP[1] = 1
INTERP[0] = 1
INTERP[1] = 1
INTERP[0] = 0
INTERP[1] = 0
INTERP[0] = 1
INTERP[1] = 0
INTERP[0] = 0
0
Figure 57. Interpolation Modes
REAL AND COMPLEX SIGNALS
A complex signal contains both magnitude and phase
information. Given two signals at the same frequency, if a point
in time can be taken such that the signal leading in phase is
cosinusoidal and the lagging signal is sinusoidal, then
information pertaining to the magnitude and phase of a
combination of the two signals can be derived; the combination
of the two signals can be considered a complex signal. The
cosine and sine can be represented as a series of exponentials;
recalling that a multiplication by j is a counterclockwise rotation
about the Re/Im plane, the phasor representation of a complex
signal, with frequency f, can be shown in Figure 58.
Im
Re
C
Re
Im
A/2
A/2
A/2
A/2
FREQUENCY
0
+f
–f
A
2
π
ft
C = Ae
2
π
ft
= Acos(2
π
ft) + jAsin(2
π
ft)
e
+j2
π
ft
+ e
–j2
π
ft
2
e
+j2
π
ft
+ e
–j2
π
ft
2j
Acos(2
π
ft) = A
=
[
e
+j2
π
ft
+ e
–j2
π
ft
]
A
2
Asin(2
π
ft) = A
=
[
j
e
+j2
π
ft
+ e
–j2
π
ft
]
A
2
0
Figure 58. Complex Phasor Representation
The cosine term represents a signal on the real plane with
mirror symmetry about dc; this is referred to as the real, in-
phase or I component of a complex signal. The sine term
represents a signal on the imaginary plane with mirror
asymmetry about dc; this term is referred to as the imaginary,
quadrature or Q complex signal component.
The AD9786 has two channels of interpolation filters, allowing
both I and Q components to be shaped by the same filter
transfer function. The interpolation filters’ frequency response
is a real transfer function. Two DACs are required to represent a
complex signal. A single DAC can only synthesize a real signal.
When a DAC synthesizes a real signal, negative frequency
components fold onto the positive frequency axis. If the input to
the DAC is mirror symmetrical about dc, the folded negative
frequency components fold directly onto the positive frequency
components in phase producing constructive signal summation.
If the input to the DAC is not mirror symmetric about dc,
negative frequency components may not be in phase with
positive frequency components and will cause destructive signal
summation. Different applications may or may not benefit from
either type of signal summation.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD9786BSVRL | 16-Bit, 200 MSPS/500 MSPS TxDAC+ with 2】/4】/8】 Interpolation and Signal Processing |
| AD9801 | CCD Signal Processor For Electronic Cameras(用于電子照相機(jī)的CCD信號處理器) |
| AD9802JST | Silver Mica Capacitor; Capacitance:10pF; Capacitance Tolerance: 5%; Series:CD17; Voltage Rating:500VDC; Capacitor Dielectric Material:Mica; Termination:Radial Leaded; Lead Pitch:5.9mm; Leaded Process Compatible:Yes RoHS Compliant: Yes |
| AD9802 | .50" x 50 Black/Clear 240 Industrial Label Supply RoHS Compliant: NA |
| AD9803 | CCD And Video Signal Processor For Electronic Cameras(電子照相機(jī)的CCD信號和視頻信號處理器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD9786BSV | 制造商:Analog Devices 功能描述:DAC 1-CH Interpolation Filter 16-bit 80-Pin TQFP EP 制造商:Analog Devices 功能描述:IC 16BIT DAC SMD 9786 TQFP80 |
| AD9786BSVRL | 制造商:Analog Devices 功能描述:DAC 1-CH Interpolation Filter 16-bit 80-Pin TQFP EP T/R |
| AD9786BSVZ | 功能描述:IC DAC 16BIT INTERPOL/SP 80TQFP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:TxDAC+® 標(biāo)準(zhǔn)包裝:1 系列:- 設(shè)置時(shí)間:4.5µs 位數(shù):12 數(shù)據(jù)接口:串行，SPI? 轉(zhuǎn)換器數(shù)目:1 電壓電源:單電源 功率耗散（最大）:- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:8-SOICN 包裝:剪切帶 (CT) 輸出數(shù)目和類型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:* 其它名稱:MCP4921T-E/SNCTMCP4921T-E/SNRCTMCP4921T-E/SNRCT-ND |
| AD9786BSVZRL | 功能描述:IC DAC 16BIT INTERPOL/SP 80TQFP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:TxDAC+® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1,000 系列:- 設(shè)置時(shí)間:1µs 位數(shù):8 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:8 電壓電源:雙 ± 功率耗散（最大）:941mW 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOIC W 包裝:帶卷 (TR) 輸出數(shù)目和類型:8 電壓，單極 采樣率（每秒）:* |
| AD9786-EB | 制造商:Rochester Electronics LLC 功能描述:EVAL BOARD FOR AD9786 - Bulk |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。