- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄373972 > AD9957_07 (Analog Devices, Inc.) 1 GSPS Quadrature Digital Upconverter with 18-Bit IQ Data Path and 14-Bit DAC PDF資料下載
參數(shù)資料
| 型號： | AD9957_07 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 1 GSPS Quadrature Digital Upconverter with 18-Bit IQ Data Path and 14-Bit DAC |
| 中文描述： | 1 GSPS的正交數(shù)字上變頻器與18位智商數(shù)據(jù)路徑和14位DAC |
| 文件頁數(shù)： | 15/60頁 |
| 文件大小： | 840K |
| 代理商： | AD9957_07 |
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頁當前第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
AD9957
MODES OF OPERATION
OVERVIEW
The AD9957 has three basic operating modes
Rev. 0 | Page 15 of 60
ctral images and retaining the original
ion
A detailed block diagram of
The inverse sinc filter is available in all three modes.
Quadrature modulation (QDUC) mode (default)
Interpolating DAC mode
Single tone mode
The active mode is selected via the operating mode bits in
Control Function Register 1 (CFR1). Single tone mode allows
the device to operate as a sinusoidal generator with the DDS
driving the DAC directly.
Interpolating DAC mode bypasses the DDS, allowing the user
to deliver baseband data to the device at a sample rate lower
than that of the DAC. An internal chain of rate interpolation
filters the user data, upsample, to the DAC sample rate. Com-
bined, the filters provide for programmable rate interpolation
while suppressing spe
baseband spectrum.
QDUC mode employs both the DDS and the rate interpolat
filters. In this case, two parallel banks of rate interpolation
filters allow baseband processing of in-phase and quadrature
(I/Q) signals with the DDS providing the carrier signal to be
modulated by the baseband signals.
the AD9957 is shown in Figure 25.
0
PDCLK
I/Q IN
E
DAC_RSET
IOUT
IOUT
TxENABLE
FTW
PW
DAC GAIN
θ
cos (
ω
t+
θ
)
I
S
F
CLOCK
F
P
8
SYSCLK
PLL
÷2
C
REF_CLK
REF_CLK
REFCLK_OUT
XTAL_SEL
PARALLEL DATA
TIMING AND CONTROL
AD9957
sin (
ω
t+
θ
)
S
S
P
P
M
2
2
2
C
O
DDS
AUX
DAC
8-BIT
POWER
DOWN
CONTROL
R
RAM
P
C
I
S
S
SERIAL I/O
PORT
I
PROGRAMMING
REGISTERS
3
I Q
IS QS
18
D
I
Q
IS
QS
B
18
18
16
16
H
F
I
C
C
(
H
F
I
C
C
(
OSK
INTERNAL CLOCK TIMING AND CONTROL
DAC
14-BIT
OUTPUT
SCALE
FACTOR
Figure 25. Detailed Block Diagram
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD9958BCPZ-REEL7 | 2-Channel 500 MSPS DDS with 10-Bit DACs |
| AD9958 | 2-Channel 500 MSPS DDS with 10-Bit DACs |
| AD9958BCPZ | 2-Channel 500 MSPS DDS with 10-Bit DACs |
| AD9970 | 14-Bit CCD Signal Processor with Precision Timing Generator |
| AD9971 | 12-Bit CCD Signal Processor with Precision Timing |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD9957BCPZ | 制造商:Analog Devices 功能描述:GSPS QUADRATURE DIGITAL UPCONVERTER W/18-BIT IQ DATA PATH - Trays |
| AD9957BSVZ | 功能描述:IC DDS 1GSPS 14BIT IQ 100TQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 直接數(shù)字合成 (DDS) 系列:- 產(chǎn)品變化通告:Product Discontinuance 27/Oct/2011 標準包裝:2,500 系列:- 分辨率（位）:10 b 主 fclk:25MHz 調(diào)節(jié)字寬（位）:32 b 電源電壓:2.97 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:16-TSSOP 包裝:帶卷 (TR) |
| AD9957BSVZ-REEL | 功能描述:IC DDS 1GSPS 14BIT IQ 100TQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 直接數(shù)字合成 (DDS) 系列:- 產(chǎn)品變化通告:Product Discontinuance 27/Oct/2011 標準包裝:2,500 系列:- 分辨率（位）:10 b 主 fclk:25MHz 調(diào)節(jié)字寬（位）:32 b 電源電壓:2.97 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:16-TSSOP 包裝:帶卷 (TR) |
| AD9957BSVZREEL13 | 制造商:AD 制造商全稱:Analog Devices 功能描述:1 GSPS Quadrature Digital Upconverter w/18-Bit IQ Data Path and 14-Bit DAC |
| AD9958 | 制造商:AD 制造商全稱:Analog Devices 功能描述:2-Channel 500 MSPS DDS with 10-Bit DACs |
發(fā)布緊急采購，3分鐘左右您將得到回復。