參數(shù)資料
型號(hào)： AD9853
廠商： Analog Devices, Inc.
英文描述： Programmable Digital QPSK/16-QAM Modulator(可編程數(shù)字的四相移鍵控/16-正交幅度調(diào)制的調(diào)節(jié)器)
中文描述： 可編程數(shù)字QPSK/16-QAM調(diào)制器（可編程數(shù)字的四相移鍵控/ 16 -正交幅度調(diào)制的調(diào)節(jié)器）
文件頁(yè)數(shù)： 30/31頁(yè)
文件大?。?/td> 339K
代理商： AD9853
AD9853
–30–
REV. A
Plots of typical output spectrum from the AD9853-45PCB
evaluation board (conditions: DUT supply voltage = +3.3 V,
QPSK modulation, 2.048 Mb/s, 20.48 MHz ext. REFCLK,
6
×
REFCLK enabled, SRRC filter function, A
OUT
= 40 MHz,
α
= 0.25, 50 MHz low-pass filter).
–25
–35
REF 50.0MHz
INC 10MHz
RES bw 60MHz
VID bw 5.4kHz
10.0MHz/div
500ms/div
–65
–95
–105
–45
–55
–85
–75
ATTEN 30dB 50
V
TG off
Figure 41. Direct DAC Output
–25
–35
REF 50.0MHz
INC 10MHz
RES bw 10MHz
VID bw 5.4kHz
10.0MHz/div
500ms/div
–65
–95
–105
–45
–55
–85
–75
ATTEN 30dB 50
V
TG off
2ND HARMONIC
Figure 42. Output of AD8320 Programmable Line Driver
Amplifier Driven by AD9853 Modulator
Plots of typical output spectrum from the AD9853-65PCB
evaluation board (conditions: DUT supply voltage = +4.0 V,
QPSK modulation, 2.7792 Mb/s, 27.792 MHz ext. REFCLK,
6
×
REFCLK enabled, SRRC filter function, A
OUT
= 60 MHz,
α
= 0.25, 70 MHz low-pass filter).
–25
–35
REF 100.0MHz
INC 20MHz
RES bw 10MHz
VID bw 5.4kHz
20.0MHz/div
1s/div
–65
–95
–105
–45
–55
–85
–75
ATTEN 10dB 50
V
TG off
Figure 43. Direct DAC Output
–2.0
12.0
REF 100.0MHz
INC 20MHz
RES bw 10MHz
VID bw 5.4kHz
20.0MHz/div
1s/div
42.0
72.0
82.0
22.0
32.0
62.0
52.0
ATTEN 30dB 50
V
TG off
2ND
HARMONIC
3RD
HARMONIC
Figure 44. Output of AD8320 Programmable Line Driver
Amplifier Driven by AD9853 Modulator
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD9853-45PCB 制造商:AD 制造商全稱:Analog Devices 功能描述:Programmable Digital OPSK/16-QAM Modulator
AD9853-65PCB 制造商:AD 制造商全稱:Analog Devices 功能描述:Programmable Digital OPSK/16-QAM Modulator
AD9853AS 制造商:Analog Devices 功能描述: 制造商:Rochester Electronics LLC 功能描述:- Bulk
AD9854 制造商:AD 制造商全稱:Analog Devices 功能描述:CMOS 300 MHz Quadrature Complete-DDS
AD9854/PCB 制造商:Analog Devices 功能描述:Evaluation Board For IC Digital Synthesizer Single 制造商:Analog Devices 功能描述:Direct Digital Synthesizer IC (DDS)
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