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參數(shù)資料
型號: 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)
文件頁數(shù): 7/31頁
文件大小: 339K
代理商: AD9853
Modulated Output Spectrum with 3.3 V Supply,
a
= 0.25, 20.48 MHz REFCLK
Typical Performance Characteristics–AD9853
–7–
REV. A
0
–10
–100
START 0Hz
STOP 60MHz
6MHz/
–40
–70
–80
–90
–20
–30
–60
–50
RBW = 3kHz
VBW = 3kHz
SWT = 17s
RF ATT = 10dB
REF LVL = –20dBm
Figure 1. QPSK, 320 kb/s, A
OUT
= 10 MHz
0
–10
–100
START 0Hz
STOP 60MHz
6MHz/
–40
–70
–80
–90
–20
–30
–60
–50
RBW = 3kHz
VBW = 3kHz
SWT = 17s
RF ATT = 10dB
REF LVL = –20dBm
Figure 2. QPSK, 640 kb/s, A
OUT
= 20 MHz
0
–10
–100
START 0Hz
STOP60 MHz
6MHz/
–40
–70
–80
–90
–20
–30
–60
–50
RBW = 3kHz
VBW = 3kHz
SWT = 17s
RF ATT = 10dB
REF LVL = –20dBm
Figure 3. QPSK, 1.28 Mb/s, A
OUT
= 42 MHz
0
–10
–100
START 0Hz
STOP 60MHz
6MHz/
–40
–70
–80
–90
–20
–30
–60
–50
RBW = 3kHz
VBW = 3kHz
SWT = 17s
RF ATT = 10dB
REF LVL = –20dBm
Figure 4. QPSK, 1.28 Mb/s, A
OUT
= 10 MHz
0
–10
–100
START 0Hz
STOP 60MHz
6MHz/
–40
–70
–80
–90
–20
–30
–60
–50
RBW = 3kHz
VBW = 3kHz
SWT = 17s
RF ATT = 10dB
REF LVL = –20dBm
Figure 5. QPSK, 2.56 Mb/s, A
OUT
= 20 MHz
0
–10
–100
START 0Hz
STOP60 MHz
6MHz/
–40
–70
–80
–90
–20
–30
–60
–50
RBW = 3kHz
VBW = 3kHz
SWT = 17s
RF ATT = 10dB
REF LVL = –20dBm
Figure 6. QPSK, 5.12 Mb/s, A
OUT
= 42 MHz
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