參數(shù)資料
型號(hào): AD9856AST
廠商: ANALOG DEVICES INC
元件分類: 通信及網(wǎng)絡(luò)
英文描述: CMOS 200 MHz Quadrature Digital Upconverter
中文描述: SPECIALTY TELECOM CIRCUIT, PQFP48
封裝: LQFP-48
文件頁(yè)數(shù): 6/32頁(yè)
文件大?。?/td> 429K
代理商: AD9856AST
AD9856
Typical Modulated Output Spectral Plots
–6–
REV. B
START 0Hz
5MHz/
STOP 50MHz
0
–8
REF LVL
–25dBm
d
1AP
–16
–24
–32
–40
–48
–56
–64
–72
–80
RBW
VBW
SWT
10kHz
1kHz
12.5s Unit
RF ATT 10dB
dBm
Figure 1. QPSK at 42 MHz and 2.56 MS/s; 10.24 MHz
External Clock with REFCLK Multiplier = 12, CIC = 3,
HB3 On, 2
×
Data
START 0Hz
4MHz/
STOP 40MHz
0
–8
REF LVL
–30dBm
d
1AP
–16
–24
–32
–40
–48
–56
–64
–72
–80
RBW 10kHz
VBW 1kHz
SWT
RF ATT
10dB
10s
UNIT
dBm
Figure 2. 64-QAM at 28 MHz and 6 MS/s; 36 MHz External
Clock with REFCLK Multiplier = 4, CIC = 2, HB3 Off, 3
×
Data
START 0Hz
8MHz/
STOP 80MHz
0
–8
REF LVL
–25dBm
d
1AP
–16
–24
–32
–40
–48
–56
–64
–72
–80
RBW
VBW 10kHz
SWT
RF ATT
10dB
20s Unit
dBm
Figure 3. 16-QAM at 65 MHz and 2.56 MS/s; 10.24 MHz
External Clock with REFCLK Multiplier = 18, CIC = 9,
HB3 Off, 2
×
Data
START 0Hz
5MHz/
STOP 50MHz
0
–8
REF LVL
–30dBm
d
1AP
–16
–24
–32
–40
–48
–56
–64
–72
–80
RBW
VBW 1kHz
SWT
10kHz
RF ATT
10dB
12.5s
UNIT
dBm
Figure 4. 256-QAM at 38 MHz and 6 MS/s; 48 MHz External
Clock with REFCLK Multiplier = 4, CIC = 2, HB3 Off, 4
×
Data
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