參數(shù)資料
型號: AD7011
廠商: Analog Devices, Inc.
英文描述: CMOS, ADC p/4 DQPSK Baseband Transmit Port
中文描述: 的CMOS ADC的p / 4 DQPSK基帶傳輸端口
文件頁數(shù): 11/12頁
文件大?。?/td> 389K
代理商: AD7011
AD7011
REV. B
–11–
0
–40
–80
1
1000
100
10
0.1
–60
–20
–30
–50
–70
–10
FREQUENCY – kHz
M
Figure 13. Reconstruction Filter Frequency Response for
the I and Q DACs, MCLK = 2.56 MHz
I Channel – Volts
1.2
–1.2
1.2
0
–0.8
–0.8
–0.4
–1.2
0.8
0.4
0.8
0.4
0
–0.4
Q
Figure 14. AD7011 I vs. Q Waveforms When Transmitting
Random Data
I Channel – Volts
Q
1.2
–1.2
1.2
0
–0.8
–0.8
–0.4
–1.2
0.8
0.4
0.8
0.4
0
–0.4
Figure 15. AD7011 Transmit Constellation Diagram
0
–40
–80
1
1000
100
10
0.1
–60
–20
–30
–50
–70
–10
FREQUENCY – kHz
M
Figure 16. Reconstruction Filter Frequency Response for
the I and Q DACs, MCLK = 3.1104 MHz
I Channel – Volts
Q
1.2
–1.2
1.2
0
–0.8
–0.8
–0.4
–1.2
0.8
0.4
0.8
0.4
0
–0.4
Figure 17. AD7011 I vs. Q Waveforms Filtered by an Ideal
Root Raised Cosine Receive Filter
I Channel – Volts
Q
1.2
–1.2
1.2
0
–0.8
–0.8
–0.4
–1.2
0.8
0.4
0.8
0.4
0
–0.4
Figure 18. AD7011 Constellation Diagram When Filtered
by an Ideal Root Raised Cosine Receive Filter
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