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參數(shù)資料
| 型號： | AD7002AS |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | LC2MOS GSM Baseband I/O Port |
| 中文描述： | TELECOM, CELLULAR, BASEBAND CIRCUIT, PQFP44 |
| 封裝： | PLASTIC, QFP-44 |
| 文件頁數(shù)： | 9/16頁 |
| 文件大小： | 455K |
| 代理商： | AD7002AS |
AD7002
–9–
REV. B
0.0
–60.0
1.00 + 03
1.00 + 07
–45.0
–55.0
1.00 + 04
–50.0
–30.0
–40.0
–35.0
–25.0
–20.0
–15.0
–5.0
–10.0
1.00 + 06
1.00 + 05
FREQUENCY – Hz
G
Figure 5. Transmit Filter Frequency Response
0
–90
6.4
–70
–80
8.0
0
–60
–50
–40
–30
–20
–10
5.6
4.8
4.0
3.2
2.4
FREQUENCY – MHz
1.6
M
GMSK SPECTRUM TEST, DC TO 6.4MHz.
FREQUENCY RESOLUTION: 30.1514kHz
Figure 7. Typical Spectrum Plot of the Transmit Channel
When Transmitting Random Data (0 MHz to 6.4 MHz)
5
–5
–2
–4
–3
1
–1
0
2
3
4
PEAK PHASE TRAJECTORY ERROR = 1.56
°
RMS PHASE TRAJECTORY ERROR = 0.79
°
P
Figure 9. Typical Plot of the Transmit Phase Trajectory
Error
0.80
0.00
1.00 + 03
1.00 + 07
0.20
0.10
1.00 + 04
0.40
0.30
0.50
0.60
0.70
1.00 + 06
1.00 + 05
FREQUENCY – Hz
G
μ
s
Figure 6. Transmit Filter Group Delay
10
–90
1000
–60
–80
100
–70
0
–30
–50
–40
–20
–10
0
900
800
700
600
500
400
300
200
FREQUENCY – kHz
M
GMSK MASK
GMSK SPECTRUM
Figure 8. Typical Spectrum Plot of the Transmit Channel
When Transmitting Random Data (0 MHz to 1 MHz)
1.27
1.21
1.22
1.24
1.23
1.26
1.25
I
2
2
Figure 10. Typical Plot of the Composite Vector Magnitude
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