參數(shù)資料
型號: EVAL-ADF4158EB1Z
廠商: Analog Devices Inc
文件頁數(shù): 36/36頁
文件大?。?/td> 0K
描述: BOARD EVALUATION FOR ADF4158
標準包裝: 1
主要目的: 計時,頻率合成器
嵌入式:
已用 IC / 零件: ADF4158
主要屬性: 單路分數(shù)-N PLL
已供物品:
Data Sheet
ADF4158
Rev. G | Page 9 of 36
TYPICAL PERFORMANCE CHARACTERISTICS
–160
–140
–120
–100
–80
–60
–40
1k
10k
100k
1M
10M
PH
A
SE
N
O
ISE
(d
B
c
/H
z)
FREQUENCY OFFSET (Hz)
08728-
035
Figure 6. Phase Noise at 5805 MHz, PFD = 32 MHz, Loop Bandwidth = 100 kHz
5.78
5.79
5.80
5.81
5.82
5.83
5.84
5.85
5.86
–0.025
–0.015
–0.005
0.005
0.015
0.025
F
RE
Q
UE
NC
Y
(G
H
z)
TIME (s)
08728-
036
Figure 7. Triangular Waveform, PFD = 32 MHz, INT = 181, FRAC = 0,
DEV Offset = 4, DEV Word = 20972, Step Word = 200, CLK2 Divider = 10,
CLK1 Divider = 125
5.75
5.77
5.79
5.81
5.83
5.85
5.87
–0.010
–0.005
0
0.005
0.010
F
RE
Q
UE
NC
Y
(G
H
z)
TIME (s)
08728-
037
Figure 8. Sawtooth Waveform, PFD = 32 MHz, INT = 181, FRAC = 0,
DEV Offset = 4, DEV Word = 20972, Step Word = 200, CLK2 Divider = 10,
CLK1 Divider = 125
5.76
5.77
5.78
5.79
5.80
5.81
5.82
5.83
5.84
5.85
5.86
5.87
F
RE
Q
UE
NC
Y
(G
H
z)
TIME (s)
–0.010
–0.005
0
0.005
0.010
08728-
039
Figure 9. Delay Between Ramps for Sawtooth Waveform, PFD = 32 MHz,
INT = 181, FRAC = 0, DEV Offset = 4, DEV Word = 20972, Step Word = 200,
CLK2 Divider = 10, CLK1 Divider = 125, DEL Start Word = 1025
5.76
5.77
5.78
5.79
5.80
5.81
5.82
5.83
5.84
5.85
5.86
0
0.005
0.010
TIME (s)
F
RE
Q
UE
NC
Y
(G
H
z)
0.015
0.020
NO DELAY
DELAY
08728-
040
Figure 10. Delayed Start of Triangular Burst, PFD = 32 MHz, INT = 181,
FRAC = 0, DEV Offset = 4, DEV Word = 20972, Step Word = 200,
CLK2 Divider = 10, CLK1 Divider = 125, DEL Start Word = 1000
5.790
5.792
5.794
5.796
5.798
5.800
5.802
5.804
5.806
5.808
5.810
–0.010
0.010
–0.005
0.005
0
F
RE
Q
UE
NC
Y
(G
H
z)
TIME (s)
08728-
041
Figure 11. Dual Ramp Rate Waveform, PFD = 32 MHz, INT = 181, FRAC = 0,
Ramp 1: DEV Offset = 3, DEV Word = 16777, Step Word = 100,
Ramp 2: DEV Offset = 3, DEV Word = 20792, Step Word = 80
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