参数资料
型号: AD9549A/PCBZ
厂商: Analog Devices Inc
文件页数: 7/76页
文件大小: 0K
描述: BOARD EVALUATION FOR AD9549A
设计资源: AD9549 Schematics
AD9549 Gerber Files
标准包装: 1
主要目的: 计时,时钟发生器
嵌入式:
已用 IC / 零件: AD9549A
主要属性: 8 kHz ~ 750 MHz 输入
次要属性: 差分输出
已供物品:
AD9549
Rev. D | Page 15 of 76
06744-
012
0
200
400
600
800
FREQUENCY (MHz)
650
600
550
500
450
A
MPL
IT
U
D
E
(m
V)
NOM SKEW 25°C, 1.8V SUPPLY
SLOW SKEW 90°C, 1.7V SUPPLY
Figure 12. HSTL Output Driver Single-Ended Peak-to-Peak Amplitude vs.
Toggle Rate (100 Ω Across Differential Pair)
06744-
013
0
10
20
30
40
FREQUENCY (MHz)
2.5
2.0
1.5
1.0
0.5
0
A
MPL
IT
U
D
E
(V)
NOM SKEW 25°C, 1.8V SUPPLY (20pF)
SLOW SKEW 90°C, 1.7V SUPPLY (20pF)
Figure 13. CMOS Output Driver Peak-to-Peak Amplitude vs. Toggle Rate
(AVDD3 = 1.8 V) with 20 pF Load
06744-
014
0
50
100
150
FREQUENCY (MHz)
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
A
MPL
IT
U
D
E
(V)
NOM SKEW 25°C, 3.3V SUPPLY (20pF)
SLOW SKEW 90°C, 3.0V SUPPLY (20pF)
Figure 14. CMOS Output Driver Peak-to-Peak Amplitude vs. Toggle Rate
(AVDD3 = 3.3 V) with 20 pF Load
06744-
015
0
0.5
1.0
1.5
2.0
2.5
TIME (ns)
0.4
0.6
0.2
0
–0.2
–0.4
–0.6
A
MPL
IT
U
D
E
(V)
FREQUENCY= 600MHz
TRISE (20→80%) = 104ps
TFALL (80→20%) = 107ps
V p-p = 1.17V DIFF.
DUTY CYCLE = 50%
Figure 15. Typical HSTL Output Waveform, Nominal Conditions,
DC-Coupled, Differential Probe Across 100 Ω load
06744-
016
0
20
40
60
80
100
TIME (ns)
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
–0.2
A
MPL
IT
U
D
E
(V)
FREQUENCY= 20MHz
TRISE (20→80%) = 5.5ns
TFALL (80→20%) = 5.9ns
V p-p = 1.8V
DUTY CYCLE = 53%
Figure 16. Typical CMOS Output Driver Waveform (@ 1.8 V),
Nominal Conditions, Estimated Capacitance: 5 pF
06744-
017
0
10
20
30
40
50
TIME (ns)
3.3
2.8
2.3
1.8
1.3
0.8
0.3
–0.2
A
MPL
IT
U
D
E
(V)
FREQUENCY= 40MHz
TRISE (20→80%) = 2.25ns
TFALL (80→20%) = 2.6ns
V p-p = 3.3V
DUTY CYCLE = 52%
Figure 17. CMOS Output Driver Waveform (@ 3.3 V), Nominal Conditions,
Estimated Capacitance: 5 pF, fOUT = 20 MHz
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