高频波形发生器
MAX038
__________________________________________Typical工作特性
图1 (电路,V + = DV + = 5V ,V = -5V ,V
DADJ
= V
FADJ
= V
PDI
= V
PDO
= 0V ,R
L
= 1kΩ的,C
L
= 20pF的,T
A
= + 25 ° C,除非
另有说明)。
输出频率
与电流IIN
MAX038-08
归一化输出频率
与FADJ电压
1.8
33pF
F
OUT
归
100pF
330pF
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
-3
-2
-1
0
V
FADJ
(V)
1
2
3
I
IN
= 100μA , COSC = 1000pF的
MAX038-09
100M
2.0
10M
1M
输出频率(Hz)
3.3nF
100k
33nF
10k
100nF
1k
1µF
3.3µF
100
10µF
47µF
100µF
占空比( % )
占空比与DADJ电压
90
80
70
60
50
40
30
20
10
0
-3
-2
-1
0
DADJ ( V)
1
2
3
I
IN
= 200µA
MAX038-16B
100
10
1
0.1
1
10
100
1000
IIN电流( μA )
归一化输出频率
与DADJ电压
MAX038-17
占空比LINEARITY
与DADJ电压
占空比线性误差( % )
1.5
1.0
0.5
0
-0.5
-1.0
-1.5
-2.0
-2.5
-2.0
I
IN
= 50µA
I
IN
= 25µA
I
IN
= 10µA
-1.0
0
1.0
1.5
2.5
DADJ ( V)
I
IN
= 100µA
I
IN
= 250µA
I
IN
= 500µA
MAX038-18
1.10
归一化输出频率
I
IN
= 10µA
1.05
I
IN
= 25µA
I
IN
= 50µA
1.00
2.0
0.95
I
IN
= 100µA
I
IN
= 250µA
0.90
I
IN
= 500µA
0.85
DADJ ( V)
4
_______________________________________________________________________________________