ACA2601
All performance data measured using application circuit with input photodiode, as shown in Figure 16.
Figure 8: Gain Flatness To Best Fit Line over Temperature
(VCC = + 5 V, VAGC = +1.6 V)
2
1.5
1
+115C
+100C
+60C
+40C
+15C
-5C
0.5
0
-25C
-0.5
-1
-35C
-1.5
-2
0
100
200
300
400
500
600
700
800
900
1000
Frequency (MHz)
Table 6: Gain Flatness to Best Fit Line
(VAGC = +1.6 V)
The best fit line is calculated
using the least mean squares
method:
Temp (oC)
Tilt (dB)
3.8
4.1
4.7
5.1
5.5
5.8
6
Flatness (dB)
115
100
60
2.3
1.9
0.9
1.2
1.6
1.9
1.9
1.6
y = m⋅ x + b
x⋅
y
40
− ∑ ∑
(
x⋅ y
)
∑
n
15
m =
2
( )
x
-5
∑
x2 −
∑
y
n
-25
-35
6
x
∑
∑
b =
− m⋅
n
n
n = number of points
PRELIMINARY DATA SHEET - Rev 1.4
9
01/2006
ANADIGICS [ ANADIGICS, INC ]
