isppac81 Lattice Semiconductor Corp., isppac81 Datasheet - Page 13

• Manufacturer Part Number: isppac81
• Description: In-system Programmable Analog Circuit
• Manufacturer: Lattice Semiconductor Corp.

Lattice Semiconductor
The simulator is capable of displaying up to four separate input to output responses. This allows multiple signals to
be viewed as well as intermediate results of component changes so performance comparisons can be made.
There is also a user-positioned crosshair cursor that intersects the curves on the plot, and reads out the gain and
frequency in the lower right hand corner of the plot window when activated.
Figure 2. Initial PAC-Designer Schematic Design Entry Screen
Figure 3. PAC-Designer Simulation Plot Screen
Ready
-100
-120
38.1
-100
-150
-200
-250
-300
-20
-40
-60
-80
-50
Ready
0
0
0
0
File
PAC Designer - [ispPAC81.PAC: Schematic]
File
PAC Designer - [ispPAC81.PAC: Plot]
10
10
Edit
Edit
Cfg A
Cfg B
View
View
IN
42.553 pF
3.306 pF
C1
Tools
Tools
100
100
CfgA
Type = Elliptical
Fc = 17.96kHz
Fs = 26.35kHz
PB Ripple = -1.26dB
SB Atten = -54.78dB
Filter ID = 1088
IA
Options
3.623 pF
0.000 pF
Options
2
C2
1K
1K
Window
Window
16.732 pF
8.548 pF
L2
UES Bits = 000000000000000000000
Low-pass Filter
Wakeup = Cfg A
ispPAC81
Help
Help
5th order
PACell
61.759 pF
10.595 pF
C3
13
10K
10K
CfgB
Type = Butterworth
Fc = 60.02kHz
Fs =
PB Ripple =
SB Atten =
Filter ID = 282
9.974 pF
0.000 pF
C4
100K
100K
13.564 pF
8.663 pF
OA
L4
21.941 pF
1.655 pF
OUT
C5
1M
1M
ispPAC81 Data Sheet
Phase Plot
10M
10M
Gain Plot