isppac81 Lattice Semiconductor Corp., isppac81 Datasheet - Page 3

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

Lattice Semiconductor
AC Electrical Characteristics
Dynamic Performance (4)
Filter Characteristics (4)
Elliptic Filter Response (5)
Power Supplies
Temperature Range
Notes: (1) A wider input range of 0.7V to 4.3V is typical, but not guaranteed. Inputs larger than this will be clipped. Input signals are also subject
to common-mode voltage limitations. Refer to the table of conditions in this data sheet. (2) Refer to theory of operation section later in this data
sheet for explanation of differential voltage swing computation. (3) To insure full spec performance an additional auto-calibration should be per-
formed after initial turn-on and the device reaches thermal stability. (4) Although many hundreds of thousands of filter configurations are avail-
able using ispPAC81, not every type will have corner frequencies available from exactly 10kHz to 75kHz, depending on the tables available
from within PAC-Designer filter design tools. The general specifications given under this heading are realized using the Elliptic filter types. For
more information on other types and/or frequencies not contained in the filter database, please contact Lattice Marketing. (5) A Cauer elliptic fil-
ter of type CC051042 (see data sheet text) is used to guarantee these specific filter accuracy specifications. It is assumed that all other config-
urations available in PAC-Designer will exhibit equivalent performance according to the applicability of the individual filter type. Necessary
limitations will apply, however, when specifications do not directly apply. See the data sheet text, application notes and guides in PAC-Designer
for specific filter type considerations.
Symbol
∆ F
∆F
CMR
SNR
THD
∆ F
|F
P
V
C
C
I
S
C
S
D
/ ∆ T Corner Frequency Delta vs. Temperature
/ ∆V Corner Frequency Delta vs. Supply Voltage
C
|
Signal to Noise (G=1 to 10)
Total Harmonic Distortion (Differential)
Single-Ended (F
Common Mode Rejection (V
Note: V
Absolute Corner Frequency Accuracy
Max Delta Between Filters (Computed)
Passband Ripple
Passband Ripple
Operating Supply Voltage
Supply Current
Power Dissipation
Operation
Storage
IN+
and V
Parameter
P
IN-
= 50kHz)
connected together
IN
= 1V to 4V)
Deviation from calculated -3db point
Butterworth, 10kHz to 60kHz
0.1Hz to 75kHz, F
F
F
3
IN
IN
F
10kHz, F
C
= 10kHz, V
= 10kHz, V
= 10kHz or 50kHz
F
F
F
F
Condition
V
V
C
C
C
C
S
S
= 10kHz
= 10kHz
= 10kHz
= 50kHz
= 5.0V
= 5.0V
C
= 50kHz
IN
IN
C
= 6V
= 6V
= 50kHz
P-P
P-P
Min.
4.75
ispPAC81 Data Sheet
-40
-65
48
Typ.
26.5
0.03
0.09
133
-80
-80
1.4
1.5
0.8
0.6
86
60
5
Max.
5.25
165
150
-72
-72
3.6
33
85
Units
%/ ° C
%/ °V
mW
mA
dB
dB
dB
dB
dB
dB
° C
°C
%
%
V