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ISPPAC81-01PI Datasheet(PDF) 3 Page - Lattice Semiconductor |
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ISPPAC81-01PI Datasheet(HTML) 3 Page - Lattice Semiconductor |
3 / 20 page Lattice Semiconductor ispPAC81 Data Sheet 3 AC Electrical Characteristics Symbol Parameter Condition Min. Typ. Max. Units Dynamic Performance (4) SNR Signal to Noise (G=1 to 10) 0.1Hz to 75kHz, FC = 50kHz 86 dB THD Total Harmonic Distortion (Differential) Single-Ended (FP = 50kHz) FIN = 10kHz, VIN = 6VP-P FIN = 10kHz, VIN = 6VP-P -80 -80 -72 -72 dB dB CMR Common Mode Rejection (VIN = 1V to 4V) Note: VIN+ and VIN- connected together 10kHz, FC = 50kHz 48 60 dB Filter Characteristics (4) |FC| Absolute Corner Frequency Accuracy Deviation from calculated -3db point FC = 10kHz or 50kHz 0.8 % ∆FC Max Delta Between Filters (Computed) Butterworth, 10kHz to 60kHz 0.6 3.6 % ∆FC/∆T Corner Frequency Delta vs. Temperature FC = 10kHz 0.03 %/°C ∆FC/∆V Corner Frequency Delta vs. Supply Voltage FC = 10kHz 0.09 %/°V Elliptic Filter Response (5) Passband Ripple Passband Ripple FC = 10kHz FC = 50kHz 1.4 1.5 dB dB Power Supplies VS Operating Supply Voltage 4.75 5 5.25 V IS Supply Current VS = 5.0V 26.5 33 mA PD Power Dissipation VS = 5.0V 133 165 mW Temperature Range Operation -40 85 °C Storage -65 150 °C 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. |
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