DC338B is a demonstration circuit board for LTC1563-2 and LTC1563-3 fourth order active RC filter ICs
The DC338B demonstration board is designed for the evaluation of filter circuits using the LTC1563-2 and LTC1563-3 fourth-order active RC filter ICs. The board includes two configurations: DC338B-A, configured as a single 4th order 25.6kHz Butterworth lowpass filter, and DC338B-B, configured as a single 4th order 25.6kHz Bessel lowpass filter. Both configurations utilize the LTC1563-X ICs which feature precision ±1.5% capacitors and equal value resistors to implement specific filter responses.
| Total Supply Voltage | 2.7V to 11V |
|---|---|
| Supply Current (LP Mode) | 1mA to 1.8mA |
| Supply Current (HS Mode) | 15mA to 23mA |
| Lowpass Cutoff Frequency Range (LP Mode) | 0.256kHz to 25.6kHz |
| Lowpass Cutoff Frequency Range (HS Mode) | 0.256kHz to 256kHz |
| Bandpass Center Frequency Range (LP Mode) | 0.4kHz to 10kHz |
| Bandpass Center Frequency Range (HS Mode) | 0.4kHz to 50kHz |
| DC Voltage Offset (LP Mode) | 6±mV |
| DC Voltage Offset (HS Mode) | 3±mV |
DC338B-A is configured as a single 4th order 25.6kHz Butterworth lowpass filter, and DC338B-B is configured as a single 4th order 25.6kHz Bessel lowpass filter.
Yes, by removing the default passive components, the board can be configured for various lowpass or bandpass filter circuits.
The maximum lowpass cutoff frequency is 25.6kHz for low power mode.