Linear Technology LTC1068CN#PBF Filter Type: Universal Switched Capacitor Frequency - Cutoff Or Center: 50kHz Max-order: 8th Mounting Type: Through Hole Number Of Filters: 4 Package / Case: 24-DIP (0.300", 7.62mm) Series: * Voltage - Supply: 3.14 V ~ 11 V, ?±3.14 V ~ 5.5 V