Version 4
SymbolType CELL
RECTANGLE Normal -176 -320 176 640
TEXT 160 192 Right 2 (CLK)
TEXT 0 -64 Center 2 LT
TEXT -160 64 Left 2 NC
TEXT -160 256 Left 2 NC
TEXT 160 128 Right 2 NC
TEXT 160 256 Right 2 NC
WINDOW 0 0 -128 Center 2
WINDOW 3 1 -256 Center 2
WINDOW 38 0 16 Center 2
SYMATTR Value Fclk=500K
SYMATTR SpiceModel LTC1068-50
SYMATTR Prefix X
SYMATTR Description Clock-Tunable, Quad Second Order, Filter Building Blocks\n\nNote: This model is an active RC approximation of a switched capacitor filter.  A more accurate LTspice simulation requires use of FilterCAD's LTC1064 100:1 circuit and resistors.
SYMATTR ModelFile LTC4.lib
PIN -176 -256 LEFT 8
PINATTR PinName INV B
PINATTR SpiceOrder 1
PIN -176 -192 LEFT 8
PINATTR PinName HPB/NB
PINATTR SpiceOrder 2
PIN -176 -128 LEFT 8
PINATTR PinName BPB
PINATTR SpiceOrder 3
PIN -176 -64 LEFT 8
PINATTR PinName LPB
PINATTR SpiceOrder 4
PIN -176 0 LEFT 8
PINATTR PinName SB
PINATTR SpiceOrder 5
PIN -176 128 LEFT 8
PINATTR PinName AGND
PINATTR SpiceOrder 6
PIN -176 192 LEFT 8
PINATTR PinName V+
PINATTR SpiceOrder 7
PIN -176 320 LEFT 8
PINATTR PinName SA
PINATTR SpiceOrder 8
PIN -176 384 LEFT 8
PINATTR PinName LPA
PINATTR SpiceOrder 9
PIN -176 448 LEFT 8
PINATTR PinName BPA
PINATTR SpiceOrder 10
PIN -176 512 LEFT 8
PINATTR PinName HPA/NA
PINATTR SpiceOrder 11
PIN -176 576 LEFT 8
PINATTR PinName INV A
PINATTR SpiceOrder 12
PIN 176 576 RIGHT 8
PINATTR PinName INV D
PINATTR SpiceOrder 13
PIN 176 512 RIGHT 8
PINATTR PinName HPD/ND
PINATTR SpiceOrder 14
PIN 176 448 RIGHT 8
PINATTR PinName BPD
PINATTR SpiceOrder 15
PIN 176 384 RIGHT 8
PINATTR PinName LPD
PINATTR SpiceOrder 16
PIN 176 320 RIGHT 8
PINATTR PinName SD
PINATTR SpiceOrder 17
PIN 176 64 RIGHT 8
PINATTR PinName V-
PINATTR SpiceOrder 18
PIN 176 0 RIGHT 8
PINATTR PinName SC
PINATTR SpiceOrder 19
PIN 176 -64 RIGHT 8
PINATTR PinName LPC
PINATTR SpiceOrder 20
PIN 176 -128 RIGHT 8
PINATTR PinName BPC
PINATTR SpiceOrder 21
PIN 176 -192 RIGHT 8
PINATTR PinName HPC/NC
PINATTR SpiceOrder 22
PIN 176 -256 RIGHT 8
PINATTR PinName INV C
PINATTR SpiceOrder 23
