SSM2044

The SSM2044 is a low cost 4-pole voltage controlled filter whose design has been optimized for use as an electronic music lowpass filter.On-chip voltage control of resonance allows direct and easy interfacing with programmers and controllers.

Features of the SSM2044 are:(1)low cost;(2)high control rejection(36db typical for 1000 to 1 sweep);(3)±18V to ±5V supplies;(4)minimum external parts count;(5)stable resonance over frequency sweep;(6)no op amp required between output and VCA;(7):90 db dynamic range;(8)10000 to 1 minimum sweep range;(9)on-chip resonance control;(10)differential signal inputs.

The absolute maximum ratings of the SSM2044 can be summarized as:(1):the parameter is positive supply range,the Min is +5,the Typ is +15,the Max is +18,the unit is V;(2):the parameter is negative supply range,the Min is -5,the Typ is -15,the Max is -18,the unit is V;(3):the parameter is positive supply current,the Min is 1.0,the Typ is 1.4,the Max is 2.0,the unit is mA;(4):the parameter is negative supply current,the Min is 4.5,the Typ is 6.2,the Max is 8.0,the unit is mA;(5):the parameter is frequency control range,the Min is 10000:1,the Typ is 50000:1;(6):the parameter is frequency control feedthrough,the Typ is -36db,the Max is -26db;(7):the parameter is output offset IO/IOMax,the Typ is 0.05,the Max is 0.2;(8):the parameter is frequency control offset f/fnom,the Min is 0.6,the Typ is 1,the Max is 1.5;(9):the parameter is Q control input impedance,the Min is 675,the Typ is 900,the Max is 1200,the unit is ;(10):the parameter is Q current at oscillation,the Min is 450,the Typ is 500,the Max is 550,the unit is A;(11):the parameter is Q control feedthrough,the Typ is -30,the Max is -20,the unit is db;(12):the parameter is Q control threshold voltage,the Min is 400,the Typ is 500,the unit is mV;(13):the parameter is Max available control current,the Min is 1.25,the Typ is 1.7,the Max is 2.2,the unit is mA;(14):the parameter is freq. control input range,the Min is -200,the Max is +180,the unit is mV;(15):the parameter is Max output signal current IOMax,the Min is ±300,the Typ is ±400,the Max is ±520,the unit is A;(16):the parameter is signal to noise,the Typ is 70,the unit is db.