SSI32F8030

The SSI 32F8030 Programmable Electronic Filter provides an electronically controlled lowpass filter with a separate differentiated lowpass output. A seven pole, 0.05° Equiripple-type linear phase, lowpass filter is provided along with a single-pole, single-zero differentiator. Both outputs have matched delays. The delay matching of SSI 32F8030 is unaffected by any amount of programmed high frequency peaking (boost) or bandwidth. This programability, combined with low group delay variation makes the SSI 32F8030 ideal for use in many applications. Double differentiation high frequency boost is accomplished by a twopole, low pass with a twopole, highpass feed forward section to provide complementary real axis zeros. A variable attenuator is used to program the zero locations, which controls the amount of boost.

The SSI 32F8030 programmable boost and bandwidth characteristics can be controlled by external DACs or DACs provided in the SSI 32D4661 Time Base Generator. Fixed characteristics are easily accomplished with three external resistors. In addition, boost can be witched in or out by a logic signal.

The SSI 32F8030 requires only a +5V supply and is available in 16-Lead SON, and SOL packages.