GENERAL DESCRIPTION

The ML2111 consists of two independent switched capacitor filters that operate at up to 150kHz and perform second order filter functions such as lowpass, bandpass, highpass, notch and allpass. All filter configurations, including Butterworth, Bessel, Cauer, and Chebyshev can be formed.

The center frequency of these filters is tuned by an external clock or the external clock and resistor ratio.

FEATURES

■ Specified for operation up to 150kHz

■ Center frequency x Q product £ 5MHz

■ Separate highpass, notch, allpass, bandpass, and lowpass outputs

■ Center frequency accuracy of ±0.4 or ±0.8 max.

■ Q accuracy of ±4 or ±8 max.

■ Clock inputs are TTL or CMOS compatible

■ Single 5V (±2.25V) or ±5V supply operation