ML2111

May 1997 ML2111* Universal Dual High Frequency Filter 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. The ML2111 frequency range is specified up to 150kHz with ±5.0V ±10% power supplies. Using a single 5.0V ±10% power supply the frequency range is up to 100kHz. These filters are ideal where center frequency accuracy and high Qs are needed. The ML2111 is a pin compatible superior replacement for MF10, LMF100, and LTC1060 filters. FEATURES s s s 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 s s s s * Some Packages Are End Of Life and Obsolete BLOCK DIAGRAM 7 VA+ INVA 4 + 8 VD+ N/AP/HPA 3 + 5 S1A 2 BPA 1 LPA Σ S2A ∫ ∫ AGND 15 CLKA 10 50/100HOLD 12 LEVEL SHIFT 9 CLKB 11 LEVEL SHIFT NON-OVERLAP CLOCK CONTROL LEVEL SHIFT NON-OVERLAP CLOCK SA/B 6 INVB 17 VA14 VD13 + S2B + Σ S1B 16 ∫ BPB 19 ∫ LPB 20 N/AP/HPB 18 1 ML2111 PIN CONFIGURATION ML2111 20-...