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MAX260ACNG

製品説明
仕様・特性

19-0352; Rev 2; 7/02 Microprocessor Programmable Universal Active Filters Features o Filter Design Software Available o Microprocessor Interface o 64-Step Center Frequency Control o 128-Step Q Control o Independent Q and f0 Programming o Guaranteed Clock to f0 Ratio-1% (A grade) o 75kHz f0 Range (MAX262) o Single +5V and ±5V Operation Ordering Information PART TEMP RANGE PACKAGE ACCURACY MAX260ACNG 0°C to +70°C Plastic DIP 1% MAX260BCNG 0°C to +70°C Plastic DIP 2% MAX260AENG -40°C to +85°C Plastic DIP 1% MAX260BENG -40°C to +85°C Plastic DIP 2% MAX260ACWG 0°C to +70°C Wide SO 1% MAX260BCWG 0°C to +70°C Wide SO 2% MAX260AMRG -55°C to +125°C CERDIP 1% µP-Tuned Filters MAX260BMRG -55°C to +125°C CERDIP 2% Anti-Aliasing Filters *All devices—24-pin packages 0.3in-wide packages Digital Signal Processing Ordering Information continued at end of data sheet. Applications Adaptive Filters Pin Configurations Signal Analysis Phase-Locked Loops Functional Diagram TOP VIEW IN +5V V+ LP HP BP IN FILTER B FILTER A 24 LPA BPA 1 24 LPA 23 INB OP OUT 2 23 INB HPA 3 22 LPB HPA 3 22 LPB N.C. 4 LP HP BP BPA 1 N.C. 2 OUTPUT INPUT 21 BPB OP IN 4 MAX260 21 BPB MAX261 MAX262 20 D0 INA 5 D1 6 19 OSC OUT D1 6 19 D0 A3 7 18 GND A3 7 18 OSC OUT INA 5 GND CLK OUT 8 17 V- V+ 9 -5V V- A2 10 MAX260 MAX261 MAX262 15 A0 17 GND V+ 9 16 V15 WR 14 HPB CLKA 11 14 A0 CLKB 12 CLKB A2 10 CLKA 11 OSC CLKOUT CLKA 16 WR CLK OUT 8 20 HPB 13 A1 CLKB 12 13 A1 PROGRAM INPUTS CRYSTAL FOURTH-ORDER BANDPASS FILTER ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. 1 MAX260/MAX261/MAX262 General Description The MAX260/MAX261/MAX262 CMOS dual secondorder universal switched-capacitor active filters allow microprocessor control of precise filter functions. No external components are required for a variety of bandpass, lowpass, highpass, notch, and allpass configurations. Each device contains two second-order filter sections that place center frequency, Q, and filter operating mode under programmed control. An input clock, along with a 6-bit f0 program input, determine the filter's center or corner frequency without affecting other filter parameters. The filter Q is also programmed independently. Separate clock inputs for each filter section operate with either a crystal, RC network, or external clock generator. The MAX260 has offset and DC specifications superior to the MAX261 and MAX262 and a center frequency (f0) range of 7.5kHz. The MAX261 handles center frequencies to 57kHz, while the MAX262 extends the center frequency range to 140kHz by employing lower clock-to-f0 ratios. All devices are available in 24-pin DIP and small outline packages in commercial, extended, and military temperature ranges.

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