LTC1060 Universal Dual Filter Building Block FEATURES DESCRIPTIO Guaranteed Filter Specification for 2.37V and The LTC 1060 consists of two high performance, switched 5V Supply capacitor filters. Each filter, together with 2 to 5 resistors, Operates Up to 30kHz can produce various 2nd order filter functions such as Low Power and 88dB Dynamic Range at 2.5V Supply lowpass, bandpass, highpass notch and allpass. The Center Frequency Q Product Up to 1.6MHz center frequency of these functions can be tuned by an Guaranteed Offset Voltages external clock or by an external clock and resistor ratio. Up Guaranteed Clock-to-Center Frequency Accuracy Over to 4th order full biquadratic functions can be achieved by Temperature: cascading the two filter blocks. Any of the classical filter 0.3% for LTC1060A configurations (like Butterworth, Chebyshev, Bessel, Cauer) 0.8% for LTC1060 can be formed. Guaranteed Q Accuracy Over Temperature The LTC1060 operates with either a single or dual supply Low Temperature Coefficient of Q and Center from 2.37V to 8V. When used with low supply Frequency (i.e. single 5V supply), the filter typically consumes 12mW Low Crosstalk, 70dB and can operate with center frequencies up to 10kHz. With Clock Inputs TTL and CMOS Compatible 5V supply, the frequency range extends to 30kHz and very high Q values can also be obtained. U APPLICATIO S The LTC1060 is manufactured by using Linear Technologys enhanced LTCMOS silicon gate process. Single 5V Supply Medium Frequency Filters Because of this, low offsets, high dynamic range, high Very High Q and High Dynamic Range Bandpass, center frequency Q product and excellent temperature Notch Filters stability are obtained. Tracking Filters Telecom Filters The LTC1060 is pinout compatible with MF10. , LTC and LT are registered trademarks of Linear Technology Corporation. LTCMOS trademark of Linear Technology Corporation. TYPICAL APPLICATIO Single 5V, Gain of 1000 4th Order Bandpass Filter Amplitude Response 3.16k 70 OUTPUT 60 1 20 100k 100k 50 2 19 3.16k 2k 2k V 3 18 IN 40 1mV(RMS) 5V 4 17 30 5 16 1k 0.1F LTC1060 20 6 15 10 7 14 5V 1k 8 13 0 9 12 10 0 100 125 150 175 200 225 250 275 10 11 INPUT FREQUENCY (Hz) LTC1060 TA02 CLOCK IN 17.5kHz LTC1060 TA01 1060fb 1 GAIN (dB) U ULTC1060 UUW ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1) TOP VIEW ORDER PART Supply Voltage ........................................................ 18V 1 LP LP 20 B A NUMBER 2 BP Power Dissipation.............................................. 500mW BP 19 B A LTC1060ACN 3 N/AP/HP N/AP/HP 18 Operating Temperature Range B A LTC1060CN 4 INV 17 INV B LTC1060AC/LTC1060C ................ 40C T 85C A A 5 LTC1060CSW S1A 16 S1B LTC1060AM/LTC1060M ............ 55C T 125C A 6 S 15 AGND A/B Storage Temperature Range ................. 65C to 150C + V 7 14 V A A Lead Temperature (Soldering, 10 sec).................. 300C + V 8 13 V D D LSh 9 12 50/100/HOLD CLKA 10 11 CLKB N PACKAGE SW PACKAGE 20-LEAD PDIP 20-LEAD PLASTIC SO WIDE T = 100C, = 100C/W (N) JMAX JA T = 150C, = 80C/W (SW) JMAX JA J PACKAGE LTC1060ACJ 20-LEAD CERDIP T = 150C, = 70C/W LTC1060MJ JMAX JA LTC1060AMJ OBSOLETE PACKAGE Consider the N20 and SW20 Package for Alternate Source LTC1060CJ Consult LTC Marketing for parts specified with wider operating temperature ranges. ELECTRICAL CHARACTERISTICS The denotes specifications which apply over the full operating temperature range, otherwise specifications are at T = 25C. (Complete Filter) V = 5V, unless otherwise noted. A s PARAMETER CONDITIONS MIN TYP MAX UNITS Center Frequency Range f Q 400kHz, Mode 1, Figure 4 0.1 to 20k Hz 0 (See Applications Information) f Q 1.6MHz, Mode 1, Figure 4 0.1 to 16k Hz 0 Clock-to-Center Frequency Ratio LTC1060A Mode 1, 50:1, f = 250kHz, Q = 10 50 0.3% CLK = 250kHz, Q = 10 50 0.8% LTC1060 Mode 1, 50:1, f CLK LTC1060A Mode 1, 100:1, f = 500kHz, Q = 10 100 0.3% CLK LTC1060 Mode 1, 100:1, f = 500kHz, Q = 10 100 0.8% CLK Q Accuracy = 5kHz, Q=10 0.5 3 % LTC1060A Mode 1, 50:1 or 100:1, f 0 LTC1060 Mode 1, 50:1 or 100:1, f = 5kHz, Q=10 0.5 5 % 0 f Temperature Coefficient Mode 1, f < 500kHz 10 ppm/c 0 CLK Q Temperature Coefficient Mode 1, f < 500kHz, Q = 10 20 ppm/c CLK DC Offset V 215 mV OS1 V f = 250kHz, 50:1, S = High 340 mV OS2 CLK A/B V f = 500kHz, 100:1, S = High 680 mV OS2 CLK A/B f = 250kHz, 50:1, S = Low 230 mV V OS2 CLK A/B V f = 500kHz, 100:1, S = Low 460 mV OS2 CLK A/B V f = 250kHz, 50:1, S = Low 230 mV OS3 CLK A/B V f = 500kHz, 100:1, S = Low 460 mV OS3 CLK A/B DC Lowpass Gain Accuracy Mode 1, R1 = R2 = 50k 0.1 2 % BP Gain Accuracy at f Mode 1, Q = 10, f = 5kHz 0.1 % 0 0 Clock Feedthrough f 1MHz 10 mV CLK (P-P) Max Clock Frequency 1.5 MHz Power Supply Current 3 5 8 mA 12 mA Crosstalk 70 dB 1060fb 2 U WWW