PRC207 CALIFORNIA MICRO DEVICES Clock Terminator and Local EMI/RFI Filter Features Applications * Filters at source of emissions * Clock termination * Stable resistor-capacitor network * Point of contact filtering * Ideal for high-speed logic * Low pass filtering * Low lead inductance * EMI/RFI filtering * Reduces board space compared to discretes * 3-Pin SOT-23 package Product Description High speed microprocessors like Intel's Pentium(R), DEC's Alpha, Motorola's 68K and PowerPC, Sun's SPARC, MIPs, and other RISC-based systems require wellcontrolled and precise clock signals to maintain a high performance synchronous system. However, very fast edge rated clock signals exhibit transmission line effects on the clock lines resulting in undershoot and overshoot disturbances. CAMD's PRC207 SOT resistor-capacitor integrated thin film networks are specifically designed to eliminate transmission line effects on high speed clock and data lines. They are effective in suppressing EMI/RFI noise at I/O ports and can also be used as "distributed" AC terminators when filtered lines are dispersed across the board. These networks are fabricated on a silicon substrate using advanced thin film technology. They have low parasitic inductance compared to discrete and conventional thick film filters and provide effective AC termination and EMI/RFI noise suppression over a wide range of frequencies. Why thin film RC networks? The PRC207 is an integrated RC network fabricated on a silicon substrate using advanced thin film technology. This technology insures a fixed time constant and does not create additional skew on the clock lines. It offers very low parasitic inductance compared to conventional discrete thick film-based approaches and provides effective termination at high frequencies. SCHEMATIC CONFIGURATION PRC207 2 C R 1 3 C1720101 (c) 2001 California Micro Devices Corp. All rights reserved. 215 Topaz Street, Milpitas, California 95035 2/14/2001 Tel: (408) 263-3214 Fax: (408) 263-7846 www.calmicro.com 1 PRC207 CALIFORNIA MICRO DEVICES California Micro Devices can develop a fully customized solution which embodies the configuration shown in this data sheet or modified to suit specific application requirements. A Non-Recurring Engineering (NRE) charge will apply for all fully customized requirements and a minimum order/lot will be required. Please direct your detailed circuit configuration and specification requirements to your local CAMD representative or to the factory for a quotation. STANDARD SPECIFICATIONS Resistance Range 15 to 100 Capacitance Range 10 to 100pF Absolute Tolerance (R) 10% Absolute Tolerance (C) 20% Operating Temperature Range -55C to 125C Power Rating/Resistor 100mW Storage Temperature -60C to 150C Package Power Rating 1W, MAX TYPICAL VALUES R() C(pF) Breakdown Voltage MAX fc @ 3db* 33 47 30V 103MHz 47 47 30V 72MHz 47 33 30V 103MHz 50 68 30V 47MHz 75 50 30V 42MHz 100 100 10V 16MHz 50 180 10V 18MHz 40 50 30V 80MHz * with 0 source impedance Part Number Key PRC207 XXX M / XXX M Part Series Capacitor Tolerance K = 10% M = 20% Resistance Code * First 2 digits are significant value * Third digit represents number of zeros to follow e.g., code for 56 is 560 Capacitance Code * First 2 digits are significant value. * Third digit represents number of zeros to follow e.g., code for 68pF is 680. Resistor Tolerance J = 5% K = 10% M = 20% (c)2001 California Micro Devices Corp. All rights reserved. 2 215 Topaz Street, Milpitas, California 95035 Tel: (408) 263-3214 Fax: (408) 263-7846 www.calmicro.com 2/14/2001