PRC207 CALMIRCO | Alldatasheet
Document overview
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Technical content
Features
- Filters at source of emissions Stable resistor-capacitor network Ideal for high-speed logic Low lead inductance Reduces board space compared to discretes 3-Pin SOT -23 package Product Description High speed microprocessors like Intel’s Pentium®, DEC’s Alpha, Motorola’s 68K and PowerPC, Sun’s SPARC, MIPs, and other RISC-based systems require well- controlled 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.
Applications
Clock termination Point of contact filtering Low pass filtering EMI/RFI filtering C1720101 These networks are fabricated on a silicon substrate using advanced thin film technology. They have low parasitic inductance compared to discrete and conven- tional thick film filters and provide effective AC termina- tion and EMI/RFI noise suppression over a wide range of frequencies. Why thin film RC networks? The PRC207 is an inte- grated 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. R PRC207 C SCHEMATI C CONFI GURATION
©2001 California Micro Devices Corp. All rights reserved. 2/14/2001 215 Topaz Street, Milpitas, California 95035 /G20 Tel: (408) 263-3214 Fax: (408) 263-7846 www.calmicro.com PRC207CALIFORNIA MICRO DEVICES * with 0 source impedance 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. PRC207 XXX Part Series Resistance Code First 2 digits are significant value Third digit represents number of zeros to follow e.g., code for 56 Ω is 560 Resistor Tolerance J = ±5% K = ±10% M = ±20% Capacitance Code First 2 digits are significant value. Third digit represents number of zeros to follow e.g., code for 68pF is 680. Capacitor Tolerance K = ±10% M = ±20% MM/ XXX Part Number Key TYPI CAL VAL UES R(Ω) C(pF) Breakdown fc @ 3db* Voltage MAX 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 STANDARD SPECIFI CATIONS Resistance Range1 5 to 100Ω Capacitance Ran ge 10 to 100p F Absolute Tolerance (R) ±10% Absolute Tolerance (C) ±20% Operating Temperature Range –55°C to 125 °C Power Rating/Resistor 100mW Storage Temperature –60°C to 150 °C Package Power Rating 1W, MAX