SM6500AA-2 RC Network with ESD Protection NIPPON PRECISION CIRCUITS INC. OVERVIEW The SM6500AA-2 is an RC network with built-in ESD protection diode. It is ideal for applications such as IEEE1284 parallel port terminator filters where ESD protection and EMI noise elimination are required. FEATURES ■ ■ ■ ■ IEEE1284 parallel port terminator filter and integrated protection devices EMI noise elimination filter ESD protection: ± 8kV (contact discharge)*1 28-pin QSOP package *1: Typical value PACKAGE DIMENSIONS (Unit: mm) 0.22 ± 0 9.89 ± 0.09 3.90 ± 0.09 +0.2 6.0 −0.21 .03 0.10 0.25 ± 0.05 1.47 ± 0.1 0.635 +0.05 0.2 −0.1 0.355 0 to 8 7±3 0.835 ± 0.435 ORDERING INFORMATION D e vice P ackag e SM6500AA-2 28-pin QSOP NIPPON PRECISION CIRCUITS—1 SM6500AA-2 CIRCUIT DIAGRAM R1 R1 C C R1 R1 C C 1 28 27 2 R2 R1 3 26 C R2 R1 4 25 C R2 R1 5 24 C R2 R1 6 23 C 22 R2 R1 7 21 C R1 8 20 C R1 R2 9 19 C R1 10 C R1 R2 11 18 C R1 12 C R1 R2 13 17 C R2 R1 14 16 C R1 15 C NIPPON PRECISION CIRCUITS—2 SM6500AA-2 PIN DESCRIPTION (Top view) SM6500AA 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 Number Description 1 ESD protection circuit with pull-up resistor. 2 ■ Circuit diagram 8 VCC 10 R1 2.2kΩ 12 15 C 220pF 27 28 Input Output 3 26 4 25 5 24 6 23 7 21 9 19 11 18 13 17 14 16 Terminator filter circuit ■ Circuit diagram VCC Input R1 2.2kΩ R2 33Ω Output C 220pF 20 Supply 22 Ground NIPPON PRECISION CIRCUITS—3 SM6500AA-2 ELECTRICAL CHARACTERISTICS P arameter Condition Rating Unit R1 2.2 kΩ R2 33 Ω ±15 % 500 ± 350 ppm Resistance pow er rating 100 mW Electrostatic capacitance 220 pF Electrostatic capacitance variation ±15 % 1 µA DC resistance Resistance variation Resistance temperature coefficient Diode maximum leakage current 25 °C , max V C C Forward clamp voltage −1µA, 25 °C 7.5 ± 1 V R e verse clamp voltage +1µA, 25 °C 7.0 ± 1 V M a x i m um operating voltage VCC 6 V M a x i m um pow er dissipation 1 W Operating temperature range −20 to 85 °C FILTER INSERTION LOSS (typical characteristics) S21 (Ta = 25°C) 0 0 -10 -10 -20 -20 Gain (dB) Gain (dB) S12 (Ta = 25°C) -30 -30 -40 -40 -50 -50 -60 1.00E+05 1.00E+06 1.00E+07 1.00E+08 1.00E+09 -60 1.00E+05 1.00E+10 1.00E+06 1.00E+07 1.00E+08 1.00E+09 1.00E+10 Frequency (Hz) Frequency (Hz) Measurement Circuit (pin 14 to pin 16) R1 R2 14 16 C H P 8 7 5 3 B N e t work Analyzer HP85046A S-parameter Test Set NIPPON PRECISION CIRCUITS—4 SM6500AA-2 NIPPON PRECISION CIRCUITS INC. reserves the right to make changes to the products described in this data sheet in order to improve the design or performance and to supply the best possible products. Nippon Precision Circuits Inc. assumes no responsibility for the use of any circuits shown in this data sheet, conveys no license under any patent or other rights, and makes no claim that the circuits are free from patent infringement. Applications for any devices shown in this data sheet are for illustration only and Nippon Precision Circuits Inc. makes no claim or warranty that such applications will be suitable for the use specified without further testing or modification. The products described in this data sheet are not intended to use for the apparatus which influence human lives due to the failure or malfunction of the products. Customers are requested to comply with applicable laws and regulations in effect now and hereinafter, including compliance with expor t controls on the distribution or dissemination of the products. Customers shall not expor t, directly or indirectly, any products without first obtaining required licenses and approvals from appropriate government agencies. NIPPON PRECISION CIRCUITS INC. NIPPON PRECISION CIRCUITS INC. 4-3, Fukuzumi 2-chome Koto-ku, Tokyo 135-8430, Japan Telephone: +81-3-3642-6661 Facsimile: +81-3-3642-6698 http://www.npc.co.jp/ Email: sales @ npc.co.jp NC9908AE 2000.10 NIPPON PRECISION CIRCUITS—5