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| CALIFORNIA MICRO DEVICES PACKBM KEYBOARD/MOUSE FILTER AND ESD PROTECTION CIRCUIT Features Integrated network contains complete filter, solution and ESD protection diodes. Product Description Application EMI/RFI filter and ESD protection for keyboard/mouse port The signals from the keyboard/mouse controller contain high frequency EMI signals that must be reduced before the connector. Likewise, the signals from the keyboard/mouse controller must be protected from any possible external charges such as static electricity. The PACKBM provides filtering and pull-up termination of the keyboard and mouse signals as well as ESD protection. STANDARD SPE CIFICATIONS Absolute Tolerance (4.7K resistors) Absolute Tolerance (470pF capacitors) Operating Temperature Range ESD Protection (Human Body Model) MIL-STD -883, Method 3015 (Note 1,2) In System Protection (Note 2) Package 10% 20% 0C to 70C >4kv* >8KV* 16-pin QSOP SCHEMATIC CONFIGURATION 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 Block Diagram PAC KBM KB-CLK 4 13 KB-DATA Keyboard/ Mouse Controller MS-CLK Keyboard, 3 Mouse, 14 Filter, and Protection 7 Circuit 10 6 11 Keyboard Connector MS-DATA Mouse Connector (c) 2000 California Micro Devices Corp. All rights reserved. 4/00 C0350798 215 Topaz Street, Milpitas, California 95035 Tel: (408) 263-3214 Fax: (408) 263-7846 www.calmicro.com 1 CALIFORNIA MICRO DEVICES STANDARD PART ORDERING INFORMATION Ordering Part Number PACKBM/T PACKBM Pins 16 Package Style QSOP Tubes Tape & Reel PACKBM/R Part Marking PACKBM ESD PROTECTION MIN MAX ESD Protection Peak D ischarge Voltage at any I/O, Human Body Model, Method 3015(Note 1,2) In System Protection, HBM (Note 2) In System Protection, IEC 1000-4-2, Level 2 (Note 2,3) Channel Clamp Voltage @ 8KV ESD Pulses, HBM (Note 1,2) Note 1: Note 2: Note 3: Human Body Model per MIL-STD-883, Method 3015 CDischarge = 100pF, RDischarge = 1.5 KW, pins 1 and 16 @ 5V and pins 2, 5, 8, 9, 12, 15 @ ground. -4KV -8KV -4KV <-30V +4KV +15KV +4KV <+30V Pins 2, 5, 8, 9, 12, 15 grounded, pins 1 and 16 to VCC, all other pins are open. ESD contact discharge between ground and pins 3, 4, 6, 7,10, 11, 13, 14, one at a time. Standard IEC 1000-4-2 with CDischarge = 150pF, RDischarge = 330W, pins 1, 16 @ 5V and pins 2, 5, 8, 9, 12, 15 @ ground. (c)2000 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 4/00 |
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