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UCC5630 Datasheet(PDF) 4 Page - Texas Instruments |
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UCC5630 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 5 page 4 UCC5630 UNITRODE CORPORATION 7 CONTINENTAL BLVD. • MERRIMACK, NH 03054 TEL. (603) 424-2410 • FAX (603) 424-3460 REG TERMPWR DISCNCT TERMPWR DIFFB REG DIFF B TERMPWR TERMPWR 4.7 µF . 4.7 µF . 0.1 µF . 4.7 µF 0.1 µF . 36 17 20 1 21 20k 20 21 1 CONTROL LINES 36 DISCNCT 17 CONTROL LINES DIFFSENSE DIFFSENSE REG TERMPWR DISCNCT DIFF B 4.7 µF . 36 17 1 21 DATA LINES (9) 20k REG TERMPWR DIFFB 4.7 µF . 36 19 1 21 DATA LINES (9) TERMPWR REG DIFFB 4.7 µF 21 1 DATA LINES (9) 36 DISCNCT 17 TERMPWR REG DIFFB 4.7 µF 21 1 DATA LINES (9) 36 DISCNCT 17 4.7 µF . MSTR/SLV 19 19 MSTR/SLV 19 MSTR/SLV 19 MSTR/SLV MSTR/SLV 19 DISCNCT 17 MSTR/SLV APPLICATION INFORMATION UDG-96211 Balancing capacitor is very important in high speed op- eration. The typical balance between the positive (+) and negative (–) signals is 0.1pF except for L8 and L9, 0.23pF and 0.4pF respecitvely on the MWP package. The negative (–) signal has higher capacitance than the positive (+) signal. The FQP package is typically 0.2pF less than the MWP. Typical balance is 0.1pF except for L8 and L3, where it is 0.4pF. The master is selected by placing TRMPWR on MSTR/SLV and the terminator enabled by grounding DISCNCT, enabling the 1.3V regulator. The master is the only terminator connected directly to DIFSENS bus line, all the other terminators receive the mode signal by con- necting the DIFFB pins together. Note: The Master/Slave function will not be on future termina- tors. MSTR/SLV: Mode select for the non-controlling termina- tor. MSTR enables the 1.3V regulator, when the termina- tor is enabled. Note: Theis function will be removed on further generations of the multimode terminators. REG: Regulator bypass, must be connected to a 4.7 µF capacitor. SE: TTL compatible status bit indicating single ended de- vice has been detected on DIFFB. The terminator is in single ended mode. TRMPWR: VIN 2.7V to 5.25V supply. PIN DESCRIPTIONS (cont.) |
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