Datenblatt-Suchmaschine für elektronische Bauteile |
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TSB21LV03CHV Datenblatt(PDF) 1 Page - Texas Instruments |
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TSB21LV03CHV Datenblatt(HTML) 1 Page - Texas Instruments |
1 / 29 page TSB21LV03C IEEE 1394-1995 TRIPLE-CABLE TRANSCEIVER/ARBITER SLLS331A – FEBRUARY 1999 – REVISED OCTOBER 1999 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Fully Supports Provisions of IEEE 1394-1995 Standard for High Performance Serial Bus D Fully Interoperable with FireWire™ and i.LINK ™ Implementation of IEEE 1394-1995 D Provides Three Fully Compliant Cable Ports at 100/200 Megabits per Second (Mbits/s) D Cable Ports Monitor Line Conditions for Active Connection to Remote Node D Device Power-Down Feature to Conserve Energy in Battery-Powered Applications D Inactive Ports Disabled to Save Power D Logic Performs System Initialization and Arbitration Functions D Encode and Decode Functions Included for Data-Strobe Bit-Level Encoding D Incoming Data Resynchronized to Local Clock D Single 3.3-V Supply Operation D Interface to Link-Layer Controller Supports Low Cost TI ™ Bus-Holder Isolation D Data Interface to Link-Layer Controller Provided Through 2/4 Parallel Lines at 49.152 MHz D Low Cost 24.576-MHz Crystal Oscillator and PLL Provide Transmit/Receive Data at 100/200 Mbits/s, and Link-Layer Controller Clock at 49.152 MHz D Interoperable with 1394 Link-Layer Controllers Using 5-V Supplies D Interoperable Across 1394 Cable with 1394 Physical Layers (Phy) Using 5-V Supplies D Node Power-Class Information Signaling for System Power Management D Cable Power Presence Monitoring D Separate Cable Bias and Driver Termination Voltage Supply for Each Port D High Performance 64-Pin TQFP (PM) Package and 68-Pin CFP (HV) Package description The TSB21LV03C provides the analog and digital physical layer functions needed to implement a three-port node in a cable-based IEEE 1394-1995 network. Each cable port incorporates two differential line transceivers. The transceivers include circuitry to monitor the line conditions as needed for determining connection status, for initialization and arbitration, and for packet reception and transmission. The TSB21LV03C is designed to interface with a link-layer controller (LLC), such as the TSB12LV21, TSB12LV31, TSB12C01, TSB12LV22, TSB12LV41, or TSB12LV01. The TSB21LV03C requires either an external 24.576-MHz crystal or crystal oscillator. The internal oscillator drives an internal phase-locked loop (PLL), which generates the required 196.608-MHz reference signal. The 196.608-MHz reference signal is internally divided to provide the 49.152/98.304-MHz clock signals that control transmission of the outbound encoded strobe and data information. The 49.152-MHz clock signal is also supplied to the associated LLC for synchronization of the two chips and is used for resynchronization of the received data. For the TSB21LV03C, the 49.152 MHz clock output is active when RESET is asserted low. The power-down function, when enabled by taking the PD terminal high, stops operation of the PLL and disables all circuitry except the cable-not-active signal circuitry. The TSB21LV03C supports an optional isolation barrier between itself and its LLC. When ISO is tied high, the link interface outputs behave normally. Also, when ISO is tied high, the internal bus hold function is enabled for use with the TI Bus Holder isolation. TI bus holder isolation is implemented when ISO is tied high. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 1999, Texas Instruments Incorporated FireWire is a trademark of Apple Computer, Incorporated. i.LINK is a trademark of SONY. TI is a trademark of Texas Instruments Incorporated. On products compliant to MIL-PRF-38535, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters. |
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