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TSB41BA3B-EP データシート(PDF) 2 Page - Texas Instruments |
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TSB41BA3B-EP データシート(HTML) 2 Page - Texas Instruments |
2 / 68 page TSB41BA3BEP IEEE 1394b THREEPORT CABLE TRANSCEIVER/ARBITER SGLS362—MAY 2006 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 description/ordering information The TSB41BA3B-EP provides the digital and analog transceiver functions needed to imple- ment a three-port node in a cable-based IEEE 1394 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 TSB41BA3B-EP interfaces with a link-layer controller (LLC), such as the TSB82AA2, TSB12LV21, TSB12LV26, TSB12LV32, TSB42AA4, TSB42AB4, TSB12LV01B, or TSB12LV01C. It can also be connected via cable port to an integrated 1394 Link + PHY layer such as the TSB43AB2. The TSB41BA3B-EP is powered by a single 3.3-V supply. The core voltage supply is supplied by an internal voltage regulator to the PLLVDD-CORE and DVDD-CORE terminals. To protect the phase-locked loop (PLL) from noise, the PLLVDD-CORE terminals must be separately decoupled from the DVDD-CORE terminals. The PLLVDD-CORE terminals are decoupled with 1- µF and smaller decoupling capacitors and the DVDD-CORE terminals are separately decoupled with 1- µF and smaller decoupling capacitors. The separation between DVDD-CORE and PLLVDD-CORE must be implemented by separate power supply rails or planes. The TSB41BA3B-EP may be powered by dual supplies, a 3.3-V supply for I/O and a core voltage supply. The core voltage supply to the PLLVDD-CORE and DVDD-CORE terminals must meet the requirements in the recommended operating conditions section of this data sheet. The PLLVDD-CORE terminals must be separated from the DVDD-CORE terminals, the PLLVDD-CORE terminals are decoupled with 1- µF and smaller decoupling capacitors, and the DVDD-CORE terminals separately decoupled with 1- µF and smaller decoupling capacitors. The separation between DVDD-CORE and PLLVDD-CORE can be implemented by separate power supply rails, or by a single power supply rail, where the DVDD-CORE and PLLVDD-CORE are separated by a filter network to keep noise from the PLLVDD-CORE supply. The TSB41BA3B-EP requires an external 49.152-MHz crystal to generate a reference clock. The external clock drives an internal phase-locked loop (PLL), which generates the required reference signal. This reference signal provides the clock signals that control transmission of the outbound encoded information. A 49.152-MHz clock signal is supplied by the PHY to the associated LLC for synchronization of the two devices and is used for resynchronization of the received data when operating the PHY-link interface in compliance with the IEEE 1394a-2000 standard. A 98.304-MHz clock signal is supplied by the PHY to the associated LLC for synchronization of the two devices when operating the PHY-link interface in compliance with the IEEE 1394b-2002 standard. The power down (PD) function, when enabled by asserting the PD terminal high, stops operation of the PLL. ORDERING INFORMATION TA PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING −40 °C to 110°C HTQFP − PFP TSB41BA3BTPFPEP TSB41B3BTEP † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. D Supports Connection to CAT5 Cable Transceiver by Allowing Ports to be Forced to Beta-Only S100 Mbps D Supports Connection to S200 Plastic Optical Fiber Transceivers by Allowing Ports to be Forced to 1394b Beta-Only S200 Mbps and Beta-Only S100 Mbps D Optical Signal Detect Input for All Ports in Beta Mode Enables Connection to Optical Transceivers D Supports Use of 1394a Connectors by Allowing Ports 1 and 2 to Be Forced to 1394a-Only Mode |
同様の部品番号 - TSB41BA3B-EP |
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同様の説明 - TSB41BA3B-EP |
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