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TSB41BA3B 数据表(PDF) 2 Page - Texas Instruments

部件名 TSB41BA3B
功能描述  IEEE 1394b THREE-PORT CABLE TRANSCEIVER/ARBITER
Download  68 Pages
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

TSB41BA3B 数据表(HTML) 2 Page - Texas Instruments

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TSB41BA3B
IEEE 1394b THREE-PORT CABLE TRANSCEIVER/ARBITER
SLLS678 − SEPTEMBER 2005
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description/ordering information
The TSB41BA3B provides the digital and analog transceiver functions needed to implement 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 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 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 can be powered by dual supplies, a 3.3-V supply for I/O and a core voltage supply. The core
voltage supply is supplied to the PLLVDD-CORE and DVDD-CORE terminals to 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 requires an external 49.152-MHz crystal to generate a reference clock. The external clock
drives an internal 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.
Data bits to be transmitted through the cable ports are received from the LLC on 2, 4, or 8 parallel paths
(depending on the requested transmission speed and PHY-link interface mode of operation). They are latched
internally, combined serially, encoded, and transmitted at 98.304, 122.78, 196.608, 245.76, 393.216, or
491.52 Mbps (referred to as S100, S100B, S200, S200B, S400, or S400B speed, respectively) as the outbound
information stream.
ORDERING INFORMATION
TA
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
0
°C to 70°C
HTQFP - PFP
TSB41BA3BPFP
40
°Cto85°C
HTQFP - PFP
TSB41BA3BIPFP
TSB41BA3I
−40
°C to 85°C
MicroStar BGA
™ CSP - GGM
TSB41BA3BIGGM
TSB41BA3I
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
MicroStar BGA is a trademark of Texas Instruments.


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