CXD1948R Datasheet, PDF (1/78 Pages) Sony Corporation – IEEE1394 Link Layer LSI for DVB and DSS

CXD1948R
IEEE1394 Link Layer LSI for DVB and DSS
For the availability of this product, please contact the sales office.
Description
The CXD1948R is a Link Layer LSI conforming to
100 pin LQFP (Plastic)
the IEEE1394 serial bus standard. During transmission,
the MPEG2 transport stream is time stamped,
transformed to IEEE1394 format and sent to the
IEEE1394 Phy IC.
During reception, the signal from IEEE1394 is kept
in the built-in FIFO, synchronized to the time stamp
value and output.
This IC utilizes Apple Computer’s Fire Wire
Absolute Maximum Ratings (Ta = 25°C)
technology.
• Supply voltage VDD
Vss – 0.5 to +4.6
V
Features
• Conforms to IEEE1394 serial bus standard
• Supports DVB and DSS transport streams
• Dedicated ports for asynchronous data/isochronous
data
• Isochronous data inserted from asynchronous data
• Input voltage VI Vss – 0.5 to VDD + 0.5 V
• Output voltage VO Vss – 0.5 to VDD + 0.5 V
• Operating temperature
Topr
–20 to +75
°C
• Storage temperature
Tstg
–55 to +150
°C
port
Recommended Operating Conditions
• Smoothing buffer function
• Supply voltage VDD
3.0 to 3.6
V
• Large capacity FIFO
• Operating temperature
Isochronous transmit/receive FIFO 960 × 32 bits
Topr
–20 to +75
°C
Asynchronous transmit FIFO
30 × 33 bits
Asynchronous receive FIFO
36 × 33 bits
Isochronous Insert Packet Transmit Buffer
47 × 33 bits
• CIP header automatic attachment/detection
Applications
• Digital interface for D-STB
• Digital interface for D-VHS
Structure
Silicon gate CMOS IC
Fire Wire is a registered trademark of Apple Computer Corporation, USA
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
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E96844-PS