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
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鈥檚 Fire Wire
technology.
Features
鈥?/div>
Conforms to IEEE1394 serial bus standard
鈥?/div>
Supports DVB and DSS transport streams
鈥?/div>
Dedicated ports for asynchronous data/isochronous
data
鈥?/div>
Isochronous data inserted from asynchronous data
port
鈥?/div>
Smoothing buffer function
鈥?/div>
Large capacity FIFO
Isochronous transmit/receive FIFO 960
脳
32 bits
Asynchronous transmit FIFO
30
脳
33 bits
Asynchronous receive FIFO
36
脳
33 bits
Isochronous Insert Packet Transmit Buffer
47
脳
33 bits
鈥?/div>
CIP header automatic attachment/detection
Applications
鈥?/div>
Digital interface for D-STB
鈥?/div>
Digital interface for D-VHS
Structure
Silicon gate CMOS IC
Absolute Maximum Ratings
(Ta = 25擄C)
Vss 鈥?0.5 to +4.6
鈥?/div>
Supply voltage V
DD
鈥?/div>
Input voltage
V
I
Vss 鈥?0.5 to V
DD
+ 0.5
鈥?/div>
Output voltage V
O
Vss 鈥?0.5 to V
DD
+ 0.5
鈥?/div>
Operating temperature
Topr
鈥?/div>
Storage temperature
Tstg
鈥?0 to +75
鈥?5 to +150
擄C
擄C
100 pin LQFP (Plastic)
V
V
V
Recommended Operating Conditions
鈥?/div>
Supply voltage V
DD
3.0 to 3.6
鈥?/div>
Operating temperature
Topr
鈥?0 to +75
V
擄C
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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