S3033 AMCC (Applied Micro Circuits Corp), S3033 Datasheet - Page 3

• Manufacturer Part Number: S3033
• Description: Bicmos Lvpecl Clock Generator Sonet/sdh/atm Oc-12 Transmitter And Sonet/sdh/atm Oc-3/oc-12 Transceiver
• Manufacturer: AMCC (Applied Micro Circuits Corp)

April 12, 2000 / Revision D
S3035 OVERVIEW
The S3035 transceiver implements SONET/SDH se-
rialization/deserialization, transmission, and frame
detection/recovery functions. The block diagram in
Figure 4 shows the basic operation of the chip. This
chip can be used to implement the front end of
SONET equipment, which consists primarily of the
serial transmit interface and the serial receive inter-
face. The chip handles all the functions of these two
elements, including parallel-to-serial and serial-to-par-
allel conversion, clock generation and recovery, and
system timing. The system timing circuitry consists
of management of the data stream, framing, and
clock distribution throughout the front end.
The S3035 is divided into a transmitter section and a
receiver section. The sequence of operations is as
follows:
Figure 3. STS–12/OC–12 Frame Format
SONET/SDH/ATM OC-3/12 TRANSCEIVER W/CDR
A1 A1
A1 A1
12 A1
Bytes
Transport Overhead 36 Columns
36 x 9 = 324 bytes
A2 A2
A2 A2
12 A2
Bytes
125 sec
Transmitter Operations:
Receiver Operations:
Internal clocking and control functions are transpar-
ent to the user.
A lock detect feature is provided on the S3035,
which indicates that the PLL is locked (synchronized)
to the incoming data stream, and facilitates continu-
ous down-stream clocking in the absence of data.
Suggested Interface Devices
1. 8-bit parallel input
2. Parallel-to-serial conversion
3. Redundant serial output
1. Redundant serial input select
2. Clock and data recovery from serial input
3. Frame detection
4. Serial-to-parallel conversion
5. 8-bit parallel output
AMCC CONGO (S1201) POS/ATM SONET Mapper
AMCC NILE (S1202) ATM SONET Mapper
Synchronous Payload Envelope 1044 Columns
1044 x 9 = 9396 bytes
S3035
3