S3042 AMCC (Applied Micro Circuits Corp), S3042 Datasheet - Page 3

• Manufacturer Part Number: S3042
• Description: Sonet/sdh/atm OC-48 1:8 Receiver
• Manufacturer: AMCC (Applied Micro Circuits Corp)

August 10, 1999 / Revision E
Figure 4. S3043 Functional Block Diagram
S3043 OVERVIEW
The S3043 transmitter implements SONET/SDH se-
rialization and transmission functions. The block dia-
gram 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
interface. The chip includes parallel-to-serial conver-
sion and system timing. The system timing circuitry
consists of a high-speed phase detector, clock divid-
ers, and clock distribution throughout the front end.
SONET/SDH/ATM OC-48 16:1 TRANSMITTER
REFCLKP/N
LLCLKP/N
PICLKP/N
PIN[15:0]
TESTEN
LLDP/N
CAP1/2
READ
DLEB
RSTB
LLEB
16
2
PHASE DETECTOR
16:1 PARALLEL
TO SERIAL
DIVIDER and
CLOCK
TIMING
GEN
The sequence of operations is as follows:
Transmitter Operations:
Internal clocking and control functions are transpar-
ent to the user. Details of data timing can be seen in
Figures 7, 16 and 17.
Suggested Interface Devices
AMCC
AMCC
1. 16-bit parallel input
2. Parallel-to-serial conversion
3. Serial output
S3040
S3044
M
M
U
U
X
X
OC-48 Clock Recovery Device
OC-48 Receiver
D
LOCKDET
155MCK
LSDP/N
TSDP/N
LSCLKP/N
TSCLKP/N
PCLKP/N
PULSE
S3043
3