®
DEVICE SPECIFICATION
E4/STM-1/OC-3 ATM INTERFACE CIRCUITS
S3015/S3016
S3015/S3016
E4/STM-1/OC-3 ATM INTERFACE CIRCUITS
FEATURES
GENERAL DESCRIPTION
• Complies with ANSI, Bellcore, and ITU-T
specifications
• On-chip high-frequency PLL for clock
generation and clock recovery
• On-chip analog circuitry for transformer driver
and equalization
The S3015 transmitter and S3016 receiver derive high
speed timing signals for SONET/SDH or PDH–based
equipment. These circuits are implemented using
AMCC’s proven Phase Locked Loop (PLL) technology.
Figures 1a and 1b show typical network applications.
The S3015 and S3016 each have an on-chip VCO
whichcanbesynchronizeddirectlytotheincomingdata
stream. The chipset can be used with a 19.44 MHz
referenceclockwhenoperatedintheSONET/SDHOC-
3 mode. In E4 mode the chipset can be operated with a
17.408 MHz reference clock in support of existing
system clocking schemes. On-chip coded-mark-inver-
sion (CMI) encoding and decoding is provided for
139.264 Mbit/s and 155.52 Mbit/s interfaces.
• Supports 139.264 Mbit/s (E4) and 155.52 Mbit/s
(OC-3) transmission rates
• Supports 139.264 Mbit/s and 155.52 Mbit/s
Coded Mark Inversion (CMI) interfaces
• Reference frequencies of 19.44 (OC-3) or
17.408 MHz (E4)
• Interface to both PECL and TTL logic
• Lock detect on clock recovery device
• Low jitter PECL interface
• 1.6W total typ power
• +5V only power supply
• Small 52 PQFP TEP package
• Supports both electrical and optical interfaces
The low jitter PECL interface guarantees compliance
with the bit-error rate requirements of the Bellcore,
ANSI, and ITU-T standards. The S3015/S3016 chipset
is packaged in a .65mm pitch, compact 52-pin PQFP,
offering designers a small package outline.
APPLICATIONS
The S3015 and S3016 provide the major components
on-chip for a coaxial cable interface, including analog
transformer driver circuitry and equalization interface
circuitry.
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ATM over SONET
OC-3/STM-1 or E4-based transmission systems
OC-3/STM-1 or E4 modules
OC-3/STM-1 or E4 test equipment
Section repeaters
Add drop multiplexors
Broadband cross-connects
• Fiber optic terminators
• Fiber optic test equipment
Figure 1a. Electrical Interface
COAX
139/155 Mb/s NRZ
139/155 Mb/s CMI
139/155 Mb/s CMI
S3015
S3016
E4/STM-1/OC-3
OVERHEAD
PROCESSOR
XFMR
XFMR
139/155 Mb/s NRZ
17.408/19.44 Mhz
COAX
OSC
Figure 1b. Optical Interface
155 Mb/s NRZ
E4/STM-1/OC-3
OTX
OVERHEAD
PROCESSOR
155 Mb/s NRZ
155 MHz
155 Mb/s NRZ
ORX
S3015
S3016
OSC
1