BCM93138
PRODUCT
®
Brief
O F
B E N E F I T S
BCM93138 ADVANCED PHY TRANSMITTER/RECEIVER EVALUATION SYSTEM
B C M 9 3 1 3 8
F E AT U R E S
S U M M A R Y
•
The BCM93138 is a dual-channel upstream cable burst
transmitter/receiver evaluation system
Support for advanced TDMA PHY layer functions for
•
DOCSIS/EuroDOCSIS, IEEE802.14, DAVIC and DVB
•
•
•
applications
Programmable modulation formats including BPSK,
and QPSK up to 256 QAM
Frequency-agile from 5 to 65 MHz
Flexible options for evaluating upstream analog front
end (AFE)
• Wideband external A/D with direct sampling
• Narrowband external A/D sampling
• Narrowband internal A/D sampling
enables complete cable upstream
•
The BCM93138layer testing and evaluation with:
advanced PHY
Dramatically reduces time to
•
complete reference design for market by providing a
a DOCSIS/EuroDOCSIS
• BCM3138: DOCSIS/EuroDOCSIS-based advanced TDMA
PHY burst receiver
• BCM3037: DOCSIS/EuroDOCSIS-based QPSK/16 QAM
burst transmitter
• BCM3034: DOCSIS/EuroDOCSIS-based advanced QAM
modulator
•
50 dB dynamic range for transmitter and receiver
Full Reed-Solomon encoder/decoder with
•
programmable 23-bit randomizer/derandomizer
•
Multiple operation modes:
Continuous
•
Easy-to-use Broadband Studio evaluation software
•
• DOCSIS/EuroDOCSIS TDMA
• Random-arrival
•
•
•
•
•
based advanced TDMA PHY cable upstream
implementation.
Implements pre-equalization for improved
performance in heavily impaired cable channels.
Enables digital cable set-top boxes, modems and
telephony implementations.
Provides self-contained subscriber and headend system
with seamless interface between subscriber and
headend components.
Windows software for running test functions and
scripts enable user-based evaluation tools with fast
turn-up.
Windows software API for register, memory and
control access allows visibility to system performance
for design comparisons and tradeoffs.
BCM93138 DOCSIS/EuroDOCSIS Upstream Advanced PHY
Transmitter/Receiver Evaluation System
B C M 9 3 1 3 8
O V E R V I E W
BCM93138DOCSIS/EuroDOCSIS Upstream Advanced TDMA PHY Transmitter/Receiver
Evaluation System Block Diagram
DS Filter
BCM3034
Tuner A
Tuner A
US Rx
AFE
A/D A
A/D B
BCM3138
FPGA
PRN, MAC
and DMPI I/F
US Tx
AFE X
US Tx
AFE A
US Tx
AFE B
BCM3037
BCM3037
SRAM
The
BCM93138
is a complete cable network transceiver system
for frequency-agile, time-division multiple access (TDMA)
systems. It is an ideal platform for evaluating the BCM3138 Dual
Universal Advanced TDMA PHY Burst Receiver and the
BCM3037 Universal Burst Modulator chips from Broadcom.
The
BCM93138
has several modes of operation, including
random burst arrival, continuous mode and TDMA with various
burst types like those defined in the DOCSIS/EuroDOCSIS
standard. Burst data can be generated internally, programmed
into internal memory, or supplied via an external test connector.
A comprehensive software package is included to control and
monitor the performance of the transceiver.
The receiver module operates in a 5–65 MHz range with multiple
options for the analog front end. These include wideband direct
sampling and narrowband sampling (typically using a low-IF
carrier) with either external or chip-internal A/D converters. The
receiver can operate in multiple modes: continuous mode, single
burst type with external Receive_now, single burst type with
random arrival and full DOCSIS/EuroDOCSIS burst types.
The transmitter is the BCM3037 Universal QPSK/16-QAM
Burst
Modulator
capable
of
operating
in
all
DOCSIS/EuroDOCSIS modes with integrated 10-bit DAC and
pre-equalization. The transmitter can operate in both continuous
and burst modes. The BCM3034 Universal headend modulator is
used to emulate advanced TDMA PHY equipped CPE by
creating the upstream advanced TDMA PHY signal for system
evaluation.
The FPGA controller has a 64K x 16-bit RAM for pattern storage
and/or data capture. It also implements basic
DOCSIS/EuroDOCSIS MAC functions, data generation and
verification. Access to the controller is via a printer port or RS-
232 to PC host.
The
BCM93138
represents the industry’s first complete
DOCSIS/EuroDOCSIS-based silicon solution for the cable
upstream channel supporting advanced TDMA PHY features and
is based on Broadcom’s field-proven QAMLink
®
technology. It
comes complete with schematics, gerber file, Bill of Materials
(BOM), data sheet, software source code and application support.
Broadcom
®
, the pulse logo,
QAMLink
®
and
Connecting everything
®
are trademarks of
Broadcom Corporation and/or its subsidiaries in the United States and certain other countries.
All other trademarks are the property of their respective owners.
®
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
© 2002 by BROADCOM CORPORATION. All rights reserved.
93138-PB05-R-11.22.02
Phone: 949-450-8700
FAX: 949-450-8710
Email: info@broadcom.com
Web: www.broadcom.com
京公网安备 11010802033920号
EEWORLD
