BCM3341KPBG Broadcom, BCM3341KPBG Datasheet - Page 2

• Manufacturer Part Number: BCM3341KPBG
• Manufacturer: Broadcom

Specifications of BCM3341KPBG

• Lead Free Status / RoHS Status: Compliant

The BCM3341 offers the industry a highly integrated, cost effective
approach to developing voice cable modem solutions for the delivery of
primary or secondary line telephony. The BCM3341 provides a seamless
interface to the BCM3349 single chip DOCSIS/EuroDOCSIS™ 2.0
cable modem.
In conjunction with the CablexChange software suite, the BCM3341
enables a leading performance, full featured voice cable modem solution
that supports a wide range of protocols, vocoders, and other software
features to be implemented in a single firmware image, reducing
software complexity and flash storage requirements.
Integrated battery supply sensing, SRAM, system reference clock inputs,
and codecs simplify design and significantly reduce system bill of
materials for lower total system cost and improved time to market.
Key modules integrated into the BCM3341 include:
• 260-DMIPS VoIP DSP with patented PacketSync supports two
• Integrated two-line FlexiVoice voice codec with individual line
Broadcom
and CablexChange
United States, certain other countries and/or the EU. Any other trademarks or trade names mentioned are
the property of their respective owners.
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
© 2005 by BROADCOM CORPORATION. All rights reserved.
3341-PB04-R
primary lines of compressed voice packets plus T.38 fax relay. It can
simultaneously support two secondary lines of G.711 for various
class of service such as three way calling and caller ID.
programmable filter coefficients, providing optimum performance
for voice, modem, and fax applications.
HVG Control
®
, the pulse logo, Connecting everything
®
3.3 V
10/21/05
DPI
are among the trademarks of Broadcom Corporation and/or its affiliates in the
BCM3341
®
Controller
DSP Port
Converter
Interface
HVG
1.8 V
®
, the Connecting everything logo, FlexiVoice™,
JTAG
JTAG
PB Bridge
DSP/ISN
Interface
Interrupt
Control
Timers
Inteface
DSP
O V E R V I E W
266-DMIPS DSP
133-MHz
Interface
DSP/PB
Interface
SRAM
• Grant synchronization engine: A voice packetization scheduler that
• Integrated DOCSIS system clock synchronization provides clock
• Up to 128k x 8k or 64k x 16k memory expansion capabilities for
• PCM IOM2 interface for connecting external devices supporting
To design a two-channel voice cable modem, when used with BCM3349
DOCSIS modem and CablexChange software, the BCM3341 completes
a cost effective, high performance world wide solution.
synchronizes the voice packets with the DOCSIS grant slots,
potentially saving 10–20 ms of VoIP packet delay, providing higher
voice quality.
synchronization in the entire voice path for a slip free voice.
(CODEC<>DSP<>DOCSISMAC<>DOCSIS CMTS) Solutions
without such synchronization incur voice packet slips that lower the
quality of voice calls.
additional DSP features such as T.38 fax relay or additional
simultaneous vocoders.
applications such as DECT wireless handsets.
HWY
PCM
Data SRAM
Program
SRAM
GPIO
ADM
APM
MPI/
2 ch
SPI
Grant Sync
Generation
Module
Clock
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Web: www.broadcom.com
Grant_Syncn
Reference In
Hook detect
PCM HWY
4-wire
Differential
Audio
SLIC Control
GPIO
INT/GPIO
External
SLAC
Control