Universal Flite Optimizer
Universal Full-Rate ADSL System Chipsets for CPE
MAY 2000
Features
n
Compliant with
— ITU G.992.1 (G.dmt)
— ITU G.992.2 (G.lite)
— ITU G.994.1 (G.hs)
— ANSI T1.413 Issue 2
n
Supports Annex A and Annex C1
n
Supports all framing modes per G.992.1
n
Supports G.dmt, G.lite and T1.413 i2 through
auto-dete ct feat ure
n
Annex A operation
— Up to 8 Mbps downstream, 1 Mbps upstream
for G.dmt mode
— Up to 1.5 Mbps downstream, 512 kbps
upstream for G.lite mode
n
Annex C operation
— Excellent performance for FBM (FEXT bitmap)
and DBM (dual bitmap) modes
n
Suppo rt for dual lat enc y for G.dm t mode
n
Host-based Soft SAR consumes minimum CPU
time
n
PCM interface for STM and voice applications
Benefits
n
Small form factor reduces PC board space
requirements
n
Lowest power dissipation
n
Software upgradeable, eliminates costly
hardware upgrades
n
Lowest BOM, requires only two additional
active components
n
Reference designs available, with software
stacks, for fast time to market
Overview
The Universal Flite Optimizer™ is a chipset for a
full-rate ADSL modem, consisting of only two
chips, a DSP chip and an analog front end.
The chipset incorporates all silicon functions from
the PC interface to the hybrid circuitry for an ITU
G.992.1-compliant full-rate ADSL (asymmetric digi-
tal subscriber line) modem and provides a cost-
effective, small-footprint, low-power solution. This
solution req uires onl y two addi tional act ive co mpo -
nents, an EEPROM and a line driver. No external
memory, controller, or VCXO are required, thus
reducing the BOM cost. Through the choice of soft-
ware drivers and few passive components, the
chipset can be configured for either Annex A or
Annex C operation.
The chipset integrates an efficient power manage-
ment scheme, which guarantees lowest power
consumption. The operating efficiency and pro-
grammability of the chipset ensure long product
lifetime and avoid the need for costly hardware
upgrades.
Software stacks are provided to support PPP-over-
ATM, PPP-over-Ethernet, RFC 148 3, and IP-over-
ATM network pro toc ols.
The Universal Flite Optimizer software drivers sup-
port Micro soft Wi ndows 95, W indows 98, Windo ws
98 Second Edition, Windows 2000, and Windows
Millennium (once available) Operating Systems.
The ATM SAR function is supported via host pro-
cessing with minimum impact on the host CPU.
Since the modem function is independent of the
host CPU, there is no deterioration in PC
performance.
1. Flite Optimizer available to support Annex A only markets.
System Block Diagram
SERIAL
EEPROM
PC DIGITAL
CHIP
ANALOG
FRONT END HYBRID
CIRCUIT
DRIVER PHONELINE
UNIVERSAL FLITE OPTIMIZER
INTERFACE
2 MAY 2000
Universal Flite Optimizer
Universal Full-Rate ADSL System Chipsets for CPE
Disclaimer: The information in this document is intended to help you evaluate this product. Centillium Communications reserves the right to
change or discontinue work on this product without notice. Trademarks: The company and product names mentioned in this document may
be the trademarks or registered trademarks of their manufacturers. Centillium, Centillium Communications, CopperLite, CopperFlite, Flite
Optimizer, and Optimizer are trademarks of Cent illium Communications, Inc.
CT-L62SX81-01-v1.0
Universal Flit e Optimizer USB
n
No external power supply required, even at
maximum G.dmt data rates
n
Powered off the standard USB bus
n
Compliant with USB v1.1 industry standard
Universal Flite Optimizer Mini-PCI
n
Compliant with Mini-PCI v1.0 and PCI v2.2
industry standards
n
3.3V compatible IOs
n
Support of power management v1.1
specification
n
Support for PCI power states D0, D2, and D3
n
169-pin BGA package ideal for Mini-PCI board
space requirements
Universal Flit e Optimi zer PCI
n
Connects to standard PCI version 2.2 PC
interface with support of power management
v1.1 specification
n
Suppor ts MS I inter rupt ca pabi li ty
n
Concurrent ADSL and POTS operation
n
AC97 interface for a soft V.90 modem
Universal Flite Opt imi zer CardBus
n
32-bit bus interface for standard CardBus
design
n
Slew-rate limited outputs, compliant with
CardBus SSO requirements
n
3.3V co mpa tib le IOs
n
AC97 interface for a soft V.90 modem
n
169-pin BGA package ideal for CardBus
Contact Information
Centillium Communications, Inc.
47211 Lakeview Blvd.
Fremont, CA 94538
USA
Tel: (510) 771-3700
Fax: (510) 771-3500
Web: www.centillium.com
Email: info@centillium.com
Part Ordering Information:
Chipset Function Part Number Package
Universal Flite Optimizer USB Digital chip CT-L62DU81 176-pin LQFP
Analog front end CT-L60AT81 32-pin LQFP
Universal Flite Optimizer PCI Digital chip CT-L62DP81 176-pin LQFP
Analog front end CT-L60AT81 32-pin LQFP
Universal Flite Optimizer Mini-PCI Digital chip CT-L62DM81 169-pin BGA
Analog front end CT-L60AT81 32-pin LQFP
Universal Flite Optimizer CardBus Digital chip CT-L62DB81 169-pin BGA
Analog front end CT-L60AT81 32-pin LQFP
Note: The chipsets must be ordered in pairs. Orders of individual components will be filled as chipset orders.
