Details, datasheet, quote on part number: STLC60134
PartSTLC60134
CategoryCommunication => Telephony => Line Card
TitleLine Card
DescriptionTosca (STLC60134 STLC60135) Adsl Modem Chip Set
CompanyST Microelectronics, Inc.
DatasheetDownload STLC60134 datasheet
Quote
Find where to buy
 
  

 

Features, Applications

COMPLETE CHIP SET FOR ADSL MODEM FUNCTIONS COMPLIANCE WITH ANSI T1.413 ISSUE 1 & ISSUE 2 IMPLEMENTS DISCRETE MULTITONE (DMT) MODULATION AND DEMODULATION DATA RATES TO 8Mbps DOWNSTREAM AND TO 1Mbps UPSTREAM WITH 32Kbps GRANULARITY BUILT-IN ATM TRANSPORT SUPPORT ADAPTIVE RATE MODE IN 32Mbps INCREMENTS APPLICABLE AT BOTH ENDS OF LOOP: ATU-C (LT) AND ATU-R (NT) 255 CARRIERS WITH 4.3125KHz SPACING DEDICATED SOFTWARE DRIVER AVAILABLE PROCESSOR INDEPENDENT C++ SOURCE COMPILATION FREQUENCY DIVISION MULTIPLEXING (FDM) FOR HIGH ROBUSTNESS IN PRESENCE OF CROSSTALK REED-SOLOMON FORWARD ERROR CORRECTION TRELLIS CODER AND DECODER PROGRAMMABLE SIMULTANEOUS SUPPORT OF INTERLEAVED AND NON-INTERLEAVED CHANNELS (DUAL LATENCY) FULL, REDUCED AND MINIMAL ATM OVERHEAD FRAMING MODES BIT STREAM MODE CAPABLITY FOR STM TRANSPORT DIRECT CONNECTION TO ATM SYSTEMS VIA UTOPIA INTERFACE (LEVEL OR 2) MICROCONTROLLER INTERFACE WITH 16 BITS MULTIPLEXED ADDRESS/DATA BUS LOW POWER TECHNOLOGY: 1.3w TOTAL SINGLE 3.3V POWER SUPPLY TO +85°c OPERATING TEMP RANGE Applications HIGH SPEED INTERNET ACCESS REMOTE ACCESS TO CORPORATE NETWORK FOR TELECOMMUTERS AND BRANCH OFFICES VIDEO-ON-DEMAND OVER TWISTED PAIR

ADSL MODEMS, DSLAMs, ROUTERS, AND CONCENTRATORS ADSL PC NIC's LITE-ADSL T1.413 BASED FOR NT-SIDE SPLITTERLESS APPLICATIONS GENERAL DESCRIPTION The ADSL modem chip set with ATM interface provides all the active functions required to build a complete ATM-based ADSL modem from line interface to ATM UTOPIA bus. The chip set employs Discrete MultiTone modulation as specified in ANSI T1.413. The chip set can operate at either end of the loop (in ATU-C or ATU-R mode) with only changes in the microcontroller code. Reed-Solomon forward error correction plus Trellis coding with or without interleaving in internal interleaving RAM provides maximum noise immunity. Figure 1. ADSL modem block configuration.

This is preliminary information on a new product now in development. Details are subject to change without notice.

Interleaving is optional and can be used simultaneously on a slow channel (e.g., for data or control info) while a fast channel (e.g., video) operates without interleaving. ICs include rate adaptation capabilities during show time. In transmit direction the chip set allows to select an attenuation of the signal in case of short loops or large echo (politeness). In receive direction the chip set can optionally control an external multiplexer to select an external attenuation of the signal in case of short loops. TOSCA chip set TOSCA is a two-chip ADSL modem transceiver. ST also provides the necessary software for transceiver's external controller. TOSCA can easily be hooked up with ATM systems through the built-in UTOPIA level 2 interface. That allows ATM traffic to be carried, to 8Mbit/s downstream and 1Mbit/s upstream, over a very plain and widespread twisted pair. TOSCA can be used at both ends of the loop (ATU-C and ATU-R ends). The modem control software can be compiled as C++ code, independentlyon the processor used. The driver can be interfaced to any external real time operating system. These pages block diagrams show the main functions built-in in STLC60134 and STLC60135. TOSCA chip set supports three different rate adaptation modes: fixed rate adaptation mode, fixed with capability to boost within fixed range, dynamic rate adaptationduring show time. Modem's performances are set by the following Figure 2. Analog Front End block diagram.

parameters: Rate adaptation mode, Downstream and Upstream bit rate for both latency paths, Noise margins (min, max and target typically at 10E-7 BER without RS, interleaving and trellis), Maximum power spectral density for downstream, Maximum power for both up and downstream, Carrier mask (which tones are disabled), maximum interleaving delay. Tones from number 8 to number 255 can be used: from to 31 for upsteam signals and from to 255 for downstream signals. Numbers 16 and 64 are dedicated to pilot tones which are employed for synchronisation purposes between ATU-C and ATU-R ends. The software sets the use of tones for optimisation of performances. At ATU-R, time recovery is carried out by the chip-set through the pilot tones. This activity is undertaken in two steps in order to achieve no more than 2ppm between ATU-C and ATU-R. The transceiver controller software monitors line and channel. As far as line is concerned noise margin, attenuation, power, carrier load, relative capacity occupation are checked. Channel's monitoring deals with cell-delineation, actual ATM (fast and interleaved) up and downstream rates, achievable ATM DS and US rates (only at ATU-C side). TOSCA ICs TOSCA consists of an Analog Front End (STLC60134) and a Discrete Multitone Modem (STLC60135) integrated circuits which are produced by STMicroelectronics. Here below we will briefly go through the main topics of both the ICs.

TRANSMIT-SIDE VCODAC bits/8.8MHz 4 MUX DAC LPF ATU-C 1.1MHz LPF ATU-R MUX DAC LPF ATU-C 1.1MHz G=0...31dB STEP bits/8.8MHz 4 MUX ADC LPF ATU-C 138KHz ATU-R LPF 1.1MHz LNA 138KHz AGC LPF 138KHz AGC

Analog Front End HCMOS5A (0.5µm) mixed digital and analog technology has been chosen to produce this component that embodies the analog functions of the TOSCA. Automatic gain control amplifiers, placed at the analog functions of the TOSCA. Automatic gain control amplifiers, placed at the analog interface of transmit and receive paths, allow for line's high attenuation in order to keep acceptable noise level of the signal ADC's and DAC's resolution, that is 12-bit wide with 8.8MHz sampling rate. Thanks to the symmetrical architecture the same channel filter can be used as a part of either the upstream or the downstream path: ATU-C or ATU-R end. A built-in driver allows for single external clock generation using a XTAL (ATU-C) or a VCXO (ATU-R). STLC60134 Analog Front End's main features: Rx automatic gain control: in 1dB steps Two input ports allow selection of RX signals, e.g. with or without external attenuation Second transmit port available (i.e. echo cancellation) Programmable low pass and band pass filters 12-bit DAC and ADC, sampling at 8.832MHz Xtal: 35.328MHz, ±50ppm, the accuracy of the frequency is determined by the External XTAL Direct connection to STLC60135 DTM modem Error correction on ADC output Test interface for digital and analog sections Analog and digital loop back modes Figure 3. DMT Modem block diagram. Single 3.3V supply, or 3.3V analog and 3.0V digital supplies Power dissipation 0.4W Power-down mode x 10mm body, 0.5mm pitch) Discrete MultiTone Digital Modem (STLC60135) The DMT modem has been developed HCMOS6 (0.35µm) technology. It performs PMD (Physycal Medium Dependant) sub-layer and TC (Transmission Convergence) sub-layer functions. In other words we can think to split up the chip into two separate blocks: the first one which carries out modem functions (PMD sub layer) and a second one in charge of ATM framing. The chip is controlled and programmed by an external processor and is seen as a memory mapped device. MODEM Functions The modem part of the chip includes all the necessary blocks needed for digitally DMT mapping and demapping. A 14-bit code for every carrier allows constellations with to 16383 points. Internally digital filters carry out Time Equalization to reduce the effects of the inter symbol interfaces. That is followed by Fast Fourier Transform (in transmit direction an Inverse FFT is performed) in order to change from time domain to frequency domain. Afterwards a Frequency Equalization cuts down carrier by carrier the channel distortion; signal's amplitude attenuation and phase rotation. By efficient algorithms, this

R/S DECODER DEFRAMER CELL BASED FUNCT. Rx INTERF.
SIGNAL MONITORING & FEQ UPDATE & DPLL PMD SUBLAYER MAPPER VITERBI R/S CODER
FAST FRAMER CELL BASED FUNCT. Tx INTERF. INTERLEAVED

 

Related products with the same datasheet
STLC60134/5
TOSCA
Some Part number from the same manufacture ST Microelectronics, Inc.
STLC60134/5 Tosca (STLC60134 STLC60135) Adsl Modem Chip Set
STLC60134S Tosca Integrated Adsl CMOS Analog Front-end Circuit
STLC60135 Tosca Adsl DMT Transceiver
STLC60243 Adsl Central Office (CO) Chipset<<<>>>the CopperWing12 Adsl Chipset Family Targets a Complete Set of Solution For Central Office (CO) Adsl Technology Integrating Also Processing And Management Capability
STLC60243
STLC60454 CopperWing12 Adsl Central Office (CO) Chipset
STLC60454 Adsl Central Office (CO) Chipset<<<>>>the CopperWing12 Adsl Chipset Family Targets a Complete Set of Solution For Central Office (CO) Adsl Technology Integrating Also Processing And Management Capability
STLC60844
STLC60845
STLC61255 CopperWing12 Adsl Central Office (CO) Chipset
STLC61255 Adsl Central Office (CO) Chipset<<<>>>the CopperWing12 Adsl Chipset Family Targets a Complete Set of Solution For Central Office (CO) Adsl Technology Integrating Also Processing And Management Capability
STLC61255
STLC61256 CopperWing12 Adsl Central Office (CO) Chipset
STLC61256 Adsl Central Office (CO) Chipset<<<>>>the CopperWing12 Adsl Chipset Family Targets a Complete Set of Solution For Central Office (CO) Adsl Technology Integrating Also Processing And Management Capability
STLC7549
STLC7550 Low Power Low Voltage Analog Front End
STLC7550TQF7
STLC7550TQF7TR
STLC7550TQFP
STLC8100 Dual Band Wireless Lan RF Transceiver<<<>>>the Stmicroelectronics STLC8100 Wireless Lan<<<>>>rf Device is an Integrated Direct Conversion Tx/<<<>>>Rx, With On-chip Synthesizer For Channel Selection Across
STLC8201 Dual Band Wireless Lan Baseband Processor<<<>>>the Stmicroelectronics STLC8201 Wireless Lan<<<>>>baseband Processor is an Integrated Medium Access<<<>>>controller And Physical Layer Processor. It<<<>>>is
Same catergory

AAM79C873KCW : Netphy -1 10/100 MBPS Ethernet Physical Layer Single-chip Transceiver With 100base-fx Support.

AD721 : RGB to Ntsc/pal Encoders. Composite Video Output Chrominance and Luminance (S-Video) Outputs No External Filters or Delay Lines Required Drives 75 Reverse-Terminated Loads Compact 28-Pin PLCC Logic Selectable NTSC or PAL Encoding Modes Automatically Selects Proper Chrominance Filter Cutoff Frequency for Encoding Standard Logic Selectable Encode or Power-Down Mode (AD720 Only).

ADM488 : Low Power, Slew Rate Limited RS-485. Full-Duplex, Low-Power, Slew Rate Limited, EIA RS-485 Transceivers ADM488/ADM489 Meets EIA RS-485 Standard 250 kbps Data Rate Single V 10% Supply +12 V Bus Common-Mode Range 12 k Input Impedance 2 kV EFT Protection Meets IEC1000-4-4 High EM Immunity Meets IEC1000-4-3 Reduced Slew Rate for Low EM Interference Short Circuit Protection Excellent Noise.

AM79C984A : Transceiver/Repeater. Pcnet(tm)-fast i i i Single-chip 10/100 MBPS Pci Ethernet Controller With Integrated PHY.

APE25524 : Very Low Cost Voice And Melody Synthesizer With 4-bits Cpu. Sales E-mail: sales@aplusinc.com.tw Technology E-mail: service@aplusinc.com.tw Address: 3 F-10, No. 32, Sec. 1, Chenggung Rd., Taipei, Taiwan 115, R.O.C. TEL: 886-2-2782-9266 FAX: 886-2-2782-9255 WEBSITE : http: //www.aplusinc.com.tw The APExx24 series are very low cost voice and melody synthesizer with 4-bits CPU. They have various including 4-bits.

BGY68 : Infrastructure CATV-HFC. BGY68; 75 Mhz, 30 DB Gain Reverse Amplifier;; Package: SOT115J.

CS61584A : Dual T1/E1 Line Interface.

LA1130 : am Tuner For Car Radio. The an IC developed for AM tuner systems in car radio applications. It provides low-level local oscillation so that it can be applied in varactor diode tuning applications as well as µ tuning applications. RF amplification MIX OSC (with ALC) IF amplification Detection AGC (normal) RF wide-band AGC Others Good space factor due to single-end package.

LXT6051 : Broadband & Access. Networking & Communications - Broadband & Access Products - te Carrier Access Components T1/E1 - Intel LXT6051 STM1/0 SDH Overhead Terminator.

MAX3514EVKIT : MAX3514EVKIT, MAX3516EVKIT, MAX3517EVKIT Evaluation Kits For The MAX3514/MAX3516/MAX3517.

MAX3874 : MAX3874 2.488Gbps/2.667Gbps Clock And Data Recovery With Limiting Amplifier.

MB1505 : Low Power Serial Input PLL Synthesizer With 600mhz Prescaler. LOW POWER SERIAL INPUT PLL SYNTHESIZER WITH 600MHz PRESCALER The Fujitsu MB1505, utilizing BI-CMOS technology, is a single chip serial input PLL synthesizer with pulse-swallow function. The MB1505 contains a 600MHz two modulus prescaler that can select of either or 64/65 divide ratio, control signal generator, 16-bit shift register, 15-bit latch, programmable.

MF1050V-2 : Saw Filter For Wireless Local Loop. This SAW filter for the receiving RF circuit of digital mobile communication equipment operating at 1477 MHz ~ 1501 MHz. 1. SMD package insures small size, lightweight. 2. Adjustment free. 3. Low insertion loss and high stop band attenuation. 4. Wide and sharp passband characteristics. 5. High stability and reliability. 6. Designed for reflow solderings.

MT9172AC : ISO2-cmos St-bus Family Digital Subscriber Interface Circuit Digital Network Interface Circuit.

PXF4336 : Abm Premium Atm Buf Fer Manager. Edition 2001-12-17 Published by Infineon Technologies AG, St.-Martin-Strasse 53, D-81541 München, Germany Attention please! The information herein is given to describe certain components and shall not be considered as warranted characteristics. Terms of delivery and rights to technical change reserved. We hereby disclaim any and all warranties, including.

ST232AD : Very Highspeed, Ultra Lowpowerconsumption 5v Powered Rs-232 Drivers And Receivers.

TK14570L : = a Wide Band IF IC With a Max if Frequency Band of 15 Mhz. ;; Package = SOT23L-8.

USB97C201 : USB97C201 Usb 2.0 Ata/atapi Controller.

DP83849C : The number of applications requiring Ethernet Connectivity continues to expand. Along with this increased market demand is a change in application requirements. Where single channel Ethernet used to be sufficient, many applications such as wireless remote base stations and industrial networking now require DUAL Port functionality for redundancy or system.

ST802RT1A : 10/100 Real-time Ethernet 3.3 V Transceiver 10/100 real-time Ethernet 3.3 V transceiver.

 
0-C     D-L     M-R     S-Z