DSP1648C AGERE | Alldatasheet

Document overview

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Technical content

Features

I Two chip 3.3 V PCI modem solution with

5 V tolerant buffers

I Data mode capabilities: — ITU-T V.92 *: 56000 bits/s—28000 bits/s — ITU-T V.90*: 56000 bits/s—28000 bits/s — ITU-T V.34: 33600 bits/s—2400 bits/s — V.32bis, and fallbacks — V.42 and MNP ™ error correction (LAPM) — V.44, V.42bis and MNP Class 5 data compression I FAX mode capabilities: — ITU-T V.17, V.29, V.27ter, and V.21 Ch 2 — ITU-T T.31 Class 1 FAX I Compatible with transformer-based and silicon DAA circuits: — High-precision sigma-delta codec (CSP1034C) — Line-powered silicon DAA (CSP1035A) I Enhanced voice features: — Full-duplex speakerphone (requires CSP1027 audio codec) — Telephone answering machine (TAM) — Caller identification (caller-ID) I V.80 video-ready interface I Bit I/Os to support domestic and international DAAs I Low power consumption I Flexible power management modes I Operating system support: Windows ® 95, 98, 2000, Windows NT ® 4.0, Windows ME, and Windows XP — Linux ® — PC 2001 compliant Introduction The DSP1648C, host-accelerated modem chip is an exciting new upgrade to Agere Systems Inc. line of host-based controller modems. The DSP1648C upgrades the technologies found in the DSP1648 V.90 modem solution to the new ITU-T recommendations V.92 and V.44 communication industry standards. V.92 and V.44 have four innova- tive features, designed to improve modem perfor- mance in the internet environment. The new features are as follows: I Modem fast connect: faster start-up times. I Modem on hold†: switch between modem and an incoming phone call without losing the data connection. I PCM upstream: send data to central site at rates approaching 48 kbits/s. I Data compression enhancement focused on todays internet traffic. The DSP1648C has an integrated PCI interface, which eliminates the 16550 UART bottleneck found in traditional hardware modems. The PCI interface supports both slave and master operations while pro- viding greater access to host PC system resources. Host-based controller modems have the benefit of using powerful CPUs and accessing their plentiful RAM and disk space. Modem firmware can therefore be updated in the field since the code simply resides on the disk. With this feature set, designers can create full-fea- tured modem solutions which are characterized by low-cost, low power consumption, and high-perfor- mance. * Due to FCC limitations, speeds of 53 kbits/s are the maximum permissible transmit power levels during download transmis- sion. Actual data speeds will vary depending on the line conditions. † Modem on hold functionality requires call waiting services.

access arrangement (DAA) or a CSP1034 line codec. shelf TAPI compliant voice and telephony applications. 11.025 kHz for both 8-bit and 16-bit samples. chip set facilitates future upgrades. directly to the data pump hardware. Figure 1. Agere Systems DSP1648C and Transformer-Based DAA Block Diagram

I Additional on-chip RAM for V.92 support. supply, vaux, or a regulated 3.3 V supply. device of the signaling voltage being used on the bus. Figure 2. Agere Systems DSP1648C Host-Based Controller Modem Chip Set Block Diagram

Agere Systems Inc. reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application. Copyright © 2001 Agere Systems Inc. All Rights Reserved September 2001 PB01-028DMOD For additional information, contact your Agere Systems Account Manager or the following: INTERNET: http://www.agere.com E-MAIL: docmaster@agere.com N. AMERICA: Agere Systems Inc., 555 Union Boulevard, Room 30L-15P-BA, Allentown, PA 18109-3286 1-800-372-2447, FAX 610-712-4106 (In CANADA: 1-800-553-2448, FAX 610-712-4106) ASIA: Agere Systems Hong Kong Ltd., Suites 3201 & 3210-12, 32/F , Tower 2, The Gateway, Harbour City, Kowloon Tel. (852) 3129-2000, FAX (852) 3129-2020 CHINA: (86) 21-5047-1212 (Shanghai), (86) 10-6522-5566 (Beijing), (86) 755-695-7224 (Shenzhen) JAPAN: (81) 3-5421-1600 (Tokyo), KOREA: (82) 2-767-1850 (Seoul), SINGAPORE: (65) 778-8833, T AIWAN: (886) 2-2725-5858 (Taipei) EUROPE: Tel. (44) 7000 624624, FAX (44) 1344 488 045 Product Brief September 2001Host-Based Controller V.92 Modem Chip Set Agere Systems DSP1648C

Package Information

Figure 3. DSP1648C Chip Set Package Options

Ordering Information

MNP is a trademark of Microcom, Inc. Windows and Windows NT are registered trademarks of Microsoft Corporation. Linux is a registered trademark of William Della Croce, Jr. Device Description Voltage Package Part Number Comcode DSP1648C Modem Chip 3.3/5 V 100 TQFP 1648C-TV5SEGV-DB 109061374 CSP1034C Modem Codec 3.3 V 48 TQFP CSP1034C-T11 108159542 CSP1035A Silicon DAA 3.3 V 48 TQFP CSP1035A-T11 108393935 CSP1027 Audio Codec 3.3/5 V 48 TQFP CSP1027-S11 106888555 0671 (f) c DSP1648C 100-PIN TQFP DSP1648C DIME DIME (U.S.A.) CSP1034C 48-PIN TQFP CSP1027 CSP 1027 48-PIN TQFP CSP 1034C CSP1035A 48-PIN TQFP CSP 1035A