Advance Product Note January 2000 LU97—AC-Link Soft Modem Chip Set Features ■ Operating system support: — Windows* 95, 98, 2000 — PC ‘99 compliant — ACPI compliant ■ High-speed data mode capabilities: — ITU-T V.90 data rates 28000 bits/s— 56000 bits/s† — Ultrahigh compression throughput due to parallel access directly to the host PC — ITU-T V.34 extended rates: 33600 bits/s— 2400 bits/s V.32terbo, V.32bis, and fallbacks — TIA/EIA§ 602 standard for AT command set — V.42 error correction (LAPM and MNP ‡) — V.42bis and MNP Class 5 data compression ■ FAX mode capabilities: — ITU-T V.17, V.29, V.27ter, and V.21 Ch 2 — TIA/EIA 578 Class 1 FAX ■ Video-ready modem interface (VRM) V.80 ■ Complete DAA includes the following: — AC‘97/MC‘97 2.1 compliant — International line interface — Compliant with FCC, CTR21, JATE, and other PTTs — 3.3 V to 5 V power supply — 2400 V isolation — Integrated ring detector — Integrated analog front end (AFE) — 2-wire to 4-wire hybrid — Low-power standby mode — Low-profile SOIC packages ■ Applications: — Modem riser cards — Mobile daughter cards * Windows and Windows NT are registered trademarks of Microsoft Corporation. † Actual speeds over U.S. telephone lines vary and are less than 56K, due to current FCC regulations and line conditions. ‡ MNP is a registered trademark of Microcom, Inc. § EIA is a registered trademark of Electronic Industries Association. Introduction The Lucent Technologies LU97 chip set is an integrated direct access arrangement (DAA) chip set that provides a low-cost, isolated, silicon-based MC‘97 compliant interface to the telephone line. The chip set saves cost and board area by eliminating the need for a modem AFE or serial codec. It also eliminates the need for an isolation transformer, relays, optoisolators, and a 2-wire to 4-wire hybrid. The LU97 chip set complies with AC‘97/MC‘97 Interface Specification Rev. 2.1. The chip set is fully programmable to meet worldwide telephone line interface requirements, including those described by CTR21, JATE, FCC, and various country-specific PTT specifications. The programmable parameters of the LU97 chip set include ac termination, dc termination, ringer impedance, and ringer threshold. The LU97 chip set has been designed to meet stringent worldwide requirements for out-ofband energy, billing-tone immunity, lightning surges, and safety requirements. The LU97 chip set achieves an isolation barrier through low-cost, high-voltage capacitors in conjunction with Lucent’s proprietary signal processing techniques. These techniques eliminate any signal degradation due to capacitor mismatches, commonmode interference, or noise coupling. All transmit, receive, control, and ring detect data are communicated through this barrier. The LU97 chip set is available in two 16-pin small outline packages with an AC‘97 interface on the CSP1037 and a telephone line interface on the CSP1037A/B. The CSP1037A is designed for domestic DAAs, while the CSP1037B is for international DAAs. Advance Product Note January 2000 LU97—AC-Link Soft Modem Chip Set Functional Description CSP1037 CSP1037A/B XOUT MCLK/XIN RX CLOCK HYBRID AND dc TERMINATION RESET BIT_CLK SYNC AC‘97 DIGITAL INTERFACE SDATA_IN ISOLATION INTERFACE SDATA_OUT ISOLATION INTERFACE ID0 RING DETECT FILT FILT2 REF DCT VREG VREG2 REXT REXT2 RNG1 RNG2 ID1 CONTROL INTERFACE QB GPIO_A QE OFF-HOOK GPIO_B QE2 5-8164 (F) Figure 1. Functional Block Diagram The LU97 chip set is an integrated direct access arrangement (DAA) that provides a programmable line interface to meet international telephone line requirements. The LU97 chip set is available in two 16-pin small outline packages (AC‘97 interface on CSP1037 and telephone line interface on CSP1037A/B). The chip set eliminates the need for an AFE, an isolation transformer, relays, optoisolators, and a 2-wire to 4-wire hybrid. The LU97 chip set dramatically reduces the number of discrete components and cost required to achieve compliance with international regulatory requirements. The CSP1037 complies with AC‘97/MC‘97 Interface Specification Rev. 2.1. The chip set is fully programmable to meet worldwide telephone line interface requirements, including those described by CTR21, JATE, FCC, and various country-specific PTT specifications. The programmable parameters of the LU97 chip set include ac termination, dc termination, ringer impedance, and ringer threshold. The LU97 chip set has been designed to meet stringent worldwide requirements for out-of-band energy, billing-tone immunity, lightning surges, and safety requirements. The LU97 chip set achieves an isolation barrier through low-cost, high-voltage capacitors in conjunction with Lucent’s proprietary signal processing techniques. These techniques eliminate any signal degradation due to capacitor mismatches, common-mode interference, or noise coupling. All transmit, receive, control, and ring detect data are communicated through this barrier. 2 Lucent Technologies Inc. Advance Product Note January 2000 LU97—AC-Link Soft Modem Chip Set Pin Information CSP1037 Pin Information MCLK/XIN 1 16 GPIO_A XOUT 2 15 GPIO_B BIT_CLK 3 14 ID1 13 VA 12 GND 6 11 C1A SYNC 7 10 ID0 RESET 8 9 VD 4 SDATA_IN 5 SDATA_OUT CSP1037 AOUT 5-8163 (F) Figure 2. CSP1037 Pin Locations, 16-Pin SOIC Table 1. CSP1037 Pin Locations, 16-Pin SOIC Pin Name Type Pin Name Type Pin Name Type Pin Name Type 1 2 3 4 MCLK/XIN XOUT BIT_CLK VD I O I/O P 5 6 7 8 SDATA_IN SDATA_OUT SYNC RESET O I I I 9 10 11 12 AOUT ID0 C1A GND O I — P 13 14 15 16 VA ID1 GPIO_B GPIO_A P I I/O I/O CSP1037 Serial Interface Signals Table 2. CSP1037 Serial Interface Signal Descriptions Signal Description BIT_CLK Serial Port Bit Clock Output/Input. Controls the serial data on SDATA_IN and latches the data on SDATA_OUT. Output when configured as primary device. Input when configured as secondary device. Serial Port Data Out. Serial communication and control data that is generated by the digital AC‘97 controller and presented as an input to the CSP1037. Serial Port Data In. Serial communication and status data that is provided by the CSP1037 to the digital AC‘97 controller. Frame Sync Input. Data framing signal that is used to indicate the start and stop of a communication data frame. Reset Input (Active-Low). An active-low input that is used to reset all control registers to a defined, initialized state. Also used to bring the LU97 chip set out of sleep mode. SDATA_IN SDATA_OUT SYNC RESET Lucent Technologies Inc. 3 Advance Product Note January 2000 LU97—AC-Link Soft Modem Chip Set Pin Information (continued) CSP1037 Miscellaneous Signals Table 3. CSP1037 Miscellaneous Signal Descriptions Signal Description ID0 ID1 AOUT C1A MCLK/XIN XOUT GPIO_A GPIO_B Device ID Bit 0. Bit 0 of the device configuration. Device ID Bit 1. Bit 1 of the device configuration. Analog Speaker Output. Provides an analog output signal for driving a call progress speaker. Isolation Capacitor 1A. Connects to one side of the isolation capacitor C1. Master Clock Input/Crystal Input. Crystal Output. General-Purpose I/O A. Programmable via registers 4Ch—54h. Default input. General-Purpose I/O B. Programmable via registers 4Ch—54h. Default input. CSP1037 Power Signals Table 4. CSP1037 Power Signal Descriptions Signal Description VD Digital Supply Voltage. Provides the digital supply voltage to the CSP1037. Nominally either 3.3 V or 5 V. Analog Supply Voltage. Provides analog supply voltage for the CSP1037. Nominally 5 V. Ground. Connects to the system digital ground. Also connects to capacitor C2. VA GND CSP1037A/B Pin Information QE2 1 16 FILT2 DCT 2 15 FILT IGND 3 14 RX C1B 4 13 REXT RNG1 5 12 REXT2 RNG2 6 11 REF QB 7 10 VREG2 QE 8 9 VREG CSP1037A/B 5-8165 (F) Figure 3. CSP1037A/B Pin Locations, 16-Pin SOIC Table 5. CSP1037A/B Pin Locations, 16-Pin SOIC 4 Pin Name Pin Name Pin Name Pin Name 1 2 3 4 QE2 DCT IGND C1B 5 6 7 8 RNG1 RNG2 QB QE 9 10 11 12 VREG VREG2 REF REXT2 13 14 15 16 REXT RX FILT FILT2 Lucent Technologies Inc. Advance Product Note January 2000 LU97—AC-Link Soft Modem Chip Set Pin Information (continued) CSP1037A/B Line Interface Signals Table 6. CSP1037A/B Line Interface Signal Descriptions Signal Description FILT FILT2 RX DCT REXT REXT2 RNG1 Filter. Sets the time constant for the dc termination circuit. Filter 2. Sets the time constant for the dc termination circuit. Receive Input. Serves as the receive side input from the telephone network. dc Termination. Provides dc termination to the telephone network. External Resistor. Sets the real ac termination impedance. External Resistor 2. Sets the complex ac termination impedance. Ring 1. Connects through a 2200 pF capacitor to the tip lead of the telephone line. Provides the ring and signals to the CSP1037A/B. Ring 2. Connects through a 2200 pF capacitor to the ring lead of the telephone line. Provides the ring and signals to the CSP1037A/B. Transistor Base. Connects to the base of transistor Q3. Transistor Emitter. Connects to the emitter of transistor Q3. Transistor Emitter 2. Connects to the emitter of transistor Q4. Reference. Connects to an external resistor to provide a high-accuracy reference current. RNG2 QB QE QE2 REF CSP1037A/B Isolation Signals Table 7. CSP1037A/B Isolation Signal Descriptions Signal Description C1B IGND Isolation Capacitor 1B. Connects to one side of isolation capacitor C1. Isolated Ground. Connects to ground on the line-side interface. Also connects to capacitor C2. CSP1037A/B Miscellaneous Signals Table 8. CSP1037A/B Miscellaneous Signal Descriptions Signal Description VREG VREG2 Voltage Regulator. Connects to an external capacitor to provide bypassing for an internal voltage. Voltage Regulator 2. Connects to an external capacitor to provide bypassing for an internal power supply. Lucent Technologies Inc. 5 Advance Product Note January 2000 LU97—AC-Link Soft Modem Chip Set Package Outline Diagram LU97 16-Pin Small-Outline Package Dimensions are in millimeters. 9.80/10.01 16 1.07 REF 9 3.90 ± 0.10 0.010 0.19/0.25 GAGE PLANE 6.00 ± 0.20 SEATING PLANE 0.40/1.27 1 8 DETAIL A 0.33/0.51 1.40 ± 0.10 1.27 SEATING PLANE 0.10 1.35/1.75 0.10/0.25 SEE DETAIL A 5-8994 (F) Ordering Information Table 9. LU97 Ordering Information 6 Device Package Comcode CSP1037 CSP1037A CSP1037B 16-pin, small-outline 16-pin, small-outline 16-pin, small-outline 108500117 108500091 108500109 Lucent Technologies Inc. Advance Product Note January 2000 LU97—AC-Link Soft Modem Chip Set Notes Lucent Technologies Inc. 7 For additional information, contact your Microelectronics Group Account Manager or the following: INTERNET: http://www.lucent.com/micro E-MAIL: [email protected] N. AMERICA: Microelectronics Group, Lucent Technologies Inc., 555 Union Boulevard, Room 30L-15P-BA, Allentown, PA 18103 1-800-372-2447, FAX 610-712-4106 (In CANADA: 1-800-553-2448, FAX 610-712-4106) ASIA PACIFIC: Microelectronics Group, Lucent Technologies Singapore Pte. Ltd., 77 Science Park Drive, #03-18 Cintech III, Singapore 118256 Tel. (65) 778 8833, FAX (65) 777 7495 CHINA: Microelectronics Group, Lucent Technologies (China) Co., Ltd., A-F2, 23/F, Zao Fong Universe Building, 1800 Zhong Shan Xi Road, Shanghai 200233 P. R. China Tel. (86) 21 6440 0468, ext. 316, FAX (86) 21 6440 0652 JAPAN: Microelectronics Group, Lucent Technologies Japan Ltd., 7-18, Higashi-Gotanda 2-chome, Shinagawa-ku, Tokyo 141, Japan Tel. (81) 3 5421 1600, FAX (81) 3 5421 1700 EUROPE: Data Requests: MICROELECTRONICS GROUP DATALINE: Tel. (44) 7000 582 368, FAX (44) 1189 328 148 Technical Inquiries: GERMANY: (49) 89 95086 0 (Munich), UNITED KINGDOM: (44) 1344 865 900 (Ascot), FRANCE: (33) 1 40 83 68 00 (Paris), SWEDEN: (46) 8 594 607 00 (Stockholm), FINLAND: (358) 9 4354 2800 (Helsinki), ITALY: (39) 02 6608131 (Milan), SPAIN: (34) 1 807 1441 (Madrid) Lucent Technologies 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. No rights under any patent accompany the sale of any such product(s) or information. Copyright © 2000 Lucent Technologies Inc. All Rights Reserved Printed in U.S.A. January 2000 PN99-096DMOD