L2702-15 ETC-unknow, L2702-15 Datasheet

L2702-15

Manufacturer Part Number

L2702-15

Description

Manufacturer

ETC-unknow

Datasheet

1.L2702-15.pdf (24 pages)

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SmartACFL    Modem

V.90/K56flex  /V.34/V.32bis Modem Device Sets with Microcontroller (L2702),

Modem Data Pump (P9373), SmartDAA  (20463), and Optional Voice Codec (20437)

for Low Power Applications

The Conexant SmartACFL V.90/K56flex Modem Device Set with SmartDAA

technology supports analog data up to 56 Kbps, analog fax to 14.4 Kbps,

telephone answering machine (TAM), V.80 synchronous access mode, on-

board DSVD, voice/speakerphone (optional), and cellular/GSM operation.

Serial, parallel, or PC Card host interface operation is supported depending on

the selected model (Table 1).

The modem supports ITU-T V.90/K56flex, V.34 and V.32bis data

modulations and is designed to operate with dial-up telephone lines in the U.S.

and worldwide. PC Card and parallel host interface models also support analog

cellular direct connect and GSM direct connect. Low profile, small TQFP

packages and low voltage operation with low power consumption make this

device set ideal for laptop, notebook, and palmtop applications using the

parallel host or serial DTE interface with the MCU, or the PC Card interface

with the MCUP.

The SmartACFL device set consists of a Microcontroller (MCU or MCUP) in a

128-pin TQFP, a Modem Data Pump (MDP) in a 100-pin TQFP, and a Line

Side Device (LSD) (SmartDAA device) in a 32-pin TQFP. The optional Voice

Codec (VC), in a 32-pin TQFP, supports voice/full-duplex speakerphone

(FDSP) operation with interfaces to a microphone and speaker and to a

telephone handset/headset. Figure 1 identifies the major hardware signal

interfaces. The MCUP supports two peripheral channels, one channel for the

modem and a second channel for an optional user-defined function

(Function 2).

Conexant's SmartDAA technology (patent pending) eliminates the need for a

costly line transformer, relays, and opto-isolators typically used in discrete DAA

(Data Access Arrangement) implementations. The SmartDAA architecture also

simplifies product implementation by eliminating the need for country-specific

components enabling worldwide homologation of a single modem board design

and a single bill of materials (BOM).

The SmartDAA system-powered DAA operates reliably without drawing power

from the line, unlike line-powered DAAs that operate poorly when line current is

insufficient due to long lines or poor line conditions. Enhanced features, such

as monitoring of local extension status without going off-hook, are also

supported.

Incorporating Conexant’s proprietary Digital Isolation Barrier (DIB) design

(patent pending) and other innovative DAA features, the SmartDAA

architecture simplifies application design, minimizes layout area, and reduces

component cost.

Data Sheet (Preliminary)

Conexant Proprietary Information

Features

• V.90 data/V.17 fax modem

• SmartDAA technology

• Data/Fax/Voice call discrimination

• Hardware-based modem controller

• Hardware-based digital signal

• Voice/full-duplex speakerphone mode

• V.70 DSVD using optional RCDSVD

• World-wide operation

• Industry standard communication

• Selectable parallel/serial interface with

• V.80 synchronous access mode

• Direct mode (serial interface)

• Synchronous data mode

• V.22 bis fast connect

• Analog cellular direct connect

• GSM direct connect

• Sleep mode

• Thin packages support low profile

• +3.3V operation with +5V tolerant

− System side powered DAA operates

− Wake-on-ring

− Ring detection

− Line polarity reversal detection

− Line current loss detection

− Pulse dialing

− Call waiting detection

− Digital PBX line protection

− Meets world-wide DC VI Masks

− Caller ID detection

processor (DSP)

(S models)

SCP (S models)

commands

speeds up to 230.4 kbps

− Parallel 16550A UART-compatible

− Serial ITU-T V.24 (EIA/TIA-232-E)

(serial interface)

designs

digital inputs

under poor line current supply

conditions

requirements

interface

December 21, 1999

Doc. No.100444A

Related parts for L2702-15

L2702-15 Summary of contents

Page 1

... SmartACFL    Modem V.90/K56flex  /V.34/V.32bis Modem Device Sets with Microcontroller (L2702), Modem Data Pump (P9373), SmartDAA  (20463), and Optional Voice Codec (20437) for Low Power Applications The Conexant SmartACFL V.90/K56flex Modem Device Set with SmartDAA technology supports analog data Kbps, analog fax to 14 ...

Page 2

... Order No. SmartACFL/56S-PCC DS56-L492-001 L2702-12 SmartACFL/56-PCC DS56-L492-011 L2702-12 SmartACFL/56S DS56-L492-021 L2702-15 SmartACFL/56 DS56-L492-031 L2702-15 Notes: 1. Model options: S Voice and speakerphone PCC PC Card host interface (serial DTE/parallel host if not PCC kbps max. rate per V.90 33 33.6 kbps max. rate per V.34 14 14.4 kbps max. rate per V.32bis 2. Supported functions (Y = Supported ...

Page 3

... The design package includes schematics, bill of materials (BOM), board layout files in Gerber format, and complete documentation. The design is pretested to pass FCC Part 15, Part 68, and CTR 21 for immediate manufacturing. Microcontroller Unit (MCU) L2702: 128-Pin TQFP Central Processor Unit (MCU) MDP Interface ...

Page 4

... Automatic format/speed sensing • Serial sync/async data; parallel async data • Sleep mode • Thin packages support low profile designs (1.6 mm max. height) • MCU (L2702): 128-pin TQFP • MDP (P9373): 100-pin TQFP • LSD (20463): 32-pin TQFP • VC (20437): 32-pin TQFP Description ...

Page 5

V.90/K56flex Modem Device Sets with SmartDAA Technology for Low Power Applications Data/Fax Modes In V.90/K56flex data modem mode, the modem can receive data from a digitally connected central site modem (CSM) at line speeds kbps. Asymmetrical data ...

Page 6

SmartACFL Voice/Speakerphone Mode (S Models) S models include additional telephone handset, external microphone, and external speaker interfaces that support voice and full-duplex speakerphone operation. Hands-free full-duplex telephone operation is supported in Speakerphone Mode under host control. Speakerphone Mode features an ...

Page 7

V.90/K56flex Modem Device Sets with SmartDAA Technology for Low Power Applications Hardware Description SmartDAA technology (patent pending) eliminates the need for a costly analog transformer, relays, and opto-isolators that are typically used in discrete DAA implementations. The programmable SmartDAA architecture ...

Page 8

SmartACFL RCDSVD Speech Codec Processor (SCP) (Optional) The RCDSVD SCP (R6715-14), required for on- board DSVD operation, is packaged in a 100-pin PQFP. The 56.448 MHz crystal frequency is supplied by the MDP XCLK output. MCU/MCUP Firmware MCU/MCUP firmware performs ...

Page 9

V.90/K56flex Modem Device Sets with SmartDAA Technology for Low Power Applications SmartDAA Line Side Device (LSD) The LSD includes a Line Side DIB Interface (LSDI), a coder/decoder (codec), and a Telephone Line Interface (TLI). The LSDI communicates with, and receives ...

Page 10

... SmartACFL MCU/MCUP (L2702) Pinout Diagrams Figure 2. MCU Pin Signals - Serial DTE Interface 128-Pin TQFP 10 V.90/K56flex Modem Device Sets with SmartDAA Technology for Low Power Applications Conexant Proprietary Information 1156F3-4 PO-MCU-Ser-128T Doc. No. 100444A ...

Page 11

V.90/K56flex Modem Device Sets with SmartDAA Technology for Low Power Applications Cellular GSM RCDSVD Firmware option Figure 3. MCU Pin Signals - Parallel Host Interface - 128-Pin TQFP Doc. No. 100444A Conexant Proprietary Information SmartACFL 1156F3-5 PO-MCU-Par-128T 11 ...

Page 12

SmartACFL Cellular GSM RCDSVD Firmware option Figure 4. MCUP Pin Signals - PC Card Interface - 128-Pin TQFP 12 V.90/K56flex Modem Device Sets with SmartDAA Technology for Low Power Applications Conexant Proprietary Information 1156F3-6 PO-MCUP-128T Doc. No. 100444A ...

Page 13

V.90/K56flex Modem Device Sets with SmartDAA Technology for Low Power Applications MDP (P9373) Hardware Pins and Signals General The major functional application signals are summarized below. System Control and Status The following discrete signals are used by the host to ...

Page 14

SmartACFL MCU:CLKOUT RCDSVD: XTLI (OPTIONAL) NC MCU PARALLEL BUS INTERFACE MCU MCU SERIAL DATA AND CLOCK INTERFACE MCU SERIAL VOICE INTERFACE NC Figure 5. MDP (P9373) 100-Pin TQFP Hardware Interface Signals 14 V.90/K56flex Modem Device Sets with SmartDAA Technology for ...

Page 15

V.90/K56flex Modem Device Sets with SmartDAA Technology for Low Power Applications Doc. No. 100444A P9373 Figure 6. MDP (P9373) 100-Pin TQFP Pin Signals Conexant Proprietary Information SmartACFL MD248F4 PO-HSD-100TQFP 15 ...

Page 16

SmartACFL LSD Hardware Pins and Signals MDP Interface (Through DIB) The DIB interface signals are: • Clock (CLK); input • Digital Power (PWR+); input power • Digital Ground (DGND); digital ground • Data Positive (DIB_P); input • Data Negative (DIB_N); ...

Page 17

V.90/K56flex Modem Device Sets with SmartDAA Technology for Low Power Applications DIGITAL ISOLATION BARRIER (DIB ...

Page 18

SmartACFL VC (20437) Hardware Pins and Signals (S Models) General Microphone and analog speaker interface signals, as well as telephone handset/head interface signals are provided to support functions such as speakerphone mode, telephone emulation, microphone voice record, speaker voice playback, ...

Page 19

V.90/K56flex Modem Device Sets with SmartDAA Technology for Low Power Applications IASLEEP DRESET# M_CLK MODEM V_SCLK DATA PUMP V_STROBE (MSD) V_TXSIN V_RXOUT V_CTRL +3.3V VAA (+3.3V) Figure 9. VC (20437) 32-Pin TQFP Hardware Interface Signals Doc. No. 100444A M_DIG_SPEAKER 1 ...

Page 20

... Voltage Applied to Outputs in High Impedance (Off) State DC Input Clamp Current DC Output Clamp Current Static Discharge Voltage (25°C) Latch-up Current (25°C) * VIO = +3.3V ± 0.3V or +5V ± 5%. Mode MCU (L2702-xx) Normal Mode Sleep Mode Stop Mode MDP (P9373) Normal Mode Sleep Mode Stop Mode ...

Page 21

V.90/K56flex Modem Device Sets with SmartDAA Technology for Low Power Applications Package Dimensions The package dimensions are shown in Figure 11 (128-pin TQFP), Figure 12 (100-pin TQFP) and Figure 13 (32-pin TQFP). PIN 1 REF ...

Page 22

SmartACFL 16.00 ± 0.15 14.00 ± 0.05 12.00 REF PIN 1 REF 0.500 BSC 13.87 ± 0.05 14.00 ± 0.05 0.50 REF 1.00 ± .05 0.10 ± .05 COPLANARITY = 0.08 MAX. DETAIL A 22 V.90/K56flex Modem Device Sets with ...

Page 23

V.90/K56flex Modem Device Sets with SmartDAA Technology for Low Power Applications PIN 1 REF DETAIL A Doc. No. 100444A DETAIL Figure 13. Package Dimensions ...

Page 24

Further Information: literature@conexant.com 1-800-854-8099 (North America) 33-14-906-3980 (International) Web Site www.conexant.com World Headquarters Conexant Systems, Inc. 4311 Jamboree Road, P.O. Box C Newport Beach, CA 92658-8902 Phone: (949) 483-4600 Fax: (949) 483-6375 U.S. Florida/South America Phone: (727) 799-8406 Fax: (727) ...

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