Conexant L5502-11, R6785-21, R6785-24, R6764-21, R6764-24 Datasheet

Data Sheet

Conexant Proprietary Information

Doc. No.100586C

November 10, 1999

HCFL/56

V.90/K56flex



PC Card Device Sets

for Host-Controlled, Low Power Applications

Conexant HCFL/56 PC Card Device Sets support high-speed
analog data up to 56 kbps, 14.4 kbps fax, voice/TAM, analog
cellular direct connect, and speakerphone (optional) operation
(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. Low profile, small
PQFP/TQFP packages and low voltage operation with low power
consumption make this device set ideal for laptop, notebook, and
palmtop applications.

The device set consists of a PCMCIA bus interface device (L5502­11 PCMCIA BIF) in a 128-pin TQFP and a modem data pump
(MDP) in a 144-pin TQFP or 100-pin PQFP. Host modem software
is provided and the downloadable architecture allows updating of
MDP executable code.

The L5502-11 PCMCIA bus interface device supports two
peripheral channels, one channel for the modem and a second
channel for an optional user-defined function (Function 2).

In V.90/K56flex mode, the modem can receive data at speeds up
to 56 kbps from a digitally connected V.90- or K56flex-compatible
central site modem. Taking advantage of the PSTN, which is
primarily digital except for the client modem to central office local
loop, V.90/K56flex modems are ideal for applications such as
remote access to an Internet Service Provider (ISP), on-line
service, or corporate site. The modem can send data at speeds up
to V.34 rates.

In V.34 data mode, the modem operates at line speeds up to 33.6
kbps. Error correction (V.42/MNP 2-4) and data compression
(V.42bis/MNP 5) maximize data transfer integrity and boost
average data throughput. Non-error-correcting mode is also
supported.

In V.32bis mode, the modem operates at line speeds up to 14.4
kbps.

In voice/TAM mode, enhanced 2-bit or 4-bit per sample ADPCM
coding and decoding at 7200 Hz sample rate allows efficient digital
storage of voice/audio. This mode supports applications such as
digital telephone answering machine (TAM), voice annotation, and
recording from and playback to the telephone line.

Features

•

Data modem

−

ITU-T V.90 and K56flex, V.34 (33.6

kbps), V.32 bis, V.32, V.22 bis, V.22,
V.23, and V.21; Bell 212A and 103

−

V.42 LAPM and MNP 2-4 error

correction and MNP 10 error correction

−

V.42 bis and MNP 5 data compression

−

V.250 (ex V.25 ter) and V.251 (ex V.25

ter Annex A) commands

−

Fax modem send and receive rates up

to 14.4 kbps, ITU-T V.17, V.29, V.27
ter, and V.21 channel 2

−

EIA/TIA 578 Class 1 and T.31 Class 1.0

commands

−

MNP 10EC™ enhanced cellular

performance

•

Analog cellular direct connect

•

V.80 synchronous access mode supports
host-based communication protocols

−

H.324 interface support

•

World-class operation

−

Call progress

−

Blacklisting

−

Multiple country support

•

Voice, telephony, TAM

−

V.253 commands

−

8-bit µ-Law/A-Law coding (G.711)

−

8-bit/16-bit linear coding

−

8000/7200 Hz sample rate

−

Music on hold from host or analog

hardware input

−

TAM support with concurrent DTMF

detect, ring detect, and caller ID

−

Handset support (S models)

•

Signal Processing Option

−

Hardware-based for minimal host

loading.

HCFL/56 V.90/K56flex PC Card Device Sets for Host-Controlled, Low Power Applications

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Conexant

Doc. No. 100586C

Proprietary Information November 10, 1999

Table 1. Modem Models and Functions

Model/Order/Part Numbers Supported Functions

Marketing

Model Number

1

Device Set

Order Number

PCMCIA

Bus

Interface

Device

[128 TQFP]

Part No.

MDP

[144-TQFP]

Part No.

V.90 and

K56flex Data

V.34 Data, V.32 bis Data,

Fax Cl 1 and 2,

W-Class,

Voice/TAM, Cellular

FDSP

HCFL/56S-PCC DS56-L491-011 L5502-11 R6785-21 Y Y Y Y

HCFL/56-PCC DS56-L490-011 L5502-11 R6785-24 Y Y Y –

Marketing

Model Number

1

Device Set

Order Number

PCMCIA

Bus

Interface

Device

[128 TQFP]

Part No.

MDP

[100-PQFP]

Part No.

V.90 and

K56flex Data

V.34 Data, V.32 bis Data,

Fax Cl 1 and 2,

W-Class,

Voice/TAM, Cellular

FDSP

HCFL/56S-PCC DS56-L491-001 L5502-11 R6764-21 Y Y Y Y

HCFL/56-PCC DS56-L490-001 L5502-11 R6764-24 Y Y Y –

Notes:

1. Model options (Y = Supported, – = Not supported, O = Optional):
PCC PC Card host interface
S Speakerphone

2. Supported functions (Y = Supported; – = Not supported)
Cellular Analog cellular direct connect
Fax Cl 1 and 2 Fax Class 1 and Fax Class 2 support
FDSP Full-duplex speakerphone
Voice/TAM Voice and telephone answering machine support (handset support requires S model)

Information provided by Conexant Systems, Inc. is believed to be accurate and reliable. However, no responsibility is assumed by Conexant for its use, nor any
infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent rights of
Conexant other than for circuitry embodied in Conexant products. Conexant reserves the right to change circuitry at any time without notice. This document is
subject to change without notice.

Conexant products are not designed or intended for use in life support appliances, devices, or systems where malfunction of a Conexant product can reasonably be
expected to result in personal injury or death. Conexant customers using or selling Conexant products for use in such applications do so at their own risk and agree
to fully indemnify Conexant for any damages resulting from such improper use or sale.

K56flex is a trademark of Conexant Systems, Inc. and Lucent Technologies.

Conexant, “What's Next in Communications Technologies”, the Conexant C symbol, and the Conexant logo, are trademarks of Conexant Systems, Inc.

Product names or services listed in this publication are for identification purposes only, and may be trademarks or registered trademarks of their respective
companies. All other marks mentioned herein are the property of their respective owners.

©1999, Conexant Systems, Inc.
All Rights Reserved

V.90/K56flex PC Card Device Sets for Host-Controlled, Low Power Applications HCFL/56

Doc. No. 100586C

Conexant

3

November 10, 1999 Proprietary Information

Introduction

(Continued from first page)

S models support position independent, full-duplex speakerphone
(FDSP) operation using microphone and speaker, as well as other
voice/TAM applications using handset or headset.

Fax Group 3 send and receive rates are supported up to 14.4 kbps
with T.30 protocol.

V.80 synchronous access mode supports host-based
communication protocols, e. g., H.324 video conferencing.

Analog cellular direct connect operation is supported by licensed
firmware for specific phone types.

Accelerator kits and reference designs are available to minimize
application design time and costs.

Features

(Continued from first page)

•

Full-duplex speakerphone (FDSP) mode
(S models)

−

Telephone handset interface

−

External microphone and speaker

interface

−

Microphone gain and muting

−

Speaker volume control and muting

−

Adaptive acoustic, line, and handset

echo cancellation

−

Loop gain control, transmit and receive

path AGC

•

Data/Fax/Voice call discrimination

•

Single profile stored in host

•

System Compatibilities

−

Windows 95, Windows 95 OSR2,

Windows 98, Windows NT 4.0,
Windows 2000 operating systems

−

Microsoft’s PC 98 Design Initiative

compliant

−

Unimodem/V compliant

−

Pentium 133 MHz equivalent or greater

−

16 Mbyte RAM or more

•

Communication software compatible AT
command sets

•

NVRAM directory, stored profiles, and CIS
table (option)

•

Internal phase-locked loop (PLL)

•

Built-in host/DTE interface with speeds up
to 230.4 kbps

•

PC Card interface supports two functions
with programmable I/O window size

•

Flow control and speed buffering

•

Automatic format/speed sensing

•

Caller ID and distinctive ring detect

•

JTAG Boundary Scan support

•

Flexible PQFP and TQFP packaging
options

−

L5502-11 PCMCIA BIF: 128-pin TQFP

−

MDP: 144-pin TQFP or 100-PQFP

•

+3.3V operation with +5V tolerant inputs

•

Sleep Mode

•

Power use (mW, typical):

Device Normal Sleep

L5502-11 165 10
MDP 250 33

HCFL/56 V.90/K56flex PC Card Device Sets for Host-Controlled, Low Power Applications

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Conexant

Doc. No. 100586C

Proprietary Information November 10, 1999

Description

General

The modem device set, consisting of separate
PCMCIA Bus Interface (L5502-11) and modem data
pump (MDP) devices, provides the processing core
for a complete modem design. The OEM adds BIF
crystal, discrete components, and a telephone
line/telephone/voice/-TAM/analog cellular interface
circuit to complete the modem system. Table 1
shows the supported functions by product family.

Dialing, call progress, V.80, telephone line interface,
voice/TAM, speakerphone, and analog cellular
phone interface functions are supported and
controlled through the AT command set. Connection
to the host/DTE is supported by the PC Card
interface (Figure 1).

For U.S. operation, the modem can operate with a 1­relay data/fax/TAM DAA interface (Figure 2) or a 2­relay data/fax/TAM/V.61/Speakerphone DAA
interface
(Figure 3).

Host Modem Software

The host modem software performs two distinct
tasks:

1. General modem control which includes
command sets, fax Class 1, voice/TAM,
speakerphone, error correction, data
compression, cell phone drivers, and operating
system interface functions.

2. Modem data pump control. Binary executable
code controlling MDP operation is downloaded
as required during operation. Signal processing,
including data and fax modulation and
demodulation, as well as voice sampling, is
performed in the hardware DSP.

Configurations of the modem software are provided
to support the modem models listed in Table 1.

md-247F1-1BD-PC

ANALOG

CELLULAR/

TELEPHONE

LINE/

TELEPHONE

HANDSET/

AUDIO

INTERFACE

CIRCUIT

TELEPHONE
LINE

TEL HANDSET

MICROPHONE

HEADPHONE/
SPEAKER

MDM DIC ST

PCMCIA

BUS I/F

DEVICE
L5502-11:
128-TQFP

ANALOG
CELLULAR
PHONE

PC CARD

BUS

INTERFACE

MODEM

DATA PUMP

(MDP)

R6785:

144-PIN TQFP

OR

R6764:

100-PIN PQFP

FUNCTION 2

CONTROLLER

(OPTIONAL)

FUNCTION 2
INTERFACE

Figure 1. Block Diagram

V.90/K56flex PC Card Device Sets for Host-Controlled, Low Power Applications HCFL/56

Doc. No. 100586C

Conexant

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November 10, 1999 Proprietary Information

MDM

DIC ST

1156F1-4 ASF

MICROPHONE

TLPHN LIN/ CLLL PHN/DI

INTFC CICIT

TIP

SPEAKER1

SPEAKER2

DAA/CELL

CTRL1

OH/CTRL0

RINGIN

CELBS
CELBS
CELCLK
CELDATA
DAA/CELL
CTRL1
CTRL0

MIC AMP

TLPHN LIN/TLPHN HNDST

INTFC CICIT

SSI

BRDGE

HBRD

FRMR

TELEPHONE
LINE

CELT

OH

SURG
PROT

CELBS

CELBS

CELCLK

CELDATA

SPKM

RING

CELR

OH

RIN

MICV

TA2
TA1

AMP

SW

DAA/CELL

CELLULAR
PHONE

MICROPHONE
/SPEAKERS

SP MDLS

RNG
DET

Figure 2. Relay Data/Fax/TAM DAA Interface (U.S.)

MDM

DIC ST

(SP MDLS)

1054F1-3 AIF 2R-US

TLPHN LIN/TLPHN HANDST

INTRFAC CIRCUIT

HEADPHONE

MICROPHONE

LCS

RINGD

VOICE

OH

VC

BIAS

AMP/

SOUNDUCER

(OPTIONAL)

AUDI/HADPHN

INTRFAC CIRCUIT

SSI

BRDGE

OH RELA

HBRD

FRMR

TEL LINE

TEL HANDSET

VOICE

RELA

LCS

CUR
SRC

RNG
DET

SURG
PROT

MICV

SPK

HANDSET

HBRID

TELOUT

TELIN

TA1

RIN

TA2

Figure 3. Relay Data/Fax/TAM/Speakerphone DAA Interface (U.S.)