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PDF 20437-11 Data sheet ( Hoja de datos )

Número de pieza 20437-11
Descripción SmartACFLModem
Fabricantes ETC 
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No Preview Available ! 20437-11 Hoja de datos, Descripción, Manual

SmartACFLModem
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 ConexantSmartACFL 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.
Features
V.90 data/V.17 fax modem
SmartDAA technology
System side powered DAA operates
under poor line current supply
conditions
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
requirements
Caller ID detection
Data/Fax/Voice call discrimination
Hardware-based modem controller
Hardware-based digital signal
processor (DSP)
Voice/full-duplex speakerphone mode
(S models)
V.70 DSVD using optional RCDSVD
SCP (S models)
World-wide operation
Industry standard communication
commands
Selectable parallel/serial interface with
speeds up to 230.4 kbps
Parallel 16550A UART-compatible
interface
Serial ITU-T V.24 (EIA/TIA-232-E)
V.80 synchronous access mode
Direct mode (serial interface)
Synchronous data mode
(serial interface)
V.22 bis fast connect
Analog cellular direct connect
GSM direct connect
Sleep mode
Thin packages support low profile
designs
+3.3V operation with +5V tolerant
digital inputs
Data Sheet (Preliminary)
Conexant Proprietary Information
Doc. No.100444A
December 21, 1999

1 page




20437-11 pdf
V.90/K56flex Modem Device Sets with SmartDAA Technology for Low Power Applications
SmartACFL
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 up to 56 kbps.
Asymmetrical data transmission supports sending
data up to V.34 rates; this mode can fallback to full-
duplex V.34 mode, and to lower rates as dictated by
line conditions.
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.42 bis/MNP 5)
maximize data transfer integrity and boost average
data throughput up to 230.4 kbps. Non-error-
correcting mode is also supported.
Data modem modes perform complete handshake
and data rate negotiations. Using V.34 modulation to
optimize modem configuration for line conditions, the
modem can connect at the highest data rate that the
channel can support from 33600 bps down to 2400
bps with automatic fallback. Automode operation in
V.34 is provided in accordance with PN3320 and in
V.32 bis in accordance with PN2330. All tone and
pattern detection functions required by the applicable
ITU or Bell standard are supported.
In V.32 bis mode, the modem operates at line
speeds up to 14.4 kbps.
In V.22 bis fast connect mode, the modem can
connect at 2400 bps with a very short training time,
which is very efficient for small data transfers.
In fax modem mode, the modem can operate in 2-
wire, half-duplex, synchronous mode and can
support Group 3 facsimile send and receive speeds
of 14400, 12000, 9600, 7200, 4800, and 2400 bps.
Fax data transmission and reception performed by
the modem are controlled and monitored through the
EIA/TIA-578 Fax Class 1, T.30 Fax Class 1.0, or Fax
Class 2 command interface. Full HDLC formatting,
zero insertion/deletion, and CRC
generation/checking are provided. Both transmit and
receive fax data are buffered within the modem. Data
transfer to and from DTE is flow controlled by
XON/XOFF and RTS/CTS.
Synchronous Access Mode (SAM) - Video
Conferencing
V.80 Synchronous Access Mode between the
modem and the host/DTE is provided for host-
controlled communication protocols, e.g., H.324
video conferencing applications.
Voice-call-first (VCF) before switching to a
videophone call is also supported.
Worldwide Operation
The modem operates in US/Japan/Canada/TBR21
and other countries. Country dependent parameters
for functions such as dialing, carrier transmit level,
calling tone, call progress tone detection, answer
tone detection, blacklisting, and relay control are
programmable by ConfigurACE II for Windows.
SmartDAA technology allows a single PCB design
and single BOM to be homologated worldwide.
Advanced features such as digital PBX protection
are also supported.
TAM Mode
TAM Mode features include 8-bit µ-Law, A-Law, and
linear coding at 8 kHz sample rate. Full-duplex voice
supports concurrent voice receive and transmit.
Tone detection and generation, call discrimination,
and concurrent DTMF detection are also supported.
ADPCM (4-bit IMA) coding is supported to meet
Microsoft WHQL logo requirements.
TAM Mode is supported by three submodes:
1. Online Voice Command Mode supports
connection to the telephone line or, for the S
model, a handset.
2. Voice Receive Mode supports recording voice or
audio data input from the telephone line or, for
the S model, a microphone/handset.
3. Voice Transmit Mode supports playback of voice
or audio data to the telephone line or, for the S
model, a speaker/handset.
Doc. No. 100444A
Conexant
Proprietary Information
5

5 Page





20437-11 arduino
V.90/K56flex Modem Device Sets with SmartDAA Technology for Low Power Applications
SmartACFL
NC
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~MRES
~RES
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~WRITE
~READ
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~HCS
GND
XTLI
VDD
XTLO
GND
NC
~STPMODE
HD0
HD1
HD2
HD3
HD4
HD5
HD6
HD7
NC
~NMI
HA0
HA1
1
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102 ~ROMSEL
101 ~DPSEL
100 A16
99 A15
98 A14
97 A13
96 A12
95 A11
94 A10
93 A9
92 A8
91 VDD
90 A7
89 A6
88 A5
87 A4
86 A3
85 A2
84 A1
83 A0
82 TDI
81 TDO
80 TMS
79 TRSTP
78 TCK
77 GND
76 D7
75 D6
74 D5
73 D4
72 D3
71 D2
70 D1
69 D0
68 ~TST
67 NVMCLK/TXDCLK
66 GSMTXD
65 DAA/GSM
Cellular
GSM
RCDSVD
Firmware option
1156F3-5 PO-MCU-Par-128T
Figure 3. MCU Pin Signals - Parallel Host Interface - 128-Pin TQFP
Doc. No. 100444A
Conexant
Proprietary Information
11

11 Page







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