SI2434-C-FS Datasheet, PDF (1/2 Pages) List of Unclassifed Manufacturers – AT command set

ISOmodem^® Solutions ^{www.silabs.com/ISOmodem}
MODEM SOLUTIONS
DESCRIPTION
The ISOmodem family of products are complete modems ranging in speed from 2400 bps to
56,000 bps. Offered as a chipset with a 16-pin global line side device, the ISOmodem utilizes
Silicon Laboratories’ patented direct access arrangement (DAA) technology to provide a
programmable telephone line interface with an unparalleled level of integration. The universal
design can support all speeds and countries with a single Bill of Materials (BOM). These compact
solutions eliminate the need for a separate DSP, modem controller, codec, transformer, relay,
opto-isolators, clocking crystal and 2-4 wire hybrid. These devices are ideal for embedded data
modem and data/voice modem applications due to their flexibility, small footprint, and minimal
external components.
Si3018/10 Line Side
VCORE VI/O _{Si24xx System Side}
Ring Detect
To Host
Host
Interface
RAM
CLKIN/
XTAL1
XTAL0
SPI,
UART or
Parallel
ROM
PLL/
Clock
Logic
Controller/
DSP
SSI Digital Audio Interface
C1A
AC Termination
C2A
DC Termination
Aout
Aoutb
Codec Hybrid
BOM
4
SCLK
FSYNCH
SDI
SDO
Si3000 Voice Codec
(Optional)
TIP
BOM
RING
FEATURES
• AT command set
• ITU-T “V-dot” protocols up to 56 kbps
• Error correction and data compression
• Fast-connect protocols for POS
• Security industry protocols,
e.g. “Contact ID” and SIA
• SMS/MMS support including China
• D TMF generation and detection
• General purpose tone detectors
• Global Caller ID type 1 and type 2 decoding
• Integrated DAA
– Over 6 kV surge immunity
– On- and off- hook line voltage monitoring
– Parallel phone (intrusion) detection
– Over-current detection
• Supports handset, speakerphone and
answering machine functionality
• Advanced voice processing
– Acoustic Echo Cancellation
– Line Echo Cancellation
– Limiter for “Soft Clipping”
– Programmable filtering and pre-emphasis
• U ART, SPI or parallel host interface
• Flexible clock options including low-cost
32.768 kHz oscillator
• Low power; single 3.3 V supply
– 15 mw in wake-on-ring or wake-on-polarity
– 56 mW in normal operation
• Firmware upgradeable
• EEPROM interface
• Lead-free, RoHS-compliant packages
• Commercial or industrial temperature range
BENEFITS
• Smallest, most compact modem solution
• Lowest external component count and cost
• Minimal software development
• Proven performance and global compliance
APPLICATIONS
• Set-top boxes
• Point-of-sale terminals
• Security systems
• Videophones
• Medical monitoring equipment
EMBEDDED DATA MODEMS AND DATA/VOICE
MODEMS WITH INTEGRATED GLOBAL DAA
MORE INFORMATION AND DOCUMENTATION DOWNLOADS AT: silabs.com/ISOmodem