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The Si2400 ISOmodem™ is a complete modem chipset with integrated direct access arrangement (DAA) that provides a programmable line interface to meet global telephone line requirements. Available in two 16- pin small outline (SOIC) packages, it eliminates the need for a separate DSP data pump, modem controller, analog front end (AFE), isolation transformer, relays, opto-isolators, 2- to 4-wire hybrid, and voice codec.The Si2400 is ideal for embedded modem applications due to its small board space, low power consumption, and global compliance.
SI2400 Maximum Ratings
Parameter
Symbol
Value
Unit
DC Supply Voltage
VDD
0.5 to 6.0
V
Input Current, Si2401 Digital Input Pins
IIN
±10
mA
Digital Input Voltage
VIND
0.3 to 5.3
V
CLKIN/XTALI Input Voltage
VXIND
0.3 to (VD + 0.3)
V
Operating Temperature Range
TA
10 to 100
Storage Temperature Range
TSTG
40 to 150
Note: Permanent device damage may occur if the above Absolute Maximum Ratings are exceeded. Functional operation should be restricted to the conditions as specified in the operational sections of this data sheet. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
SI2400 Features
·Data Modem Formats · 2400 bps: V.22bis · 1200 bps: V.22, V.23, Bell 212A · 300 bps: V.21, Bell 103 ·V.25 Fast Connect and V.23 Reversing · SIA and other security protocols ·Caller ID Detection and Decode · DTMF Tone Gen./Detection ·3.3 V or 5.0 V Power ·UART with Flow Control ·Integrated DAA · Capacitive Isolation · Parallel Phone Detect · Globally Compliant Line Interface · Overcurrent Protection ·AT Command Set Support ·Integrated Voice Codec ·PCM Data Pass-Through Mode ·HDLC Framing in Hardware ·Call Progress Support
SI2400 Typical Application
· Set Top Boxes · Power Meters · Security Systems · ATM Terminals · Medical Monitoring · Point-of-Sale