Features: · Data modem formats
· ITU-T, Bell
· 300 bps up to 56 kbps
· V.21,V.22, V.29 Fast Connect
· V.42, V.42bis, MNP2-5
· Automatic rate negotiation
· Type I and II caller ID decode
· No external ROM or RAM required
· UART or parallel interface
· AT command set support
· SMS / MMS support
· Integrated DAA
· Over 6000 V Capacitive isolation
· Parallel phone detect
· Globally-compliant line interface
· Overcurrent detection
· 27 MHz clock input
· 3.3 V power
· Firmware upgradeable
· EEPROM interface
· Lead-free, RoHS Compliant PackagesApplication· Set-top boxes
· Point-of-sale terminals
· Text/video telephones
· Digital video recorder
· Digital televisions
· Remote monitoringPinout
Specifications
| Parameter |
Symbol |
Value |
Unit |
| DC Supply Voltage |
VDD |
4.1 |
V |
Input Current, Si2457/34/15/04 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.
DescriptionThe ISOmodem® family of products is a complete modem ranging in speed from 56,000 bps to 2400 bps. Offered as a chipset with the Si2457,Si2434, Si2415, or Si2404 system-side device and the Si3018/10 lineside 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. These compact solutions Si2457,Si2434, Si2415, or Si2404 eliminate the need for a separate DSP, modem controller, codec, transformer, relay, opto-isolators, clocking crystal, and 2-4 wire hybrid. Available with a system-side packaging option of either a 16-pin SOIC or a 24-pin TSSOP, Si2457,Si2434, Si2415, or Si2404 are ideal for embedded modem applications due to their flexibility, small footprint, and minimal external component count.
Si2457 Data Sheet
