Si2457/34/15/04 V.90, V.34, V.32BIS, V.22BIS ISOMODEM WITH GLOBAL DAA Features This data sheet applies to Integrated DAA Si2457/34/15/04 Revision D Over 6000 V capacitive isolation Data modem formats Parallel phone detect ITU-T, Bell Globally-compliant line 300 bps up to 56 kbps interface V.21,V.22, V.29 Fast Connect Overcurrent detection V.44, V.42, V.42bis, MNP2-5 AT command set support Automatic rate negotiation SMS / MMS support Type I and II caller ID decode Ordering Information Firmware upgradeable No external ROM or RAM required This data sheet is valid only for EEPROM interface UART, SPI, or parallel interface those chipset combinations listed Lead-free, RoHS-compliant Flexible clock options on page 50. packages Low-cost 32.768 kHz oscillator 4.915 MHz oscillator Commercial or industrial 27 MHz clock input temperature range Pin Assignments DTMF detection/generation Applications Si2457/34/15/04 (16-Pin Option) Set-top boxes Digital video recorder 1 CLKIN/XTALI 16 SS/RTS Point-of-sale terminals Digital televisions 2 XTALO 15 DCD RI 3 Text / video telephones Remote monitoring 14 ESC VD 4 13 V A MISO/RXD 5 12 GND Description MOSI/TXD 6 11 INT SCLK/CTS 7 10 C1A RESET 9 8 C2A The 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, Si2457/34/15/04 Si2415, or Si2404 system-side device and the Si3018/10 line-side device, (24-Pin Option) the ISOmodem utilizes Skyworks Solutions patented direct access CLKIN/XTALI 1 24 SDO/EECLK/D5 arrangement (DAA) technology to provide a programmable telephone line XTALO 2 23 DCD/D4 CLKOUT/EECS/A0 3 22 ESC/D3 interface with an unparalleled level of integration. These compact solutions FSYNC/D6 4 21 VD3.3 eliminate the need for a separate DSP, modem controller, codec, VD3.3 5 20 GND transformer, relay, opto-isolators, clocking crystal, and 2-4 wire hybrid. 6 19 VDB GND 7 18 VDA SDI/EESD/D2 Available with a system-side packaging option of either a 16-pin SOIC or a SS/RTS/D7 8 17 RI/D1 24-pin TSSOP, these devices are ideal for embedded modem applications 16 MISO/RXD/RD 9 INT/DO due to their flexibility, small footprint, and minimal external component 15 AOUT/INT MOSI/TXD/WR 10 14 C1A SCLK/CTS/CS 11 count. 13 RESET 12 C2A System Block Diagram Si3018/10 QE 1 DCT2 16 DCT 2 15 IGND RX 3 14 DCT3 Si24xx Si3018 Global IB 4 13 QB Tip Host Host Interface Telco System Line DAA Ring C1B 5 12 QE2 CPU Side Side BOM C2B 6 11 SC VREG 7 10 VREG2 RNG1 8 9 RNG2 UART SPI Capacitive Parallel Isolation Barrier Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com Rev. 1.3 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice August 16, 2021Si2457/34/15/04 2 Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com Rev. 1.3 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice August 16, 2021