PDF SI2400-KS Data sheet ( Hoja de datos )

Número de pieza	SI2400-KS
Descripción	V.22BIS ISOMODEM WITH INTEGRATED GLOBAL DAA
Fabricantes	ETC
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No Preview Available ! Si2400 V. 2 2 B I S I S O M O D E M ™ W I T H I N T E G R A T E D G L O B A L D A A Features ! Data Modem Formats ! Integrated DAA " 2400 bps: V.22bis " Capacitive Isolation " 1200 bps: V.22, V.23, Bell 212A " Parallel Phone Detect " 300 bps: V.21, Bell 103 " Globally Compliant Line Interface " V.25 Fast Connect and V.23 Reversing " Overcurrent Protection " SIA and other security protocols ! AT Command Set Support ! Caller ID Detection and Decode ! Integrated Voice Codec ! DTMF Tone Gen./Detection ! PCM Data Pass-Through Mode ! 3.3 V or 5.0 V Power ! HDLC Framing in Hardware ! UART with Flow Control ! Call Progress Support Applications ! Set Top Boxes ! Power Meters ! Security Systems ! Medical Monitoring ! ATM Terminals ! Point-of-Sale Description 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. Functional Block Diagram TXD RXD RESET EOFR/GPIO1 AIN/GPIO2 ESC/GPIO3 ALERT/GPIO4 CTS CLKOUT XTALI XTALO Si2400 µ Controller (AT Decoder Call Progress) Control Interface DSP (Data Pump) Clock Interface Audio Codec AOUT Si3015 Hybrid and DC Termination Ring Detect Off-Hook RX FILT FILT2 REF DCT VREG2 REXT REXT2 RNG1 RNG2 QB QE QE2 Ordering Information See page 71. Pin Assignments Si2400 XTALI XTALO CLKOUT VD TXD RXD CTS RESET 1 16 2 15 3 14 4 13 5 12 6 11 7 10 89 Si3015 EOFR/GPIO1 AIN/GPIO2 ESC/GPIO3 ISOB GND C1A ALERT/GPIO4 AOUT QE2 DCT IGND C1B RNG1 RNG2 QB QE 1 2 3 4 5 6 7 8 16 FILT2 15 FILT 14 RX 13 REXT 12 REXT2 11 REF 10 VREG2 9 VREG Patents pending Rev. 0.95 4/00 Copyright © 2000 by Silicon Laboratories Si2400-DS095 1 page Si2400 Table 3. DC Characteristics (VD = 4.75 to 5.25 V, TA = 0 to 70°C for K-Grade, TA = –40 to 85°C for B-Grade) Parameter Symbol Test Condition Min Typ Max Unit High Level Input Voltage VIH 3.5 — — V Low Level Input Voltage VIL — — 0.8 V High Level Output Voltage VOH IO = –2 mA 2.4 — — V Low Level Output Voltage VOL IO = 2 mA — — 0.4 V Low Level Output Voltage, GPIO1–4 VOL IO = 40 mA — — 0.6 V Input Leakage Current IL –10 — 10 µA Power Supply Current, Digital* ID VD pin — 28 32 mA Power Supply Current, DSP Power Down* ID VD pin — 16 19 mA Power Supply Current, Wake-On-Ring (ATZ) ID VD pin — 10 11 mA Power Supply Current, Total Power Down ID VD pin — 60 105 µA Note: Specifications assume MCKR = 0 (default). Typical value is 4 mA lower when MCKR = 1 and 6 mA lower when MCKR = 2,3. Measurements are taken with inputs at rails and no loads on outputs. Table 4. DC Characteristics (VD = 3.0 to 3.6 V, TA = 0 to 70°C for K-Grade, TA = –40 to 85°C for B-Grade) Parameter Symbol Test Condition Min Typ Max Unit High Level Input Voltage VIH 2.1 — — V Low Level Input Voltage VIL — — 0.8 V High Level Output Voltage VOH IO = –2 mA 2.4 — — V Low Level Output Voltage VOL IO = 2 mA — — 0.35 V Low Level Output Voltage, GPIO1–4 VOL IO = 20 mA — — 0.6 V Input Leakage Current IL –10 — 10 µA Power Supply Current, Digital ID VD pin — 15 21 mA Power Supply Current, DSP Power Down ID VD pin — 9 14 mA Power Supply Current, Wake-On-Ring ID VD pin —5 8 mA Power Supply Current, Total Power Down ID VD pin — 40 55 µA Note: Specifications assume MCKR = 0 (default). Typical value is 2 mA lower when MCKR = 1 and 3 mA lower when MCKR = 2,3. Measurements are taken with inputs at rails and no loads on outputs. TIP + 600 Ω Si3015 VTR – RING 10 µF IL Figure 1. Test Circuit for Loop Characteristics Rev. 0.95 5 5 Page Analog Input/Output Si2400 Figure 4 illustrates an optional application circuit to support the analog output capability of the Si2400 for voice monitoring purposes. AOUT C2 R3 C6 R1 +5V 36 2 5 U1 4 C4 C5 C3 R2 Speaker Figure 4. Optional Connection to AOUT for a Monitoring Speaker ‘ Table 10. Component Values—Optional Connection to AOUT Symbol Value C2, C3, C5 0.1 µF, 16 V, ±20% C4 100 µF, 16 V, Elec. ±20% C6 820 pF, 16 V, ±20% R1 10 kΩ, 1/10 W, ±5% R2 10 Ω, 1/10 W, ±5% R3 47 kΩ, 1/10 W, ±5% U1 LM386 Si2400 Analog Input AIN/GPIO 0.1 µF 1 Vrms Figure 5. Analog Input Circuit Rev. 0.95 11 11 Page

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