SI2435-D2-FT

S i 24 3 5/ S i 2 41 7 V. 3 4, V.17 F A X I S O M O D E M ® G L O B A L DAA WITH Features Fax modem formats Integrated DAA Over 6000 V capacitive isolation V.29, V.27ter, V.17, V.21 channel 2 V.34 half duplex Automatic rate negotiation Parallel phone detect Globally-compliant line interface Supports type I and II caller ID No external ROM or RAM required Distinctive ring detection UART or parallel interface Lead-free/RoHS-compliant packages available Overcurrent detection Firmware upgradeable DTMF detection/generation Data/Fax discriminator Class1 AT command set Applications Fax machines Fax telephones Ordering Information This data sheet is valid only for those chipset combinations listed on page 61. Multifunctional printers Fax server Pin Assignments Description Si2435/17 The Si2435 and Si2417 are complete two-chip fax modems ranging in speed from 33,600 bps to 14,400 bps. The ISOmodem chipsets utilize Silicon Laboratories’ third-generation direct access arrangement (DAA) to provide a globally-programmable telephone line interface with an unparalleled level of integration. Available in two small packages, the compact solutions eliminate the need for a separate DSP, modem controller, codec, isolation transformer, relay, opto-isolators, and 2–4 wire hybrid. The ISOmodem provides conventional fax formats with connect rates of up to 33,600 bps over the Public Switched Telephone Network (PSTN). The Si2435 and Si2417 are ideal for fax modem applications due to their global compliance, small footprint, and minimal external component count. CLKIN/XTALI 1 24 SDO/D5 XTALO 2 23 CLKOUT/A0 3 22 DCD/D4 ESC/D3 FSYNC/D6 4 21 VD3.3 VD3.3 5 20 GND GND 6 19 VDB VDA 7 18 SDI/D2 RTS/D7 8 17 RI/D1 INT/DO RXD/RD 9 16 TXD/WR 10 15 AOUT/INT CTS/CS 11 14 C1A RESET 12 13 C2A Si3018 Functional Block Diagram QE DCT CLKIN/XTALI CLKOUT RXD TXD CTS RTS DCD ESC RI PLL Clocking C1B C2B RAM/ROM VREG RNG1 Data Bus Serial Interface Microcontroller DSP INT CS WR RD A0 D0-D7 RX IB XTALO Parallel Interface DAA Interface To Phone Line AOUT 1 16 DCT2 2 3 15 IGND 14 4 DCT3 QB 5 6 7 13 12 QE2 11 SC 10 8 9 VREG2 RNG2 U.S. Patent #5,870,046 U.S. Patent #6,061,009 Other patents pending RESET Confidential Rev. 0.7 9/05 Copyright © 2005 by Silicon Laboratories Si2435/Si2417 This information applies to a product under development. Its characteristics and specifications are subject to change without notice. Silicon Laboratories Confidential. Information contained herein is covered under non-disclosure agreement (NDA). S i 24 3 5/ S i 2 41 7 2 Confidential Rev. 0.7 Si 243 5/Si 24 17 T A B L E O F C O N T E N TS Section Page 1. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2. Typical Application Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3. Bill of Materials: Si2435/17 Chipset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 4. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.1. Digital Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 4.2. Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.3. Parallel Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 4.4. Command State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 4.5. Data State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.6. Data Mode (+FCLASS = 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 4.7. Fax Mode (+FCLASS = 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4.8. Voice Mode (+FCLASS = 8) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4.9. V.8 Call Establishment (Si2435 Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4.10. Data / Fax / Voice Discriminator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4.11. DTMF Detection / Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4.12. Caller ID Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 4.13. Parallel Phone Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4.14. Overcurrent Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4.15. Global Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4.16. Clocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4.17. Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4.18. Firmware Upgrades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 4.19. Codec Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 4.20. AT Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 5. S-Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 6. User-Access Registers (U-Registers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 6.1. Bit-Mapped U-Register Detail (defaults in bold) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 7. Parallel Interface Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56 8. Pin Descriptions: Si2435/17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 9. Pin Descriptions: Si3018 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60 10. Ordering Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 11. Package Outline: 24-Pin TSSOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 12. Package Outline: 16-Pin SOIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 Confidential Rev. 0.7 3 S i 24 3 5/ S i 2 41 7 1. Electrical Specifications Table 1. Recommended Operating Conditions Parameter1 Symbol Test Condition Min2 Typ Max2 Unit TA F-Grade 0 25 70 °C 3.0 3.3 3.6 V Ambient Temperature Si2435/17 Supply Voltage, Digital3 VD Notes: 1. The Si2435/17 specifications are guaranteed when the typical application circuit (including component tolerance) and any Si2435/17 and any Si3018 are used. See "2. Typical Application Schematic" on page 10. 2. All minimum and maximum specifications are guaranteed and apply across the recommended operating conditions. Typical values apply at nominal supply voltages and an operating temperature of 25 °C unless otherwise stated. 3. The digital supply, VD, operates from 3.0 to 3.6 V. The Si2435/17 interface supports 5 V logic (CLKIN/XTALI supports 3.3 V logic only). Table 2. Loop Characteristics (VD = 3.0 to 3.6 V, TA = 0 to 70 °C for F-Grade) Parameter Symbol DC Termination Voltage VTR DC Termination Voltage VTR DC Termination Voltage VTR DC Termination Voltage VTR DC Termination Voltage VTR DC Termination Voltage VTR DC Termination Voltage VTR On-Hook Leakage Current Operating Loop Current Operating Loop Current DC Ring Current ILK ILP ILP Ring Detect Voltage2 Ring Detect Voltage2 Ring Frequency Ringer Equivalence Number VRD VRD FR REN Test Condition ILIM1 IL = 20 mA, =0 DCV = 00, MINI = 11, DCR = 0 IL = 120 mA, ILIM = 0 DCV = 00, MINI = 11, DCR = 0 IL = 20 mA, ILIM = 0 DCV = 11, MINI = 00, DCR = 0 IL = 120 mA, ILIM = 0 DCV = 11, MINI = 00, DCR = 0 IL = 20 mA, ILIM = 1 DCV = 11, MINI = 00, DCR = 0 IL = 60 mA, ILIM = 1 DCV = 11, MINI = 00, DCR = 0 IL = 50 mA, ILIM = 1 DCV = 11, MINI = 00, DCR = 0 VTR = –48 V MINI = 00, ILIM = 0 MINI = 00, ILIM = 1 DC current flowing through ring detection circuitry RT = 0 RT = 1 Min Typ Max Unit — — 6.0 V 9 — — V — — 7.5 V 9 — — V — — 7.5 V 40 — — V — — 40 V — 10 10 — — — — 1.5 5 120 60 3 µA mA mA µA 12 18 15 — 15 21 — — 18 25 68 0.2 VRMS VRMS Hz Notes: 1. ILIM = U67, bit 9; DCV = U67, bits 3:2; MINI = U67, bits 13:12; DCR = U67, bit 7; RT = U67, bit 0. 2. The ring signal is guaranteed to not be detected below the minimum. The ring signal is guaranteed to be detected above the maximum. 4 Confidential Rev. 0.7 Si 243 5/Si 24 17 TIP + 600 Si3018 IL VTR 10 µF RING – Figure 1. Test Circuit for Loop Characteristics Table 3. DC Characteristics, VD = 3.0 to 3.6 V (VD = 3.0 to 3.6 V, TA = 0 to 70 °C for F-Grade) Parameter Symbol Test Condition Min Typ Max Unit High Level Input Voltage VIH 2.0 — — 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 IL –10 — 10 µA RPU 50 125 200 k — 26 35 mA — 6 — mA — 80 — µA Input Leakage Current Pullup Resistance Pins 3, 4, 9, 11, 15, 16, 17, 18, 23, 24 Total Supply Current* ID Total Supply Current, Wake-on-Ring* Total Supply Current, Powerdown * VD3.3 pin ID ID PDN = 1 *Note: All inputs at 0 or VD. All inputs held static except clock and all outputs unloaded (Static IOUT = 0 mA). Confidential Rev. 0.7 5 S i 24 3 5/ S i 2 41 7 Table 4. AC Characteristics (VD = 3.0 to 3.6 V, TA = 0 to 70 °C for F-Grade, Fs = 8 kHz) Parameter Symbol Test Condition Min Typ Max Unit Clock Input Frequency FXTL default — 4.9152 — MHz Clock Input Frequency FXTL resistor between pin 23 and GND — 27 — MHz Receive Frequency Response Low –3 dBFS Corner, FILT = 0 — 5 — Hz Receive Frequency Response Low –3 dBFS Corner, FILT = 1 — 200 — Hz VFS — 1.1 — VPEAK Receive Full Scale Level1,2 VFS — 1.1 — VPEAK Dynamic Range3 DR ILIM = 0, DCV = 11, MINI = 00 DCR = 0, IL = 100 mA — 80 — dB Dynamic Range3 DR ILIM = 0, DCV = 00, MINI = 11 DCR = 0, IL = 20 mA — 80 — dB Dynamic Range3 DR ILIM = 1, DCV = 11, MINI = 00 DCR = 0, IL = 50 mA — 80 — dB Transmit Total Harmonic Distortion4 THD ILIM = 0, DCV = 11, MINI = 00 DCR = 0, IL = 100 mA — –72 — dB Transmit Total Harmonic Distortion4 THD ILIM = 0, DCV = 00, MINI = 11 DCR = 0, IL = 20 mA — –78 — dB Receive Total Harmonic Distortion4 THD ILIM = 0, DCV = 00, MINI = 11 DCR = 0, IL = 20 mA — –78 — dB Receive Total Harmonic Distortion4 THD ILIM = 1,DCV = 11, MINI=00 DCR = 0, IL = 50 mA — –78 — dB DRCID VIN = 1 kHz, –13 dBm — 50 — dB Transmit Full Scale Level1 Dynamic Range (Caller ID Mode)