V-Tec AT16/C5 Spécifications Page 1

Rev. 1.3 8/06 Copyright © 2006 by Silicon Laboratories Si2400Si2400V.22BIS ISOMODEM® WITH INTEGRATED GLOBAL DAAFeaturesApplicationsDescriptionThe Si24

Si240010 Rev. 1.32. Typical Application SchematicZ1R1 5Refer to AN48 for Layout GuidelinesPlease submit layout to Silicon Labsfor review prior to PC

Si2400Rev. 1.3 113. Bill of MaterialsComponent Value SuppliersC1,C41150 pF, 3 kV, X7R,±20% Novacap, Venkel, Johanson, Murata, PanasonicC3,C13 0.22 µF

Si240012 Rev. 1.3RV1 Sidactor, 275 V, 100 A Teccor, ST Microelectronics, Microsemi, TIRV28270 V, MOV Not InstalledR22402 Ω, 1/16 W, ±1% Venkel, Panas

Si2400Rev. 1.3 134. Analog Input/OutputFigure 4 illustrates an optional application circuit to support the analog output capability of the Si2400 for

Si240014 Rev. 1.35. Functional DescriptionThe Si2400 ISOmodem is a complete modem chipsetwith integrated direct access arrangement (DAA) thatprovides

Si2400Rev. 1.3 155.1. Digital InterfaceThe Si2400 has a universal asynchronous serialinterface (UART) compatible with standardmicrocontroller serial

Si240016 Rev. 1.3 Use the ESC pin—To program the GPIO3 pin to function as an ESCAPE input, set GPIO3 SE2[5:4] = 11b. In this setting, a positive edge

Si2400Rev. 1.3 175.3. Low Power Modes The Si2400 has three low power modes. These aredescribed below:  DSP Powerdown. The DSP processor can be power

Si240018 Rev. 1.35.5. Parallel Phone DetectionThe Si2400 has the ability to detect a phone or otherdevice that is off hook on a shared line. This ena

Si2400Rev. 1.3 195.5.2. Reporting of an On-Hook IntrusionThe reporting of an on-hook intrusion is the samewhether or not the differential or absolute

Si24002 Rev. 1.3

Si240020 Rev. 1.35.5.5. Differential Algorithm #2This differential algorithm has features added toDifferential Algorithm #1. The additional features a

Si2400Rev. 1.3 21result codes are suppressed, and the ALERT pin is theonly method of reporting an intrusion to the host.The “i” and “I” result codes m

Si240022 Rev. 1.3mode, which is similar to the current-limiting mode buthas reduced hookswitch drive. This feature allows theSi2400 to remain off-hook

Si2400Rev. 1.3 235.10. Tone Generation and Tone DetectionThe Si2400 provides comprehensive and flexible tonegeneration and detection. This includes a

Si240024 Rev. 1.3Figure 10. Signal RoutingData Mode (DRT = 00b)Si3015Si2400DSPA.DSPOUTDSPINAOUT(Call Progress)AINVoice Mode (DRT = 01b)Si3015Si2400DS

Si2400Rev. 1.3 255.12. Analog CodecThe Si2400 features an on-chip, voice quality codec.The codec consists of a digital to analog converter(DAC) and a

Si240026 Rev. 1.35.13.2. Modem in slave modeConfigure GPIO4 as ALERT (S2E[7:6] [GPIO4] = 11b).The Si2400 performs a reverse turnaround when itdetects

Si2400Rev. 1.3 27checksum does not match, the Si2400 echoes “e” (error). Additionally, if the Si2400 detects an abort (seven or more contiguous ones),

Si240028 Rev. 1.35.16. Clock Generation SubsystemThe Si2400 contains an on-chip clock generator. Usinga single master clock input, the Si2400 can gen

Si2400Rev. 1.3 296. AT Command SetThe controller provides several vital functions includingAT command parsing, DAA control, connect sequencecontrol,

Si2400Rev. 1.3 3TABLE OF CONTENTSSection Page1. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Si240030 Rev. 1.36.3. AT Command Set DescriptionAAnswerThe “A” command makes the modem go off hook andrespond to an incoming call. This command is to

Si2400Rev. 1.3 31This command causes the modem to echo the chiprevision for the Si2400 device. 0 = Revision A1 = Revision B2 = Revision C, etc.M Speak

Si240032 Rev. 1.3must be disabled by setting S14[7] (MRCD) = 1b whenusing this command to ensure the host does notconfuse a result code with data. w##

Si2400Rev. 1.3 336.5.1. A0Answer and transmit the AIN analog input signal on thetelephone line and connect the phone line receivesignal to the AOUT pi

Si240034 Rev. 1.3!<message 3><CR>K...K!<message n><CR>The modem dials the phone number and echoes “r”(ring), “b” (busy), and “

Si2400Rev. 1.3 35answer (e.g. 500 = 01) or Bellcore CID will functionnormally.Basic CommandATDT<phone number>!7<tone pulse digits 0-9, B-F>

Si240036 Rev. 1.36.5.7. Intermessage TimingIntermessage timing is accomplished in three ways,relative to the end of the previous message (“,” resultco

Si2400Rev. 1.3 376.6. Modem Result Codes and Call ProgressTable 20 shows the modem result codes which can beused in call progress monitoring. All res

Si240038 Rev. 1.3be programmed to search for individual tones. The fourdetectors have center frequencies which can be set byregisters UDFD1–4 (see Tab

Si2400Rev. 1.3 39At this point, users may program their own algorithm tomonitor the detected tones. If the host wishes to dial, itshould do so by blin

Si24004 Rev. 1.31. Electrical SpecificationsTable 1. Recommended Operating ConditionsParameter1Symbol Test ConditionMin2TypMax2UnitAmbient Temperatu

Si240040 Rev. 1.37. Low Level DSP ControlAlthough not necessary for most applications, the DSPlow-level control functions are available for users wit

Si2400Rev. 1.3 41Table 25 defines the relationship between SE5, SE6, and SE8.0x000E UDFSL Sensitivity setting for UDFD1–4 detectors, default = –43 dBm

Si240042 Rev. 1.37.2. Call Progress FiltersThe programmable call progress filter coefficients arelocated in DSP address locations 0x0010 through0x002

Si2400Rev. 1.3 438. S RegistersAny register not documented here is reserved and should not be written. Bold selection in bit-mapped registersindicate

Si240044 Rev. 1.3S17 0x17 BTOF Busy tone off. Time that the busy tone must be off (10 ms units) for busy tone detector.0x32S18 0x18 BTOD Busy tone de

Si2400Rev. 1.3 45S26 0x26 VTSOV.22bis 1200 bps scrambled ones length. Minimum length of time for transmission of 1200 bps scrambled binary ones by a c

Si240046 Rev. 1.3S30 0x30 FCDH FSK connection delay high. Amount of time delay added between end of answer tone handshake and actual modem con-nectio

Si2400Rev. 1.3 47SDF 0xDF DGSR This is a bit mapped register.10x00SE0 0xE0 CF1 This is a bit mapped register.10x22SE1 0xE1 CLK1 This is a bit mapped r

Si240048 Rev. 1.3Table 28. Bit Mapped Register Summary “S” RegisterRegister Address (hex)Register NameBit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

Si2400Rev. 1.3 49SEB 0xEB TPDPDDE0000_0000SF0 0xF0 DAA0LM OFHK0000_0000SF1 0xF1 DAA1BTE PDN PDL HBE0001_1100SF2 0xF2 DAA2FDT0000_0000SF4 0xF4 DAA4SQLH

Si2400Rev. 1.3 5Table 2. Loop Characteristics(VD = 3.0 to 5.25 V, TA = 0 to 70°C for K-Grade and –40 to 85°C for B-Grade, See Figure 1)Parameter Symbo

Si240050 Rev. 1.3Reset settings = 0000_0001b (0x01) S07 (MF1). Modem Functions 1Bit D7 D6 D5 D4 D3 D2 D1 D0NameHDEN BD V23R V23T BAUD CCITT FSKType R

Si2400Rev. 1.3 51Reset settings = 0000_0000b (0x00)S0C (MF2). Modem Functions 2BitD7D6D5D4D3D2D1D0NameCDE CIDM 9BF BDL MLB MCHType R/W R/W R/W R/W R/W

Si240052 Rev. 1.3Reset settings = 0100_1000b (0x48)Reset settings = 0100_0000b (0x40)S11 (ONHI). On-Hook IntrusionBitD7D6D5 D4 D3D2 D1 D0NameDVL AVLT

Si2400Rev. 1.3 53Reset settings = 0001_0000b (0x10)S13 (MF3). Modem Functions 3BitD7D6D5D4D3D2D1D0NameJID BTID OFHE OFHD ONHD CIDB CIDU PCMType R/W R/

Si240054 Rev. 1.3Reset settings = 0000_0000b (0x00)S14 (MF4). Modem Functions 4BitD7D6D5D4D3D2D1D0NameMRCD UDF TEO AOC OD NLD IND RDType R/W R/W R/W

Si2400Rev. 1.3 55Reset settings = 1000_0100b (0x84)S15 (MLC). Modem Link ControlBitD7D6D5D4D3D2D1D0NameATPRE VCTE FHGE ENGE STB BDA NBEType R/W R/W R/

Si240056 Rev. 1.3Reset settings = 0010_1101b (0x2D)S1F (ARM3). Alarm 3 (!7 Mode Only)BitD7D6D5D4D3D2D1D0NameKOT IMTType R/W R/WBit Name Function7:5 K

Si2400Rev. 1.3 57Reset settings = 1000_0000b (0x80)S33 (MDMO). Modem OverrideBitD7D6D5D4D3D2D1D0NameDON DOF NAT TSACType R/W R/W R/W R/WBit Name Funct

Si240058 Rev. 1.3Reset settings = 0011_0000b (0x30)S36 (ARM1). Alarm 1 (!7 Mode Only)BitD7D6D5D4D3D2D1D0NamePOF PON IDKT ITType R/W R/W R/W R/WBit Na

Si2400Rev. 1.3 59Reset settings = 0011_1000b (0x38)S38 (ARM2). Alarm 2 (!7 Mode Only)BitD7D6D5D4D3D2D1D0NameDBD DCF HMT HFType R/W R/W R/W R/WBit Name

Si24006 Rev. 1.3Table 3. DC Characteristics1(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 Conditi

Si240060 Rev. 1.3Reset settings = 0000_0100b (0x04)S3C (CIDG). Caller ID GainBitD7D6D5D4D3D2D1D0NameCIDGType R/WBit Name Function7:3 Reserved Read re

Si2400Rev. 1.3 61Reset settings = 0000_0000b (0x00)S62 (RC). Result Codes OverrideBitD7D6D5D4D3D2D1D0NameCLD OCR LLC WOR FLS IR NLR RRType R/W R/W R/W

Si240062 Rev. 1.3Reset settings = 0000_0000b (0x00)Reset settings = 0000_0000b (0x00)S82 (IST). IntrusionBitD7D6D5D4D3D2D1D0NameIST LCLD IBType R/W R

Si2400Rev. 1.3 63Reset settings = 0010_0010b (0x22)SE0 (CF1). Chip Functions 1BitD7D6D5D4D3D2D1D0NameICTS ND SDType R/W R/W R/WBit Name Function7:6 Re

Si240064 Rev. 1.3Reset settings = 0000_0111b (0x07)SE1 (CLK1). Clock 1BitD7D6D5D4D3D2D1D0NameMCKR CLKDType R/W R/WBit Name Function7:6 MCKR Microcont

Si2400Rev. 1.3 65Reset settings = 0000_0000b (0x00)SE2 (GPIO). General Purpose Input/OutputBitD7D6D5D4D3D2D1D0NameGPIO4 GPIO3 GPIO2 GPIO1Type R/W R/W

Si240066 Rev. 1.3Reset settings = 0000_0000b (0x00)SE3 (GPD). GPIO DataBitD7D6D5D4D3D2D1D0NameAING GPD4 GPD3 GPD2 GPD1Type R/W R/W R/W R/W R/WBit Nam

Si2400Rev. 1.3 67Reset settings = 0000_0000b (0x00)SE4 (CF5). Chip Functions 5BitD7D6D5D4D3D2D1D0NameNBCK SBCK DRT GPE APO TRSPType R R R/W R/W R/W R/

Si240068 Rev. 1.3Reset settings = 0000_0000b (0x00)SE5 (DSP1). (SE8 = 0x02) Read Only DefinitionBitD7D6D5D4D3D2D1D0NameDDAV TDET TONEType RR RBit Nam

Si2400Rev. 1.3 69Reset settings = 0000_0000b (0x00)SE5 (DSP2). (SE8 = 0x02) Write Only DefinitionBitD7D6D5D4D3D2D1D0NameDTM TONCType WWBit Name Functi

Si2400Rev. 1.3 7Figure 1. Test Circuit for Loop CharacteristicsTable 5. AC Characteristics (VD= 3.0 to 3.6 V, or 4.75 to 5.25 V, TA= 0 to 70°C for K-G

Si240070 Rev. 1.3Reset settings = 0000_0000b (0x00)Reset settings = 0000_0000b (0x00)SE6 (DSP3). (SE8 = 0x02) Write Only DefinitionBitD7D6D5D4D3D2D1D

Si2400Rev. 1.3 71Reset settings = 0000_0000b (0x00)SF0 (DAA0). DAA Low Level Functions 0BitD7D6D5D4D3D2D1D0NameLM OFHKType R/W R/WBit Name Function7:2

Si240072 Rev. 1.3Reset settings = 0001_1100b (0x1C)Reset settings = 0000_0000b (0x00)SF1 (DAA1). DAA Low Level Functions 1BitD7D6D5D4D3D2D1D0NameBTE

Si2400Rev. 1.3 73Reset settings = 0000_1111b (0x0F)SF4 (DAA4). DAA Low Level Functions 4BitD7D6D5D4D3D2D1D0NameSQLH ARG ARL ATLType R/W R/W R/W R/WBit

Si240074 Rev. 1.3Reset settings = 0000_1000b (0x08)SF5 (DAA5). DAA Low Level Functions 5BitD7D6D5D4D3D2D1D0NameFULL DCTO OHS ACT DCT RZ RTType R/W R/

Si2400Rev. 1.3 75Reset settings = 0000_0000b (0x00)SF6 (DAA6). DAA Low Level Functions 6BitD7D6D5D4D3D2D1D0NameFJM DIAL VOL FLVMType R/W R/W R/WBit Na

Si240076 Rev. 1.3Reset settings = 0001_0000b (0x10)SF7 (DAA7). DAA Low Level Functions 7BitD7D6D5D4D3D2D1D0NameLM0 LIMType R/W R/WBit Name Function7:

Si2400Rev. 1.3 77Reset settings = 0010_0000b (0x20)SF9 (DAA9). DAA Low Level Functions 9 Read OnlyBitD7D6D5D4D3D2D1D0NameOVL BTD ROVType RRRBit Name F

Si240078 Rev. 1.3APPENDIX A—DAA OPERATIONIntroductionThis section describes the detailed functionality of theintegrated DAA included in the Si2400 chi

Si2400Rev. 1.3 79DC TerminationThe Si2400 has four programmable dc terminationmodes which are selected with SF5[3:2] (DCT).FCC mode (DCT = 10b), shown

Si24008 Rev. 1.3Table 6. Voice Codec AC Characteristics(VD= 3.0 to 3.6 V or 4.75 to 5.25 V, TA= 0 to 70°C for K-Grade, TA= –40 to 85°C for B-Grade)Pa

Si240080 Rev. 1.3AC TerminationThe Si2400 has two ac termination impedances,selected with SF5[4] (ACT). ACT = 0b is a real, nominal 600 Ω termination

Si2400Rev. 1.3 81state. It will take approximately one second to return tonormal dc operating conditions. The BTD and ROV bitsare sticky, and they mus

Si240082 Rev. 1.3The billing tone filter affects the ac termination andreturn loss. The current complex ac termination willpass worldwide return loss

Si2400Rev. 1.3 83Compliance Test CommandsThe following are compliance test commands:ATS07=4ODT; // go off hookATSE8=05\r // place DSP in mode 5 (for Q

Si240084 Rev. 1.3APPENDIX B—TYPICAL MODEM APPLICATIONS EXAMPLESIntroductionAppendix B outlines the steps required to configure theSi2400 for modem ope

Si2400Rev. 1.3 85APPENDIX C—UL1950 3RD EDITIONDesigns using the Si2400 pass all overcurrent andovervoltage tests for UL1950 3rd Edition compliancewith

Si240086 Rev. 1.39. Pin Descriptions: Si2400Pin # Pin Name Description1XTALIXTALI—Crystal Oscillator Pin.These pins provide support for parallel res

Si2400Rev. 1.3 8710GPIO4General Purpose Input/Output 4.This pin can be either a GPIO pin (analog in, digital in, digital out) or the ALERT pin. Defaul

Si240088 Rev. 1.310. Pin Descriptions: Si3015Table 30. 3015 Pin DescriptionsPin # Pin Name Description1QE2Transistor Emitter 2.Connects to the emitt

Si2400Rev. 1.3 8914 RX Receive Input.Serves as the receive side input from the telephone network.15 FILTFilter.Provides filtering for the dc terminati

Si2400Rev. 1.3 9Figure 2. Asynchronous UART Serial Interface Timing DiagramTable 8. Switching Characteristics(VD= 3.0 to 3.6 V or 4.75 to 5.25 V, TA=

Si240090 Rev. 1.311. Ordering GuideChipset Region System-Side Line-Side Pb-Free Temp. RangeSi2400 Global Si2400-KS Si3015-KS No 0 to 70 °CSi2400 Glo

Si2400Rev. 1.3 9112. Package Outline: 16-Pin SOICFigure 21 illustrates the package details for the Si2400 and Si3015. Table 31 lists the values for t

Si240092 Rev. 1.3DOCUMENT CHANGE LISTRevision 1.1 to Revision 1.2 Table 3 on page 6, GPIO1–4 (VOL) changed to 20 mA. Table 4 on page 6, GPIO1–4 (VOL

Si2400Rev. 1.3 93NOTES:

Si240094 Rev. 1.3CONTACT INFORMATIONSilicon Laboratories Inc.4635 Boston LaneAustin, TX 78735Tel: 1+(512) 416-8500Fax: 1+(512) 416-9669Toll Free: 1+(