si2493 Silicon Laboratories, si2493 Datasheet

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... This compact solution eliminates 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, the Si2493 is ideal for embedded modem applications due to its flexibility, small footprint, and minimal external component count. ...

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... Si2493 2 Rev. 1.3 ...

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... EEPROM Interface (24-Pin Version Only 4.23. AT Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 4.24. Extended AT Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 5. S-Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 6. User-Access Registers (U-Registers Pin Descriptions: Si2493 (16-Pin Option Pin Descriptions: Si2493 (24-Pin Option Pin Descriptions: Si3018 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 10. Ordering Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 11. Package Markings (Top Markings 11.1. Si2493-D-FT Top Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 11 ...

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... Si2493 Supply Voltage, Digital Notes: 1. The Si2493 specifications are guaranteed when the typical application circuit (including component tolerance) and any Si2493 and any Si3018 are used. See "2. Typical Application Schematic" on page 11. 2. All minimum and maximum specifications are guaranteed and apply across the recommended operating conditions. ...

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... G-grade) A Symbol Test Condition – PDN = 1 D Rev. 1.3 Si2493 I L Min Typ Max Unit 2.0 — — V — — 0.8 V 2.4 — — V — — 0.35 V –10 — 10 µA 50 125 200 k ...

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... Si2493 Table 4. AC Characteristics (V = 3 °C for F-grade kHz Parameter Sample Rate Clock Input Frequency Clock Input Frequency Clock Input Frequency Receive Frequency Response Receive Frequency Response 2 Transmit Full Scale Level 2,3 Receive Full Scale Level 4 Dynamic Range ...

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... Table 5. Absolute Maximum Ratings Parameter DC Supply Voltage Input Current, Si2493 Digital Input Pins Digital Input Voltage CLKIN/XTALI Input Voltage Operating Temperature Range Storage Temperature Range 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 ...

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... Si2493 Table 6. Switching Characteristics (V = 3 °C for F-grade Parameter Read Cycle Time Write to Read Cycle Time Serial Peripheral Interface (SPI) Timing Parameters SS Falling to First SCLK Edge Last SCLK Edge to SS Rising SS Rising to MISO High-Z SCLK High Time SCLK Low Time ...

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... RD t RLDD D[7:0] Figure 3. Parallel Interface Read Timing t CSS ADDRESS = D[7:0] Figure 4. Parallel Interface Write Timing t CSH VALID DATA t CSH DSU t DH VALID DATA Rev. 1.3 Si2493 VALID DATA t RLDD VALID DATA 9 ...

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... Si2493 CS ADDRESS = D[7:0] Figure 5. Parallel Interface Write Followed by Read Timing 10 t WRC WDSU VALID DATA Rev. 1.3 VALID DATA t RLDD ...

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... Typical Application Schematic + GND IGND Rev. 1.3 Si2493 11 ...

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... Si2493 + VD3 IGND 15 VDB 19 VDA 7 GND 20 GND 6 Rev. 1.3 ...

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... Y1 Z1 Notes: 1. C52 and C53 should not be populated with the Si2493 16-pin package option. 2. Several diode bridge configurations are acceptable. For example, a single DF04S or four 1N4004 diodes may be used. 3. Murata BLM21AG601SN1 may be substituted for R15–R16 (0 ) to decrease emissions ensure compliance with ITU specifications, frequency tolerance must be less than 100 ppm including initial accuracy, 5-year aging ° ...

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... Si2493 Item Data Rate (downstream) 56 kbps 54.666 kbps 53.333 kbps 52 kbps 50.666 kbps 49.333 kbps 48 kbps 46.666 kbps 45.333 kbps 44 kbps 42.666 kbps 41.333 kbps 40 kbps 38.666 kbps 37.333 kbps 36 kbps 34.666 kbps 33.333 kbps 32 kbps 30.666 kbps 29.333 kbps 28 kbps ...

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... TCM/2400 Baud ±0.01% 64-level TCM/2400 Baud ±0.01% 32-level TCM/2400 Baud ±0.01% 16-level QAM/2400 Baud ±0.01% 16-level TCM/2400 Baud ±0.01% 4-level QAM/2400 Baud ±0.01% 16-level QAM/600 Baud ±0.01% 4-level PSK/600 Baud ±0.01% FSK 0–300 Baud ±0.01% 2100 Hz ±3 Hz 2225 Hz ±3 Hz Rev. 1.3 Si2493 15 ...

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... Si2493 Table 7. Protocol Characteristics (Continued) Item Transmit Carrier V.92 V.90 V.34 ITU-T V.32bis ITU-T V.32 ITU-T V.29 ITU-T V.22, V.22bis/Bell 212A Originate mode Answer mode ITU-T V.21 Originate mode Answer mode Bell 103 Originate mode Answer mode Output Level Permissive—Switched network Receive Carrier ITU-T V.90 ITU-T V.34 ITU-T V.32bis ITU-T V ...

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... Phone Types Dialing DTMF Output Level Pulse Dial Ratio Ring Cadence Call Progress Monitor Specification 500 (rotary dial), 2500 (DTMF dial) Pulse and Tone Per Part 68 Make/Break: 39/61 seconds; Off 4 seconds BUSY CONNECT (rate) NO ANSWER NO CARRIER NO DIALTONE OK RING RINGING Rev. 1.3 Si2493 17 ...

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... The Si2493 accepts standard modem AT commands and provides connect rates up to 56/33.6/14.4/2.4 kbps full- duplex over the Public Switched Telephone Network (PSTN). The Si2493 features a complete set of modem protocols including all ITU-T standard formats up to V.92. To provide the most flexibility, the Si2493 ISOmodem system-side device is offered in either a 24-pin TSSOP or a 16-pin SOIC package ...

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... Wire Mode Wire mode is used to communicate with standard non- error correcting modems. When optioned with \N3, the Si2493 falls back to wire mode if it fails in an attempt to negotiate a V.42 link with the remote modem. Error correction and data compression are not active in wire mode. ...

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... Si2493 is connected to a central office that allows call waiting. 20 4.14. Caller ID Operation The Si2493 supports full type I and type II caller ID detection and decode. Caller ID is supported for the US Bellcore, European ETSI, UK, and Japanese protocols and is enabled via the +VCID, +VCDT, and +PCW commands ...

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... CTR21 only 20 LVCS BITS Loop Voltage (V) Figure 9. Loop Voltage Loop Current (mA) Figure 10. Loop Current Rev. 1.3 Si2493 100 Overload 140 21 ...

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... AT command macros for use in custom AT commands or country codes. See AN93 for complete details. 4.23. AT Commands At powerup, the Si2493 is in the AT command mode. In command mode, the modem monitors the input (serial or parallel) checking constantly for a valid command (AT commands are described in Table 8.) Rev ...

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... Return to AT command mode Wait for silence. Polarity reversal detect. By placing the “G” character in the dial string (i.e. ATDTG1), the Si2493 will monitor the telephone line for polarity reversals busy tone is detected, the Si2493 will report “POLARITY REVER- SAL” polarity reversal was detected or “NO POLAR- ITY REVERSAL” ...

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... Table 8. Basic AT Command Set (Command Defaults in Bold) (Continued) Command Go off-hook. H1 Identification and checksum. In Display Si2493 revision code Revision B C: Revision C, etc. Display Si2493 firmware revision code (numeric). I1 Display line-side revision code. I3 18C = Si3018 revision C Display the ISOmodem I6 “2493” = Si2493 Diagnostic results 1. See “AN93: ISOModem I7 Diagnostic results 2 ...

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... V1 Call Progress Monitor (CPM)—This command controls which CPM signals are monitored Xn and reported to the host from the Si2493. (See Table 12 on page 40.) Basic results; disable CPM—Blind dial (does not wait for dial tone). CONNECT message X0 does not include speed. ...

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... Si2493 Table 8. Basic AT Command Set (Command Defaults in Bold) (Continued) Command Data compression reporting. X Mode 0 Disabled 1 Enabled If enabled, the intermediate result code is transmitted at the point after error control negotia- +DR=X tion. The format of this result code is as follows: Result code +DR:NONE +DR:V42B +DR:V42B RD +DR:V42B TD Controls V ...

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... Same as &T4, but transmit V.29 7200 bps. Data pattern set by S40 register FCLASS = 0 must be sent to restore the ISOmodem +FTM = X test. 54 Same as &T4, but transmit V.29 9600 bps. Data pattern set by S40 register FCLASS = 0 must be sent to restore the ISOmodem to normal operation after test. 95 V.29 short synchronous. 96 V.29 full synchronous. Action ® to normal operation after Rev. 1.3 Si2493 27 ...

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... Si2493 Table 8. Basic AT Command Set (Command Defaults in Bold) (Continued) Command Country settings - Automatically configure all registers for a particular country. X Country 0 Japan 9 Australia A Austria F Belgium 16 Brazil 1B Bulgaria 20 Canada 26 China 27 Columbia 2E Czech Republic 31 Denmark 35 Ecuador 3C Finland 3D France 42 Germany 46 Greece 50 Hong Kong 51 Hungary 53 India ...

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... Min RX rate/Max RX rate are optional numeric values which specify the highest value at which the DCE may establish a connection. If unspecified (set to 0), they are determined by the carrier and automode settings. Action e.g. +MRR: 14400 ITU-T V.21 ITU-T V.22 ITU-T V.22bis ITU-T V.32 ITU-T V.32bis ITU-T V.34 ITU-T V.90 ITU-T V.92 Disabled Enabled Rev. 1.3 Si2493 29 ...

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... Si2493 Table 8. Basic AT Command Set (Command Defaults in Bold) (Continued) Command Controls the action to be taken upon detection of call waiting. X Mode +PCW = X 0 Toggle RI and collect type II Caller ID if enabled by +VCID. 1 Hang up. 2 Ignore call waiting. Controls the use of PCM upstream in a V.92 DCE. ...

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... After ring only +VCDT = X 1 Always on (Recommended Setting Japan Caller ID Enable. X Mode +VCID = X 0 Off 1 On—formatted 2 On—raw data format Type II caller ID information — The Si2493 will display “+VCDIR:” followed by raw caller ID +VCIDR? information including checksum. Action Rev. 1.3 Si2493 31 ...

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... Restore factory default settings. &F Line connection rate limit—This command sets an upper limit on the line speed that the Si2493 can &Gn connect. Note that the &Hn commands may limit the line speed as well (&Gn not used for &H0 or &H1). Not all modulations support rates given by &G. Any improper setting will be ignored. ...

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... RX pin (Register 0 in parallel mode). Initiate ITU-T V.54 (ANALOOP) test. Modulation set by &H AT command. Test loop is through the DSP (Si2493), DAA interface section (Si2493), DAA interface (Si3018), and analog hybrid circuit &T3 (Si3018). ISOmodem echoes data from TX pin (Register 0 in parallel mode) back to RX pin (Regis- ter 0 in parallel mode) ...

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... Si2493 Table 9. Extended AT& Command Set (Command Defaults in Bold) (Continued) Command Abort &x1 or &x2 command. &X0 Automatic determination of telephone line type. Result code: WXYZn line supports DTMF dialing line is pulse dial only line supports 20 pps dialing line supports 10 pps dialing only. ...

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... If a line is present, the Si2493 will automatically check if the line is already in use. Finally, the Si2493 will check line status both before going off-hook and again before dialing. %V1 uses the fixed method, and %V2 uses the adaptive method. %V0 (default) disables this feature ...

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... The NLIU register is updated every 1 ms with the minimum non-zero value of LVCS in the last 30 ms. This allows the Si2493 to eliminate errors due to 50/60 Hz interference and also adapt to rel- atively slow change in the on-hook dc reference value on the telephone line. This algorithm does not allow any non-zero values for NLIU below 0x0007. The host may also initialize NLIU prior to issuing the %V2 command. Once the call has begun, the off-hook intrusion algorithm (described in " ...

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... Asynchronous protocol \N0 Wire mode (no error correction, no compression) \N2 MNP reliable mode. The Si2493 attempts to connect with the MNP protocol. If unsuccessful, the call is dropped. \N3 V.42 auto-reliable—The Si2493 attempts to connect with the V.42 protocol. If unsuccessful, the MNP protocol is attempted. If unsuccessful, wire mode is attempted. \N4 V.42 (LAPM) reliable mode (or drop call)— ...

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... DTE rate—Change DTE rate. When the Si2493 is configured in autobaud mode (default), \T0 through \T15 will lock the new baud rate and disable autobaud. When the ISOmodem autobaud mode (the autobaud strap pin low on powerup), the result code “OK” is sent at the old DTE rate ...

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... This is compatible with seven data bits, no parity, two stop bits. Seven data bits, no parity, one stop bit may be forced by sending AT\T17\B1. 2. The autobaud feature does not detect this rate. 3. Default is \ pulldown resistor is connected to the autobaud strap pin; otherwise, the default is \T16. Action Rev. 1.3 Si2493 39 ...

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... Si2493 Numeric Meaning 0 Command was successful 1 Link established at 300 bps or higher 2 Incoming ring detected 3 Link dropped 4 Command failed 5 Link establish at 1200 6 Dial tone not present 7 Line busy 8 Remote not answering 9 Ringback detected 10 Link established at 2400 11 Link established at 4800 12 Link established at 9600 ...

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... ALTERNATE, + CLASS 4 PROTOCOL: ALTERNATE, + CLASS 5 CONNECT 38666 CONNECT 40000 CONNECT 41333 CONNECT 42666 CONNECT 44000 CONNECT 45333 CONNECT 46666 CONNECT 49333 CONNECT 50666 CONNECT 52000 CONNECT 53333 CONNECT 54666 UN–OBTAINABLE NUMBER Rev. 1.3 Si2493 ...

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... If S10 is less than S9, even a momentary loss of carrier causes a disconnect. 12 Escape code guard timer—Minimum guard time required before and after “+++” for the Si2493 to rec- ognize a valid escape sequence. 14 Wait for dial tone delay value (in relation to the W dial modifier). Starts when “ ...

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... Allowable Data Rates Symbol Rate 2400 2400–21600 2743 4800–26400 2800 4800–26400 3000 4800–28800 3200 4800–31200 3429 4800–33600 Definition Function Rev. 1.3 Si2493 Default Range Units (Decimal) 0 0–255 seconds 0 0–255 minutes 20 0–255 seconds 0 0–2 0 0– ...

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... Table 13. S-Register Description (Continued) S-Register (Decimal) 42 Blacklisting—The Si2493 will not dial the same number more than two times in three minutes. An attempt to dial a third time within three minutes will result in a “BLACKLISTED” result code. If the blacklist memory is full, any dial to a new number will result in a “BLACK- LIST FULL” ...

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... U-Registers are reserved. Any attempt to write a non-zero value to a reserved U-Register or bit may cause unpredictable modem operation. With over 100 U-Registers, the Si2493 offers an unprecedented level of programmability for a controller- based modem. A detailed list of these registers and their use is beyond the scope of this data sheet. Refer ® ...

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... Serial data input to modem in SPI mode. Data input from DTE TXD pin in UART mode. 7 SCLK/CTS Serial Data Clock/Clear to Send. Signals that the Si2493 is ready to receive more digital data on the TXD pin. Serial data clock input in SPI mode. 8 RESET Reset Input. An active low input that is used to reset all control registers to a defined, initialized state ...

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... A positive edge on this pin causes the modem to go from online (connected) mode to the offline (command) mode. 15 DCD Carrier Detect. Active low carrier detect. 16 SS/RTS SPI Slave Select/Request to Send. Active low slave select in SPI mode. Active low request to send input used for flow control in UART mode. Description Rev. 1.3 Si2493 47 ...

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... FSYNC/D6 Frame Sync/Data Bit. Frame Sync output to codec in serial mode. Bidirectional parallel bus data bit 6 in parallel mode VD3.3 Digital Supply Voltage. Provides the 3.3 V supply voltage to the Si2493 GND Ground. Connects to the system digital ground. 7,19 VDA, VDB Regulator Voltage Reference. ...

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... Active low write enable pin in parallel mode. 11 SCLK/CTS/CS Serial Data Clock/Clear to Send/Chip Select. Serial data clock input in SPI mode. Signals that the Si2493 is ready to receive more digital data on the TXD pin in data mode. Active low chip select in parallel mode. 12 RESET Reset Input ...

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... Connects through a resistor to the RING lead of the telephone line. Provides the ring and caller ID signals to the Si2493. 9 RNG2 Ring 2. Connects through a resistor to the TIP lead of the telephone line. Provides the ring and caller ID signals to the Si2493. 10 VREG2 Voltage Regulator 2. Connects to an external capacitor to provide bypassing for an internal power supply Connection ...

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... Note: Add an “R” at the end of the device to denote tape and reel option. System-Side System-Side Package 24-pin TSSOP Si2493-D-FT 16-pin SOIC Si2493-D-FS 24-pin TSSOP Si2493-D-GT Rev. 1.3 Si2493 Line-Side Temp Range Si3018-F- °C Si3018-F- °C Si3018-F-GS – °C ...

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... Si2493 11. Package Markings (Top Markings) Codes for the Si2493-D-FT and Si2493-D-FS top marks are as follows:  Current Year  Work Week  Die Revision  TTTTT = Trace Code  Assembly Country Code 11.1. Si2493-D-FT Top Marking   11.2. Si2493-D-FS Top Marking   11.3. Si3018-F-FS Top Marking   ...

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... Package Outline: 24-Pin TSSOP Figure 14 illustrates the package details for the Si2493 24-pin packaging option. Table 15 lists the values for the dimensions shown in the illustration. Figure 14. 24-Pin Thin Shrink Small Outline Package (TSSOP) Table 15. Package Diagram Dimensions Dimension ...

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... Si2493 13. 24-Pin TSSOP Land Pattern Figure 15 illustrates the recommended land pattern for the Si2493 24-Pin TSSOP. Table 16 lists the values for the dimensions shown in the illustration.   Figure 15. 24-Pin TSSOP Land Pattern Diagram Table 16. 24-Pin TSSOP PCB Land Pattern Dimension ...

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... Package Outline: 16-Pin SOIC Figure 16 illustrates the package details for the Si2493 16-pin packaging option. Table 17 lists the values for the dimensions shown in the illustration. Figure 16. 16-Pin Small Outline Integrated Circuit (SOIC) Package Rev. 1.3 Si2493 55 ...

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... Si2493 Table 17. Package Diagram Dimensions Dimension θ aaa bbb ccc ddd Notes: 1. All dimensions shown are in millimeters (mm) unless otherwise noted. 2. Dimensioning and Tolerancing per ANSI Y14.5M-1994. 3. This drawing conforms to the JEDEC Solid State Outline MS-012, Variation AC ...

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... SOIC Land Pattern Figure 17 illustrates the recommended land pattern for the Si2493 16-Pin SOIC. Table 18 lists the values for the dimensions shown in the illustration. Figure 17. 16-Pin SOIC Land Pattern Diagram Table 18. 16-Pin SOIC Land Pattern Dimensions Dimension Notes: General 1 ...

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... Updated default register setting in Table 14.  Added 16-pin system-side option.  Updated "4. Functional Description" on page 18.  Added "7. Pin Descriptions: Si2493 (16-Pin Option)" on page 46.  Updated "10. Ordering Guide" on page 51 to reflect part revision. Revision 1.0 to Revision 1.1  Added industrial temperature range devices. ...

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... N : OTES Rev. 1.3 Si2493 59 ...

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... Si2493 C I ONTACT NFORMATION Silicon Laboratories Inc. 400 West Cesar Chavez Austin, TX 78701 Tel: 1+(512) 416-8500 Fax: 1+(512) 416-9669 Toll Free: 1+(877) 444-3032 Please visit the Silicon Labs Technical Support web page: https://www.silabs.com/support/pages/contacttechnicalsupport.aspx and register to submit a technical support request. The information in this document is believed to be accurate in all respects at the time of publication but is subject to change without notice. ...