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C0603X7R160-104M Datasheet(PDF) 8 Page - Silicon Laboratories |
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C0603X7R160-104M Datasheet(HTML) 8 Page - Silicon Laboratories |
8 / 36 page Si2493/57/34/15/04 Global ISOmodem-EVB 8 Rev. 0.7 either side. 1.5. Terminal and Line Connections The Si2493/57/34/15/04 can be tested as a standard serial data modem by connecting the Si2493/57/34/15/ 04-EVB to a personal computer or other data terminal equipment (DTE), phone line, and power. Connect a PC serial port to the DB9 connector on the Si2493/57/34/ 15/04-EVB with a pass-through cable. The RS-232 transceivers on the EVB can communicate with the DTE at rates up to 1 Mbps. Any standard terminal program, such as HyperTerminal or ProComm, running on a PC communicates with the Si2493/57/34/15/04-EVB. The standard factory jumper configuration has autobaud enabled. Autobaud detects the DTE speed, data length, parity, and number of stop bits. If JP33 is installed, autobaud is disabled. Configure the terminal emulation program to 19200 bps, eight data bits, no parity, one stop bit, and hardware (CTS) handshaking. Connect the RJ-11 jack on the Si2493/57/ 34/15/04-EVB to an analog phone line or telephone line simulator, such as a Teltone TLS 5. 1.6. Making Connections With the terminal program properly configured and running, apply power to the Si2493/57/34/15/04-EVB. Type “AT<cr>”, and the modem should return “OK” indicating the modem is working in the command mode and communicating with the terminal. If the “OK” response is not received, try resetting the modem by pressing the manual reset switch (S1); then, again type “AT<cr>.” Next, type “ATI6<cr>.” The modem should respond with “2493”, “2457”, “2434”, “2415”, or “2404” indicating the terminal is communicating with an Si2493, Si2457, Si2434, Si2415, or Si2404. Type “ATS0=2<cr>” to configure the modem to answer on the second ring. To take the modem off-hook, type “ATH1<cr>.” The modem should go to the off-hook state, draw loop current, and respond with an “OK.” Next, type “ATH<cr>” or “ATH0<cr>”, and the modem should hang up (go on-hook) and stop drawing loop current. To make a modem connection, type “ATDT(called modem phone number)<cr>.” Once the connection is established, a “CONNECT” message appears indicating the two modems are in the data mode and communicating. Typing on one terminal should appear on the other terminal. To return to the command mode without interrupting the connection between the two modems, type “+++.” Approximately two seconds later, “OK” appears. The modem is now in command mode and accepts “AT” commands.Type “ATH” (or “ATH0”) to terminate the data connection, or type “ATO” to return to the data mode. After the ATO command, the modem resumes the data connection and no longer accepts AT commands. 1.7. EVB Part Numbers The ISOmodem evaluation boards are offered in multiple speeds and packaging options. The first four numbers indicate the system-side device. The next two letters indicate the system-side package (FS–Lead-free, 16-pin SOIC; FT–Lead-free, 24-pin TSSOP). The final two numbers indicate the line-side device. See Figure 7. Figure 7. EVB Part Number Example 2. Si2493/57/34/15/04-EVB Functional Description The Si2493/57/34/15/04-EVB is a multipurpose evaluation system. The modem daughter card illustrates the small size and few components required to implement an entire controller-based modem with global compatibility. The daughter card can be used independently of, or in conjunction with, the motherboard. The motherboard adds features that enhance the ease of evaluating the many capabilities of the Si2493/57/34/15/04 ISOmodem®. 2.1. Motherboard The motherboard provides a convenient interface to the Si2493/57/34/15/04 DC (daughter card). The versatile power supply allows for a wide range of ac and dc voltages to power the board. RS-232 transceivers and a DB9 connector allow the Si2493/57/34/15/04-EVB to be easily connected to a PC or other terminal device. Jumper options allow direct access to the LVCMOS/TTL level serial inputs to the Si2493/57/34/15/04, bypassing the RS-232 transceivers or USB interface. This is particularly useful for directly connecting the Si2493/57/ 34/15/04 to embedded systems. The Si24xxURT-EVB motherboard connects to the daughter card through two connectors, JP101 and JP2. JP101 is an 8x2 header providing connection to all Si2493/57/34/15/04 digital signals and regulated 3.3 V power for the Si2493/57/34/15/04. The Si2493/57/34/ 15/04 digital signals appearing at JP101 (daughter card interface) are LVCMOS and TTL compatible. JP2 is a 4x1 socket providing connection between the daughter Si2457-D-FS18-EVB LS Part Number (Si30xx) SS Package SS Part Number SS Revision |
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