Maker : Xecom
Part No. : XE2422H

  Datasheet PDF : XE2422H.pdf
  Cross Reference : XE2422H Cross Reference
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Product Information

XE2422H Septembeer 2005 Low-Cost, 2400 BPS Surface-Mount Modem Description XE2422H is a complete miniature, surface-mount, 2400 bps modem. It permits the designer to easily incorporate dial-up communications into set top box, security, vending, or point-of-sale applications. XE2422H is not just a modem chip. The only design requirements are a serial port connection to the micro-controller and the connection to the telephone line. The XE2422H includes transferable FCC Part 68 Registration eliminating FCC Part 68 testing for the Xecom customer. With the XE2422H, Xecom lowers the total cost of modem ownership. As a complete modem, it dramatically reduces modem development and certification costs. Assembly costs are reduced as dozens of components are replaced with this single, surface-mount module. And since Xecom tests 100% of all modules, quality is also improved. The cost of the XE2422H is under nine dollars in 100,000 piece quantities. Contact Xecom for pricing at other quantities Features • • Small Size: 1.60” by 0.80” by 0.152” Data transfer rates from 300 bps to 2400 bps 212A modem protocols • Supports V.21, V.22, V.22bis, V.23, Bell 103, Bell • V.22/Bell 212 Fast Connect • Supports Pulse and FSK Alarm formats • • • • • • • • • • Serial data rates to 115,200 bps. Control and configuration via AT Commands. 3.3 and 5 volt compatible Serial Interface Shared Line Features prevent interference with voice communications on an extension telephone. Complete integrated DAA. User Transferrable FCC Part 68 Registration UL60950 Recognition Low Operating Power, 3.3 Volts, <30 mW; Sleep Mode with Wake-on-Ring feature; Power Down reduces current draw to 100 µA XE2422H BLOCK DIAGRAM /Reset TXD RXD /DCD /CTS /INT ROM Modem Controller Analog Front End Telephone Line Interface (DAA) Tip Ring /RI XECOM (1) XE2422H XE2422H Mechanical Specifications A E D F I F J B (bottom) F C G H Inches Dimension A B C D E F G H I J Min 1.595 0.795 0.147 0.095 0.055 0.095 1.045 0.495 0.995 0.395 Typ 1.600 0.800 0.152 0.100 0.060 0.100 1.050 0.500 1.000 0.400 Max 1.605 0.805 0.157 0.105 0.065 0.105 1.055 0.505 1.005 0.405 Min 40.51 20.19 3.73 2.41 1.40 2.41 26.54 12.57 25.27 10.03 Millimeters Typ 40.64 20.32 3.86 2.54 1.52 2.54 26.67 12.70 25.40 10.16 Max 40.77 20.45 3.99 2.67 1.65 2.67 26.80 12.83 25.53 10.29 XECOM (2) XE2422H XE2422H Pin Configuration Top View Tip Ring 1 2 13 /DCD /DTR /RI Reserved GND 3 4 5 6 7 12 11 10 9 8 VCC /INT /CTS /RESET RXD TXD Note: Pin 1 is marked with a white circle on the top of the module Pin Descriptions PIN 1 NAME Tip DESCRIPTION The Ring and Tip signals connect the modem to the telephone line. FCC Part 68 Rules require a 1500 volt isolation barrier between the telephone line and all other circuits. This isolation must be preserved throughout the system. The telephone company places a DC “Battery” voltage across Tip and Ring on public switched telephone lines. The XE2422H operates regardless of the polarity of this voltage. The “Battery” voltage drives up to 120 milliampere of DC loop current. UL60950 requires minimum creepage and clearances distances between the Tip and Ring traces and all other circuits. Clearance is the shortest distance between conductive circuits; creepage is the distance between conductive points along the surface 2 Ring The Ring and Tip signals connect the modem to the telephone line. FCC Part 68 Rules require a 1500 volt isolation barrier between the telephone line and all other circuits. This isolation must be preserved throughout the system. The telephone company places a DC “Battery” voltage across Tip and Ring on public switched telephone lines. The XE2422H operates regardless of the polarity of this voltage. The “Battery” voltage drives up to 120 milliampere of DC loop current. UL60950 requires minimum creepage and clearances distances between the Tip and Ring traces and all other circuits. Clearance is the shortes...

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