CMX269AE2 MX-COM, Inc., CMX269AE2 Datasheet
CMX269AE2
Related parts for CMX269AE2
CMX269AE2 Summary of contents
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... The CMX469A operates with a 3.0V to 5.5V supply and is available in the following packages: 24-pin TSSOP (CMX469AE2), 20-pin SOIC (CMX469AD3), and 22-pin PDIP (CMX469AP6). 1999 MX-COM, Inc. www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA ...
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... Operating Limits ....................................................................................................................... 11 6.1.3 Operating Characteristics ......................................................................................................... 12 6.1.4 Timing....................................................................................................................................... 14 6.2 Packages........................................................................................................................... 17 MX-COM, Inc. reserves the right to change specifications at any time without notice. 1999 MX-COM, Inc. www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA 2 CMX469A PRELIMINARY INFORMATION Contents All trademarks and service marks are held by their respective companies ...
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... MSK Modem 1. Block Diagram 1999 MX-COM, Inc. www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA 3 CMX469A PRELIMINARY INFORMATION Figure 1: Block Diagram All trademarks and service marks are held by their respective companies. ...
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... RX Signal Sync Out 1999 MX-COM, Inc. www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA 4 Signal Type The input to the on-chip inverter, for use with either a 1.008MHz or a 4.032MHz Xtal or external clock. ...
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... Select Pin 4800 Select Pin Data Rate (bps) Table 3: Operational Data Rate Configuration 1999 MX-COM, Inc. www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA 5 Signal Type A logic ‘1’ on this pin selects the 1200bps option. ...
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... Figure 3: Recommended External Components for D3 package Component Notes Table 4: Recommended External Components 1999 MX-COM, Inc. www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA 6 Value Component Notes C5 1.0M 33.0pF C6 1 1.0µ ...
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... Carrier Detect Out. A Bandpass output is also available from the output of the first Rx filter stage, but will require buffering before use. 1999 MX-COM, Inc. www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA ...
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... Synchronous and asynchronous interface can be successfully interfaced for applications requiring the advantages of both. This typically involves the use of data buffering and retiming circuits to resolve the timing and pacing issues. 1999 MX-COM, Inc. www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA ...
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... Figure 6: Typical Variation of Bit Error Rate with Input Level 1999 MX-COM, Inc. www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA 9 TX SIGNAL O/P TELEPHONE BUFFER ...
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... Figure 7: RX Bit-Error-Rate vs. Signal-to-Noise Ratio 1999 MX-COM, Inc. www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA 10 CMX469A SNR (dB) BIT RATE BANDWIDTH (lin scale) All trademarks and service marks are held by their respective companies ...
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... A Xtal frequency of 1.008MHz (1200/2400 baud only) or 4.032MHz is required for correct operation. A frequency tolerance of 0.1% is recommended, but ultimately the tolerance selected will depend upon system requirements. 1999 MX-COM, Inc. www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA ...
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... Carrier Detect Sensitivity Probability of CD being high after bit 16: With SNR = 12dB With 230mVRMS Noise and No Signal 1999 MX-COM, Inc. www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA 12 = 3. ...
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... RMS (1200/2400 baud operation) or 8kHz (4800 baud operation). See Section 3, Note 2 for details on optimizing noise immunity. 10. For an unmodulated carrier 1999 MX-COM, Inc. www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA 13 Notes Min ...
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... LOGIC '1' RX SIGNAL I/P 1200 BPS 1 RX SYNC O/P (1200Hz CLOCKED DATA O/P 0 Figure 9: Receiver Timing Diagram: 1200bps 1999 MX-COM, Inc. www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA 14 Note Min. t SYNC t 2.0 ESET t 1 2.0 ...
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... Figure 10: Transmitter Timing: 2400bps LOGIC '1' RX SIGNAL I/P 2400 BPS 1 RX SYNC O/P (2400Hz RDR 1 CLOCKED DATA O/P 0 1999 MX-COM, Inc. www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA 15 Note Min. t SYNC t 2.0 ESET t 1 2.0 DSET t 2 ...
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... Figure 12: Transmitter Timing: 4800bps LOGIC '1' RX SIGNAL I/P 4800 BPS 1 RX SYNC O/P (4800Hz RDR 1 CLOCKED DATA O/P 0 1999 MX-COM, Inc. www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA 16 Note Min. t SYNC t 2.0 ESET t 1 2.0 DSET t 2 ...
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... A ALTERNATIVE PIN LOCATION MARKING PIN Figure 15: 20-pin SOIC Mechanical Outline: Order as part no. CMX469AD3 1999 MX-COM, Inc. www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA ...
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... MARKING PIN Figure 16: 24-pin TSSOP Mechanical Outline: Order as part no. CMX469AE2 1999 MX-COM, Inc. www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies. ...