MT8840AS Zarlink Semiconductor, MT8840AS Datasheet
MT8840AS
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MT8840AS Summary of contents
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... Modulator RxDO Demodulator DET CRx MT8840AE MT8840AS Description The MT8840 is a carrier over voice modem which allows simultaneous transfer of voice and data over a single pair of wires. Data is transferred on an amplitude shift keyed (ASK) 32 kHz carrier. On-chip filters remove voice frequency signals from the received composite voice and data signal prior to demodulation ...
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MT8840 ISO -CMOS Pin Description Pin # Name 1 DET Demodulator detection level adjust input (Analog). Internal resistor divider applies 2.36V in open circuit condition. Connection of external resistor will vary detect level. 2 CRx External AGC time constant ...
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Functional Description The MT8840 contains the demodulator circuitry for 32 kHz ASK signalling as well as a two-tone warbler (tone caller) to replace the function of the mechanical telephone ringer kHz carrier is 100% amplitude modulated by the ...
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MT8840 ISO -CMOS Micro- UART processor PCM Highway Micro- UART processor Analog To Switch Another SLIC Array Telephone (MT8804) Extension 5-6 Tx Data Tx MT8840 Summing Rx Data Rx Circuit Tx FILTER/ CODEC (MT896X) Rx Figure 3 - Digital ...
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Summing 2W/4W Telephone Converter line Figure 5 - Smart Telephone Set Block Diagram V DD OSC1 MT8840 OSC2 V SS When a single crystal is shared among a number of MT8840 devices, OSC1 and OSC2 should be a.c. coupled with ...
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MT8840 ISO -CMOS Absolute Maximum Ratings* Parameter 1 Supply Voltage 2 Voltage On Any Pin 3 Current On Any Pin 4 Storage Temperature 5 Package Power Dissipation * Exceeding these ratings may cause permanent damage. Functional operation under these ...
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A.C. Characteristics - V =5.0V DD Characteristics 1 Crystal/Clock Frequency 2 Clock Input (OSC 1) 3 Rise Time 4 Fall Time Duty Cycle G 6 Clock Output (OSC Rise Time Fall ...
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MT8840 ISO -CMOS A.C. Characteristics (Continued) Characteristics 44 D Inband Noise Rejection (S/ Attenuation to Voice Signals M 46 Detect Filter Detector Center Frequency Notes: 1. All A.C. parameters are based on a ...
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Package Outlines Notes Not to scale 2) Dimensions in inches 3) (Dimensions in millimeters) Plastic Dual-In-Line Packages (PDIP Suffix 8-Pin DIM Plastic Min Max A 0.210 (5.33) A 0.115 (2.92) ...
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Notes Not to scale 2) Dimensions in inches 3) (Dimensions in millimeters) Plastic Dual-In-Line Packages (PDIP Suffix 22-Pin DIM Plastic Min Max A 0.210 (5.33) A 0.125 (3.18) 0.195 ...
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16-Pin DIM Min Max Min A 0.093 0.104 0.093 (2.35) (2.65) (2.35) A 0.004 0.012 0.004 1 (0.10) (0.30) (0.10) B 0.013 0.020 0.013 (0.33) (0.51) (0.33) C 0.009 0.013 0.009 (0.231) (0.318) (0.231) D 0.398 0.413 ...
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... For more information about all Zarlink products Information relating to products and services furnished herein by Zarlink Semiconductor Inc. trading as Zarlink Semiconductor or its subsidiaries (collectively “Zarlink”) is believed to be reliable. However, Zarlink assumes no liability for errors that may appear in this publication, or for liability otherwise arising from the application or use of any such information, product or service or for any infringement of patents or other intellectual property rights owned by third parties which may result from such application or use ...