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TP3057WM Electronic IC Chips Enhanced Serial Interface CODEC

    Buy cheap TP3057WM Electronic IC Chips Enhanced Serial Interface CODEC from wholesalers
     
    Buy cheap TP3057WM Electronic IC Chips Enhanced Serial Interface CODEC from wholesalers
    • Buy cheap TP3057WM Electronic IC Chips Enhanced Serial Interface CODEC from wholesalers

    TP3057WM Electronic IC Chips Enhanced Serial Interface CODEC

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    Brand Name : Anterwell
    Model Number : TP3057WM
    Certification : new & original
    Price : Negotiate
    Payment Terms : T/T, Western Union, Paypal
    Supply Ability : 7500pcs
    Delivery Time : 1 day
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    TP3057WM Electronic IC Chips Enhanced Serial Interface CODEC


    TP3054, TP3057

    ‘‘Enhanced’’ Serial Interface CODEC/Filter COMBOÉ Family


    General Description

    The TP3054, TP3057 family consists of m-law and A-law monolithic PCM CODEC/filters utilizing the A/D and D/A conversion architecture shown inFigure 1, and a serial PCM interface. The devices are fabricated using National’s advanced double-poly CMOS process (microCMOS).


    The encode portion of each device consists of an input gain adjust amplifier, an active RC pre-filter which eliminates very high frequency noise prior to entering a switched-capacitor band-pass filter that rejects signals below 200 Hz and above 3400 Hz. Also included are auto-zero circuitry and a companding coder which samples the filtered signal and encodes it in the companded m-law or A-law PCM format.


    The decode portion of each device consists of an expanding decoder, which reconstructs the analog signal from the companded m-law or A-law code, a low-pass filter which corrects for the sin x/x response of the decoder output and rejects signals above 3400 Hz followed by a single-ended power amplifier capable of driving low impedance loads.


    The devices require two 1.536 MHz, 1.544 MHz or 2.048 MHz transmit and receive master clocks, which may be asynchronous; transmit and receive bit clocks, which may vary from 64 kHz to 2.048 MHz; and transmit and receive frame sync pulses. The timing of the frame sync pulses and PCM data is compatible with both industry standard formats.


    Features

    • Complete CODEC and filtering system (COMBO) including:
      • Transmit high-pass and low-pass filtering
      • Receive low-pass filter with sin x/x correction
      • Active RC noise filters
      • m-law or A-law compatible COder and DECoder
      • Internal precision voltage reference
      • Serial I/O interface
      • Internal auto-zero circuitry
    • m-law, 16-pin----TP3054
    • A-law, 16-pin----TP3057
    • Designed for D3/D4 and CCITT applications
    • ±5V operation
    • Low operating power----typically 50 mW
    • Power-down standby mode----typically 3 mW
    • Automatic power-down
    • TTL or CMOS compatible digital interfaces
    • Maximizes line interface card circuit density
    • Dual-In-Line or surface mount packages
    • See also AN-370, ‘‘Techniques for Designing with CODEC/Filter COMBO Circuits’’

    Absolute Maximum Ratings

    If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/Distributors for availability and specifications.


    VCC to GNDA 7V

    VBB to GNDA -7V

    Voltage at any Analog Input or Output VCC +0.3V to VBB -0.3V

    Voltage at any Digital Input or Output VCC +0.3V to GNDA -0.3V

    Operating Temperature Range -25℃ to +125℃

    Storage Temperature Range -65℃ to +150℃

    Lead Temperature (Soldering, 10 seconds) 300℃

    ESD (Human Body Model) 2000V

    Latch-Up Immunity ---- 100 mA on any Pin


    Connection Diagrams


    Block Diagram


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