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    E1+1Channel Stereo Audio Codec

    Type:FCA-E1A1-B Message

    Description:E1 audio codec ,can transfer a bidirectional stereo audio channels in a channel E1

    Product Description
                 E1 Audio Codec is designed by using FPGA digital codec and clock recovery technology. It is applied to broadcasting program source transmission equipment. Audio codec is to frame the stereo audio input signals or AES digital audio signal after A/D digital codec conversion or data format forming a serial data stream output from E1. Audio codec will accept E1 serial data after clock recovery and the split frame recover audio signal stereo audio or AES digital audio output.

    Functional Properties
    Ø Machine design for veneer 
    Ø Using FPGA digital codec and clock recovery technology high integration high stability
    Ø Using advanced digital processing clock recovery and digital codec chip. The performance is better.
    Ø The panel has LED that indicates E1 stereo and digital audio signal operation condition.
    Ø Using SDH PDH microwave 2M channel point to point transmission of audio signal source.
    Ø Meet the E1 interface Distributor can achieve one transmission more receive broadcast transmission of  audio signal source.
    Ø Applied to province city county and town area group network to realize long distance transmission of audio     signal source.
    Ø E1 interface complied with protocol G.703 using digital clock recovery and smooth phase-locked technology

    Ø Audio interface three-level lightning-protection reached IEC61000-4-5 (8/20μS) DM(Differential Mode): 6KV      Impedance (2 Ohm)

           CM(Common Mode): 6KV Impedance (2 Ohm) standard

    Ø AC220V DC-48V/DC24V optional; 

    Technical Parameters

    u   Ethernet interface 

        Interface Standard:  comply with protocol G.703;

        Interface Rate:  2048Kbps±50ppm;

        Interface Code: HDB3;

        Impedance:   75Ω (unbalance) 120Ω (balance);

        Jitter tolerance: In accord with protocol G.742 and G.823

        Allowed Attenuation: 0~6dBm

    u   Audio interface 

        Audio input/output interface: (RCA) unbalanced 0dBm/600Ω
        Maximum input level: ≥ 9.5dBm
        Audio Gain: ± 0.1 dB
        Audio A/D sampling: 24bit
        Audio signal-to-noise ratio (weighted): ≥ 75dB
        Bandwidth:  20Hz~20KHz
        Nonlinear distortion coefficient: ≤ 0.2%
        Frequency: ≤ ± 0.5 dB

    u   Power

     

        Power supply: AC180V ~ 260V;DC –48V;DC +24V

        Power consumption: ≤3W

    u   Dimension          

        Product size:        216X138X31mm(WXDXH)
        Simple packaging:  483X138X44mm(WXDXH)

    u  Working environment

        Working temperature: -10°C ~ 50°C
        Working Humidity: 5%~95 % (no condensation)
        Storage temperature: -40°C ~ 80°C
        Storage Humidity: 5%~95 % (no condensation)

    Application Scheme

    Applications 
    E1+1Channel Stereo Audio Codec

     

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