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  • Previous: SONET/SDH 155 Mbit/s OC3/OC-12 transceiver
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  • AMCC (Applied Micro Circuits Corporation ) : S3029

    SONET/SDH 155 Mbit/s Quad transceiver

    The function of the S3029 clock synthesis and recovery unit is to derive high speed timing signals for SONET/SDH-based equipment. The S3029 is implemented using AMCC\'s proven Phase Locked Loop (PLL) technology. The S3029 receives four STS-3/STM-1 scrambled NRZ signals and recovers the clock from the data and generates a 155 MHz transmit clock. The chip outputs a differential PECL bit clock and retimed data. The S3029 utilizes five on-chip PLLs which consist of a phase detector, a loop filter, and a voltage controlled oscillator (VCO). The phase detector compares the phase relationship between the VCO output and the serial data input. A loop filter converts the phase detector output into a smooth DC voltage, and the DC voltage is input to the VCO whose frequency is varied by this voltage. A block diagram is shown in Figure 2. There is a single clock multiplier PLL which generates a 155 MHz transmit clock from a 19.44 or 51.84 MHz input. Features are

    • Complies with ANSI, Bellcore, and ITU-T specifications for jitter tolerance, jitter generation
    • Five on-chip high frequency PLLs with internal loop filters for clock recovery
    • Supports clock recovery for STS-3/STM-1 (155.52 Mbit/s) NRZ data
    • Clock Multiplier PLL for transmit clock generation
    • 19.44 or 51.84 MHz reference frequency
    • Lock detect-monitors run length and frequency
    • Low-jitter differential interface
    • 3.3V supply
    • Available in a 64-pin TQFP package
    • Compatible with IgT WAC-413 ATM Quad-UNI processor

    Information used to be available at:

    http://www.amcc.com/Products/Sonet/prod_59.htm

    Technology: unknown
    Package: PQFP 64 Pin


    external WWW: Applied Micro Circuits Corporation : http://www.amcc.com/Products/Sonet/prod_59.htm web page used to be available at: http://www.amcc.com/Products/Sonet/prod_59.htm

    external PDF: http://www.amcc.com/pdfs/s3029.pdf


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