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S3029 Datasheet(PDF) 1 Page - Applied Micro Circuits Corporation |
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S3029 Datasheet(HTML) 1 Page - Applied Micro Circuits Corporation |
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1 / 11 page  1 S3029 SONET/SDH/ATM 155 MBIT/S QUAD TRANSCEIVER February 19, 1999 / Revision B BiCMOS PECL CLOCK GENERATOR DEVICE SPECIFICATION SONET/SDH/ATM 155 MBIT/S QUAD TRANSCEIVER S3029 ® FEATURES • 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 GENERAL DESCRIPTION The function of the S3029 clock synthesis and recov- ery unit is to derive high speed timing signals for SONET/SDH-based equipment. The S3029 is imple- mented 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 out- puts a differential PECL bit clock and retimed data. Figure 1 shows a typical network application. The S3029 utilizes five on-chip PLLs which consist of a phase detector, a loop filter, and a voltage con- trolled 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 fre- quency 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. Figure 1. System Block Diagram 155 Mbp/s Network Interface Processor 155 Mbp/s Network Interface Processor 155 Mbp/s Network Interface Processor 155 Mbp/s Network Interface Processor TXCLK TXDATA RXDATA RXCLK Optical Transceiver Optical Transceiver S3029 S3029 Optical Transceiver Optical Transceiver RX RX RX RX TXCLK TXDATA RXDATA RXCLK TXCLK TXDATA RXDATA RXCLK TXCLK TXDATA RXDATA RXCLK 155 Mbp/s Network Interface Processor 155 Mbp/s Network Interface Processor 155 Mbp/s Network Interface Processor 155 Mbp/s Network Interface Processor TXCLK TXDATA RXDATA RXCLK Optical Transceiver Optical Transceiver Optical Transceiver Optical Transceiver RX RX RX RX TXCLK TXDATA RXDATA RXCLK TXCLK TXDATA RXDATA RXCLK TXCLK TXDATA RXDATA RXCLK |
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