Product Brief OPTICAL TRANSPORT & DATACOM PRODUCTS SMI4027 39.8 to 44.6 Gbps 16:1 Multiplexer/CMU Product Description SMI4027 is 16:1 Multiplexer with on chip clock multiplier unit that supports data rates from 39.8 to 44.6 Gbps. Product Highlights 4 User-Enabled Differential Precoder Function 4 SFI-5 Compliant Client-Side Interface 4 Ground-Referenced High-Speed Differential Output Ports 0.5 to 1.0 Volt pp Differential Output Level (Adjustable) 11 psec (typical) Rise/Fall Times 3 psec p-p Total Jitter (typical) 4 High-Speed Differential Clock Outputs with Low Phase Noise Half-Rate (19.9 to 22.3GHz) and Quarter-Rate (9.95 to 11.15 GHz) User-Enabled Outputs Ground-Referenced CML Clock-to-Data Skew control of +/- 0.5UI 0.4 to 0.8 Volt pp Differential Output Level 4 SONET-compliant Clock Multiplier Unit (CMU) with On-Chip VCO 4 User Selectable Reference Clock Input Ports 4 Reference Clock Clean-Up Loop Circuitry 4 PRWS Error Checker and Pattern Generator: 27-1 or 231-1 patterns On-Chip Error Counter for Measuring BER Lane-by-Lane Error Checking 4 512-Bit Arbitrary Pattern Generator 4 SPI Control Interface Supports 1.2V or 1.8V LVCMOS 4 Temperature Sense Output Voltage 4 Dual-Power Supply Voltages: +1.2 or +1.8V and -2.8V 4 Low Power Consumption: 2.5 Watts Applications 4 OC768/OTU3 Modules and Transponders 4 MSPP, ADM and Cross-connects 4 IP Routers and Switches W W W .SE MTE CH .COM SIERRA MONOLITHICS Product Brief SMI4027 Block Diagram — 16:1 Multiplexer/CMU with Differential Precoder RESP Bias Current Control Data Select .. . . . . 17 Channel DLL Array TXDATA[1]P/N TXDATA[0]P/N 17xN Channel FIFO Array DATA_0 WRCLK_0 PRBS Block TXDSCP/N DLLCLK_SEL 2:1 16: 1 1, ½ HSCLK_PH 0[6:0] DAC HSCLK0_ LVL [2:0] 1, ½ DAC HSCLK1_ LVL [2:0] Clock Multiplier Unit (CMU) TXMCLKP/N HSCLK0 _EN DAC HSCLK[1]P/N ∆φ HSCLK1_FSEL HSCLK_PH 1[6:0] HSCLK[0]P/N ∆φ HSCLK0_FSEL X4 PLL TXDCKP/N TXDATAOUT_P/N TXDATA_DCA[4:0] Fixed Data PRBS Pattern 27 /231 DAC TXDATA_LVL [2:0] Mux TXDATA[14]P/N TXDATA_SEL[1:0] Deskew DATA_15 WRCLK_15 Differential Precoder PRBS Error Checker 1.0 K Mux Block PRECODER_EN CMU Block TXDATA[15]P/N Select Resistor RESN HSCLK1 _EN DAC TXLF_P C1 CMU_LOCK R TXLF_N C2 TXMCLK_EN SFI-5 Transmit Controller DESKEW _EN TXOOA SFI-5 Block ADC TEMP SPI Subsystem TXCKSRCP/N 2:1 PHSERR_EN PHSERR_UPP/N PHSERR_DNP/N Phase Detect REFPLL P/N TXREFCLKP/N SPI_EN_N SPI_CLK SPI_DIN SPI_DOUT VCC Digital -1.6V Reference REFN16_OUT REFN16_IN VEE Digital VDD Digital VEE -1.6V Regulator VCC VDD_SFI5 Diode Temp. Sensor VCC_VCO GTEMP_P GTEMP_N VEE_VCO TX_TEMP PTAT Temp. Sensor REFSEL Ref Select Block RESET_N Control DACs Control logic Status FRAME_EPOCH_EN Deskew Correlator VDD Control Frame Header Acquistion FRAME_LOCK FRAME_EPOCH Interface Definitions SFI5 compatabile I/O LVCMOS (1.2, 1.8V) GND referenced CML AC coupled CML Sierra Monolithics Inc. is now part of Semtech Incorporated. To view the most current product specifications and datasheets, contact your local Semtech Field Applications Engineer. W W W .SE MTE CH .COM SIERRA MONOLITHICS SMI4027-PB