Product Brief OPTICAL TRANSPORT & DATACOM PRODUCTS SMI5037 56 Gbps 2:16 DQPSK CDR/Demultiplexer Product Description SMI5037 is 2:16 demultiplexer with integrated DQPSK decoder function that supports the data rate up to 56Gbps consistent with the SFI-5 standards. Product Highlights 4 2:16 CDR/Demultiplexer with Integrated DQPSK Decoder Function 4 Dual Ground-Referenced Serial Input Ports operating at rates from 27.6 to 28.3 Gbaud 4 Ground-Referenced Serial Input Ports 4 SFI-5+ Compatible Data and Clock Interfaces 4 Dual On-Chip (CDR’s) 4 CDR Lock Status Indicators 4 On-Chip PRBS Error Checker and Pattern Generator: 27-1 or 231-1 industry-standard patterns 4 100 mVp-p Input Sensitivity 4 Adjustable Input Threshold and Sample Clock Phase for each input channel 4 User-Selectable Reference Clock Input: 4 4 4 4 SPI Control Interfaces Support 1.2V or 1.8V LVCMOS Temperature Sense Output Voltage Power Supplies: 1.2 to 1.8V, and -2.8V (Vee) Low Power Consumption: 2.2 Watts (typical) Applications 4 OTU4/100GE Modules and Transponders 4 IP Routers and Switches W W W .SE MTE CH .COM SIERRA MONOLITHICS Product Brief SMI5037 Block Diagram — 2:16 DQPSK CDR/Demultiplexer EXTLOS SEL Status Control Logic OR EXTLOS RCLK1_EN RXDATAIN _DELAY 1[5:0] RCLK[1]P/N + TH_ADJ1[7:0] TH_ADJ0[7:0] Peak Det DAC RXDATAIN[0]P/N CDR Peak Det DAC Line Side Deskew RXDATAIN[1]P/N CDR + RXDATAIN_DELAY0[5:0] CDR Block SWAP_01 RXLF_P[0] DAC PH_ADJ0[4:0] C1 C2 R INVERT[1:0] RCLK[0]P/N RCLK0_EN SFI-5 Block PRBS Block DAC PH_ADJ1[4:0] GTEMP_P GTEMP_N Diode Temp. Sensor PRBS Error Checker Data Select Frame Generator RXDSCP/N RXDATA_EN . . . Fixed Data DECODER_EN RXLF_N[1] ADC ADC R PRBS Pattern 27 /231 FRAME_EPOCH RESET_N RXLF_N[0] RXREFCK P/N Status Control DACs Control logic SPI Subsystem RXCKSRCP/N RXCLKSRC_EN RXMCLKP/N VDD_Control RXMCLK_EN SPI_EN_N SPI_CLK SPI_DIN SPI_DOUT VCC_Digital -1.6V Reference REFN16_OUT VEE_Digital VDD_Digital VEE REFN16_IN -1.6V Regulator TEMP VCC VDD_SFI5 VCC_VCO_1 VEE_VCO_1 VCC_VCO_0 VEE_VCO_0 ADC . . RXDATA[0] P/N RXDCKP/N Level Shift PTAT Temp. Sensor RXDATA[15] P/N . RXDCK_EN Data Control RX_TEMP 1.0 K RESN Select Resistor CDRLOCK_ERR_OR LOS_TH[7:0] PEAKDET 0[7:0 ] PEAKDET 1[7:0] C1 C2 Bias Current Control RXS CDR_LOCK_ERR[0] RXLF_P[1] > CDR_LOCK_ERR[1] > RESP Detector & Status RXS_SEL [1:0] TXDATA_ SEL[1:0] RXLOS[0] DQPSK Decoder RXLOS[1] 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 SMI5037-PB