SMI4038 Datasheet, PDF (2/2 Pages) Semtech Corporation – 45 to 49 Gbps 2:16 DQPSK CDR/Demultiplexer

Product Brief
SMI4038 Block Diagram — 45 to 49 Gbps 2:16 DQPSK CDR/Demultiplexer
RXLF_P[1]
C1
C2
R
RXLOS [1 ]
EXTLOS
SEL
EXTLOS
>
PEAKDET 1[7:0]
RXLOS [0 ]
RXS_SEL [1:0]
Status
Control
RXS
OR
Logic
> LOS_TH[7:0]
PEAKDET 0[7:0
]
CDRLOCK_ERR_OR
Detector & Status
PRBS Block
Bias Current
Control
Select Resistor
Diode Temp.
Sensor
SFI-5 Block
RXLF_N[1]
RCLK1_EN
PH_ADJ1 [4: 0]
DAC
RCLK[1]P/N
RXDATAIN _DELAY 1[5:0]
PRBS
Error
Checker
Data Select
Frame
Generator
RXDATA_EN
RESP
RESN
1.0 K
GTEMP_P
GTEMP_N
RXDSCP/N
RXDATAIN[1]P/N
RXDATAIN[0]P/N
RCLK[0]P/N
RXLF_P[0]
C1
C2
R
RXLF_N[0]
RXREFCK P/N
RX_TEMP
+
DAC
TH_ADJ1[7:0]
TH_ADJ0[7:0]
DAC
+
Peak
Det
Peak
Det
RCLK0_EN
PH_ADJ0[4:0]
CDR Block
PTAT Temp.
Sensor
ADC TEMP
CDR
CDR
DAC
RXDATAIN_ DELAY 0 [5: 0]
Data Control
-1.6V
Regulator
Status
-1.6V
Reference
PRBS
Pattern
2⁷ /2³¹
Fixed
Data
SPI Subsystem
Control DACs
Control logic
. ^RXDAT. ^{A[15] P/N}
.
.
.
.
RXDATA[0] P/N
RXDCK_EN
Level
Shift
RXCLKSRC_EN
RXMCLK_EN
RXDCKP/N
FRAME_EPOCH
RESET_N
RXCKSRCP/N
RXMCLKP/N
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.
SIERRA
MONOLITHICS
WWW.SEMTECH.COM
SMI4038-PB