VSC8239 Datasheet, PDF (1/2 Pages) Vitesse Semiconductor Corporation – 9.953 Gbps to 11.3 Gbps Dual XFP Signal Conditioner

NETWORK PRODUCTS
VSC8239
9.953 Gbps to 11.3 Gbps Dual XFP Signal Conditioner
BLOCK DIAGRAM:
Receive RD+
Data Out RD–
REFCLK+
REFCLK–
HOSTS IDE
PIO[4:0]
Transmi t TD+
Data In TD–
LO LN
RXFILT
PIO4,
LOL_POL
RX_BYPSEL[ 3:0]
TX_LOL
OD
BY P
LOGI C
CK/4
RX CDR
DAC ^RX_BW
RX_OC
RX_GAI N
RX_BOOST
DAC
DAC
DAC
VGA
RXIN+
RXIN–
Rec ei ve
Data In
RX_B YPASS
S eri al
Interface
Control
TX_OC_
LOOP_ENB L
O ffset
Correction
CTRL
Signals
Read back
Signals
TX_LOL
LI NE_LPBCK/
T X_DINV
RX_LT R
HOST_ LPBCK/
RX_ DI NV
O ffset
Correction
RX_OC_
LOOP_ENBL
LOS_ POL
LOS/ LOT
LOS
Thr DAC
SET/ CLR DAC
RX _LO S
LINES IDE
TX_ LTR
VG A
DAC
DAC
DAC
TX_BOOST
TX_GAI N
TX_OC
TX_BW
DAC
TX CDR
CK /4
BYP
L OGIC
TX_BYPA SS
TX_ BYPSEL[ 3:0]
TXFILT
OD
TXOUT+ Transmit
TXOUT– Data Out
CDD12
FEATURES:
4Small size – 32-Pin, QFP (5 mm x 5 mm) package
BENEFITS:
4Reduces board space usage
49.953 Gbps to 11.3 Gbps operation
4Integrated loopback functions
4Continuous tuning of the operation frequency without needing to select
between VCO
4Provides on-chip line and diagnostic functions
4Programmable gain and equalization for Rx and Tx
4Two-wire Serial Interface/SPI Serial Control Interface
410 mV typical input sensitivity
4Allows optical and XFI adaption of input signals for optimized sensitivity
and jitter performance
4Allows serial access to internal control registers
4Provides long-haul receive optical sensitvity
4Built In Self Test (BIST) features including flexible error detection modes
4Full XFP compliant jitter specifications
4Allows for built in test signal generation of industry standard PRBS and
user defined-patterns coupled with a full rate error detection capability
4Fully meets all XFP MSA SONET and datacom jitter specifications
including jitter generation, tolerance, and transfer
SPECIFICATIONS:
49.953 Gbps to 11.3 Gbps operation
410 mV typical input sensitivity
45 mm x 5 mm package
4Full XFP compliant jitter specifications
4XFI compliant IO specifications
41.8 V single power supply
4600 mW typical power dissipation
PB-VSC8239-001