VSC8238 Datasheet, PDF (1/2 Pages) Vitesse Semiconductor Corporation – 10.3125 Gbps Advanced Electronic Equalization with Limiting Amplifier, and Clock and Data Recovery

TRANSPORT PHYSICAL LAYER
VSC8238
10.3125 Gbps Advanced Electronic Equalization with Limiting Amplifier, and Clock and Data Recovery
BLOCK DIAGRAM:
Initialization and Control
Link Monitor
VSC8238
Micro-Controller
Interface
Error Proxy
10.3125 Gbps
RXDATA_IN
AGC
VSC8238
FFE/DFE EQ Limiting Amplifier
and CDR
10.3125 Gbps
RXDATA_OUT
FEATURES:
` Multitap FFE and DFE filter
` Integrated CDR and XFI output driver
` Integrated AGC and offset controls
BENEFITS:
` Provides superior modal dispersion compensation and exceeds
10GBASE-LRM specifications
` Provides XFP-compatible Rx CDR for XPF LRM module applications
` Provides robust handing of wide TIA input signal range and duty cycle
conditions
FUNCTIONAL BLOCK DIAGRAM:
RXLOL REFCLK LTREF REF_SEL
LF
(Ext Cap)
AGC_IN
AGC
Equalizer, Limiting Amplifier, and CDR
Link
Monitor
SPI or Parallel
Interface
RSTN
APPLICATIONS:
` XENPAK/X2 10GBASE-LRM module applications
` XFP 10GBASE-LRM module applications
To Micro-Controller
Link Monitor
EQ_OUT
VPPD-01657
Revision 1.0