Introduction
The SFP‐BHDVXC‐0000‐L is an electrical SFP Transceiver module with optional reclockers (SFP‐BHDVXC‐0000‐R)
designed to transmit and receive SDI signals up to 2.97Gbps over 75Ω coaxial cables via HD‐BNC connectors.
Cable driver slew rate is automatically configured in order to achieve compliance to SMPTE 424M/ SMPTE
292M and SMPTE 259M. Equalizer features DC restoration to compensate for the DC content of SMPTE
pathological test patterns. On the SFP‐BHDVXC‐0000‐R, the reclocker procures optimal input & output jitter
performance
by suppressing accumulated jitter.
The SFP‐BHDVXC provides module identification information and diagnostic monitoring through a 2 wire serial
interface. It is also hot‐ pluggable solution for in field system upgrade and maintenance. The SFP‐BHDVXC is
interchangeable with others MSA pinout optical video SFP improving product flexibility. The module is SMPTE
compliant resulting in quick time‐to‐ market and reduced development effort and cost. The SFP‐BHDVXC is Pb‐
free and RoHS compliant.
Key Features
SMPTE 424M, SMPTE 292M, and SMPTE 259M compliant
HD‐BNC 75Ω connectors
Equalizes Belden 1694A cable up to: 140m at 2.97Gb/s, 200m at 1.485Gb/s and 400m at 270Mb/s
Integrated Reclocker and Cable Driver
Supports DVB‐ASI at 270Mb/s
Supports video pathological patterns for SD‐ SDI, HD‐SDI and 3G‐SDI
Hot‐pluggable
Control via serial interface including:
o
Output slew rate (SD or HD/3G)
o
Input signal detection (RX_LOS)
o
Voltage & Temperature Monitoring
o
Module Information
o
Reclocker Rate & Lock Monitoring
o
Bypass Reclocker stage
o
Autosleep feature on Rx channel
Low Power Consumption ‐ typical 1216mW
Single 3.3V
Pb‐free and RoHS compliant
Operating temperature range: ‐40°C to 80°C
58.5mm x 13.4mm x 8.6mm SFP Package
Ganged Cages & Stacked Cages mounting supported
Theory of Operation
The SFP‐BHDVXC Transceiver is a Small Form Factor Pluggable (SFP) module with coaxial interface. HD‐BNC
connectors are used to interface the module with 75Ω coaxial cables.
The SFP‐BHDVXC Transceiver will drive the differential TD± inputs to its TX coaxial output if TX_DIS input is low
and Soft Tx_Disable is low (Status/Control register bit6).
The slew rate of the SFP‐BHDVXC‐0000‐L output is configurable through the SERIAL CONFIG INTERFACE via
Soft Rate_Select and shall be configured based on the transmitted signal standard to ensure compliancy with
SMPTE specification. At power up, the default configured slew rate is compliant with HD/3G‐SDI signal.
Because the default slew rate is for HD‐SDI & 3G‐SDI, the host should detect if the module gets swapped via
MOD_DEF0. If module is replaced or hot swapped while driving an SD‐SDI signal, the new module will have the
wrong slew rate and it will require reconfiguration. The slew rate of the SDI outputs of the SFP‐BHDVXC‐0000‐
R is automatically configured by the reclocker and is compliant with SMPTE specification.
The SFP‐BHDVXC Transceiver automatically equalized the received signal (RX) for the cable loss and retimes
(reclocker version only) serial digital video data conforming to the SMPTE 424M, 292M and 259M. Without a
valid signal detected, the LOS output is active (open‐drain).
The SFP‐BHDVXC Transceiver module has a serial interface through which an EEPROM containing the SERIAL
IDENTIFICATION can be read. Through the same serial interface, diagnostic monitoring is provided via the
SERIAL CONFIG INTERFACE giving the opportunity to read the temperature, the supply voltage, the LOS status
and all reclocker features.
