describe
5P49V6968 is a programmable clock generator designed for high-performance consumer, network, industrial, computing, and data communication applications. This is the sixth generation programmable clock technology (VersaClock 6E) from Renesa Company.
5P49V6968 generates frequency from a single reference clock, which can come from one of two redundant clock inputs. A fault free manual switching function that allows the selection of one of the redundant clocks during normal operation.
Two selection pins allow up to four different configurations to be programmed and can be used for different operating modes.
Features
Flexible 1.8V, 2.5V, and 3.3V power rails
High-performance, low phase noise PLL, <0.5ps RMS typical
phase jitter on outputs
Four banks of internal OTP memory
• In-system or factory programmable
I2C serial programming interface
• 0xD0 or 0xD4 I2C address options allow multiple devices to
be configured in a same system
Reference LVCMOS output clock
Three universal configurable outputs (OUT1, 2, 4):
• Differential (LVPECL, LVDS, or HCSL) 1kHz to 350MHz
• Two single-ended (in-phase or 180 degrees out of phase)
1kHz to 200MHz
• I/O VDDs can be mixed and matched, supporting 1.8V
(LVDS and LVCMOS), 2.5V, or 3.3V
• Independent spread spectrum on each output pair
Eight additional LPHCSL outputs (OUT 3, 5–11)
• 1.8V low power supply
• 1kHz to 200MHz
Programmable output enable or power-down mode
Redundant clock inputs with manual switchover
Available in 6 × 6 mm 48-VFQFPN package
-40° to +85°C industrial temperature operation
Typical Applications
Ethernet switch/router
PCI Express 1.0/2.0/3.0/4.0 spread spectrum on
PCI Express 1.0/2.0/3.0/4.0/5.0 spread spectrum off
Broadcast video/audio timing
Multi-function printer
Processor and FPGA clocking
Any-frequency clock conversion
MSAN/DSLAM/PON
Fiber Channel, SAN
Telecom line cards
Datacenter