特性
- 4 differential outputs LVPECL, LVDS, HCSL - or 4 LVCMOS outputs
- <0.7ps RMS typical phase jitter on outputs
- Four fractional output dividers (FODs)
- Independent spread spectrum capability on each output pair
- Stores 4 different configurations in OTP non-volatile memory
- Up to 350MHz input/output frequencies
- Redundant clock inputs with manual switchover
- Programmable loop bandwidth, output to output skew, slew rate control
- Individual output enable/disable
- Meets PCIe® Gen 1/2/3, USB 3.0, 1/10 GbE clock requirements
- 1.8/2.5/3.3V core and output voltages
- 4mm x 4mm 24-pin VFQFPN package
- -40 °C to +85 °C operating temperature range
- Supported by Renesas' Timing Commander™ software tool
描述
The 5P49V5935 is a programmable clock generator intended for high-performance consumer, networking, industrial, computing, and data communications applications. Configurations may be stored in on-chip One-Time Programmable (OTP) memory or changed using an I²C interface. This is Renesas' fifth generation of programmable clock technology (VersaClock® 5). The 5P49V5935, by default, uses an integrated 25MHz crystal as an input reference. It also has a redundant external clock input. A glitchless manual switchover function allows the selection of either input reference during normal operation.
Two select pins allow up to four different configurations to be programmed and accessible using processor GPIOs or bootstrapping. The different selections may be used for different operating modes (full function, partial function, partial power-down), regional standards (US, Japan, Europe), or system production margin testing. The device may be configured to use one of two I²C addresses to allow multiple devices to be used in a system.
应用
- Ethernet switch/router
- PCI Express 1.0/2.0/3.0
- Broadcast video/audio timing
- Multi-function printer
- Processor and FPGA clocking
- Any-frequency clock conversion
- MSAN/DSLAM/PON
- Fiber Channel, SAN
- Telecom line cards
- 1GbE and 10GbE