特性
- 3 LVCMOS outputs, including 1 reference output
- In-system programmable with 2 independent output frequencies
- Up to 200 MHz input/output frequencies
- Also supports crystal input
- Stores 4 different configurations in OTP non-volatile memory
- < 100 mW core power (at 3.3V)
- < 0.7 ps RMS phase jitter (typ)
- Meets PCIe® Gen1/2/3, USB 3.0, 1/10 GbE clock requirements
- 1.8 / 2.5 / 3.3V core and output voltages
- 4x4 mm 24-ld VFQFPN
- -40° to +85°C operating temperature range
- Supported by Timing Commander™ software tool
描述
The 5P49V5923 is low-power programmable clock generator with best-in-class jitter performance and design flexibility with LVCMOS outputs capable of generating any output frequency. The 5P49V5923 is 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 I2C interface. This is Renesas' fifth generation of programmable clock technology (VersaClock® 5). The frequencies are generated from a single reference clock or crystal input. A glitchless manual switchover function allows one of the redundant clock inputs to be selected during normal operation.
Two select pins allow up to 4 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.