5P49V6965_V01中文资料瑞萨数据手册PDF规格书

描述 Description

The 5P49V6965 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 I2

C interface. This is Renesas’ sixth generation of

programmable clock technology (VersaClock 6E).

The frequencies are generated from a single reference clock. The

reference clock can come from one of the two redundant clock

inputs. A glitchless manual switchover function allows one of the

redundant clocks to be selected 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 I2

C addresses to allow multiple devices to be used in a

system

特性 Features

▪ Flexible 1.8V, 2.5V, 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

• 2 select pins accessible with processor GPIOs or

bootstrapping

▪ I

2

C serial programming interface

• 0xD0 or 0xD4 I2C address options allows multiple devices

configured in a same system

▪ Reference LVCMOS output clock

▪ Four universal output pairs individually configurable:

• Differential (LVPECL, LVDS or HCSL)

• 2 single-ended (2 LVCMOS in-phase or 180 degrees out of

phase)

• I/O VDDs can be mixed and matched, supporting 1.8V

(LVDS and LVCMOS), 2.5V, or 3.3V

▪ Output frequency ranges:

• LVCMOS clock outputs: 1kHz to 200MHz

• LVDS, LVPECL, HCSL differential clock outputs: 1kHz to

350MHz

▪ Redundant clock inputs with manual switchover

▪ Programmable output enable or power-down mode

▪ Available in 4 × 4 mm 24-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

▪ Laser distance sensing