5V49EE904NLGI8

Specifications

Package VFQFPN 32 Voltage 3.3 V Temperature I Speed NA Divide Input Input Frequency Jitter cycle-to-cycle Multiply No. of Inputs No. of Outputs Output Output Frequency Output Skew Type


Description

EEPROM PROGRAMMABLE PLL
The 5V49EE904NLGI8 is a programmable clock generator intended for high performance data-communications, telecommunications, consumer, and networking applications. There are four internal PLLs, each individually programmable, allowing for four unique non-integer-related frequencies. The frequencies of 5V49EE904NLGI8 are generated from a single reference clock. The reference clock can come from one of the two redundant clock inputs. A glitchless automatic ormanual switchover function of 5V49EE904NLGI8 allows any one of the redundant clocks to be selected during normal operation.

The 5V49EE904NLGI8 is in-system, programmable and can be programmed through the use of I2C interface. An internal EEPROM allows the user to save and restore the configuration of the device without having to reprogram it on power-up.

5V49EE904NLGI8 features:

Four internal PLLs

Internal non-volatile EEPROM

Fast (400kHz) mode I2C serial interface

Input frequency range: 1 MHz to 200 MHz

Output frequency range: 4.9 kHz to 200 MHz

Reference crystal input with programmable linear load capacitance

Crystal frequency range: 8 MHz to 50 MHz

Four independently controlled VDDO (1.8V - 3.3V)

Each PLL has a 7-bit reference divider and a 12-bit feedback-divider

8-bit output-divider blocks

Fractional division capability on one PLL

Two of the PLLs support spread spectrum generation capability

I/O Standards:

Outputs - 1.8 - 3.3 V LVTTL/ LVCMOS

Inputs - 3.3 V LVTTL/ LVCMOS

Programmable slew rate control

Programmable loop bandwidth

Programmable output inversion to reduce bimodal jitter

Redundant clock inputs with glitchless auto and manual switchover options

Individual output enable/disable

Power-down mode

3.3V core VDD

Available in VFQFPN package

-40 to +85°C Industrial Temp operation