Description
The 5X35023 is the latest VersaClock programmable clock
generator with an integrated crystal, and is designed for low
power, consumer, and high-performance PCI Express
applications.
The 5X35023 device is a 3 PLL architecture design, and each PLL
is individually programmable allowing for up to 6 unique
frequencies outputs. The device has built-in unique features such
as Proactive Power Saving (PPS), Performance-Power Balancing
(PPB), Overshoot Reduction Technology (ORT) and Extreme Low
Power DCO.
An internal OTP memory allows the user to store the configuration
in the device, after power up, user can change the register setting
through the I2
C interface when I2
C mode is selected. The device
has programmable VCO and PLL source selection to allow
power-performance optimization base on the application
requirements. The device supports 3 single-ended outputs and
two pairs of differential outputs that support LVCMOS, LVPECL,
LVDS and LP-HCSL.
Low Power 32.768kHz clock is supported with only less than 2μA
current consumption for system RTC reference clock.

Features
▪ Configurable OE pin function as OE, PD#, PPS or DFC control
function
▪ Configurable PLL bandwidth; minimizes jitter peaking
▪ PPS: Proactive Power Saving features save power during the
end device power down mode
▪ PPB: Performance-Power Balancing feature allows minimum
power consumption base on required performance
▪ DFC: Dynamic Frequency Control feature allows up to 4
difference frequencies to switch dynamically
▪ Spread spectrum clock support to lower system EMI
▪ I
2
C interface
▪ Integrated crystal