XC25BS8 Datasheet, PDF(1/14 Page) Torex Semiconductor – Ultra Small PLL Clock Generator ICs with Built-In Divider/Multiplier Circuits

English

English German Russian Spanish Italian Polish Chinese Japanese Korean French Portuguese	Language :

XC25BS8 Datasheet, PDF (1/14 Pages) Torex Semiconductor – Ultra Small PLL Clock Generator ICs with Built-In Divider/Multiplier Circuits

XC25BS8 Series

ETR1506-003

Ultra Small PLL Clock Generator ICs with Built-In Divider/Multiplier Circuits

Preliminary

ËGENERAL DESCRIPTION

The XC25BS8 series is an ultra small PLL clock generator IC which can generate a high multiplier output up to 4095 from an input frequency as

low as 8kHz. The series includes a divider circuit, phase/frequency comparator, charge pump, and VCO so it is possible to configure a fully

operational circuit with a few external components like one low-pass filter capacitor. The Input divider ratio (M) can be selected from a range of 1

to 2047, the output divider ratio (N) can be selected from a range of 1 to 4095 and they are set internally by using laser timing technologies.

Output frequency (fQ0) is equal to input clock frequency (fCLKin) multiplied by N/M. Output frequency range is 1MHz to 100MHz. Reference clock

from 8kHz to 36MHz can be input as the input clock. The IC stops operation and current drain is suppressed when a low level signal is input to the

CE pin which greatly reduces current consumption and produces a high impedance output.

The setting of the input divider ratio (M), output divider ratio (N), and charge pump current (Ip) are factory fixed semi-custom. Please advise your

Torex sales representative of your particular input/output frequency and supply voltage specifications so that we can see if we will be able to

support your requirements. The series is available in small SOT-26W and USP-6C.

ËÃ§APPLICATIONS

ËÃ§ Clock for controlling a Imaging dot (LCD)

ËÃ§ DSC (Digital still camera)

ËÃ§ DVC (Digital video camera)

ËÃ§ PND (Car navigation system)

ËÃ§ UMPC (Ultra Mobile Personal Computer)

ËÃ§ SSD (Solid State Disk)

ËÃ§ Digital Photo Frame

ËÃ§ Microcomputer and HDD drives

ËÃ§ Cordless phones & Wireless communication

equipment

ËÃ§ Various system clocks

ËFEATURES

Input Frequency Range

: 8kHz ~ 36MHz (*1)

Output Frequency Range

Output Divider (N) Range

Input Divider (M) Range

Operating Voltage Range

Low Power Consumption

: 1MHz ~ 100MHz

(fQ0=fCLKin Ã N/M) (*1)

: 1 ~ 4095 (*1)

: 1 ~ 2047(*1)

: 2.50V ~ 5.50V (*1)

: 10ÐA MAX. when stand-by (*2)

Small Packages

: SOT-26W, USP-6C

*1: The series are semi-custom products. Specifications for each

product are limited within the above range. The input frequency

range is set within Â±5Ë of customerâs designated typical frequency.

Please note that setting of your some requirements may not be

possible due to the specification limits of this series.

*2: When the IC is in stand-by mode, the output becomes high impedance

and the IC stops operation.

ËTYPICAL APPLICATION CIRCUIT

*1Ã§

ËÃ§TYPICAL PERFORMANCE

CHARACTERISTICS

PLL Output signal jitter 2 (tJ2) (synchronous to an input signal)

Ã§ Ã§ XC25BS8001xx (610 multiplier, input 15kHz (TYP.))

Input Signal

fCLKin

Output jitter

tJ2=20(ns)

Output Signal

fQ0

*1: CIN (by-pass capacitor, 0.1ÐF) and LPF should be connected

to the IC as close as possible.Ã§

1/14

▷