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XC25BS3 ETR1501_003

PIN NUMBER

SOT-26 USP-6B

PIN NAME

FUNCTION

1

3

CE

Chip Enable

2

2

GND

3

1

Q0

PLL Output

4

6

Q1

Reference Oscillation, GND,

Comparative Frequency/2,

or PLL Output/2 Output *

5

5

Power Supply

6

4

CLKin

Reference Clock Input

◆

CMOS Low Power Consumption

◆

Input Frequency

: 14kHz ~ 35MHz

◆

Divider Ratio

: 1~ 2047 Divisions

(Laser Trimming)

◆

Multiplier Ratio

: 20 ~ 2047 Multiplications

(Laser Trimming)

◆

Comparative Frequency

: 14kHz ~ 500kHz

◆

Output Frequency : 9MHz ~ 80MHz

■

GENERAL DESCRIPTION

The XC25BS3 series are high frequency, low power

consumption PLL clock generator ICs with built-in crystal

oscillator circuit, divider circuit & multiplier PLL circuit.

Laser trimming gives the option of being able to select from

divider ratios (M) of 1 to 2047 and multiplier ratio (N) of 20 to

2047. Output frequency (Q0) is equal to reference oscillation

(fCLKin) multiplied by N/M, within a range of 9MHz to 80MHz.

Q1 output is selectable from input reference frequency (f0),

Ground

(GND),

PLL

output

frequency/2

(Q0/2),

and

comparative frequency/2 (f0/M/2). Reference oscillation can

input 14kHz to 35MHz of reference clock. Further, comparative

frequency, within a range of 14kHz to 500kHz, can be obtained

by dividing the reference oscillation. By halting oscillation via

the CE pin, consumption current can be controlled. Output will

be one of high impedance.

■

APPLICATIONS

●

Crystal oscillation modules

●

Microcontroller

●

PDAs

●

Portable audio systems

●

Various system clocks

■

PIN CONFIGURATION

■

FEATURES

Output Frequency

: 9MHz ~ 80MHz (Q0=fCLKin×N/M)

Reference Oscillation

: 14kHz ~ 35MHz

(fCLKin)

Divider Ratio (M)

: Selectable from divisions of 1 ~ 2047

Multiplier Ratio (N)

: Selectable from multiplications

of 20 ~ 2047

Output

: 3-State

Q1 output selectable from

reference oscillation, GND, PLL

output frequency/2, comparative

frequency/2.

Operating Voltage Range: 2.97V ~ 5.5V

Low Power Consumption: CMOS (stand-by function included)*1

Ultra Small Package

: SOT-26, USP-6B

*1 High output impedance during stand-by

■

PIN ASSIGNMENT

*The dissipation pad for the USP-6B

package should be solder-plated in

recommended mount pattern and metal

masking so as to enhance mounting

strength and heat release.

If the pad needs to be connected to other

pin.

Q1

CLKin

Q0

CE

SOT-26

(TOP VIEW)

* Q1 Output is selectable from the above mentioned functions.