XC25BS3 Datasheet, PDF (1/10 Pages) Torex Semiconductor – CMOS Low Power Consumption

◆CMOS Low Power Consumption
■APPLICATIONS
◆Input Frequency : 14kHz ~ 35MHz
●Crystal oscillation modules
◆Divider Ratio
: 1~ 2047 Divisions
(Laser Trimming)
●Microcontroller
◆Multiplier Ratio : 20 ~ 2047 Multiplications ●PDAs
(Laser Trimming)
◆Comparative Frequency
●Portable audio systems
: 14kHz ~ 500kHz
●Various system clocks
◆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.
■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 CONFIGURATION
■PIN ASSIGNMENT
SOT-26
(TOP VIEW)
Q1
VDD
CLKin
Q0
VSS
CE
*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
pins, it should be connected to the VDD
pin.
PIN NUMBER
PIN NAME
SOT-26 USP-6B
FUNCTION
1
3
CE
Chip Enable
2
2
VSS
GND
3
1
Q0
PLL Output
4
6
Reference Oscillation, GND,
Q1
Comparative Frequency/2,
or PLL Output/2 Output *
5
5
VDD
Power Supply
6
4
CLKin
Reference Clock Input
* Q1 Output is selectable from the above mentioned functions.
XC25BS3 ETR1501_003
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